-Vcore mod
-Vdrop mod
-Vmem mod
for P4C800 E Deluxe rev. 2.00
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-Vcore mod
-Vdrop mod
-Vmem mod
for P4C800 E Deluxe rev. 2.00
Nice work! I've been looking for this1.
About those heat spreaders....are they really useful? I mean...I have an open case and two 80mm blowing over it...is taht enough or should I put some spreaders on?
I think you should use heat spreaders! :)Quote:
Originally Posted by b|lly
OK. Am..can you upload just one more...then entire board so we can see where to put spreaders? Or you have them on every mosfet? And....what about NB cooling?
These are the results of the mods! :banana:
You should put heat spreaders on every mosfet.Quote:
Originally Posted by b|lly
For the NB I use the default heat spreader with a 4 cm fan blowing air on it! :) :) :)
And what's your CPU cooling?
Any super pi results on that speed?
I use a Silverprop waterblock with frozen water (not a chiller)!
super pi 32 M unpatched 24 min 27 sec :D
super pi 1 M unpatched 28 sec :banana:
Hi again, I've switched to asus p4c800-e dlx, since abit ic7 wasnt good enough :)
Mods are done, but haven't tested OC yet..."working" ATM...
I jave 3.2 D0 SL7E5, is your CPU the same?
If it is...how did u set the droop trimmer? 27k ohm or smth else?
And final question...which bios version are you using?
Quote:
Originally Posted by b|lly
I have exactly the same cpu SL7E5 ! :)
The drop trimmer has been set at 2 khom!!!
I am using 1020 beta bios :)
You have 2khom?? Omg, other ppl advice to use 27kohm or even 36 ;)
Is your voltage stable then? Mine is 1.552 - 1.520.
Let me try this bios ;)
Yes it is very stable . During the 32m bench the volts were between 1,71 and 1,68volts from mm5!
:)
I think low values of the resistance gives stability both in high (over 1,6 volts) and low voltages but high values of the resistance like 27 kohm or 36 kohm gives stability only in low voltages like 1,5 or 1,55 volts.
:)
that is of what I have seen in my mobo! :cool:
@ 28kohms, my old P4C800 used to have .016vcore fluctuations.
was it rev. 2.00?Quote:
Originally Posted by Malves
Yes, sir.
I hope that prescott is not doing 1.71 on air :p: ....btw very nice OC.
Malves u still have your site up with those mods by chance ?
http://www.malvescorner.net/
malves, was that on north, or pressy? or that doesn't matter?
....the way to freeze .......my prescott!
:toast: :toast: :toast:
It was a 2.4C north. I believe it does not matter.Quote:
Originally Posted by b|lly
I dont know what i'm doing wrong here...
I have p4c800-e dlx and SL7E5 as mentioned above...but I have a huge droop!
The vcore pops arround like a monkey, from 1.488 all the way up to 1.553 ! Well that are spikes, but i think they shound't be there...
Any ideas about it?
I've tunned the trimmer a little bit now.
And droop under load is as malves said...0.016, it droops from 1.52 to 1.504. But the problem is vcore when idle...it's 1.554.
Isn't that a little too high for pressy? I run my PC 24/7...
when you use the vdrop mod you have a little overvoltage! when idle!Quote:
Originally Posted by b|lly
I think you are ok! :)
I have this board with 2x512 ADATA PC4000 with a Pentium 4 2.4c and I'm stuck in the low 260's FSB running 1:1 with PAT and the other Performance option enabled.
I have to wonder how some people get any higher than 265 because I've tried extra voltage and all kinds of stuff. I've read countless articles of how this proc oc's and before I got any of the proper hardware I had imagined taking it up to 3.6+ GHz but I'm stuck at 3160 MHz.
Can someone please tell me what I'm doing wrong? It seems I have the lowest overclock of them all with this setup.
I think the cooling is possibly my problem. I have all stock air cooling. I tried overvolting the fan but that didn't work out too well. I was wondering if it would help to put a fan on the NB sink?
I don't know the capabilities of the ADATA, but have you tried running 5:4 instead of 1:1?
I've thought about but I'm really concerned about performance losses by disabling the performance features and running it in ratio.
What would be 5:4? This board lists them as 266, 333, and 400.
400 = 1:1
333 = 5:4
266 = 3:2
Try running 5:4 and see what you get. Then run some benchies at 1:1 and 5:4 to see what gives you better performance, if you are concerned with that.:)
Not much luck. I guess my problem is the cooling. It can't be the RAM unless ddr500 just isn't enough. ADATA manufactures their own chips so they should be top notch. If I ever get the money I'll get PC4400 or something. Maybe some OCZ.
