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April 25, 2013, 11:02:50 PM |
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Hello,
I have a PowerColor 7870 Tahiti. I use CGMINER 2.11. When I mine LTC, this card goes until I stop it. The card runs with default settings for now, as I have been running into issues mining BTC w/ the same miner.
During LTC, the card is getting to 82 Celsius. That seems high to me, but it keeps going, so I don't mind. Once I switch to BTC, the temp goes up, like usual, stays about the same. However, it will end up with a DEAD result in the hash. If I change to the guiminer, using openCL, it eventually gives me a 'connection problem'.
When I get these issues, I am able to re-start the process instantly. Unfortunately, these are mining rigs, so I set them to be un-manned through the day. Suspecting I was having a driver problem, I rolled back the driver from the current beta (13.3?) to the prior. Same problem. These issues started w/ my Win8 system. So, I changed to a Win7 box, same problem.
I have also purchased a new PSU, thinking (hoping) that the problem was with a bad powerrail or something, I was wrong. So, I am stuck only mining LTC (which isn't bad) but I would like the freedom. Do you all think its a bad video card? Or is there something SO different about the way this card calculates scrypt vs sha256?
This card is brand new....but I'm at a loss.
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