Q6600 Overclock Seems To Cause 3DMark06 To Crash

starwars120

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I overclocked my Q6600 to 3.0 Ghz and had problems so I just backed it down to 2.75 and all was well until I tried to run 3DMark06 at a 1680 x 1050 resolution with anti-aliasing at 8. I had my 8800 GTS video card overclocked to 675 core and 1020 memory so I thought that might be the problem. But after I underclocked my cpu back to stock 3DMark worked even with the overclocked vid card. The problem I get is my comp crashes with a big blue screen with this text appearing in the top left corner:

*** Hardware Malfunction

Call your hardware vendor for support

*** The system has halted ***

The thing is that I can run normally with my CPU modestly overclocked to 2.75 but I really wanna use 3DMark06 with it overclocked. Any help would be greatly appreciated!
 

Zorg

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A 3G OC on a Q6600 shouldn't need more voltage. I have mine at 3G and I lowered my Vcore from a VID (stock Vcore) of 1.3 to 1.275.

I guess no specs.

Did you lock the PCIe to 100-105. If you locked it to 100, then try 101.
 

starwars120

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PSU is a Silverstone 680 Watt Zeus Model

Crucial Ballistix Memory is 2 1GB sticks that are running at 667 (standard for this memory) when my CPU is overclocked to 3.0 Ghz (Sync Mode)

MOBO is a P5N-E SLi I believe 650i chipset?

And I left voltage at auto cause like other people have said: an overclock up to 2.75 shouldn't be enough to do so. my VID is 1.3250 And I have a vdroop of about .1 V if i remember correctly

Also, I can run 3DMark06 with my vid card overclocked but with the CPU at stock. So i'm doubting it's the video card.
 

dagger

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If it's 650i, then it's the motherboard bottlenecking. Nothing you can do except getting a new one.
 

starwars120

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are you sure? Nonetheless I was thinking of buying another mobo, but in a while since I just dropped another $160 on my comp about 5 mins ago :p I was suspecting it could be the motherboard, if so what would you guys recommend for an SLI system (although it doesn't HAVE to be, but it would be nice, if you could refer me to both sli and non-sli q6600 overclockers that would be great).
 

Zorg

Splendid
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What?

VID is the Vcore that is chosen by Intel and, I believe, saved in the MSR. That's why I said VID instead of stock Vcore.

From Intel's site.
VID Voltage Range: The voltage range set by the VID signals as a reference to the VR output voltage to be delivered to the processor Vcc pins.

I'll go back and add (stock Vcore) for you. Feel better?
 

dagger

Splendid
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ROFL... :na:

VID can't possibly change. It's probably just a glitch in Core Temp.
 

Zorg

Splendid
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starwars120, did you lock the PCIe to 100?

I would OC to 3G and run Prime 95 for an hour or so and boot to memtest86+ and test the RAM. Do this to see if it is the OC alone or how the OC is affecting the card.

Those SLI mobos don't seem to be as stable as the P35/P45 mobos.
 

Zorg

Splendid
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Well I haven't ever seen the VID change in Core Temp so I'm assuming that he got them mixed up. I believe it is stored in the MSR.

Dagger, put the dagger away. :lol:
 

pcgamer12

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Yeah, it's VID from Core Temp, Real Temp changes sometimes too. CPU-Z Vcore changes as well, but that's normal. Lupi told me it's going to be fixed with next Core Temp update.
 

starwars120

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Yeah PCIe is at 100Mhz last I checked. And as for Memtest I can just make an iso image right? No floppy disk on me anymore :(