P5B Deluxe Vmods

[El Paris]

Hi :)
this week i''l get an Asus P5B Deluxe
and i was thinking about some vmods..
could someone help me?:)
thx a lot

Fabio:cool:

[Onepagebook]

same as p5wdh and ws pro

[hicookie]

i bought the mobo yesterday.
here is Vdimm mod,notice , own the risk by urself:)
http://img.oc.com.tw/8k0285/2006818537624230440832.jpeg

[ph363]

http://www.xtremesystems.org/forums/showthread.php?t=110121&page=5

look at the third post form top

[hicookie]

http://img.oc.com.tw/8k0285/2006821172341783472953.jpeg

http://img.oc.com.tw/8k0285/200682117241617220627344.jpeg

http://img.oc.com.tw/8k0285/200682117255720765539002.jpeg

[andL64]

thx hicookie

these are very nice high res pics, and good marked.

*saved*

[Unseen]

how about non deluxe version?

[OC_Windforce]

thx hicookie
good job :clap:

[OC_Windforce]

VFSB MOD & measure point ?

[Millyons]

guys i guess the vdrop mod can be done with a pencil righ?

[T07N]

I don't recommend you do these pencil mods. They can be very unstable and you will not get the exact voltage you want. Sometimes, it can be too much voltage. I offer soldering service for a reasonable price. Invest a little rather than fry your board, mem, or cpu.

http://www.xtremesystems.org/forums/showthread.php?t=112093

[remorema]

can someone please tell me the soldering points to v-droop & vdimm mods on a non deluxe model.

tkx

[Millyons]

I don't recommend you do these pencil mods. They can be very unstable and you will not get the exact voltage you want. Sometimes, it can be too much voltage. I offer soldering service for a reasonable price. Invest a little rather than fry your board, mem, or cpu.

http://www.xtremesystems.org/forums/showthread.php?t=112093


Any Non-self advertising opinions? :stick:


ps: i dont have a problem with soldering but i rather pencil it

[Millyons]

anyone?

[mion]

guys i guess the vdrop mod can be done with a pencil righ?
yes

[Millyons]

what is you guyses resistance after adjusting it

[DDaniel]

Today i´ve been busy doing some of the vmods in Raptors board here is the result.

it´s kind of modular so i can turn it on and off easily and also read the measure point


Vmem
Vcore
Vdrop
VMCH


the other conector is used for ground to any fan conector on the board

tomorow or after it i´ll post the full motherboard layout




http://img176.imageshack.us/img176/7070/p5bmod4xv9.jpg

http://img148.imageshack.us/img148/1314/p5bmod2je5.jpg

http://img148.imageshack.us/img148/307/p5bmod1mb0.jpg




(THIS WAS BEFORE THE VMODS NO TWEEK either,)

Air cooling

http://img124.imageshack.us/img124/2393/14782ez1.jpg

http://img81.imageshack.us/img81/6858/bestmc7.jpg

[T07N]

Any Non-self advertising opinions? :stick:


ps: i dont have a problem with soldering but i rather pencil it

Ok, I warned ya.

[jVIDIA]

Ganda mod Daniel :D

But is there any vdroop pencil mod for the P5B Deluxe ?

thkx

[Ramguy]

Yes please let us know, if any pencil mod(s) exist. Thanks

[sdumper]

I don't recommend you do these pencil mods. They can be very unstable and you will not get the exact voltage you want. Sometimes, it can be too much voltage. I offer soldering service for a reasonable price. Invest a little rather than fry your board, mem, or cpu.

http://www.xtremesystems.org/forums/showthread.php?t=112093

PM me with a price on the P5B Deluxe and the P5W Deluxe I need vMCH and Vcore...

I am seeing a big lag in the vcore between the P5B Deluxe and the P5W deluxe.

[sdumper]

I don't recommend you do these pencil mods. They can be very unstable and you will not get the exact voltage you want. Sometimes, it can be too much voltage. I offer soldering service for a reasonable price. Invest a little rather than fry your board, mem, or cpu.

http://www.xtremesystems.org/forums/showthread.php?t=112093

I can get this link to work is it valid?

[DEVIL K-ce]

3V to ram (vdimm) = dead mobo. :slapass: CPU, mem, gpu ... is live, but not P5B Dlx.

[N3RO]

http://img124.imageshack.us/img124/2393/14782ez1.jpg

493mhz :| i'll kill my board... :(

[DEVIL K-ce]

493mhz :| i'll kill my board... :(

:( Black series P5B Dlx :stick:

[T07N]

Just did one of these boards for another customer:

http://img142.imageshack.us/img142/5246/p5bvoltmod001pr4.jpg
http://img142.imageshack.us/img142/1356/p5bvoltmod002yk2.jpg

[funkflix]

Is there a Vcore mesure point?

[Millyons]

can someone tell me what resistance they have after ajusting vdoop, please, i need it just to do it once since my board is in the case and i dont have space in my room to set it up outside it and test the resistance and vdroop i get


thanks

[funkflix]

Is there a Vcore mesure point?

Anyone? I really need it! :)

[Revv23]

Anyone? I really need it! :)

Lol try any one of the coils around the cpu.


My question, does anyone know if the Vdroop mod will allow higher fsb on FSB limited chips?

[NO1B4ME]

Man nice pics, thanks for the info.

[metro.cl]

what kind of cables do you use? i tryed a 1 wire cable made of cupper and it was a pain to solder.

Can i use multi wire cables? i got some that are easier to manipulate

[T07N]

ebay or mouser.com... are you no1b4me from the DSS scene? Or is no1b4me a popular name from some type of show or something.

[NO1B4ME]

ebay or mouser.com... are you no1b4me from the DSS scene? Or is no1b4me a popular name from some type of show or something.



That is where i got the name from...

[jVIDIA]

Does the p5wd2 premium vdroop mod works on the p5b dlx ones ?

[K404]

For the VDIMM mod:

Does the pot over-ride the BIOS control, or supplement it?

Ie... if I set BIOS to...e.g 2.35V then tune the pot down to hit 2.45V, then go back into BIOS and up my VDIMM to 2.4V...what effect will the pot have on that value?

Its the kinda question i`d like to know the answer to before I try ;) tho part of me wants to set 1.8V in BIOS and start playing

Thanks,

Kenny

[Revv23]

For the VDIMM mod:

Does the pot over-ride the BIOS control, or supplement it?

Ie... if I set BIOS to...e.g 2.35V then tune the pot down to hit 2.45V, then go back into BIOS and up my VDIMM to 2.4V...what effect will the pot have on that value?

Its the kinda question i`d like to know the answer to before I try ;) tho part of me wants to set 1.8V in BIOS and start playing

Thanks,

Kenny

You tune overvoltage over bios setting. so if you set to 2.4v in bios it raises vdimm.... Use a DMM though, as bios setting 2.45 is right but 2.3v is not... at least in my case.

For example with my board set to 2.45 i get 2.79v, with my board set to 2.35 i get 2.6, .2v off even though i only stepped down .1v in bios. The situation is the same with the MCH.

[K404]

Thankyou very much ;)

[sbinh]

Today i´ve been busy doing some of the vmods in Raptors board here is the result.

it´s kind of modular so i can turn it on and off easily and also read the measure point


Vmem
Vcore
Vdrop
VMCH


the other conector is used for ground to any fan conector on the board

tomorow or after it i´ll post the full motherboard layout




http://img176.imageshack.us/img176/7070/p5bmod4xv9.jpg

http://img148.imageshack.us/img148/1314/p5bmod2je5.jpg

http://img148.imageshack.us/img148/307/p5bmod1mb0.jpg




(THIS WAS BEFORE THE VMODS NO TWEEK either,)

Air cooling

http://img124.imageshack.us/img124/2393/14782ez1.jpg

http://img81.imageshack.us/img81/6858/bestmc7.jpg

DDaniel,

How big are those blue thingies (Kilo Ohm) ? and how many turns?
I plan to mod vcore only .... (probably all later on)

[Revv23]

for the vcore ones most use 50k, but some use 20 and its works ok, you just start out a bit higher.

25turns.

[sbinh]

for the vcore ones most use 50k, but some use 20 and its works ok, you just start out a bit higher.

25turns.

Thank you. Just ordered some to play with ... :D

[F.B.I]

When I finish the vdimm mod .... which is the value of the vddim that I must select in the BIOS ??? :confused:

wich is the value (in ohms) that I must put on the VR ???


salu2 :woot:

[fatty]

you need to go to hardware monitor in the bios it wont matter what you set the volts too once you vmod the mobo only the vmod can change the volts in hardware monitor you can see the vcore and adjust it with the 50k ohm if you hit over 1.87 ish the system may reboot a lot

[F.B.I]

I not understand much.
Let's suppose that I want my memories working to 2.60 volts.

Which is the voltage that I select in the BIOS?
In all the ohms has VR to be ?

