Post
Topic
Board CPU/GPU Bitcoin mining hardware
Re: 400MH/s+ on a 5850?
by
n4l3hp
on 28/06/2011, 10:57:19 UTC
So GUIminer is saying I have broke through 400MH/sec on my 5850.

What do you guys think? Is this just a bug/quirk in the way guiminer updates the hashrate when multiple miners are running, or have I found a way to squeeze out an average of 400 MH/sec from a 5850 without a massively insane overclock? It runs stable if i dont try to move anything on screen Wink

My GPU settings are
-5870 Bios
-960 clock
-300 RAM
-1.162 Vc

I set up three phoenix instances. The first instance I set to

-k phatk DEVICE=0 VECTORS BFI_INT WORKSIZE=256 AGGRESSION=13  FASTLOOP=false
that worker was set with CPU affinity to use both CPU cores

Second instance:
-k phatk DEVICE=0 VECTORS BFI_INT WORKSIZE=256 AGGRESSION=8  FASTLOOP=false
that worker was set with CPU affinity to use CPU core #1

Third instance:
-k phatk DEVICE=0 VECTORS BFI_INT WORKSIZE=256 AGGRESSION=8  FASTLOOP=false
that worker was set with CPU affinity to use CPU core #2

When running, the MH/sec goes as low as 386 and as high as 412, but seems to average out at about 402 to 404

A screen grab of guiminer in operation, along with GPU-Z and Afterburner settings is here

http://www.b3tards.com/u/f6d22a29e775a1426924/wtf.jpg

This might seem like a cock length post, but i promise its not. I just want to know if this is a true hashrate or if GUIMiner has some kind of weirdness in calculating hashrates when multiple miners are running and hoped someone here would know.



I think that card isn't going to last very long. Good luck.

Based on what I've read in different forums of the BOINC community, the 5800 series have max temps of about 105 degrees celsius. Of course, steps must be taken to cool the card a lot better if the temps goes over 90 degrees.