Hey,
I recently upgraded to a GTX 970 (from a GTX 580). Ever since then my PC has been freezing, in an odd pattern. It typically works fine for 1-3 hours, then freezes (screen freezes on whatever it was on, no response from mouse/keyboard, sound dies). Upon reboot it will freeze again after only a few minutes, even when only used to open Chrome. When left alone for the rest of the day before trying again it goes back to taking >1 hour to crash again.
The initial freeze seems somewhat correlated to the level of work its doing. It's usually been freezing during Dragon Age Inquisition, as that's the game I've been trying to play most, but it also froze in Civ V. With DA:I I've played for nearly an hour before a freeze, and ~5 minutes before a freeze.
I've updated the drivers. I thought maybe it was a heat problem, which to me would explain why it was quick to crash again after the first time (still being hot), but the GPU isn't hot to the touch after it crashes, the fans aren't straining themselves, and the monitoring program isn't showing it getting particularly hot (highest, I think, was 65-70 degrees).
So then I figured maybe it was a defective card, and since I got it through Amazon returning & getting a replacement was easy and took only 24 hours. The second card is freezing in exactly the same way.
And then I ran out of ideas!
Has anyone got any idea what could be causing this? Thanks very much in advance.
I recently upgraded to a GTX 970 (from a GTX 580). Ever since then my PC has been freezing, in an odd pattern. It typically works fine for 1-3 hours, then freezes (screen freezes on whatever it was on, no response from mouse/keyboard, sound dies). Upon reboot it will freeze again after only a few minutes, even when only used to open Chrome. When left alone for the rest of the day before trying again it goes back to taking >1 hour to crash again.
The initial freeze seems somewhat correlated to the level of work its doing. It's usually been freezing during Dragon Age Inquisition, as that's the game I've been trying to play most, but it also froze in Civ V. With DA:I I've played for nearly an hour before a freeze, and ~5 minutes before a freeze.
I've updated the drivers. I thought maybe it was a heat problem, which to me would explain why it was quick to crash again after the first time (still being hot), but the GPU isn't hot to the touch after it crashes, the fans aren't straining themselves, and the monitoring program isn't showing it getting particularly hot (highest, I think, was 65-70 degrees).
So then I figured maybe it was a defective card, and since I got it through Amazon returning & getting a replacement was easy and took only 24 hours. The second card is freezing in exactly the same way.
And then I ran out of ideas!
Has anyone got any idea what could be causing this? Thanks very much in advance.
But yeah, one 6-pin output on the power supply, using a ribbon that came with the power supply that splits into a 6-pin and an 8-pin. This was fine for my old card with its one 6-pin, one 8-pin requirement. Though as it turned out (I didn't think to check in advance) the new card has two 6-pin slots, so I bodged it a bit by using an 8-to-6+2 converter I had lying around. 
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