I know the P5N-D sucks

Wondering how would I know if I need to raise voltage for NB and stuff, and what voltages to set them to. Currently only raised vcore and a vdimm for the rams (2x 2gb now at 1.9v, 5-5-5-18 for stability).

E8400 proc, at 3915 mhz (435x9) at 1.32volts-bios (1.25-1.26v on load) but when I leave OCCT on mix running for a few hours I come back and my pc is frozen. Same with prime95 on blend, though that froze in 15 minutes. Program didn't terminate or prompt error, but the screen is frozen. Only can push reset button

However, the pc doesnt freeze when I do prime95 small fft for over an hour. And orthos doesnt freeze or return any errors too (so far 1 hour on priority 8).


What should I do? Memtest 1000%?
Raise vcore?
Anything else?

This post has been edited by RahXeph0n: Apr 12 2008, 04:14 AM

Hmmm. Okay. I increased my vcore and it seems much better now, no freezing or failing and stress tests so far. I'm more cuirous about the NB voltages though. What would be a reason to raise that? Also, when peopel say for example "stable at 4.5ghz 1.5v" does that mean it's 1.5v under load, or in bios setting, or idle? Or do good mobos have 0 vdroop?

Very few people use the P5N-D haha. Hard to find overclocking discussions.


Err... was that for me?

This post has been edited by RahXeph0n: Apr 13 2008, 02:20 AM

If you overclock manually, you have to set the AI tuning to manual, and hence the power saving features will be disabled if i'm not wrong.

Anyway, finally got my proc stable I think.
Had to set NB and HT voltage to 1.3 (Through random trial and error)
Under load, cpu-z shows my voltage under load as 1.264v 7/8 of the time, 1/8 of the time as 1.280v . When idle it also shows 1.280v
My rams suck. Had to use 5-5-5-18 timings in order to get it stable at 880mhz, and that is with 2.01 volts in bios (shows as 2.05 in AI-suite)