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These are modifications for other boards than the MSI and Gigabyte. I haven't tested them myself just yet, so PLEASE DON'T TEST if you don't want to. I don't guarantee these work, I'm just following the same methodology.

 

PLEASE confirm if it work!

 

Asus M3F

 

asus.jpg

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  • knopflerbruce
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    I wonder wthat that mod actually does... But cool to see a manufactuerer giving away mods:D

  • Reviving an old thread lul, mod yet untested but this should be the resistor to short for CBB on a maximus 3 gene / maximus 3 formula, up next gotta figure out my P7P55D

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Without modification: coldbug ~-110°C

 

250x23.png

 

Then tried 255MHz ... not at -95°C, not at -100°C, but works at -105°C

 

255x23.png

 

Max bclk was 260MHz, but not cold enough. Now board warming up and will see how it works after coldbug modification.

Didn't work on my P55A-UD3R Massman...I tried taping the pin but the system failed to post...just power cycle over and over. Removed the tape and it posted just fine :confused:

I'll try removing the resistor...

Edited by miahallen

Removing the resistor cause the system to fail to post...

 

so I tried shorting the contacts with a proper solder job...and it worked :)

 

Quick assesment shows new CBB at -145C and CB at -170C (or so ;) )

Edited by miahallen

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so I tried shorting the contacts with a proper solder job...and it worked :)

 

Yeah, sorry, that's actually the most important part: either you remove the resistor or not, connecting both 'ends' is the message.

 

I've updated the opening post.

same controller but diffrent layout for soldering point

 

i have used your image and marked the 2 points you can use

with out having one i cant say what vr to use but if its anything like the gd-85 it would be 20k or 50k vr

th_P55-GD80-uP6218AM.jpg

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though there is some way to fix clarkdale 's cold boot and bug

if your using LN2, then could help you down to lower temperature

the first mod is short PEG_Rbias. that pin you can find one cpu backside

and motherboard, so you just need to choose which one is easier for you

 

tool:

pencil ------- most of time not work, casue you didn't do it very well

silver pen -------------esier

solder ------------only work on motherboard mod, on cpu its too dangerous.

 

CPU Pin mod

short 2 pins (red spot)

pinmod.jpg

 

 

P55A-UD7

p55aud7.jpg

 

P55A-UD6, P55-UD6, P55(A)-UD6©

p55ud6.jpg

 

P55A-UD5,P55-UD5

p55ud5.jpg

 

 

H55-UD3H

h55ud3h1.jpg

 

 

P55M-UD2, P55-UD3L, P55-US3L, P55-USB3, P55A-UD4P, P55A-UD4, P55A-UD3P

P55A-UD4P, P55A-UD4, P55A-UD3P, P55A-UD3R, P55A-UD3, P55-UD4,P55-UD3, P55-UD3P, P55-UD3L-TPM

P55-UD4P, P55-UD3R, P55M-UD4, P55-UD3L, for other board belonds to UD3/P series, should be the same

ud3.jpg

 

Source: XtremeSystems

PEG_RBIAS present on 1366 platform too, but related to IOH.

 

If anybody want try I can show :)

 

Tylersburg chipsets have PE0RBIAS (ball AN34), PE1RBIAS (ball AN13). these are hooked to GND with same 750ohm resistor.

 

But coz 1366 IOH is extra chip, not part of CPU package it may not be related to CB/CBB's.

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PEG_RBIAS present on 1366 platform too, but related to IOH.

 

If anybody want try I can show :)

 

Tylersburg chipsets have PE0RBIAS (ball AN34), PE1RBIAS (ball AN13). these are hooked to GND with same 750ohm resistor.

 

But coz 1366 IOH is extra chip, not part of CPU package it may not be related to CB/CBB's.

 

Thought about it, but could not find...

 

Can you please tell me the landmark or sent me magnifying glass...:D

 

Lets see, I might try...

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