Hello today i recieved my 2nd 780 lightning for sli. I did a slight overclock over +100 core and 200 memory to both. The comp then crashes halfway through a benchmark. The 2nd 780 now is at 100% constant fan speed and isn't being detected by the pc. I've tried both bios switches but no change.
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780 lightning problem
- Thread starter Mrnob
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Something similar happened to me with crossfire hd7970,but clear cmos helped.Check power cables connected to gpu.
Soldato
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- 5 Sep 2011
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Reseat the card. If still there DDU and reinstall driver. Come back if still there
Soldato
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Did you overvolt it? If so by how much on the offset. Seems odd but it could quite easily just have thrown the towel in and died on you. Make sure to try it on its own and in a different slot to rule out anything else. Different power cables and so on
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only ever touched the volts last week an that was only around 30mv but that was one day only and since then i set back to default. I did try it on my other system and get the same problem. Problem is in bios it boot sup at 100% fan speed with no display and the LEDS on the back don't light up either
Soldato
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- 5 Sep 2011
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It sounds dead but I never like saying that without testing myself. RMA time