post #11 of 11
I have two Asus GTX 460 and they are overclocked from the factory to 675MHz. After much testing and running 24/7 on water, I've found that the max 100% long term stable overclock is 794 MHz.

KG0Sm.jpg

On air, I ran them with a profile that would hit 100% fan speed at 70c for burnin before putting the water blocks on them.

Mine can go 804MHz or so but that leaves no headroom. I suspect many of these so called "Super Clock" tests really don't work well long term. You can crank the clocks way up, doesn't mean they will work properly or reliably... and I don't believe most of the OC data I see on GPU's that have no long term tests run.

Using OCCT with error checking, the max I could get was about 824MHz... but you have to let it run for hours/days... even then, crunching BOINC tasks strain the GPU a lot more with some tasks, so the eventual clock ended up 794MHZ. 4 months running this speed has produced zero errors in crunching or games.

This final 794MHz is 10MHz below the maximum long term 100% loaded stable 24/7 for weeks 804MHz value I eventually obtained. I discovered the memory had about zero room to overclock as well so it is always stock (OC'ed already) speed.

All of the above is run with GPU temps never exceeding 78c on air and never over 55c on water at 1.100 volts.

So, as always, YMMV.

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PS: Click on my "Proof Intel 950" and you can see the specs at 798MHz.
Edited by Tex1954 - 7/20/11 at 7:13am
Blue Beast
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Blue Beast
(13 items)
 
  
CPUMotherboardGraphicsRAM
W3670 4.0 GHz (HT On) 1.345v 24/7 Asus P6X58D Premium DUAL EVGA GTX 560 Ti SC 1G in SLI 12G Corsair Dominator GT2000MHz 
Hard DriveOptical DriveOSMonitor
Kingston V300 120G SSD, 2x 1TB Barracuda HD's LG BlueRay/LightScribe Burner Windows 7 Pro 64Bit 3x24", 1x22" LCD 
KeyboardPowerCaseMouse
Wireless Logitech K320 ULTRA X4 1200W Custom Danger Den LDR-29 Wireless Logitech M310 
Mouse Pad
Custom 
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Reply