I do not speak english...I used a traslator :(

[K404]

@F.B.I:

It doesnt really matter what VDIMM you set in BIOS, but for 2.6VDIMM, set to maximum in BIOS- this means you dont have to use the variable resistor so much to get to 2.6VDIMM

Hope this helps :)

Kenny

[K404]

The MCH mod for this board is crazy- hardest mod i`ve ever tried..the solder really doesnt want to stick to the IC pin. AT ALL. :(

Might just leave it alone before I break something. Wish my MCH voltage didnt undervolt so much...1.55V BIOS gets 1.48V real

[DEVIL K-ce]

The MCH mod for this board is crazy- hardest mod i`ve ever tried..the solder really doesnt want to stick to the IC pin. AT ALL. :(

Might just leave it alone before I break something. Wish my MCH voltage didnt undervolt so much...1.55V BIOS gets 1.48V real
Hmmm

Maybe You must try another metod :

+ to IC
- to fan connector

Easy ;)

[K404]

Hmmm

Maybe You must try another metod :

+ to IC
- to fan connector

Easy ;)

WHOA! I just had another look after what you said... the FB pin (pin 6) is the one I can solder easily, and my VDIMM mod is grounded to a 3-pin fan connection so I can turn it off...i`m gonna try it that way! Thanks for the idea!

EDIT: I tried it... K-ce I owe ya one! I`ll get a pic up tomorrow when its light here. Its pretty ghetto stuff! :D

[DEVIL K-ce]

No problem :toast:

[F.B.I]

:confused: for what is the conection on the 3-PIN (fan) ???

[DEVIL K-ce]

:confused: for what is the conection on the 3-PIN (fan) ???
Ground

[F.B.I]

wich sofware or where is the part of the bios that i can see de vdimm ? :D :( :p:

[Clueless]

Could this be why my E6600 is limited to 3.6Ghz stable?

[Nosfer@tu]

what kind of cables do you use? i tryed a 1 wire cable made of cupper and it was a pain to solder.

Can i use multi wire cables? i got some that are easier to manipulate

1 wire are often harder to solder, but easyer to manupulate and VERY small.

You can use ANY thing you want, just as long as it conducts electricity.
And with multi whire cabels you just cut some of the end. Lets say 66% of the whires ;) That makes it alot easyer to solder because you make it so small.

[K404]

wich sofware or where is the part of the bios that i can see de vdimm ? :D :( :p:


Cant remember if BIOS has VDIMM monitor under "hardware monitor" if not, you`ll need to probe with a multimeter.....

http://img100.imageshack.us/img100/8464/p5bdhvdimmreadpointsf6.jpg (http://img100.imageshack.us/my.php?image=p5bdhvdimmreadpointsf6.jpg)

On the red dot.


Could this be why my E6600 is limited to 3.6Ghz stable?

possibly, tho i`d say probably not....whats your current MCH voltage?

Kenny

[F.B.I]

Cant remember if BIOS has VDIMM monitor under "hardware monitor" if not, you`ll need to probe with a multimeter.....

http://img100.imageshack.us/img100/8464/p5bdhvdimmreadpointsf6.jpg (http://img100.imageshack.us/my.php?image=p5bdhvdimmreadpointsf6.jpg)

On the red dot.




possibly, tho i`d say probably not....whats your current MCH voltage?

Kenny


thank you! :toast: :)

[shimmishim]

anyone know what resistance value the VR should be set to for the vcore droop mod?

i'm getting a HUGE droop (0.07 to 0.09 volts).

[eva2000]

anyone know what resistance value the VR should be set to for the vcore droop mod?

i'm getting a HUGE droop (0.07 to 0.09 volts).
same here upto 0.09v vcore droop !

someone said pencil can be used for droop mod ? how exactly ? :)

thanks

[bachus_anonym]

Guys, you do realize that this motherboard undervolts from the get-go, right? From what I have gathered, it was usually anywhere between 0.05v (like on my board) to 0.07v, measured with multimeter. This is not vdroop, in case some are wondering, and vdroop mod will not fix that. For that you will need vcore-mod. Actual Vdroop can only be observed under full load and with a multimeter and its range may also vary - believe it or not on my board it's almost not noticeable.

Just in case, we're not on the same page... :D

[sbinh]

Question:
When you do vmod .. Is it required to do the vdroop also?
I do the vmod (with 2 x 50KVR in serie mode) and vcore only dropped 0.01-0.02v...

[kiwi]

Did you notice considerable cpu temp increase after vmod? I tested 3 chips and they all run real hot on my dlx. If I set 1.5 or more cpu starts throttling (all disabled in bios) at 85C+. This is on water, I keep it at 1.45V.

[K404]

@B_A mainly..yea, i`m getting similar. Droop is almost zero, but Core and MCH voltages undervolt compared to BIOS quite majorly. VDIMM overvolts 0.05V

[Millyons]

Did you notice considerable cpu temp increase after vmod? I tested 3 chips and they all run real hot on my dlx. If I set 1.5 or more cpu starts throttling (all disabled in bios) at 85C+. This is on water, I keep it at 1.45V.


I know this is OT but just to say....thats mostly up to the chips, i tested 5 6600 all different weeks, in same case, same hsf, etc, just chips changed.

measured with core temp the hottest of them was about 75c at 1.45 and 3.4ghz at 1.5v and 3.5 it would go above 85c it was getting huge temp increases with just a little bit more vcore.......while the coolest one could run at 1.58-1.6v 3.5ghz and load was about 75c.........

the point is ya if you have a hot running chip it will get even hotter with a vcore mod

[DesertShooter]

the vDroop mod helps a LOT.

Without vdroop mod: (resistance= 75 Ohm)

1,55v in bios --> 1,49v idle --> 1,46v stressed

With vdroop mod: (resistance= 15 Ohm)

1,55v in bios --> 1,54v idle --> 1,54v stressed

[Babsy]

so do i need to vmod this board to get 3.6ghz with e6600?if so which board out there doesnt need modding at all to get decent clocks?

[K404]

you shouldnt have to mod the board, no. 3600 is only "really" "pushing" the CPU, the board can handle 400FSB fine

[K404]

the vDroop mod helps a LOT.

Without vdroop mod: (resistance= 75 Ohm)

1,55v in bios --> 1,49v idle --> 1,46v stressed

With vdroop mod: (resistance= 15 Ohm)

1,55v in bios --> 1,54v idle --> 1,54v stressed

Have I been really luck with my board? I dont feel theres any droop here, just a normal 0.01/0.02V fluc during idle/load switch points.

I also dont have the same extent of 4:5 RAM divider troubles as others :eek:

[aasmaukr]

Should I use a 20K or 100K VR on the vdroop mod? I only have two 50k VRs. Will a 20K do on the vcore, vMCH or vmem mod too?
I need one of the 50K VRs for my 7950GT vGPU mod, so I only got one 50K for the P5B Dlx mods.. I got two 10K, two 20K and two 100K.

[jVIDIA]

Anyone did the pencil vdroop mod ? Where to pencil ? It's like the p5wd2 premium ??!

You guys are really hot !

Mine 6400 28A is cooler :D, look :

CPU : 3540MHz ( 501fsb x 7 ) -> 66% de OC
Mem : 1002MHz ( 1:1, 501MHz, 4-4-4-10 )
vCore : 1,43v
vMem : 2,30v

( All other voltage settings @ minimum values )

Full temp : 50º/52º @ WC
Super PI 1MB : 16"

[C3]

Anybody noticed sudden reboots when vcore is set above 1,85V?
My P5B-DLX always reboots after entering Windows when I set vcore above 1,85V.
Is there an ovp mod?

[Nandro]

I guess no one wants to share any pencil mods.

[shimmishim]

still wondering about the resistance to set for droop mod.

i have a 50K VR in place set at 50K.

1.55 bios shows 1.52 in windows...

n/m

i just went into the bios... set it to 1.55... bios read 1.528...

adjusted until voltage went up... bios then read 1.536 and was stable... :)

[Spacemaster]

Eny mods for asus P5B-E plus:confused:

[d@rkn1ko]

same mods

[Spacemaster]

Is this 100%,you try that mate,eny pic.

[DDTUNG]

The mods are basically the same, except for the resistor values required.

As a general rule of thumb, measure the onboard resistance(with the PSU unplugged) between the solder points and use a VR rated at roughly 20X the measured value. You know the rest.

DDTUNG:cool:

[eva2000]

I guess no one wants to share any pencil mods.
Yeah wondering about pencil mod myself too :)

[Gam3Ra]

Yeah wondering about pencil mod myself too :)
Me too :confused:

[Millyons]

the vDroop mod helps a LOT.

