Quote Originally Posted by jkresh
Hi, I am having some very strange problems.
Water-cooling my p5wdh (just processor for now, chipset has a zalman passive sink on it and is running at 35C, processor doesnt go above 25c at full dual prime load).

I haven’t started over clocking but I am having random crashes. I can run dual prime95 for hours on end (without an error), run 3dmark fine, run burin tests on every part fine. But if I try to just do regular computing it locks up (I.e. I could after 8 hours of no errors in prime click on the start menu and it would completely lock). I tried booting a ubuntu disk but it wont load (not sure if it relates to the fact that I am using a sata DVD drive), I havent reinstalled windows yet but I am running out of ideas on what else to try. Any suggestions would be appreciated (running bios 1101, thinking of going back). I have tried clearing the cmos and even left the battery out for hours (after putting it back I haven’t been able to get it to remember settings as every time I unplug it looses everything).

put a fan on the NB!
The temp you see is SB, the northbridge gets quite hot and gives the locking problem you describe!
I have a fan over the original NB heatsink, running D820 at 4GHz the northbridge will get to 65-70degC during load still! Vcore is 1.6, vdim is 2.2.
Works nearly 24/7 stable, but without the fan i get locks like you describe.