I had the same problem!
I had a kit 1 GB mushkim pc4000 and Ι did not go over 257 mhz fsb with any divider(1:1 ,5:4,3:2 ) I tried :(
I tried with 2x256 MB corsair ( BH5) at 270mhz 1:1 with 3,7 volts and everything was ok :)
3.7?! on what and how?!
on P4C800 E Deluxe with ocz booster! :)
3.7 through your ram?! WoW. Talk about durable.
It was only for bench! Super pi 1M 29 sec @270 mhz fsb 1:1 at 2 2 2 5 pat enable corsair XMS3200 2X256 MB with 3,7 Volt with ocz booster !
holy :banana::banana::banana::banana:, does that booster work on any ram?
It is only for ram .....which loves Volts!!! :stick:
I also have an asus p4c800 e deluxe rev2 and a P4 2.4c. I'm a noob in soldering but i will try.
A few questions:
Do i have to do both vcore mods or only the droop mod ( my vcore is drooping)? I don't understand why u did a vcore mod (you can set your vcore pretty high in bios)
Do I have to use tin?
thanks
marre
You have to do only the Vdrop modQuote:
Originally Posted by marre
:)
You don't need the Vcore drop because you have a Northwood and this mobo is able to give to Northwood as many Volts as you want, from bios.
The problem is with prescotts....the mobo can't give more than 1,6 volts from bios!
beware...if you want to run a very high vdimm and 3.3V rail, put some sinks over mosfets arround CPU and some fan to cool them.
I burned one mobo becase there were no cooling running vdimm @ 3.6
Quote:
Originally Posted by b|lly
:slobber:Quote:
Originally Posted by micdoc
I checked in CPU-Z ON MAINBOARD TAB.Quote:
Originally Posted by micdoc
Next to Model it says Rev 1 .xx but just below that is says Rev A2
What version do i have?
I noticed your using Vantec tornado i have one ITS SOOOOO LOUD. What kind of fan switch do u use? or can you recommend a better and quieter fan.Quote:
Originally Posted by Dynasty
Thanks
Look between pci slots on mobo will tell rev.# below the EQuote:
Originally Posted by irfs
Are these mods valid for a Asus p4p800 deluxe.
Thanks
Go here. Please, note that for the droop mod on the P4P800 has changed after Asus made a revision on it. Do a search here for it, and you'll find the other way to do it, if your revision is different than the one on that site.Quote:
Originally Posted by elec999
:)
Does increasing the 3.3v rail effect the temps of the mosfets?
hello everyone. im new here. this looks like a great forum for modding, so i registered.
i am in dire need of the vcore mod on my p4p800 e deluxe. ive done vdroop and vdimm, and they both work excellently.
i attempted the vcore mod by soldering a VR to pin 8 (fb) and ground on the ADP3180 IC, but had no impact on my vcore. ive never seen anyone actually say that it works on their p4p800 e dlx. apart from the p4c800 dlx, i dont know of any mobo that has the same ADP3180 IC. any help on this matter would be greatly appreciated.
is there perhaps a very fine line in the VR adjustment that enables vcore change. the volts stayed the same for me as i reduced the resistance toward 0K, but got to a point where the screen goes blank and wont reboot till up the resistance a little.
:fact:
ADP3180 is used on the P5P800 as well as the P5AD2-E
-CaT
thanks catalyst. ill look for vcore mods on those boards and compare.....
Does this mod work on the P4P800se ?
thanks :D
For P4P800 mods go here. Compare the boards layout and see if it works for you.
are these mods the same for p4c800 NON E-dlx?
Yes, they are for P4C800 series.:)Quote:
Originally Posted by GoriLLakoS
have someone a mod for vagp? p4c sure :)
www.malvescorner.netQuote:
Originally Posted by Mrki
Quote:
Originally Posted by Malves
thx m8
im a bit confused her . maybe its another revistion i have ,but im having defeculty finding where to put the vcore mod. anyone have a rev 1 picture ,thanks in advanced ,
Hi Malves,Quote:
Originally Posted by Malves
I'm using a bog std P4C800E Deluxe. VCore is set at 1.5375v at 246fsb on my 2.8C yet Probe sez its 1.6/1.616v idle!?