Without vdroop mod: (resistance= 75 Ohm)

1,55v in bios --> 1,49v idle --> 1,46v stressed

With vdroop mod: (resistance= 15 Ohm)

1,55v in bios --> 1,54v idle --> 1,54v stressed


I assume pencil mod would just be like this......penciling the resistor to 15ish Ohms

[jVIDIA]

I did the pencil vDroop mod and the results @full load are :

before : 0.07 vdroop

now : 0,005 ~0.01 vdroop :D

[Millyons]

what is your finnal resistance

[jVIDIA]

didn't measured it :(

[Gam3Ra]

Boys, please give photos for the vdroop pencil mod :eek:

[Pyr0]

???
Post #5 of this thread...
http://www.xtremesystems.org/forums/showpost.php?p=1668115&postcount=5

pencil the small capacitor (top right) indicated by the vdroop mod

[icywater]

well i did the droop,vcore and mem mod. The drool and the vcore work very well
but for the mem mod. It seem to be stuck at 2.4volt (bios setting 2.45v) nothing changes. The contact of the soldier point is fine. even if i tune the pot to lower resistant, it still 2.4v :mad: .

[Inteleron]

Vmod? LOL how about a stable bios first.

[icywater]

problem fixed :), i can tune vdim to 2.7 volt now. a little bit scare of feeding over 2.5v, so l leave on 2.46v

[K404]

You too? LOL yea 2.5V+ makes me nervous :)

[smopoim86]

If i use a pencil on the vdroop mod, will the bios report near accurate voltages? or will it be off.

[newls1]

If i use a pencil on the vdroop mod, will the bios report near accurate voltages? or will it be off.
Im wondering the same thing? Also, I cant seem to understand post #5 on how to pencil this

[K404]

Droop mods will stop/limit the amount the voltages drops under load. The only accurate voltages are DMM voltages.

My DFI 939 BIOS told me my 12V rail was 5.xV for example , just ignore BIOS readings

[Elisha]

???
Post #5 of this thread...
http://www.xtremesystems.org/forums/showpost.php?p=1668115&postcount=5

pencil the small capacitor (top right) indicated by the vdroop mod


where in relations to to the whole board is that resistor located?
is it near the socket?
can someone take a pic of the full board of closer components?

[C3]

Accidently the cap where you solder the vdroop mod fell off.
Is it possible to use the board without the missing cap?
I just got a X6800 and am afraid to try it with this gem :(

[OnDborder]

where in relations to to the whole board is that resistor located?
is it near the socket?
can someone take a pic of the full board of closer components?
http://www.xtremesystems.org/forums/showpost.php?p=1741662&postcount=26

[OnDborder]

Yeah wondering about pencil mod myself too :)
Did you do it?
If so, what is the result?

[Dani]

- solved ;)

[ManagHead]

Where do you guys measure vcore?

I found it. And btw, I measured 622 ohms on the vdrop resistor - does that make sence?

[Dani]

From those black boxes, there are legs so from them you can measure Vcore.

http://img330.imageshack.us/img330/1954/p5bdlxsg9.jpg

[OnDborder]

Then use any ground point or the ones pointed out in this thread ?? http://www.xtremesystems.org/forums/showpost.php?p=1685321&postcount=3

[couppi]

I did the pencil vDroop mod and the results @full load are :

before : 0.07 vdroop

now : 0,005 ~0.01 vdroop :D
Hmmm... Do I just take a number 2 pencil and shade it lightly? Or should I rub the hell out of it?

[ManagHead]

I did the mod too.

Before (1,45V in bios):
1,387V orthos-> 1,373V
After:
1,412V orthos-> 1,411V

[couppi]

Alright, I decided to rub the hell out of that little thing with my pencil.

I'm getting no vdroop reported by asusprobe. Vcore stays at 1.51 all the time :cool:

[ManagHead]

Alright, I decided to rub the hell out of that little thing with my pencil.

I'm getting no vdroop reported by asusprobe. Vcore stays at 1.51 all the time :cool:
Nice, what have you set in bios?

[giovysax]

HI GUYS,
i have a question: safe range for vmch?
I measured vmch after mod with multimeter: 1,79volt real -> 1.65volt bios
how can i reach over 500 fsb?

sry for bad english

thx cya all

[K404]

welcome to XS :D Can you not hit 500FSB at that voltage? for much higher voltages, i`d suggest improving the cooling on the chipset :)

Kenny

[ManagHead]

welcome to XS :D Can you not hit 500FSB at that voltage? for much higher voltages, i`d suggest improving the cooling on the chipset :)

Kenny
Yea, my first tought too. I managed 505 with cold air, with normal air temp I can't get over ~495 with any vmch/vfsb.

[couppi]

Nice, what have you set in bios?

1.5375 or something like that. The mod sort of fixes the board's undervolting, but not that much.

[giovysax]

lol, magic forum :D
thx for fast answer :)
without vmod i get ~500....with mod vcpu, vdroop, vmch and vddr i get ~500 too :( ----> 505 black screen :( :(
i have liquid cooling on cpu, northbridge and vga ;)
can i reach 500+ increasing again vmch or i break my mobo?

Thx, thx, thx!!

E6600
Team Group Xtreem DDR2 800 3-3-3-8
P5B dlx

[jimmyz]

other voltages? other settings? you don't give much info , you might have something else you can tweak.

[K404]

without vmod i get ~500....with mod vcpu, vdroop, vmch and vddr i get ~500 too :( ----> 505 black screen :( :(
i have liquid cooling on cpu, northbridge and vga ;)
can i reach 500+ increasing again vmch or i break my mobo?


Thats a bit weird :confused: What BIOS you running? water on the chipset should definately get you past 505, tho from what i`ve read here, board performance ranges wildly from user to user?

[Chri$ch]

lol, magic forum :D
thx for fast answer :)
without vmod i get ~500....with mod vcpu, vdroop, vmch and vddr i get ~500 too :( ----> 505 black screen :( :(
i have liquid cooling on cpu, northbridge and vga ;)
can i reach 500+ increasing again vmch or i break my mobo?

Thx, thx, thx!!

E6600
Team Group Xtreem DDR2 800 3-3-3-8
P5B dlx
i think it is your cpu that limited

[giovysax]

Well....

1° config:
BIOS: 0804 ufficial
CPU: E6600@3,5GHz 1,55volt 500x7;
Vmch: 1,78volt (bios 1,65volt);
RAM: 1000MHZ 5-5-5-15 1:1 2.45Volt (bios 2.35volt)

If i set 500+ black screen :(

Actualy i use this config:
BIOS: 0804 ufficial
CPU: E6600@3,84GHz 1,55volt 480x8;
Vmch: 1,78volt (bios 1,65volt);
RAM: 960MHZ 4-4-4-10 1:1 2.4Volt (bios 2.3volt)

thx for help xD

cya all

[giovysax]

well,
after various test i inderstand that my limit in overclock is SoutBridge Vcore!!!!
If i set it at 1,8Volt i can reach 500MHz fsb stable with vmch=1,55V, vcore 1,50volt, vddr=2,35volt!! (orthos run for 7+ hours)v :woot:

If i set it at 1.7 is not stable for me.
With sb vcore 1,8volt i can boot at 510 but is not stable with orthos :(

any southbridge vmod??? :stick: :stick:

thx for help!!

(Merry Xmas and Happy New Year!!!! :D :D :D :D :D :D :D :D :D )

[ManagHead]

Interesting, I'll try this myself. Time to put watercooling on sb, and tec on nb? :D

I was able to pass 500FSB without cold air with southbridge 1,8V! Haven't tested anything else than Pi 1m. Nice find!

[OnDborder]

Alright, I decided to rub the hell out of that little thing with my pencil.

I'm getting no vdroop reported by asusprobe. Vcore stays at 1.51 all the time :cool:
Thanks for the info..

[OnDborder]

Just checked mine. Set at 1.525(in the bios) reads 1.48 with programs. Load it drops a little, to 1.464.

Do I need the vdroop mod?

[OnDborder]

Did the pencil trick. It took more than a couple of times for it to stick.
Before I'd set 1.50 in the bios, I'd get 1.456.
Now, 1.5 I get 1.48.
Before 1.480 idle, 1.464 load.
Now, 1.480 idle, 1.472 load.
Not that much difference.
Maybe tomorrow I'll crack open the conductive ink.

[Nosfer@tu]

Did the pencil trick. It took more than a couple of times for it to stick.
Before I'd set 1.50 in the bios, I'd get 1.456.
Now, 1.5 I get 1.48.
Before 1.480 idle, 1.464 load.
Now, 1.480 idle, 1.472 load.
Not that much difference.
Maybe tomorrow I'll crack open the conductive ink.

what mods can you use conductive inc for?

[loc.o]

Have to try that pencil mod. SB voltage does help for a few more FSB mhz. A good cpu as wel :D Me first one did 505 orthos, 510 dual 32M but bsod at 512 or higher... Second one does 550 stable on air and max about 570 1M with mach. Same board/mem/bios/settings.

[jVIDIA]

what mods can you use conductive inc for?

I think no mod can be done in the P5B with conductive ink.

