CGMiner using 99% CPU on i7-3770 with dual ATI 5970's... need help :)

[Mognar]

Hi all,

Thanks in advance for your time and help! I'm new to mining so bear with me.

I turned my gaming pc into a mining rig. It's running an i7-3770, 16 gig mem and dual ATI 5970's. (not in crossfire)

I'm using Catalyst 11.11, SDk 2.1, 774/500 and I'm getting great hash's... 351 per core. The problem is that cgminer.exe is using 99% of the cpu. The first setup I used 11.10 without 2.1 (whatever is packages with 11.10) and the cpu was barely be hit.

The temps in the mid to upper 70's. I tried dropping the voltage down to 1k, but it kept crashing the OS.

I tried GUIminer and when using that with pcdol, the cpu hit is 13% per instance. I do get better rates with CGminer, so would like to stay with it. I'm using the default cgminer -0 http://pool:port -u username -p password -I 9 to launch CGMiner.

What can I do to get CGminer to not utilize the CPU?

Thanks!

Mog

[Mognar]

Anyone?

[Mognar]

Okay, so I reimaged, installed 11.10 and I'm using the included 2.5 SDK now and my CPU usage is down to 50%...

Any thoughts or suggestions on what might be causing the problem and on how I can get it to drop back down to 3-4%?