Sapphire Radeon HD 6950 with TriXX

[PoLoMoTo]

I am overclocking my GPU to 908 core, and 1325 memory. When I run 3D Mark the display driver stops responding and recovers. The voltage is at 1100 should I raise that?

[criss_glitch666]

I'm wondering about my card, too.. only my problem is that my whole PC freezes up and I have to manually shut it down. Good luck on this!

[Drdeath]

Your overcocked too high

[PoLoMoTo]

Then when would I ever up the voltage?

[realneil]

Then when would I ever up the voltage?

I wouldn't do it because I've heard how easy it is to fry a video card as opposed to a cpu.
cpu's take it better, and will just stop working if you go too far. Video cards burn up.

[realneil]

Sorry,.......I have to say a little more here.

Your Sapphire card is one of the ones with a Dual BIOS switch on it. The function of that switch is not to OC your card. It's there to unlock extra shaders that approximate a 6970's configuration. Once unlocked, you get better performance out of your 6950 card. It's still not a 6970 and it will never be one. They make it close though,...and that's cool.

When 6950's were first introduced, people were unlocking them right and left,.....most of them (at first) would unlock with a BIOS flash to 6970 attributes and run like a 6970 does. Problem is that the PCB's were not designed to operate at the higher voltages and faster settings, and many of the cards failed. The card's electronics were never designed to do what everyone was doing with them.

So they burned up. Fried. Toasted. Crispy Critters.

Manufactures promptly disabled BIOS flashing on their cards to protect:
1. themselves from pissed-off customers demanding replacements,
2. the customers from themselves, (because it wasn't their fault and they weren't about to ~eat~ all of those cards that were abused by Johnny customer)
3. their reputations for quality,

Sapphire has created a true innovation with this switch. It's designed by them to unlock some shaders and give you enhanced performance, (within ~THEIR~ specifications) above what a 6950 can do, and approaching 6970 level performance. But you have flipped your switch, and ~then~ overclocked the card above and beyond Sapphire's limitations. I think that this is a recipe for disaster and you'll probably burn it up over time. Then you'll want them to replace the card for you. But that's not real fair is it?

OK, I'll get off my soapbox now.