EVGA 8600GT Overclocking Guide

December 21, 2007

GPU Overclocking Guide

Disclaimer: Game and Tech Reviews is NOT responsible for any damage to your components.

So, you’ve bought a really low budget Directx 10 card? Wanna squeeze every last ounce of performance out of it? You bet you do! You are gonna need ATITool to do the overclocking. You can find a download here: http://www.techpowerup.com/atitool/ . Take a moment and get used to the program. nTune can also be used to overclock; and, can be easily accessed by right clicking on the desktop and selecting “NVIDIA Control Panel”, choosing the “Performance” tab, and then by clicking on “View System Information.” This also comes in handy because you can manually turn the stock fan to the desired speed. Check your card stats out with GPU-z available for download here: http://www.techpowerup.com/downloads/896/mirrors.php .

So, what exactly are we doing here? Well, a graphic card works using the same basic parts as a CPU does, only it uses different architecture. It has a clock speed for the processor or the core. And a clock speed for the RAM or memory. For the 8600GT, the core comes at 540MHz and the memory comes at 700MHz. By using the sliders on ATITool, I was able to get mine to a very stable 710/750. A higher clock speed is better than a higher memory speed. But, as a general rule of thumb the memory should be equal to or greater than the core frequency. You can use the auto finders to get a general estimate of what your card will do. But, I really recommend you do it manually. Scan for artifacts to test stability, and I also recommend using a 3dMark program. My overclock boosted my score 1000 points. Expect crashes, snow, and a weird screen flashes. Just restart and try again. Don’t be alarmed if it doesn’t start right back up again. This IS normal. Just turn it off, wait a few seconds, and try again. I really recommend you have proper cooling and do NOT exceed temperatures of over 70C. I suggest you invest in some decent cooling if you wanna push it really high. Every card overclocks differently. And, you at some point will hit a wall because of voltage. There are other guides out there, but they require soldering a resistor on to your card and/or shading in parts with a pencil. I chose not a write a guide on this because its way to risky and plus it would void my lovely warranty. And, I can’t afford to not be eligible for the “Step up” plan.

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