Safe Sapphire 6950 2gb Overclock

[CaptainAngel13]

Hello. I need some help overclocking my 6950 to get some more performance out of it. It is important to me that I do a safe overclock not only because I'm not experienced with overclocking and have never Oced a video card before but also because I'm on a seriously tight budget and don't wanna risk decreasing it's lifetime significantly and having to get a new one soon. This 6950 does not have a dual bios switch and cannot be upgraded to a 6970(from what I understand) which is also why a safe overclock is important to me. I don't mind doing it through Sapphire Trixx or the BIOS, I just need some comprehensible guide on how to do it and a recommendation on how much I should OC it while keeping it safe. Thanks in advance.

The card is 1.5-2 years old I may add and has been used for a mixture of heavy/light gaming. I'm currently playing COD BO 2, Assassins Creed 3 and Far Cry 3 at 1080p and would really like some more performance on the games. My board is a Gigabyte Z77 D3H, my PSU a Corsair VX550(41 amps on the 12V rail) and my cpu a stock i5 3570k.

 

[Ajay57]

Welcome to the forums my friend OK on the safe OC for your 6950 i will give you some of my own settings here. AJ.
1, I Would strongly advise you to OC using Trixx first!
2, Core CLK stock 800, OC is 875 safe max!
3, MEM CLK stock 1250 OC is 1325 safe max!
4, GPU VOLTS stock 1.100v OC 1.125 safe max!

Now i must stress these settings work with my 2x 6950's, but each card can be very different. So i would say a very little adjustment each time and then test it, but most of be very careful with the Voltage adjustment? Too much voltage can damage your card OK.

Oh and finally you can save your overclock settings in the Trixx it self, also your Fan settings as well.

 

[CaptainAngel13]

There seems to be a problem with Trixx. Every time I tweek anything the image goes all unstable and when i reboot it resets the core clock. Then if I try to play a game I get half the fps and the system is generally unstable. All I managed to do was overclock a bit on amd overdrive :/

 

[Pierre3400]

There seems to be a problem with Trixx. Every time I tweek anything the image goes all unstable and when i reboot it resets the core clock. Then if I try to play a game I get half the fps and the system is generally unstable. All I managed to do was overclock a bit on amd overdrive :/

Trying using MSI Afterburner, it will need a tweak to allow unlocked overclocking, but its not hard to do at all.

 

[Ajay57]

+1 Yes try MSI. AJ.