Using 1021bios, but all bios versions appear to give same readings! :confused:
Wondered if this is Winbond borking it up but value your thoughts on the matter. Thanks! :)
DOnt worry bout it. It overvolts by default to begin with and no fix for that.
Thanks Akura. :cool:Quote:
Originally Posted by AKURA
Malves, id like to get all the mods done to my p4c800 that you can do:) im running it at about max right now 3.0e@ 3.75. i need the vdroop, vdimm.
Thanks
Send me a PM, bro.:)
ive tried doing the vcore mod on a p4c800 deluxe today . id like to have clear some questions. i did the point A mod. i put one end on point A then through a 50 k and back to a grund on fan stick. is it done right ? if so how do i fire it up. put the vcore on auto at forst, and then slowly turn the trimmer while in biose to se the vcore rise? apriciate any help .thanks
and another thing ,which one is grund on the pot meter .the leg nearest the end or the other closer to the middle? does it make a difference which i put where since they both go through the trimmer ?Quote:
Originally Posted by vanovich
Ja, I'd also like to know where to measure the VCore, as I'm stuck at 1.6 with my Prescott and P4C800-E Deluxe.
I cannot see a VMeasure point for the VCORE on the first post. Is the Bios mobo monitor accurate enough to use? What resistance should I solder the variable resistor on at?
Thank you :)
your mod is ok!Quote:
Originally Posted by vanovich
when you decrease the variable resistance (from 50k to 1 k) --->the Vcore increases.
:cool:
how much encrease on vcore can one get after the mode .? and thanksQuote:
Originally Posted by micdoc
Pah, ignore my post then :(
here is an example from my mobo:Quote:
Originally Posted by vanovich
I have put Vcore @1,54 Volt from bios,the vriable resistance is @ 22k,and the real Vcore is 1,72Volt..........
:p:
you can measure Vcore on a P4C800EDeluxe between Ground and this point.Quote:
Originally Posted by Stocky
:)
Excellent! Cheers :toast: About to do the mod, will report back when its hopefully up and running! :)
You wouldn't believe how difficult that spot is to get to with the DVM probe!
Anyway, I have done the mod, and just watched it go over 1.7V. Will post a pic of it, as I got some heatsinks on the mosfets too :D
I really need a better location to measure the VCore, as I just can;t get to it with the probe, and I really don't trust the measurement in the BIOS, it jumps around like crazy!
Here's the mod done, with the heatsinks on the mosfets:
http://www.killsound.com/kustom/vcore.jpg
here is another location :)Quote:
Originally Posted by Stocky
Cheers Micdoc, that point is much easier to get to! It measures totally different to the bios though?! I am measuring 1.6V @ coil, and 1.75 in BIOS...
at my mobo the difference between that point or the other and bios ...is only 0,01volt.......Quote:
Originally Posted by Stocky
:)
does the VDIMM Mod HAVE to use a 50 k resistor? i've got 10 k handy but not 50...
Hii, correct me if i'm wrong, but i strongly belive the measurepoint(s) should be on the OTHER side of the coils. (from micdoc pictures).
Measure on the coils on the side towards the socket, not towards the edge of the board.
Best regards
Hi i'm searching for P4P800 VM modd had someone a link ?
When I solder on the VR's. Do I have them set to no resistance before I turn on, then keep turning them around till I find the desired voltage ? Or do I start with heaps of resistance ?
Ryan
start the VR with full resistance and then turn down for more volts, unless specified its always high resistance.
Can I adjust the VR's when the computer is on ? Or is it best to do it when it's off, notch by notch ?
Ryan
You should do it off, notch by notch.
And always take readings with MM.
a much ezier way to do Vcore mod by Me:D To solder to pin #8 you need good tools and superb soldering skils. You realy dont want to get some solder on those pins ,sure way to screw ur motherboard if you accidently connect few.
http://www.xtremesystems.org/forums/...7&d=1122425230
@ Railer
Is it possible to send me a better photo of the mod? And perhaps easier instructions? I´ll like to do this mod but I don´t want to make a mistake.
Im planning on asking ViperJohn to do these mods, he lives around me and i talked to him at ocforums before and hell do it for cheap; he said id have to dial in the mod, but it usually comes pretty close, by dialing in what does he mean exactly? (droop mod)
Banzai | To get the mod perfect you must read vCore at both idle and load while system is running and adjust trimmer.
Mayk-Freak | Just solder one wire from 50K Ohm trimmer to point shown and another wire to trimmer and any ground like mounting hole shown or fan header.
