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May 12, 2013, 11:36:06 AM Last edit: May 12, 2013, 01:28:20 PM by Bagpipe |
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Something more: when the card is cold, the submitted WU rate can be as high as 20/minute, it is sending work out like crazy. It is not directly related to the temperature on the GPU chip, but maybe to temperature of some other components.
At 52°C on the Tahiti Pro2, the whole card takes 180W from 230V net. As the temperature rises to 62-63°C, the power input too, to 191-192W.
I noticed this as I was modifying the cooling, that something else is changing the rate of work utility per MHash rate other than just the clock.
The most stable results are 1.380 to 1.500 WU per 100MHash/s. Just a coincidence of numbers?
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