Hi Everyone, For past time I have been facing a problem with my main PC. I have two R9 295x2 cards installed in this system on a platimax 1500w power supply. The system is running stable, but it is having a strange problem.
The first card with GPU1 and GPU2 is downclocking in patterns. It happens with both ethminer and qtminer. I overclocked the card to 1130mhz which it seems to handle easily, but it keeps downclocking to 300mhz. which results in a major hashrate drop. The pattern in which is happens is stable: after around 30 seconds it downclocks for about 6 seconds and so on. The strange thing is, that it only happens on one card. The other card is mining stable at 1130mhz.
The GPU load is stable at around 97%-100%. I use Catalyst 15.12 (happened on 15.7.1 also). The tool clockblock isn't working sadly.
I found out that it happens less frequently with the stock clocks. But even then, the issue is still there.
How could i resolve this issue? Your help is appreciated!