2.4C@3.7GHz - 1.44V on plain water...

[TodB]

DAMN..... that Malaysian 2.4C likes water very much.... too bad, that I got only PC2700 Memory and a Radeon7000 right now...

That all is made with the system in my signature except for the CPU ( another 2.4C ), memory and video.. and the cooling is a regular water cooling.....

Well not just regular.... but a fine made water block and all..... made in Bulgaria :cool:

I'm really going to push the sucker even more... damn.....

[kromosto]

hmm nice whats the code of that 2.4

[TodB]

Originally posted by kromosto
hmm nice whats the code of that 2.4

Well tomorrow I'm going to take it off and will write the code down :)

Still.... my own 2.4C won't do more than 3.5G under water.... and 3750 under the Vapochill..... too bad, that the insolation of the vapochill is really hurt ( because of the previos owners ) and I had to put it to rest for a week or two until I fix that....

[TodB]

Ufffff, what an Idiot am I.... forgot the picture

[kromosto]

i want that 2.4c very much lol :D

first i have to get a good cooler or i am going to try makeing a one for me

[TheDude]

Congrats! nice chip!:D
:toast:

[eva2000]

Look on the cpu box for the batch code ;)

[TodB]

Originally posted by eva2000
Look on the cpu box for the batch code ;)

Well it's not mine, it belongs to a friend of mine.... and he got it tray :D ..... from me :D :smileysex

[TodB]

Well.... no luck for 3.8GHz..... but I think that it's not the CPU... or that particlular CPU don't like more than 1.5V...

I got the same lockup @Welcome Screen every time, either with 1.525V ( 1.44V under load ) or 1.7V ( 1.58V under load )..... I think it's the §§§§ty PC2700 TwinMOS/Samsung TCB3 memory....

[althes]

Very nice cpu. Got one I am trying today.:D

[Liquide]

I wish I was that lucky sometimes :eek:

[xDUCK]

Your 3.3v rail seems pretty low there. :D:rolleyes:

[Amoeba Assassin]

do you have vapo or water cooling?

[JCviggen]

man those P4Cs undervolt just insanely under load. Typical ASUS to make a great board and then give it a powersupply that cant handle anything at all to save 2$ on a board. they ought to take a lesson from ABIT and use some descent mosfets

[TodB]

JC, you're right about 100% right man..... it's just fooking stupid.... setting 1.7V in BIOS and watching the real value about 1.6V.... it drives me crasy.... but then again - it's a really great board..... 4PCA3+ sucks compared to it.... don't know about the IC7 - never had the pleasure testing one....

Amoeba, it's @3.7GHz with water cooling..... water running @room temps..... I got Vapochill, but got insulation problems.... but then again I wrote that in mu first post....

[STEvil]

Grab a high power soldering iron, some tweezers, and replace them.

[Kunaak]

have you tried messing with the AGP/PCI speed, so your CPU doesn't lock up past 300?

I know this doesn't happen to everyone, but I have had problems passing 300 reliably, without changing the AGP/PCI speed past 300.
it's helped some people, maybe you too ;)

locking on the welcome screen is the first sign of it for me.

[TodB]

Originally posted by Kunaak
have you tried messing with the AGP/PCI speed, so your CPU doesn't lock up past 300?

I know this doesn't happen to everyone, but I have had problems passing 300 reliably, without changing the AGP/PCI speed past 300.
it's helped some people, maybe you too ;)

locking on the welcome screen is the first sign of it for me.

I'm allready @72/36 for stability purposes when running 3D above 302MHz FSB..... I don't think, that 80/40 will help....

Tried also 1.7V/1.8V AGP VDDQ, doesn't seem to help... shame I can't rise the DDR voltage above 2.85V.... it's about modding time I guess...

10x anyway for the tip, Kunaak :)

[macci]

man those P4Cs undervolt just insanely under load. Typical ASUS to make a great board and then give it a powersupply that cant handle anything at all to save 2$ on a board
Well the amount of voltage drop depends on how the 'droop mode' of the regulator is configured. Mine used to drop from 1.76 to 1.68V under load but now with adjusted Droop it stays at 1.76-1.74V all the time.
And as far as ASUS powersupply goes it seems to be one of the best if not the best out there. Atleast this mobo gives the highest CPU OC :) And seems to handle 5GHz too :D

[eva2000]

Droop adjustment ? :confused:

[STEvil]

uh-oh, macci let a secret slip!!

