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my 6870's dying?

post #1 of 52
Thread Starter 
They were stable at 1000/1100 with 1.275V.

now i keep getting hardlock up's ( i have to do a hard reset ). at anything less then that they simply crash the game. and more then 1.275 and i 'Technically' get a bsod only with out the blue screen. i see distorted colors on the top of the screen and a sound loop followed by a restart.

And on top of that i think it may be voltage degradation. they are sandwiched and the top card get's 81-85c bottom one 75c top's.

Bottom line: i cant get them re-stable at 1000MHZ core and 1100 Memory. and they were Previously. what happned to make this occur?
    
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post #2 of 52
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post #3 of 52
I wouldn't think this was an issue because your 850 has plenty of wattage and amps, or so I would think, to run two of those cards.

However, I've only had this happen when my power supply wasn't powerful enough. I couldn't overclock my video card or my PC would just crash without a blue screen when I had my 460 watt. I bought a 650 watt Corsair and it never happens.

So I'm "assuming" it has "something" to do with how much power it's getting.

Edit: Did you update any drivers since when it was working?
post #4 of 52
Thread Starter 
it apply's to my i7 rig. check it out.

It has a high quality 1200W in it.


Quote:
Originally Posted by Khaotik55 View Post
I wouldn't think this was an issue because your 850 has plenty of wattage and amps, or so I would think, to run two of those cards.

However, I've only had this happen when my power supply wasn't powerful enough. I couldn't overclock my video card or my PC would just crash without a blue screen when I had my 460 watt. I bought a 650 watt Corsair and it never happens.

So I'm "assuming" it has "something" to do with how much power it's getting.
    
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post #5 of 52
I may not know what I'm talking about but...isn't 1.275v a bit high for ANY card?
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post #6 of 52
no, i know alot of people on here goto the max of 1.3v for 24/7 OC just fine.
post #7 of 52
Quote:
Originally Posted by luckypunk View Post
no, i know alot of people on here goto the max of 1.3v for 24/7 OC just fine.
On air, CFX/SLI, one on top of the other? For reals?
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post #8 of 52
Quote:
Originally Posted by luckypunk View Post
no, i know alot of people on here goto the max of 1.3v for 24/7 OC just fine.
On Air? Doesn't seem like it would be worth upping voltage that much on an OC when you have 2 cards.
     
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post #9 of 52
OH, to my knowledge they were using 1 single card, with that in mind i take back my statement of 1.3v being safe for a crossfire pair
post #10 of 52
^^I've had my 6950s unlocked on air, w/o voltage OC on top of each other and it was STUPID hot.
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