Circaflex | By 'dialing in' he means adjusting for your board and cpu. It is possible on some boards to encode vCore boost under load with vDroop mod. We must adjust and read at both idle and load. When idle is ~ 0.01v higher than load, we adjust under load to match last read idle. This should give us +0.01v under 100% load.
Below is P4P800-SE, this one needed 6.8K Ohm for +0.01v boost.
http://img189.imageshack.us/img189/4...12180027wo.png
http://img189.imageshack.us/img189/9...12180019um.png
http://img189.imageshack.us/img189/4...12180046sj.png
http://img189.imageshack.us/img189/4...12180053xx.png
nah, you can leave it on. I never ran into problems adjusting vcore, vagp, or vdimm. Heck how could you adjust the droop mod with out the system on. If you turned the system off it would be a trick to get it just right.Quote:
Originally Posted by Golias
Vagp mod... Will it increase the PAT handling of the northbridge at low FSB with 4x 512MB of BH-5 ram?
Maybe I can get alittle higher with PAT? Is it worth doing in my case?
General specs in sig. Vdroop (28k) and Vdimm (3.4v) are done.
what is the max Vdimm I can get with the vdimm mod?
I think than will be arround 3.2v for VR= 0 ohm ¿is that correct?
I will use Bh-5 and I won't need using lees than 3.2~3.3v, so my cuestion is: ¿can I use a simple wire to solder pins 4 and 6 directly?
Thanks for help
The max Vdimm will about 0.2v less than what your 3.3v line is set to.Quote:
Originally Posted by GT-one
If you do a Vsence mod to your power supply 3.3v line. Cut the Vsence 3.3v line and add a VR until you get more voltage than you need, ~3.5-3.7max and you should be able to rise the voltage to the Vdimm to what you feel like.Quote:
Originally Posted by GT-one
Increase the 3.3v rail to increase the maximum Vdimm, but beware if you go to high, the power supply should cut out if to high (if it has overvolt detection).
Do a search for the power supply Vsence mod wnd you will know what you can do with it.
Good luck.
My PS is allready modded :), and off course I will use vdimm around 3.5v so I will rise 3.3 line up to 3.7 (+,-).
The cuestion is that if it's safe to change the VR for a simple wire, and for the answer of persivore, I think so.
thanks
Hey guys!
I wanna do the vcore and vdroop mod to my P4C800-E Deluxe, to be able to give more than just 1.56v to my dothan, and I was wondering how to do it. OK; I see the pictures, but the pins are really tiny!!
Then, I have to connect a 50k vr to the pin the picture says, and the other side of the cable to ground, right? Like the black cable pin of fans?
Thanks!
Yes, although I think most dothans don't seem to respond all that well to vcore over 1.6vQuote:
Originally Posted by PoL
I did the vcore mod and got very little to no increase in my max stable overclock with a dothan 750 at upto 1.73v
You may have better luck though :)
Can someone please measure the capacitance of the cap that is soldered to in this mod
http://www.malvescorner.net/images/p4cdroop2.jpg
Sorry for this question again but i want to be 100% sure that soldering a wire from pin6 to gnd (fan header) also works good ?
GT-one asked that question but it wasn't really answered.
Thanks
Pin6?
The picture says pin8. We are talking about the vcore mod here aren't we? Well, either way any ground will do, I normally just look for one close by but the fan header ground will do the job just fine. I used the alternative 'point A' for vcore from the pic on the first page as I don't like soldering to IC's (if I can avoid it).
EDIT: Ahh, I see you mean for vdimm with pin6. Same thing though, you should be able to use any ground.
yep it worked, also did the vdroop mod with 28k resistor.
For some reason i can't boot with 1.7v vcore or higer
(don't know if it's because the droop mod)
i read that the vcore fluctuates 0.15v when going higher than 1.7v on p4c800 is this true ? and is there a fix for this ?
all voltages lower than 1.7v are stable
Hi guys, has anyone got a guide for these mods and a list of what I'll need for each one? I'm on a P4P800E-dlx flashed to SE and I need more volts for my RAM and more speed from the CPU would be nice.
Thanks. :cool:
EDIT: :/ Found them on Malves site, I guess I can use a variable resistor for the Vdimm mod?
Oh yeah, what's a "trimmer"? Just a different name for a resistor?
the same as p4P800(se)Quote:
Originally Posted by 200%absolut
Quote:
Originally Posted by monkeypants
it´s a variable resistor ...