[OnDborder]

Instead of using the pencil, thinking about using the ink instead, on this vdroop. It's more reliable.

[jVIDIA]

It's not the same thing ! be carefull !!! :nono:

The pencil reduces de resistance a little bit. The conductive ink reduces the resistance to 0 ! If you do that it could fry your CPU :D

[OnDborder]

Ok, I'm just a little confused. Help me out, please.
When using pencil lead aren't you connecting the 2 posts, by passing the resistor? So you can "control" the amount of resistance with the amount of pencil lead applied? A little lead, little resistance, rubbing the heck out of it, alot of resistance?
I thought either the current bypassed or it doesn't.

Maybe that explains the different readings. Like I stated, it took a few times to get a stable vcore. One reading would be 1.509 then fluctuate to1.49. Another try it read 1.3 when set to 1.5, maybe too much pencil?
Now it's pretty much stable at 1.48/set at 1.5.
I guess I got lucky and used the right amount of lead.:)

[giovysax]

Have to try that pencil mod. SB voltage does help for a few more FSB mhz. A good cpu as wel :D Me first one did 505 orthos, 510 dual 32M but bsod at 512 or higher... Second one does 550 stable on air and max about 570 1M with mach. Same board/mem/bios/settings.

i don't boot with fsb 510+ :(

help me? :stick:

cya all

[Eldonko]

You should just use a trimpot, its alot safer. :)

[OnDborder]

Lol, you haven't seen me solder.
I'll probably just leave it. It's nice and stable. No fluctations.

[ManagHead]

Anyone know if there's possible to use 10kvr for the vMCH mod?

[newls1]

Why am I still not understanding how to do this pencil mod? Am I retarded? I cant see where to do it. Can someone please help me.

[OnDborder]

Here's a close-up. http://www.xtremesystems.org/forums/showpost.php?p=1668115&postcount=5
Here's another, further away. http://www.xtremesystems.org/forums/showpost.php?p=1741662&postcount=26
You "pencil" in between the 2 ends of that tiny resistor. The lead conducts the current past the resistor.

[Quest For Speed]

Just completed the Vmods and they all work great. I found that roughly 20k will raise vcore by .6v so the mod can be done with a 20k vr. Just be sure to set your vcore in bios down by at least .5~.6 below where you usually run at.

[Quest For Speed]

Anyone know if there's possible to use 10kvr for the vMCH mod?

Yes you can. It will raise the voltage roughly .5~.6 so 1.45 bios at 10k will give you roughly 1.5

[ManagHead]

Yes you can. It will raise the voltage roughly .5~.6 so 1.45 bios at 10k will give you roughly 1.5
Do you mean it will raise 0.05? If I have 1,45V in Bios, and it raises 0.5V, it will become 1,95V?

[Quest For Speed]

Do you mean it will raise 0.05? If I have 1,45V in Bios, and it raises 0.5V, it will become 1,95V?

Sorry, I meant .05. I currently have my VR set at 10k and bios set to 1.55 and my multimeter is reading 1.606.

[prosk8]

same as p5wdh and ws pro

???:confused: if p5b de=p5b dh de=p5b=p5wdh=all ws pro
hmm i can do the all mods of all mobos in p5w64 ws pro:cool: or some mobo else?


sorry for the english:(

[Spacemaster]

Is there eny program to see mem voltages after Vmem mod, or I must do it vith my bear hands and votmeter

[jimmyz]

asus ai suite it is on the cd but there is a new one (less than a week old) on the website.

[giovysax]

any southbridge vcore mod????

My limit is sb vcore...

Help me plz!!!

[zhangmaster12]

soooo anybody wanna do the vcore and vdroop for me?

[T07N]

i can do it for a price. pm me.

[K404]

Zhangmaster..where are you based?

T07N..I`ll do your avatar for free :p:

[karateo]

Here's a close-up. http://www.xtremesystems.org/forums/showpost.php?p=1668115&postcount=5
Here's another, further away. http://www.xtremesystems.org/forums/showpost.php?p=1741662&postcount=26
You "pencil" in between the 2 ends of that tiny resistor. The lead conducts the current past the resistor.

does this pencil mod voids the warranty?
i mean if something happens i can erase the pencil so nobody can see it! :woot:

after all vdroop makes the motherboard more stable

[jVIDIA]

does this pencil mod voids the warranty?
i mean if something happens i can erase the pencil so nobody can see it! :woot:

after all vdroop makes the motherboard more stable


You can erase it easily with a pencil rubber ;)

[karateo]

thanks :D

[|-jokker-|]

So for 1000% shure the mods are the same for the p5b-e ??

[jVIDIA]

So for 1000% shure the mods are the same for the p5b-e ??

I'm not sure my friend ;)
But it must be. I think.

[zhangmaster12]

what type of pencil do i use for hicookie's vdroop mod on the 1st page?

[ManagHead]

Anyone has the vSB mod?

zhangmaster12: something with low resistance.

[sniperxxx90]

How many Ohms would be 100% neutralizing the vDroop, but not anything extra?

[Revage]

does asus p5b-e plus have same mods like p5b deluxe ?

[zhangmaster12]

so a number two pencil will work?

and this mod workd on all p5b deluxes right?

i gotta be causous, dont wanna waste 150$

screw it, im gonna solder it. can i use this VR?
http://www.alliedelec.com/Search/SearchResults.asp?sid=45B6A1807777617F&Ntt=50k+ohm&N=0&No=40&Ns=RetailPrice%7C0&Ntk=Primary

why does it have three leg things?

[giraffen]

I will make a vdroop/vcore mods, but i have a question:
Do i place the 50K resistor on 50K and then turn it down, or how do i start?

/Jesper

[Revv23]

yes always start with max resistance when vmodding.

[Revv23]

does asus p5b-e plus have same mods like p5b deluxe ?

I am 99% sure it does, if you want post some pictures of the mod area and i can confirm it. But the board has the same PCB and layout, so i would imagine its not any different.

[giraffen]

Thx

/Jesper

[pumbertot]

fully clockwise is full resistance right?dont have multimeter atm hence the question. was going to do vcore,vmch and vdroop as I can measure them all in BIOS/windows.

[funkflix]

Does show u teh tool from asus 1,76V Vmch if the setting in bios is 1,65V? If not u should better get a DMM.

Did all Vmods now and did the final adjustment:

Vcore = 1,72V

Vdimm = 2,72V

Vmch = 1,90V

Thats fine for my cooling imho. :)

[pumbertot]

Does show u teh tool from asus 1,76V Vmch if the setting in bios is 1,65V? If not u should better get a DMM.

Did all Vmods now and did the final adjustment:

Vcore = 1,72V

Vdimm = 2,72V

Vmch = 1,90V

Thats fine for my cooling imho. :)


yeah couldnt find it, getting one today. didnt want to risk it without.
1.72V with watercooling? you are a brave man. I might run that though my kentsfield when I have a S775 kit for the MachR507a.

[funkflix]

Already benched with 1,66V and reached 4320MHZ for 1M.

But idle temps of the cpu was 11/6°C. ;)

[pumbertot]

11/6C? have you got a water chiller there?

just a quick Q is it safe to ground all my vmods to the same ground poit?(was going to screw them to inside of case all on one screw.

[funkflix]

11/6C? have you got a water chiller there?

just a quick Q is it safe to ground all my vmods to the same ground poit?(was going to screw them to inside of case all on one screw.

1. My CPU is a really cool one and it is lapped, plus fluid metal thermal paste and i was outside. Watertemp was about 4°C. ;)

2. Yes, it should work.

[pumbertot]

ive finished them all except vdroop. either my skills or equipment but whenever I got contact with the cap I would then short the other wire to the first by mistake. it seems hard to get hands on flux here in Oz so solder isnt flowing too great. I suppose a magnifying glass would help and good light as was damned hard to see such small components.

can some one please measure the resistance from the vcore solder point to ground through the pot set to full resistance? im only reading 1000ohms(its definitely a 50k pot and I checked before soldering it in) set to full. I havent powered the pc on yet as im afraid it will blow the cpu. maybe ive done somthing wrong but I dont see what as it looks soldered to the correct capacitor.

[pumbertot]

or funkflix can you measure resistance across vmch with vr full. also not getting anywhere near 50k. :(

[celemine1Gig]

Someone please tell pumbertot the original resistance between the VCore-mod points, either on an unmodded board, or just with the 50K turned up to it's full resistance. Don't know why he's asking for vmch. :shrug: He had PMed me.

[funkflix]

Already told him my resitance on Vcore and it was 963 ohm, but i increased Vcore by 0.06V, so his ~ 1000 ohm should be fine.