[TodB]

Originally posted by STEvil
uh-oh, macci let a secret slip!!

And he didn't do that very hard :D

Come on macci, throw us some knowledge... :cool:

[gooFly]

The droop mod (http://metku.net/index.html?sect=view&n=0&path=reviews/asus_p4p800/index_eng) that macci talks about can be found over at MetkuMods

[TodB]

Yeah, really nice... but the drop mod picture is really small.... not to mention, that P4P and P4C have different layouts.....

[WiruZDK]

Originally posted by xDUCK
Your 3.3v rail seems pretty low there. :D:rolleyes:

lol very low :)

[hatemi]

Originally posted by TodB
Yeah, really nice... but the drop mod picture is really small.... not to mention, that P4P and P4C have different layouts.....

I think you can find better pics in the forum at metku.net
Not sure but think I saw morkai give the better pics there.
Hope it helps;)

[TodB]

Originally posted by WiruZDK
lol very low :)

I can't find that affecting my overclocking.... because of the fact, that the 3.3V rain doesn't feed anything directly....

[TodB]

Originally posted by hatemi
I think you can find better pics in the forum at metku.net
Not sure but think I saw morkai give the better pics there.
Hope it helps;)

Well he is posting, that he doesn't have the P4C800 so he can tell where's the soldering point :D

[TodB]

Originally posted by y0 dAwG!!!11!1!
that is a nice chip, you should think about upgrading to a prommy

Well where I live there's almost no chance getting a Prommy.... AND the shipping is about 150$ - no thanx.....

[Morkai]

I wrote that Asus P4P800 review (http://metku.net/index.html?sect=view&n=0&path=reviews/asus_p4p800/index_eng). Want bigger picture?

Here (http://www.metku.net/~antti/big_droop.jpg)

Mod works just same way on P4C800. Just solder ~200Kohm variable resistor between CSCOMP(18) and CSSUM(17) pins. (I didn't solder mod right to the pins because I found better soldering points)

[TodB]

Originally posted by Morkai
I wrote that Asus P4P800 review (http://metku.net/index.html?sect=view&n=0&path=reviews/asus_p4p800/index_eng). Want bigger picture?

Here (http://www.metku.net/~antti/big_droop.jpg)

Mod works just same way on P4C800. Just solder ~200Kohm variable resistor between CSCOMP(18) and CSSUM(17) pins. (I didn't solder mod right to the pins because I found better soldering points)

OK now... thanx..... but that's a picture of the P4P, right?

I'm searching for those "better soldering points" on the P4C... don't wanna mess with the pins on the regulator... guess I'll have to check that out myself....

[Morkai]

Yes that is P4P800.

*Good luck*

[Chriviper]

Absolutely luvely chips..tod and ice!!!!!

[macci]

I'm searching for those "better soldering points" on the P4C... don't wanna mess with the pins on the regulator... guess I'll have to check that out myself....
I can post a piccy later this evening. And if you dont want to wait just use a multimeter and follow the traces from the pins to nearby SMD capacitor (around 28kohm will give idle=1.76, load=1.74V).

[eva2000]

Originally posted by TodB
Ufffff, what an Idiot am I.... forgot the picture how come your MBM5 you have vddr voltage displayed ? I thought P4C800-E didn't report vdimm ?

[st0nedpenguin]

Probably a dumb question, but is there a mod similar to this one to stabilize CPU voltage on the NF7-S Rev 2.0?

The CPU voltage on mine is all over the place.

[TodB]

Originally posted by eva2000
how come your MBM5 you have vddr voltage displayed ? I thought P4C800-E didn't report vdimm ?

It says Vddr because I wrote it that way.... it's like that back from the 8RDA+ days..... it's right - P4C doesn't display the Vddr in general :)

Macci, a pic would be really appreciated :toast:

[eva2000]

ah i see.. thought you found something that others couldn't heh

[macci]

http://www.solidhardware.com/macci/p4c800/p4c800_droop.jpg
I used 500k VR set to around 28k

[TodB]

Originally posted by macci

I used 500k VR set to around 28k

Damn, thanx man, will try it ASAP..... :toast:

Originally posted by eva2000
ah i see.. thought you found something that others couldn't heh

Well...... nah..... but I wish I could :D

[toymaker]

Thanks Macci.:thumbsup:

You're like a computer skunk works, man.

