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Topic: Imminent Aneurysm Please Help. 5870's low hashrate, multiple issues. (Read 501 times)

newbie
Activity: 34
Merit: 0
go to the hospital.  an aneurysm is nothing you can get help for on an internet forum. 

Yeah.. thanks

Please forgive me if my sense of humor is ebbing low after 8hrs F%$#ing with these things.

sr. member
Activity: 420
Merit: 263
let's make a deal.
go to the hospital.  an aneurysm is nothing you can get help for on an internet forum. 
newbie
Activity: 34
Merit: 0
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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