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April 30, 2013, 06:52:26 AM |
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These Asus 5770 CUcore cards really pretty good cards. I've been using two of them for a while mining BTC 24/7 until one just recently stopped outputting video and displayed only vertical rainbow lines. It still mines, but no video and no adjusting voltage or clock speeds anymore. I was pretty hard on them and the one that broke was running at around 95C (stuck in the top of a closed case) for a while.
Some people say the cooler is bad on these cards, but a great way to improve it is to remove the plastic shroud over the heatsink. This requires dismounting the heatsink and removing four screws. It's easy to do and drops the temp.
Card is voltage unlocked (0.95v to 1.2v) and you can adjust the core clock from 600Mhz to 1200Mhz and the mem clock from 150Mhz to 1445Mhz.
I can get 200Mhash out of them by dropping the mem clock to 150Mhz, raising the core clock to 900Mhz and dropping the voltage to 1.05v. In open air the temps are under 70C.
Build quality of the cards are great too. Worst thing is the cooler, but once you modify it, it's really not that bad.
If I hadn't just purchased some other video cards earlier, I'd try to buy them off the OP for the right price.
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