Nightmare overclocking with GA P35 DS4

ChrisD.

ChrisD.

ChrisD.

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Joined
20 Sep 2006
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Trying to find it's max clock on my Q6600 with this board. However if I find one then it POST's and runs fine on Prime with good temps and I go to change anything it gets into a reboot loop.

For example earlier I was priming at 3.6GHz and the temps were fine. As I'd put in a high voltage I thought I'd up the FSB from 400 to 420 (nothing major, should at least POST) while keeping the memory s close to 800 @ 5-5-5-15. Wouldn't POST. After a set of annoying reboot loops it reverts to stock then I finally get in the BIOS. So I thought, this board is annoying me I'll just stick it back at 3.6GHz as that's fast enough really. No POST, annoying reboot loop again.

Finally got it to POST at 3.6Ghz now but I reckon if I reboot it'll do the same thing again.

Any ideas? VDIMM at +0.3, tried VFSB and MCH at +0.1 no diff. VCore currently set at 1.525 in BIOS, prime load it shows 1.44V in Everest and CPU-Z.
 
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Yeah it won't touch the RAID array (tho you'll have to reselect the RAID option in BIOS).

It *should* flash from a USB stick, tho some people have had problems and have had to use the windows flash utility. Remember to select 'Select Optimized Defaults' before and after flashing.
 
I've had this when a overclock fails. When resting the bios back after to what you want after defaults have been applied you need to reset everything to what you want including the hidden F1 setting and even going back in and confirming thing that do seem to have changed like cpu volts.
 
Sorry lads, RAM was at +0.3V as per the right Voltage what it requires. I'm a bit concerned about pushing it harder as it's 4 sticks packed tightly together and they produce a lot of heat.
 
Yeah just installed it and managed to hit 3.33GHz straight away, something that I'd struggle to do with the old one.

I also like how it tells you what the target CPU speed will be when you adjust the FSB.
 
I'm using F6 BIOS

ADVBIOS.jpg


INTPERI.jpg


PWR.jpg


MIT.jpg


I'm only using 2 sticks of RAM (4 sticks might be harder to overclock).

I can get this stable at 4.05GHz (450x9) but it needs 1.6V to do it, and the chipset runs VERY hot when it's maxed out.
 
f9 is deffo better, I have 4 sticks of ram in, I can now reduce vcore and ram volts and still keep it stable at 3.8.

They have corrected quite a few options in MIT, mainly the vcore selection, and vdrop is a lot less with the new option enabled.

WJA96, it worth a try mate.
 
the f9 bios deffinetly helps with the overclock on the ds4, i had a lot less vdroop with it.

also you could try dropping the memory multiplier spd to 2x, it dropped 10degrees off my core temp and allowed a better overclock for me as the memory was running in sync

to get 450fsb stable on my ds4 it needed .3v on mch and fsb
 
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