[pumbertot]

yep thanks to both of you for your help. both mods running fine. also vdroop pencil has reduced it from .03V under load to .01V. just ready in time for my kentsfield thats on the way. :D

[funkflix]

yep thanks to both of you for your help. both mods running fine. also vdroop pencil has reduced it from .03V under load to .01V. just ready in time for my kentsfield thats on the way. :D

Gratz and have fun with it! :toast:

[celemine1Gig]

Nice to hear that it worked fine. Didn't expect anything else. :)

[karateo]

i am worrying about the vdroop pencil mod.
if stability is the only result of this mod why motherboard manufacturers do not fix it from the beginning?

i can't understand why they just don't use a lower resistance?

[celemine1Gig]

i am worrying about the vdroop pencil mod.
if stability is the only result of this mod why motherboard manufacturers do not fix it from the beginning?

i can't understand why they just don't use a lower resistance?


It safes them money, that's why. ;) Google around for "droop voltage" or vdroop and you'll find out what I mean. With implemented droop function, the manufacturers can use less parts or parts of lower quality, thus they safe money.

[karateo]

It safes them money, that's why. ;) Google around for "droop voltage" or vdroop and you'll find out what I mean. With implemented droop function, the manufacturers can use less parts or parts of lower quality, thus they safe money.


well, if we can minimise the vdroop problem by reducing the resistance of a resistance (:slap: ) this means that they could just use a lower resistance from the beginning. And i think that they wouldn't save even 1$/motherboard.

The only logical reason that comes to my mind is that it stresses the motherboard more. (don't know how technically)

[funkflix]

A few times i saw something like - "intel want that Vdrop from motherboard manufactures" over the forums, but don't know if this is true... ;)

[zhangmaster12]

chicken out of solder.

im using my p5b in a tower case. pencil dust wont fal or anything causing short outs willl it?

[celemine1Gig]

well, if we can minimise the vdroop problem by reducing the resistance of a resistance (:slap: ) this means that they could just use a lower resistance from the beginning. And i think that they wouldn't save even 1$/motherboard.

The only logical reason that comes to my mind is that it stresses the motherboard more. (don't know how technically)

Sorry, but you don't get it. ;) It's not about that one resistor. Anyways, search on google, as I said, then you should discover what I'm talking about.
It's all about decoupling capacitance. The VCore caps cost money and not little in comparison to other parts. For example have a look at how expensive the often used Sanyo OSCON caps are (4V 560µF is one example). Safeing one or two on each board is major cash! :fact:

[pumbertot]

chicken out of solder.

im using my p5b in a tower case. pencil dust wont fal or anything causing short outs willl it?

cover any pencil mod with some sellotape to stop it wearing off. ;)

[karateo]

Sorry, but you don't get it. ;) It's not about that one resistor. Anyways, search on google, as I said, then you should discover what I'm talking about.
It's all about decoupling capacitance. The VCore caps cost money and not little in comparison to other parts. For example have a look at how expensive the often used Sanyo OSCON caps are (4V 560µF is one example). Safeing one or two on each board is major cash! :fact:


I googled decoupling capacitance and i understood what you said.
the thing is that WE can minimise the vdroop effect just by decreasing one resistance. Couldn't they do just this? I am not saying to use completely different parts to diminish vdroop but to at least minimise it as we do.

do you still think that I don't get it?

[GMX]

I googled decoupling capacitance and i understood what you said.
the thing is that WE can minimise the vdroop effect just by decreasing one resistance. Couldn't they do just this? I am not saying to use completely different parts to diminish vdroop but to at least minimise it as we do.

do you still think that I don't get it?

Its been there for years. Nothing has been done about it, except by us. I doubt the situation/story will change.

[Millyons]

Its been there for years. Nothing has been done about it, except by us. I doubt the situation/story will change.

ya one thing i dont understand is all of a sudden on the forum everyone is crying about the vdroop, and mostly bashing Asus for it....for years since i have been into computers (before celly 300a days when OCing took off) all mobos have had a vdroop ..... only way i can explain this is the ppl that cry the most and bash Asus is that they probably started OCing with the Ultra-D that really had a very slight drop or none, and now migrated to c2d and dont even know that vdroops are normal on mobos....and lol its not a Asus "feature" like some are calling it, it has always been there on all mobos...well except the ultra-d but that is why it really was an exstraodinary peice of hardware.......

[celemine1Gig]

I googled decoupling capacitance and i understood what you said.
the thing is that WE can minimise the vdroop effect just by decreasing one resistance. Couldn't they do just this? I am not saying to use completely different parts to diminish vdroop but to at least minimise it as we do.

do you still think that I don't get it?

You won't like to hear it, but yes.
What you still don't seem to understand is that there are engineering rules. Changing the droop function has more effect on the vcore regulation than just the one different resistance. This resistance controls the droop function, it is not the droop function.
As I already said, they want to safe money, as they want to make money at all. I don't think that the manufacturers earn a fortune designing motherboards for enthusiasts. We are not the main source of capital in this industry. When you wanted a board that was perfect (speaking about regulation and parts), I guess you'd have to pay more than for example the latest Asus boards and still the board wouldn't sell good, as most people who buy these boards (even the so called enthusiasts) don't have a clue about vdroop etc. That's to say colored LEDs and mechanical and thermal features often are more eye-catching and buying reason.

So why honestly would any manufacturer in his right mind listen to what you say? Nothing against you, but think about it.

[pumbertot]

You won't like to hear it, but yes.
What you still don't seem to understand is that there are engineering rules. Changing the droop function has more effect on the vcore regulation than just the one different resistance. This resistance controls the droop function, it is not the droop function.
As I already said, they want to safe money, as they want to make money at all. I don't think that the manufacturers earn a fortune designing motherboards for enthusiasts. We are not the main source of capital in this industry. When you wanted a board that was perfect (speaking about regulation and parts), I guess you'd have to pay more than for example the latest Asus boards and still the board wouldn't sell good, as most people who buy these boards (even the so called enthusiasts) don't have a clue about vdroop etc. That's to say colored LEDs and mechanical and thermal features often are more eye-catching and buying reason.

So why honestly would any manufacturer in his right mind listen to what you say? Nothing against you, but think about it.

of course but hey wasnt the DFI venus designed designed to be like the expert but made purely for o/c. they could release P5B-Deluxe Extreme Edition with 0.001Vdrop, 2C Vcore, 1.9VMCH etc.lol just a thought.

lol@me big update. yep mobo survived my not so great mod skills and then I killed here by trying to flash to older BIOs(why do you ask, because always looking for a better overclock). tried 24 BIOS reset(battery out etc etc) but no good no boot.
so have to RMA. prob is getting the mods off with crap iron I have. when I removed vmch wire the solder flowed between the 2 legs on the IC and no matter how I try with braid and iron it wont budge.2 legs are shorted.bah!

any tips on how to get it off?

[celemine1Gig]

of course but hey wasnt the DFI venus designed designed to be like the expert but made purely for o/c. they could release P5B-Deluxe Extreme Edition with 0.001Vdrop, 2C Vcore, 1.9VMCH etc.lol just a thought.

lol@me big update. yep mobo survived my not so great mod skills and then I killed here by trying to flash to older BIOs(why do you ask, because always looking for a better overclock). tried 24 BIOS reset(battery out etc etc) but no good no boot.
so have to RMA. prob is getting the mods off with crap iron I have. when I removed vmch wire the solder flowed between the 2 legs on the IC and no matter how I try with braid and iron it wont budge.2 legs are shorted.bah!

any tips on how to get it off?

You don't need to RMA the whole board when only the BIOS is the problem. Ask someone from the forums to rewrite the EEPROM for you. I bet someone near you (I mean in your country :) ) will be able and willing to help you. It's no big deal and sure cheaper and faster than RMA.

And concerning the DFI Venus:
a) It was, as I said, very very expensive.
b) All the difference was, AFAIK, the all solid caps and another BIOS. If it was a bit more complicated, I apologize. :)
c) The Asus P5B-E Plus ist sort of Asus's Venus. Yet still there's the droop "problem" you all moan about and I doubt that Asus will ever do anything about it. :D Reasons stated above.

[funkflix]

Try one of that things:

http://666kb.com/i/algin35dcbehocjvc.jpg

http://666kb.com/i/algincjbumj5jvw60.jpg

And try to boot with the Asus-CD was in the package of the board, maybe it will flash the old original bios. Or try a disk with flashprogram + biosfile. Sometimes the boards will boot this way!

@celemine1Gig

EEPROM is not in a socket, it is soldered to the board.

[pumbertot]

Try one of that things:

http://666kb.com/i/algin35dcbehocjvc.jpg

http://666kb.com/i/algincjbumj5jvw60.jpg

And try to boot with the Asus-CD was in the package of the board, maybe it will flash the old original bios. Or try a disk with flashprogram + biosfile. Sometimes the boards will boot this way!

@celemine1Gig

EEPROM is not in a socket, it is soldered to the board.

I think I will try that suction thing, already have wick/braid and it wont budge.lol if I just RMAed as is they would be like wtf is this?:D

[funkflix]

Anyhow, are u sure that ur P5B bios is damaged? How the board affects if u power the pc on? Just black screen, but ur screen getting a signal? Or beeps?

