Quote from: Etherion on September 28, 2016, 09:54:00 AM

Quote from: fredeq on September 28, 2016, 06:16:04 AM

Quote from: voidwalker on September 28, 2016, 12:33:17 AM

Quote from: Maicol792 on September 27, 2016, 10:48:53 PM

Quote from: voidwalker on September 27, 2016, 10:31:21 PM

Quote from: Maicol792 on September 27, 2016, 10:28:49 PM

If i run in claymore 7.1 my HD 7990 i have only 36 Mhs ... If i run on ethproxy+ethminer i have 50 mhs why this? Thanks

Because claymore reports the hash rate accurately.

I dont think this is the exactly problem ... There are other question i think ... Ethminer show costant 50 mhs and The HD 7990 working fine ... Whit ckaymore this card work many many to hard... And i cant find what is the problem ... And hashrate in solo or dual mode its equal for this GPU near 17+17 ... On ethminer show 50 or 25+25 mhs ... Huh

I am telling you that is EXACTLY the problem. It is a normal speed for hd 7990, it got slower over time mining ETH due to the dag file size increase. I had one and it had the exact same speed. You can use ethminer and see 50mh if it makes you feel better.

Void is correct. Your card is basically (2x)7970 and this card used to do 25, but now is doing 17 or less.
The question you should be asking is "Why ethminer shows incorrect 50 hashrate for my 7990" Wink

7990 is hit hard with every DAG increase. I started at 51M/h and now I am on 32.6(16.3 + 16.3) overclocking does help but not by much.

YES!!! "Why ethminer shows incorrect 50 hashrate for my 7990" thanks for help me in this question ;-) ;-) (i need to sell this hd 7990 if anyone interested contact me in PM .. i accept ETH ;-) )