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Old 02-26-08, 02:40 PM   #1
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Join Date: Nov 2006
Location: Ontario, Canada
Posts: 703
Default Increasing Video Card Voltage

I've never ventured into the territory past overclocking a video card's gpu and vram via software before.

Currently, my 8800 GT's seem to be stable at around 710mhz core. Anything past that artifacts. I played around with increasing the voltage to 1.1v using a bios flash. I was able to reach 760mhz core without errors with some basic testing and benching. My memory is stuck somewhere between 950 - 1000mhz. Haven't found the sweet spot yet.

With the 1.1v and 760 core my temps never passed 44c (Using dual orb, plus there is a 120mm case fan blowing directly onto the cards). Temp wise I know I am fine.

As long as I keep the temps reasonable. Is there much of a risk with the increased voltage and high clock speeds? Is it the same idea as a cpu? A properly overclocked cpu usually only cuts a very short time off of its life span. GPU's on the other hand, I have no expierence with in this respect. If it is going to be a trade off of potentially frying my gpu not too far down the road for an extra 50 mhz increase. I will take the lower clock speeds. But if there is a very small chance, the same with overclocking my E6400. I'll go for the higher speeds
E6400 @ 3200 mhz (400x8) 1.45v || 2x 8800 GT || OCZ 600Watt sli || 22" LG Flatron
2x1GB Apacer PC2-6400 @ 850mhz 4-4-4-15 || Asus P5N32-E Sli Plus || Zalman 9500 AT || 200GB SATA / 320GB SATA WD HD

3D Mark 06: 12461 || 3D Mark 05: 18397 || 3D Mark 03: 40149
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