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Help me overclock my Q6600 and give it new life! - Page 2

post #11 of 67
Your probably running out of vRAM on your GPU actually. I doubt your CPU is that bad of a bottleneck. 512MB is nothing.
    
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post #12 of 67
Thread Starter 
Quote:
Originally Posted by Kirby1 View Post
250 SLI would probably be pretty on par with a 460 in terms of performance if you got a good 460.
Ah well the desktop came with 1 GTS 250 and so I just bought another GTS 250 (same brand and specs) for 40 after rebate compared to the GTX 460 ~100USD after rebate - since I'm on a budget I believe it was a better choice for me to buy the GTS 250

Quote:
Originally Posted by jam3s View Post
I run my Q6600 G0 at 3.6GHz 400x9 at 1.47v

I don't believe the 680i LT's are very good at overclocking. I would be surprised if you could do > 3.2Ghz
What's the motherboard that you used to OC that high?
post #13 of 67
Quote:
Originally Posted by RagingAzn628 View Post
Ah well the desktop came with 1 GTS 250 and so I just bought another GTS 250 (same brand and specs) for 40 after rebate compared to the GTX 460 ~100USD after rebate - since I'm on a budget I believe it was a better choice for me to buy the GTS 250



What's the motherboard that you used to OC that high?
I used the 780i SLI motherboard, but both 680i/780i aren't that good for overclocking quads... they don't like high FSB for quads.

I consider myself lucky that I even hit 3.6GHz. 3.8GHz was a no go, at any voltage.
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post #14 of 67
Thread Starter 
Quote:
Originally Posted by Blacklac View Post
Your probably running out of vRAM on your GPU actually. I doubt your CPU is that bad of a bottleneck. 512MB is nothing.
I thought when it's in SLI you can add both the vram together? 512x2 etc.

Quote:
Originally Posted by jam3s View Post
I used the 780i SLI motherboard, but both 680i/780i aren't that good for overclocking quads... they don't like high FSB for quads.

I consider myself lucky that I even hit 3.6GHz. 3.8GHz was a no go, at any voltage.
Ah ok gotcha. Is the motherboard "bad" for overclocking because of the chipset or is it because of the settings it support, (1.4v for mine etc.)
post #15 of 67
Quote:
Originally Posted by RagingAzn628 View Post
I thought when it's in SLI you can add both the vram together? 512x2 etc.



Ah ok gotcha. Is the motherboard "bad" for overclocking because of the chipset or is it because of the settings it support, (1.4v for mine etc.)
It's not "bad" per se, if I recall correctly the LT's are not as good as the full blown 680i.

I would say aim for 3.0-3.2Ghz, you'll likely need somewhere in the midst of 1.4v or so. Your mileage will vary, what's your VID on your Q6600?
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post #16 of 67
Quote:
Originally Posted by RagingAzn628 View Post
What's the motherboard that you used to OC that high?

I used an asus P5Q SE PLUS with a P45 chipset to run @3.6. The P45 is the best chipset for OCing 775 CPUs. Im sure I could have OCed higher but that board only let the Vcore go up to 1.5. Most good 775 OCing boards will let you go up to 1.6-1.65.
Edited by Kirby1 - 4/15/11 at 1:16pm
    
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post #17 of 67
Quote:
Originally Posted by Kirby1 View Post
I used an asus P5Q SE PLUS with a P45 chipset to run @3.6. The P45 is the best chipset for OCing 775 CPUs.
He's running SLI, that chipset doesn't support SLI.
post #18 of 67
Quote:
Originally Posted by gnolnats View Post
He's running SLI, that chipset doesn't support SLI.
Oh yea good point.
    
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post #19 of 67
Quote:
Originally Posted by Kirby1 View Post
Oh yea good point.
This is kinda dumb, but since the P45's are so good at overclocking, maybe it's worth it for him to get a single card solution and get a P45.

Just throwing it out there..
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post #20 of 67
If I remember correctly, when you Crossfire or SLI, it does not combine the VRAM, but rather uses the RAM on the first card.

Moreover, I had my settings set to 380x9 with my RAM clocked at 760MHz for a 2:1 ratio. It worked marvelously for quite awhile. During the summer months though I downclocked to 3.33GHz because my temps were getting too high. To get from 3.33 to 3.42 the difference in voltage was 0.1V. So my temps went down a bit.

Also, doing a 3.0GHz overclock usually can be done on stock voltages for a Q6600 G0. But I imagine it would vary from chip to chip.

I suppose SLI would change the outcomes a bit too but give them a shot. Make sure you have your PCI frequency set at 100 too.
Edited by lkegley9 - 4/15/11 at 1:21pm
    
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