Three days ago i flashed 1004 bios, and i needed about 2 hours to get my P5B back to life.. ;) Thought it was dead too.

[celemine1Gig]

...

@celemine1Gig

EEPROM is not in a socket, it is soldered to the board.

WOW! :eek: All I can say is damn Asus. Intel has no socketed BIOS on BadAxe and many other boards, but they got good recovery functions. Is there none on the Asus?

[funkflix]

WOW! :eek: All I can say is damn Asus. Intel has no socketed BIOS on BadAxe and many other boards, but they got good recovery functions. Is there none on the Asus?

Some guy on hwluxx wrote, that he get back his P5B to life, when he insert teh Asus-CD from the OVP. Then the board flashed back the 605 bios to the EEPROM and it worked again. Know that function from my old lanparty nf3, it flashed new bios from disk, after i had a corrupted flash.

I would give that all a try before i make the RMA. :)

[celemine1Gig]

Ahh, looks like they integrated ATA support to the bootblock. Sounds like a chance.

[pumbertot]

Anyhow, are u sure that ur P5B bios is damaged? How the board affects if u power the pc on? Just black screen, but ur screen getting a signal? Or beeps?

Three days ago i flashed 1004 bios, and i needed about 2 hours to get my P5B back to life.. ;) Thought it was dead too.

I tried battery out for 24 hours. will try boot with cd like that other guy did but I need to remove this solder short first as cant power it on,lol.

yeah it was black screen.no ginal, no beeps.

[Gam3Ra]

I need pencil vmod for the memory, please :(

[eva2000]

Did you do it?
If so, what is the result?
Slowly finding the balls to be a bit more adventurous and decided to do the Asus P5B Deluxe vdroop pencil mod :D I used a 2B pencil and about 4 strokes across resistor pictured with yellow line through it below:

http://fileshosts.com/intel/Asus/P5B_Deluxe/results/G4Storm/X6800_1/ocz/titaniumlaphavx2/pc8000/0804/11x/533/266-266_44412_6_42-def_1.325-1.2-1.25-2.1/pencilvdroop/vcore_droop_area_pencil_mod.jpg

------------------------------------------------------------------------------------
Before vdroop pencil mod
- resistance was DMM measured at 80 ohm
- 1.325v bios set vcore = 1.280-1.288v bios monitored, 1.29v idle/1.27v load Asus PC Probe2 reported.

------------------------------------------------------------------------------------
After vdroop pencil mod
- resistance was DMM measured at 37.4 ohm
- 1.325v bios set vcore = 1.296v steady bios monitored, 1.30v idle/1.30v load Asus PC Probe2 reported.

I'm happy with that for now a reduction in vdroop by ~0.03v Asus PC Probe2 reported under load. Not going to be too greedy :D

------------------------------------------------------------------------------------
Before vdroop pencil mod @1.325v bios set
CPU Prime95 v25.1v small ffts load:
http://fileshosts.com/intel/Asus/P5B_Deluxe/results/G4Storm/X6800_1/ocz/titaniumlaphavx2/pc8000/0804/11x/533/266-266_44412_6_42-def_1.325-1.2-1.25-2.1/prime95_load.png

CPU Prime95 v25.1v small ffts post load idle:
http://fileshosts.com/intel/Asus/P5B_Deluxe/results/G4Storm/X6800_1/ocz/titaniumlaphavx2/pc8000/0804/11x/533/266-266_44412_6_42-def_1.325-1.2-1.25-2.1/prime95_postload_idle.png

------------------------------------------------------------------------------------
After vdroop pencil mod @1.325v bios set
CPU Prime95 v25.1v small ffts load:
http://fileshosts.com/intel/Asus/P5B_Deluxe/results/G4Storm/X6800_1/ocz/titaniumlaphavx2/pc8000/0804/11x/533/266-266_44412_6_42-def_1.325-1.2-1.25-2.1/pencilvdroop/prime95_load.png

CPU Prime95 v25.1v small ffts post load idle:
http://fileshosts.com/intel/Asus/P5B_Deluxe/results/G4Storm/X6800_1/ocz/titaniumlaphavx2/pc8000/0804/11x/533/266-266_44412_6_42-def_1.325-1.2-1.25-2.1/pencilvdroop/prime95_postload_idle.png

------------------------------------------------------------------------------------

[celemine1Gig]

@eva2000:
Nicely done! Just two things:

1.) Didn't you measure Vcore with a DMM? You wrote that you just measured the resistance before and after the mod, but no word about measuring vcore while testing. I wouldn't really trust the software readings too much and I think you know that, too.

2.)You do know that droop is a function of the current drawn by the CPU, do you? Honestly, I doubt that 2.933GHz at ~1.3V is your normal overclock, thus your droop-mod results won't help you much. If you want to minimize vdroop, then you have to do it again for each new operating point of the circuit. That's to say when you raise your vcore now and overclock some more, vdroop will occur again, although you did the mod. The reason is the higher current draw. If you are clocking at very high vcores for example, I'd always advise you to do the mod adjustable (with a trimmer), as it could be that you adjust vdroop to a minimum at high vcore, but then get increased idle volts at lower vcore settings, as a result.

Just a little reminder.

[eva2000]

Yeah to be honest i totally forgot to DMM measure the vcore (didn't even bother looking for vcore measure pt in this thread) - was so preoccupied with the resistance measurement hehe

Yeah there's a bit more droop at higher vcore i.e. i get 0.008v droop under load at 3807mhz at 1.5875v bios (1.56v idle/1.552v load) :)

Idle
http://fileshosts.com/intel/Asus/P5B_Deluxe/results/G4Storm/X6800_1/ocz/titaniumlaphavx2/pc8000/0804/9x/533/423-423_44412_6_42-def_1.5875-1.3-1.55-2.1/prime95_idle.png

Load
http://fileshosts.com/intel/Asus/P5B_Deluxe/results/G4Storm/X6800_1/ocz/titaniumlaphavx2/pc8000/0804/9x/533/423-423_44412_6_42-def_1.5875-1.3-1.55-2.1/prime95_load.png


@3600Mhz use to take 1.45v (1.38v Asus PC Probe2 loaded), now with vdroop pencil mod 1.4125v (1.38v Asus PC Probe2 loaded) :)

http://fileshosts.com/intel/Asus/P5B_Deluxe/results/G4Storm/X6800_1/ocz/titaniumlaphavx2/pc8000/0804/9x/533/400-400_44412_6_42-def_1.4125-1.3-1.55-2.1/prime95_load.png

Also my P5B Deluxe is setup in a part of the room where it's hard to get down on my knees to hold a DMM steady for measuring vcore under load hehe

As i said, I'm not going to be too greedy here... I'm happy with the improvement so far... :)

[K404]

From what I understand, Droop is built into Intels spec for CPUs, but AMD dont worry about things like that. The entire power circuit set, although obviously having similar raw components and basic purpose, is totally different.

To compare the Ultra-D (and NF4 LP series) to the C2D boards is crazy.

Quick question: The droop pot mod is applied directly across a resistor...is it safe to say this mod works off voltage divider ruling, not tricking the sense pin of an IC?

[Millyons]

eva...did u try a quad yet with the vdroop....you will probably have to adjust it since with quads there is even bigger vdroop

[4Qman]

eva2000 Superb mate. I was ready to strip my entire rig just to do this mod. No need now i seen your results mate

:toast:

[eva2000]

thanks guys..

haven't tried Q6600 kents yet but it did 3600mhz at 1.45v bios set vcore before vdroop so can only be better now with penciled vdroop as is anyway :)

final outcome 4hrs solid @3807mhz at 1.5875v bios (1.56v idle/1.552v load) :)

Load
http://fileshosts.com/intel/Asus/P5B_Deluxe/results/G4Storm/X6800_1/ocz/titaniumlaphavx2/pc8000/0804/9x/533/423-423_44412_6_42-def_1.5875-1.3-1.55-2.1/prime95_load_4hr_mark.png

Post Load Idle
http://fileshosts.com/intel/Asus/P5B_Deluxe/results/G4Storm/X6800_1/ocz/titaniumlaphavx2/pc8000/0804/9x/533/423-423_44412_6_42-def_1.5875-1.3-1.55-2.1/prime95_4hrs01min_idle.png

[eva2000]

@eva2000:
Nicely done! Just two things:

1.) Didn't you measure Vcore with a DMM? You wrote that you just measured the resistance before and after the mod, but no word about measuring vcore while testing. I wouldn't really trust the software readings too much and I think you know that, too.

