Bitcoin mining underclock
There's this guy on ebay currently selling off a ridiculous amount of used HD 7970s, mostly reference cards. He was using them all in a "distributed computing project, " which was bitcoin mining, for a period of less than 2 months. He claims they were undervolted and always ran below 70C, but does admit that they were mining for 24 hours a day.I'm looking for a reference HD 7970 that I can water cool and overclock to the max. The reason I want to buy one from this guy is because he has tested and labeled the ASIC quality and stock voltage of each and every card. The particular one I'm looking at has a 82.9% ASIC score and a 1.05v default voltage, and it supposedly is one of the cards that run cooler and draw less power than most of the other 7970s he's selling (and therefore he wants $5 extra for this one).
The card is in perfect working condition right now, but I'm nervous about buying a GPU that was used for mining 24/7 for up to 2 months. Even if it was under-volted and kept below 70C, is there any chance the GPU would have been degraded from running 24/7? Would it possibly have reduced the GPU's overclock-ability?
Source: www.overclock.net
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