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I cannot seem to get my new 5870's above 275kh
I've tried everthing I can think of.
Right now they are running -I 18 -g 1 -w 256 --thread-concurrency 8000 --gpu-engine 776 --gpu-memclock 1296
That gets me a stable, hot, loud 275.
cgminer 3.7.2, ubuntu 13.10, AMD Catalyst 14.1
msi fm2-a85xa-g43, corsair ax850 and 750
Tried all and then only one card, on the board, on a riser, on a powered riser, on a powered usb riser, on every slot (cannot boot with any card in any way plugged into 2nd pcie16 slot, but I think thats a different issue), with a monitor, without a monitor....
Right now I have a 280x, a 270, and 2 x 5870 running stable for 12 hours.
The cards run on separate cgminers by type. Probably the 270 could run with the 5870's as they are both g-1, but now separate.
Additionally when the 5870's are running and I start another card, the 5870's stay right at 275kh, but the newly started card run's at about 2/3. If I start the other card first, say the 280x at about 730 kh, the 280x will drop to about 550kh when I start the 5870(s). But if I start the 270, the 280x is fine, and the 270 is fine. Same for the 270. It runs at 430kh. Stays at 430kh when I start the 280x. If I start one of the 5870's, with or without the 280x running, down to 350kh.
To sum it up. The 5870's run at a low hashrate, and they make my other cards run at a low hashrate? wth?
I'm going to take one of these and try it on a windows rig. After that I got nothin.
Someone help me out please!
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