2.)You do know that droop is a function of the current drawn by the CPU, do you? Honestly, I doubt that 2.933GHz at ~1.3V is your normal overclock, thus your droop-mod results won't help you much. If you want to minimize vdroop, then you have to do it again for each new operating point of the circuit. That's to say when you raise your vcore now and overclock some more, vdroop will occur again, although you did the mod. The reason is the higher current draw. If you are clocking at very high vcores for example, I'd always advise you to do the mod adjustable (with a trimmer), as it could be that you adjust vdroop to a minimum at high vcore, but then get increased idle volts at lower vcore settings, as a result.

Just a little reminder.

Guess you were spot on... At higher vcore above 1.6125v the initial pencil modded of drooping resistor from 80ohm to 37ohm resistance wasn't enough to prevent further vdroop. So whipped out the 2B pencil and dropped resistance down to 14.5 ohm. And now it's all good at least from bios perspective :)

Final outcome

http://i4memory.com/reviewimages/motherboards/asus/P5B_Deluxe/pencilmod/vdroop_pencilmod_table.jpg

Improvements after vdroop pencil mod are amazing! Before the mod, 10x 400FSB = 4000Mhz would need 1.7v max vcore set in bios for 1.62v idle and 1.59v load. I could pass single Super Pi 32M but Systool dual 32M Pi would reboot at 50-80% mark - Systool dual 32M Pi is a good indicator of whether a setting is capable of dual Super Pi 32M.. Now with vdroop pencil mod, with vcore set to 1.65v in bios I get 1.616-1.624v idle and 1.624v load and now capable of Systool dual 32M Pi :D

Idle
http://fileshosts.com/intel/Asus/P5B_Deluxe/results/G4Storm/X6800_1/ocz/titaniumlaphavx2/pc8000/0804/10x/667/400-500_4444_2_25-3-10810_1.65-1.3-1.65-2.3/cpuz_idle.png

Systool dual 32M Pi load
http://fileshosts.com/intel/Asus/P5B_Deluxe/results/G4Storm/X6800_1/ocz/titaniumlaphavx2/pc8000/0804/10x/667/400-500_4444_2_25-3-10810_1.65-1.3-1.65-2.3/systool_dual32m.png

http://fileshosts.com/intel/Asus/P5B_Deluxe/results/G4Storm/X6800_1/ocz/titaniumlaphavx2/pc8000/0804/10x/667/400-500_4444_2_25-3-10810_1.65-1.3-1.65-2.3/systool_dual32m_finished.png

[Millyons]

thanks guys..

haven't tried Q6600 kents yet but it did 3600mhz at 1.45v bios set vcore before vdroop so can only be better now with penciled vdroop as is anyway :)

[/IMG]

OT but man thats a nice quad :slobber:

[pumbertot]

eva how are your temps so low with a storm? whats your full loop consist of?I thought its roughly same as mine but you load 10c less than me at same volts. wait have you got airconditoning at home and have a low ambient?

[Slay0r]

Eva,

your excellent results inspired me to do the pencil mod. :toast:

load
http://img255.imageshack.us/img255/6942/prime32404hrrunningev7.jpg (http://imageshack.us)
idle
http://img255.imageshack.us/img255/618/prime32404hridlenj9.jpg (http://imageshack.us)

mobo used to vdroop by 0.03/0.05v from idle to load at the same clocks and voltage set in bios (1.5000v) not to mention that at idle it sat @ 1.450 ish :slapass:

very quick and worthy mod imho :fact:

[eva2000]

eva how are your temps so low with a storm? whats your full loop consist of?I thought its roughly same as mine but you load 10c less than me at same volts. wait have you got airconditoning at home and have a low ambient?
Yes i have 1HP portable air con but still room temp hovers between 24-28C on cool day and 28-37C on hot day with air con on

loop = Swiftech G4 Storm/Thermochill 120.3/MCP650 + Kayl 100W Custom PSU with T-line

The reason - it's the cpu, this X6800 i have runs 15-20C cooler than any core2 cpu i have used at the same volts! all my other E6600/E6700 run 3600mhz at 1.35-1.4v in same room at 60-68C load versus X6800 @3600mhz at 1.4v at 42-48C load!

it could be due to good IHS - notice the corners are lower than the middle!

http://i4memory.com/reviewimages/cpus/X6800/L627A872/photos/X6800_arrived_06.JPG

Eva,

your excellent results inspired me to do the pencil mod. :toast:

mobo used to vdroop by 0.03/0.05v from idle to load at the same clocks and voltage set in bios (1.5000v) not to mention that at idle it sat @ 1.450 ish :slapass:

very quick and worthy mod imho :fact:
congrats :)

[pumbertot]

Yes i have 1HP portable air con but still room temp hovers between 24-28C on cool day and 28-37C on hot day with air con on

loop = Swiftech G4 Storm/Thermochill 120.3/MCP650 + Kayl 100W Custom PSU with T-line

The reason - it's the cpu, this X6800 i have runs 15-20C cooler than any core2 cpu i have used at the same volts! all my other E6600/E6700 run 3600mhz at 1.35-1.4v in same room at 60-68C load versus X6800 @3600mhz at 1.4v at 42-48C load!

it could be due to good IHS - notice the corners are lower than the middle!



yeah can see that,hmmm think i will lap the qx6700 might drop temps a bit.
yeah similar setup here with storm, 120.3PA and DDC1(petra top-ek barbs) but no air con. the x6800(sold now) loaded about the same as your other chips.

how hot does your Q6600 get @ 3.6GHz(1.4-1.42V)?

[eva2000]

Q6600 @3600Mhz at 1.45v load done before vdroop mod = prime95 small ffts 4+ hrs loaded at 70/65C for the 2 dies

http://fileshosts.com/intel/Asus/P5B_Deluxe/results/G4Storm/Q6600_Kenstfield/gskill/6400phu2/17182221/804/9x/533/400-400-44412_6-42_def_1.575-1.4-1.55-2.10/prime95_load.png

[pumbertot]

yeah eva get ready for a serious vdroop. I got the resistance to 10k and still get .03V vdroop with kentsfield compared to .01V with X6800.

[funkflix]

yeah eva get ready for a serious vdroop. I got the resistance to 10k and still get .03V vdroop with kentsfield compared to .01V with X6800.

By the way, what happend to ur board now? :)

[pumbertot]

By the way, what happend to ur board now? :)

bought a new one. cleaned the other one up and sent off for RMA. fingers crossed they dont take stock NB heatsink off and see I replaced the TIM with ceramique.:eek:

[Revage]

Can a pencil vCore mod be done by penciling where hicookie soldered a 50k VR?

[eva2000]

yeah eva get ready for a serious vdroop. I got the resistance to 10k and still get .03V vdroop with kentsfield compared to .01V with X6800.
Swapped in my Q6600 B3 on P5B Deluxe with same vdroop pencil mod at 14.5k ohm.

Before vdroop pencil mod = 3600Mhz at 1.575v bios = 1.4480v load

After vdroop pencil mod = 3600Mhz at 1.45v bios = 1.432v idle and 1.440v load! :D

Using 1KW OCZ ProXStream psu.

I'm happy for now :D

[Millyons]

ya with 14.5k i get a 0.01 raise at load on a e6600 / x6800 :) lol the way it should always be, wonder what even lover resistance would do :) and what do you guys think how much harder is it on the mosfets and caps with the vdroop mod, could there be any issues with that 24/7....not my first vdroop mod just that these caps are already burning under load and i cant do anything to help cause of the Infinity, you could say my first vdroop with a tower cooler

[zhangmaster12]

i got some pictures of my pencil mod.

http://i129.photobucket.com/albums/p225/zhangmaster12/IMG_0604.jpg

[zhangmaster12]

although this mod helped eliminate dvroop a bit, it did not help the fact that when i enter 1.67 something vcore, asus probe only detects it as 1.6. why is this hapening and how do i fix it?

[pumbertot]

you need to do vcore voltmod to get it higher im afraid.

[eva2000]

although this mod helped eliminate dvroop a bit, it did not help the fact that when i enter 1.67 something vcore, asus probe only detects it as 1.6. why is this hapening and how do i fix it?
lower resistance might be needed

[giraffen]

Hey.
I have made the Vdroop mods...Succes:banana:
But i have a problem: I will make the Vcore mods, i have try´t one time before without succes :slobber: and I think the soldered point is distroy so i can not solder it.
The question is:
Is there another soldered point where i can solder it? The ground is okay.

/Jesper

[giraffen]

Here is some results with Vdroop mods;
SuperPi 9*520
peecee.dk/?id=30925
Aquamark 9*500
peecee.dk/?id=30926
I don´t think i can get higher without Vcore mods.

/Jesper

[OMEGA3]

P5B Deluxe, Vfsb mod is here.
For your information.

http://www.xtremesystems.org/forums/showpost.php?p=2074340&postcount=3595

[funkflix]

P5B Deluxe, Vfsb mod is here.
For your information.

http://www.xtremesystems.org/forums/showpost.php?p=2074340&postcount=3595

So no FSB improvement, if the CPU is limiting? :confused:

Thanks! :toast:

[OMEGA3]

So no FSB improvement, if the CPU is limiting? :confused:

Thanks! :toast:


But not sure...
I think that necessary to verify at about all conditions.