[karmakid]

Give us the code already !!!

[Spec3]

Yah....I'm gettin a new one tmrw and would like to know what code that one is....please :D

[TodB]

OK, chill out..... I forgot to write it down, OK?

And the CPU is no more in me fooking Wigwam, allright?

Will contact the owner and ask him to give me the info..... :)

[gouda96]

I had decided to get the 4pca3+ until i read this thread...now i am gonna get a p4c800-e and do vdim mod and i guess the "droop" mod. Looks like the ladder of the mods would be pretty easy to solder, and the vdim can be done with smd grabbers...so i guess it isn't much more work that the 4pca3+ would have been.

[TodB]

So the chip is L318 something... the full code I'll be aware of later...

[notdave]

Originally posted by macci
http://www.solidhardware.com/macci/p4c800/p4c800_droop.jpg
I used 500k VR set to around 28k


does this mod help much ? mine was all over the place with enermax 465 but seems pretty stable with pc power and colling 510 atx,but im still maxing at 260FSB on air with slk900 do you think i could do better with this ?

[Ace-a-Rue]

Originally posted by macci
http://www.solidhardware.com/macci/p4c800/p4c800_droop.jpg
I used 500k VR set to around 28k

Does anyone know if this pic posted by macci is strictly for the P4C800 or does it work also for the P4P800??? Thanks for any help.

[geosin]

Sorry .. have 2 noob question ....
Is 28kohm set b4 or after soldering??
Using a 50kohm VR is no prob right??

Any info is appreciated ... thanks
I'm doing the mod now on the P4C800 ... hope it works :)

[Ace-a-Rue]

Originally posted by Ace-a-Rue
Does anyone know if this pic posted by macci is strictly for the P4C800 or does it work also for the P4P800??? Thanks for any help.

Received an answer from Morkai, and I thank him very much for responding. Obviously, there are different soldering points for the P4P800. That 2nd wire that is obscured by the Intel HS bracket is soldered to the opposite leg of that partially exposed resistor. That should clear it up for anyone attempting to do it on the P4P800....

[Ace-a-Rue]

HERE IS MORKAI'S P4P800 PIC BROUGHT FORWARD (http://www.metku.net/~antti/big_droop.jpg)

[shimmishim]

can someone circle the two points that the wires are soldered on to?

and also...

one of the soldering points looks like it would get in the way of a prommy top cover.


also the pic posted by macci, is that for a vdimm mod?

[Ace-a-Rue]

Originally posted by shimmishim


also the pic posted by macci, is that for a vdimm mod?

Macci's Vcore droop mod is for the P4C800

[shimmishim]

okay so it's the vcore droop mod for the p4c800 thanks!

and this would be the vcore droop mod for the p4p800 correct?

http://www.metku.net/~antti/big_droop.jpg

can anyone also answer my question about this mod interferring or being in the way of the top cover for a prommy?

[Ace-a-Rue]

Originally posted by shimmishim
okay so it's the vcore droop mod for the p4c800 thanks!

and this would be the vcore droop mod for the p4p800 correct?

http://www.metku.net/~antti/big_droop.jpg



Correct!

[shimmishim]

can someone also circle the spots on the p4p800 for the vcore droop mod? i can't exactly tell where they are soldered

[Ace-a-Rue]

Can't you magnify that picture? I can using the standard XP photo viewer...

[shimmishim]

yeah but i just want to be 100% sure that's all. :)

[ALT-F13]

As for topic subject... Sorry, no screenies (NDA:)) but we've got P4-3.4 (Northwood) ES which is capable of 3.9GHz+ on watercooling with 1.7V. It POSTs on 4.15GHz too! Too bad it is not an EE :(

[Ace-a-Rue]

I was able to determine it myself for the one wire and then, I posted remarks about the 2nd wire after conferring with Morkai.

[Ace-a-Rue]

Originally posted by ALT-F13
As for topic subject... Sorry, no screenies (NDA:)) but we've got P4-3.4 (Northwood) ES which is capable of 3.9GHz+ on watercooling with 1.7V. It POSTs on 4.15GHz too! Too bad it is not an EE :(

Is this a Prescott???????:)

[Soulburner]

Originally posted by Ace-a-Rue
Is this a Prescott???????:)
No he said Northwood.

[Ace-a-Rue]

Ahhhh, I was just hoping!:)