XFX 7970 Black Edition Non GHZ
This card is giving me some trouble. Best so far is 550KH/s with 1140 Clock and 1375 Memory (925/1375 Stock) The very second I adjust the Memory speed hash rate drops. Does not matter if I go up or down even 1 MHZ on the memory the hash rate drops. I have flashed the BIOS to with two different XFX GHZ edition Bios and the result is the same. I even tried flashing to the XFX 280x bios which was a mistake because the card wouldn't even start. Flashed back to the stock BIOS. Anyone experience this? I was thinking of trying another vendors BIOS but after my 280x BIOS crash I am leary to try as it is a pain to swich cards around to fix a crashed BIOS.
Anyway any tips or tricks to make this card work or any experience with BIOS flashing an XFX card to a Gigabyte, Sapphire or ASUS GHZ edition BIOS