Originally posted by M@GOid
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That's weird you're getting parts that fail so easily... The only GPU I ever had that died on me was an Nvidia 7900 GTO, due to water damage. And even then, it still worked, as long as you didn't use up all of it's very-limited 256MB of VRAM. What temperatures are you typically getting on your GPUs? My 290 practically never exceeds 65C, though it is slightly undervolted.
I've always been wary of gaming GPUs powered over PCIe. There really isn't much power they're able to feed from, especially if you have any other 12v devices attached to the motherboard. I say "gaming GPUs" because office GPUs don't demand as much power, or at least not extensively.
I'm not aware of any situation where powering a GPU over PCIe has proven to be problematic, I'm just saying that if you care about longevity, that kind of setup is putting a lot of stress on the 24-pin ATX connector and the motherboard traces.
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