However, it seems to be certain that it changes the FSB limit with each CPU.

[alpha0ne]

Sorry if this has already been answered but I just cant seem to find it ATM

Can someone please tell me what to set the VR's to (is it no resistance at all) before turning on the board for the first time after soldering all the vmods ????


Thanks

[funkflix]

Max. resistance of the VRs.

[Nordling]

Vcore mod P5B-Del worked on Commando? Need ~2,2V

[graysky]

Before vdroop pencil mod = 3600Mhz at 1.575v bios = 1.4480v load

After vdroop pencil mod = 3600Mhz at 1.45v bios = 1.432v idle and 1.440v load!

You got a reference/guide to doing the pencil mod on the P5B-Del?

[davexl]

Holy :banana::banana::banana::banana: - Did the pencil mod on my P5B Deluxe with a Q6600 @ 3510Mhz

VDROOP is now VBOOST :shocked:

Vdroop of 0.072 volts has now turned to a BOOST of 0.048 volts

Before pencil mod:

1.6000V BIOS = 1.552v idle = 201watts, P95 8k load = 1.480v = 359watts

After pencil mod:
1.4625V BIOS = 1.440v idle = 181watts, P95 8k load = 1.488v = 367watts

Passed priming overnight. This is nuts! :ROTF:

Makes me wonder about if I am stable at near idle though...

[GMX]

it's ok, some dfi boards do that "vboost" lol

[davexl]

it's ok, some dfi boards do that "vboost" lol

Lets face it, rubbing a pencil across a resistor... I did not have high hopes!

I would have been happy with reducing vdroop, let alone reversing it.

This is close to ideal behavior is it not? Lower power at idle, juice when you need it...

[VoRtAn_MaDgE]

Can anyone tell me the original value for the vcore mod resistance ?

Talking about the one that has the yellow wire soldered.
http://img.oc.com.tw/8k0285/2006821172341783472953.jpeg

And the other next to it's right ?

Thks.

[funkflix]

Guys, what is the highest Vmch u can reach on ur P5B? My board will not boot, if i set Vmch higher then 1,66V.. But i need more Volts to get FSB > 505MHz with 1066-Strap! Any ideas?

Thanks!

[SPivX]

I am wondering if i can safely do the vDroop mod with conductive paint? I already tried it, and no shorting and vDroop anymore, but a little overvolt on load (0.01 - 0.02v). But i got warned by other members, so i quickly undid it.

Now, i Googled a bit on the subject, and came across this guy who also tried it with success:

http://www.blazingpc.com/forum/showthread.php/vdroop_myth_debunked-6576/index.html?

So, the question is: can i safely do the vDroop mod with conductive paint? What are the long-term effects? Can the board handle the extra current! tnx, SP

[celemine1Gig]

I am wondering if i can safely do the vDroop mod with conductive paint? I already tried it, and no shorting and vDroop anymore, but a little overvolt on load (0.01 - 0.02v). But i got warned by other members, so i quickly undid it.

Now, i Googled a bit on the subject, and came across this guy who also tried it with success:

http://www.blazingpc.com/forum/showthread.php/vdroop_myth_debunked-6576/index.html?

So, the question is: can i safely do the vDroop mod with conductive paint? What are the long-term effects? Can the board handle the extra current! tnx, SP


Short answer: NO! :shakes:
Conductive paint does create a (nearly) zero Ohms connection, while you only want to decrease the resistance value.
And believe me, this guy in the thread that you linked to, doesn't even remotely have a clue of what he's talking about. :) I wouldn't go as far as calling him an idiot because I don't know him personally, but honestly, he's talking bull.
And remember to use a multimeter when doing mods like that. Without measuring, it's like a lottery.

[SPivX]

Thank you for the answer. I will do the mod again tomorrow using a pencil. The first time i did it, i noticed that i needed a lot of painting to lower vDroop. I couldn't get it gone even after 4 times of tracing! I used a HB pencil. And the graphite made a mess around the transistor, which should be dangerous.

Do i need to use a different pencil? Any other clues?

[celemine1Gig]

You need a multimeter. Resistance isn't measured in pencil strokes, you know?
:D
And yes, perhaps a different pencil would be better. But I never did pencil mods. I'm more into good old solid soldering.

[SPivX]

I have a DMM, and will use it tomorrow ;-) Also i have this "pencil-pen" (don't know the correct English word for it) with a very hard tip. I think i'm going to do the mod with that, and measure resistance after each couple of strokes.

I'll let you know!

[stummerwinter]

Is there a vPll-Mod availible for the P5B Dlx?

Also measure point would be interesting for me...;)

Thanx in advance...

[celemine1Gig]

Is there a vPll-Mod availible for the P5B Dlx?

Also measure point would be interesting for me...;)

Thanx in advance...


If no mod is available yet, just take your multimeter, set it to continuity testing mode and put one probe on the socket land named "VCCPLL" (D23). Then probe around next to the socket for direct connections to find out where it's running to. That way I found the VPLL mod on my AW9D. Quite easy. If you found direct connections, just keep following the direct connected traces to find the origin.

[stummerwinter]

Sry, can't find it...:(

Couls you held me out? Should I post some pics? Would this help?

[celemine1Gig]

Yep, post a pic/pics of the CPU socket itself, then I'll mark land/contact D23 for you. ;) Some pics of the sockets surrounding sure wouldn't hurt, too.

[stummerwinter]

Sry for late response, I'm quiet bussy...

Here the pics, if you need details or other, just tell me...

http://oc-x.de/mods/p5b-1.jpg

http://oc-x.de/mods/p5b-2.jpg

http://oc-x.de/mods/p5b-3.jpg

[celemine1Gig]

Check this pic:

http://www.alice-dsl.net/ingmar.kristian_klein/PUBLIC/p5b-2.JPG

You can also have a look at Intel's Core2Duo datasheet for reference. ;)

[stummerwinter]

Ok, thanx, NOW I understand what you're talking about...:rolleyes:

I'll try out and keep informed...

[celemine1Gig]

You can always contact me over ICQ tomorrow if there are any questions. ;)

[stummerwinter]

Sry, was busy...

Here some results...

I measure more or less all points in the yellow rectangle you marked 56 kOhm, except these...

http://oc-x.de/mods/P5B-Dlx-D23.jpg

[celemine1Gig]

Sry, was busy...

Here some results...

I measure more or less all points in the yellow rectangle you marked 56 kOhm, except these...

[/IMG]http://oc-x.de/mods/P5B-Dlx-D23.jpg[/IMG]

OK, now please measure the resistance between the green marked pionts and ground.

[stummerwinter]

61 kOhm

Were to find the vPll-measure ponit? I would guess at the transitor at the top...

[celemine1Gig]

The points in green and anything directly connected to it are the measure points. ;)

[celemine1Gig]

What you'll need is a 1 MOhm and a 100 KOhm trimmer in series. The 1 Megaohm is there for the rough adjustment and and the 100 Kiloohm will do the fine adjusting when reaching the non-linear resistance range of the 1M.

As this is a linear and no switching regulation circuit, the points directly connected to land D23 are measuring points, too.

You solder the two trimmers together in series and then solder them in between ground and one of the green marked contacts. That should do the job. Of course you'll have to set the trimmers to maximum resistance here before soldering them in. ;) Before powering up connecting the system to power check the resistance between the green marked contacts and ground one more last time. It shouldn't be much lower than 58 KOhm.

BTW, as a side note: Ground could be just on the contacts directly above the two green marked empty soldering pads where normally most likely some additional ceramic caps would've gone.

Wenn du noch Fragen hast, schreib einfach im ICQ oder schreib ne PM. ;)

[stummerwinter]

Ok, thanx...

Need to get 1 MOhm-trimmer first...

I'm gonna measure first the vPll without mod...

Edit: ok, even with 500 MHz FSB the vPll ist 1,5 V...

[celemine1Gig]

...
Edit: ok, even with 500 MHz FSB the vPll ist 1,5 V...

There is not much load on that circuit, so why should the voltage drop. Just have a look here:

http://www.xtremesystems.org/forums/showthread.php?t=179757

[stummerwinter]

Sry, wrong expression...

Thought it might increase the vPll automatically with higher FSB...;)

[celemine1Gig]

Ah, OK. Then this was a misconception on your part. ;) Unless you change the voltage intentionally, it should never be much less or much more than 1.5V.
BTW, it is spec'ed as 1.5-1.575V by Intel.

[stummerwinter]

Question: all values are measured without CPU...

Is this the right way?

Tried with 500 kOhm and 100 kOhm, no effect on vPll...

[celemine1Gig]

Question: all values are measured without CPU...

Is this the right way?

Tried with 500 kOhm and 100 kOhm, no effect on vPll...

You mean you trimmed both down and no voltage change?