max in montreal (OP)
|
|
August 20, 2011, 02:25:15 AM Last edit: August 20, 2011, 04:13:17 PM by max in montreal |
|
I have 4 cards on my MSI 890FXA-GD70. Using windows 7 32 bit. 5870 -->GPU 0 5970 -->GPU 1 and 2 5970 -->GPU 3 and 4 5970 -->GPU 5 and 6
I could mine with any 5 gpu, when I add the other 1 or 2 it will decrease the hash rate on the others. Is there a setting in the mobo bios that I should adjust?
Help me solve this problem and 2 bitcoins are yours for the taking!
|
|
|
|
|
|
The grue lurks in the darkest places of the earth. Its favorite diet is adventurers, but its insatiable appetite is tempered by its fear of light. No grue has ever been seen by the light of day, and few have survived its fearsome jaws to tell the tale.
|
|
|
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction.
|
BkkCoins
|
|
August 20, 2011, 03:46:19 AM |
|
I once had a similar problem. It seemed to be linked to too much cpu usage for me. When I reverted to 11.6 driver it went away and cards stopped affecting each other. If you seem to have high cpu usage and use later than 11.6 (which has a cpu bug) then reverting may help.
|
|
|
|
max in montreal (OP)
|
|
August 20, 2011, 05:33:51 AM |
|
Edited my post, I am using windows 7.
|
|
|
|
bcforum
|
|
August 20, 2011, 03:10:48 PM |
|
I could mine with any 5 gpu, when I add the other 1 or 2 it will decrease the hash rate on the others. Is there a setting in the mobo bios that I should adjust?
Check your resource monitor and see if you are: 1) running out of CPU 2) running out of memory 3) running out of network bandwidth (unlikely)
|
If you found this post useful, feel free to share the wealth: 1E35gTBmJzPNJ3v72DX4wu4YtvHTWqNRbM
|
|
|
max in montreal (OP)
|
|
August 20, 2011, 04:11:56 PM |
|
Yes the CPU is at 100%, but i thought this was a CCC bug. I am running windows 7, and do not want to switch to Linux, especially since CCC can now manage 8 GPU. The memory usage is not 100%.
|
|
|
|
k9quaint
Legendary
Offline
Activity: 1190
Merit: 1000
|
|
August 20, 2011, 04:57:56 PM |
|
There is a version of Catalyst drivers that do not have the 100% CPU bug. Catalyst version 11.6 works on LInux. On my windows box, I have driver version 8.861 from 5/24/2011 and it is barely using any CPU at all. I believe that driver is from the 11.6 Catalyst package as well.
|
Bitcoin is backed by the full faith and credit of YouTube comments.
|
|
|
Elder III
|
|
August 20, 2011, 05:15:23 PM |
|
Which drivers are you using? I find that the 11.6 drivers work the best; 11.6b if you need to be able to run more than 4... I have not done so well with 11.7 or 11.8 myself.
|
|
|
|
max in montreal (OP)
|
|
August 20, 2011, 05:18:20 PM |
|
There is a version of Catalyst drivers that do not have the 100% CPU bug. Catalyst version 11.6 works on LInux. On my windows box, I have driver version 8.861 from 5/24/2011 and it is barely using any CPU at all. I believe that driver is from the 11.6 Catalyst package as well.
What is the max GPU limit with these drivers?
|
|
|
|
max in montreal (OP)
|
|
August 20, 2011, 05:18:51 PM |
|
Which drivers are you using? I find that the 11.6 drivers work the best; 11.6b if you need to be able to run more than 4... I have not done so well with 11.7 or 11.8 myself.
I am using the latest, 11.8.
|
|
|
|
CanaryInTheMine
Donator
Legendary
Offline
Activity: 2352
Merit: 1060
between a rock and a block!
|
|
August 20, 2011, 06:22:19 PM |
|
I have 4 cards on my MSI 890FXA-GD70. Using windows 7 32 bit. 5870 -->GPU 0 5970 -->GPU 1 and 2 5970 -->GPU 3 and 4 5970 -->GPU 5 and 6
I could mine with any 5 gpu, when I add the other 1 or 2 it will decrease the hash rate on the others. Is there a setting in the mobo bios that I should adjust?
Help me solve this problem and 2 bitcoins are yours for the taking!
What are the clock/memory settings and what PSU do you have these connected to?
|
|
|
|
max in montreal (OP)
|
|
August 20, 2011, 06:44:33 PM |
|
In windows they are all at the defaults, I wanted to get them all running before I tweak.
I am using 2 PSU, one is an antec earthwatts 750, the other is an ultra x 3 1000 watt. 1000 watt is for 2 X 5970 and the 750 runs the mobo, 1 X 5970 and 1 X 5870.
Using Linuxcoin everything is seen and runs fine. So I think its not a mobo or power issue.
|
|
|
|
CanaryInTheMine
Donator
Legendary
Offline
Activity: 2352
Merit: 1060
between a rock and a block!
|
|
August 20, 2011, 06:48:59 PM |
|
In windows they are all at the defaults, I wanted to get them all running before I tweak.
I am using 2 PSU, one is an antec earthwatts 750, the other is an ultra x 3 1000 watt. 1000 watt is for 2 X 5970 and the 750 runs the mobo, 1 X 5970 and 1 X 5870.
Using Linuxcoin everything is seen and runs fine. So I think its not a mobo or power issue.
uninstall CCC. you only need the drivers and SDK.
|
|
|
|
max in montreal (OP)
|
|
August 20, 2011, 08:18:59 PM |
|
uninstalling ccc did not help. I am going to install 11.6b.
|
|
|
|
CanaryInTheMine
Donator
Legendary
Offline
Activity: 2352
Merit: 1060
between a rock and a block!
|
|
August 20, 2011, 08:24:32 PM |
|
uninstalling ccc did not help. I am going to install 11.6b.
if your CPU is multicore, try setting affinity of miners to different cores. iff this is related to CPU issues.
|
|
|
|
|
CanaryInTheMine
Donator
Legendary
Offline
Activity: 2352
Merit: 1060
between a rock and a block!
|
|
August 20, 2011, 08:34:54 PM |
|
sempron 140
ohhhh.... unless you have a bit more powerfull chip to at least try to rule out if cpu is an issue i'm not sure what else to suggest... the CPU bug is nasty....
|
|
|
|
k9quaint
Legendary
Offline
Activity: 1190
Merit: 1000
|
|
August 20, 2011, 08:42:10 PM |
|
Change your drivers. Try 11.6. Make sure you uninstall the current drivers before you install the next version.
|
Bitcoin is backed by the full faith and credit of YouTube comments.
|
|
|
max in montreal (OP)
|
|
August 20, 2011, 08:51:07 PM |
|
11.6b can only see 4 gpu...
|
|
|
|
k9quaint
Legendary
Offline
Activity: 1190
Merit: 1000
|
|
August 20, 2011, 09:26:48 PM |
|
11.6b can only see 4 gpu... Do you have dummy plugs installed on all the cards?
|
Bitcoin is backed by the full faith and credit of YouTube comments.
|
|
|
max in montreal (OP)
|
|
August 20, 2011, 10:22:36 PM |
|
on 3 cards yes, the 4th is my monitor. I can see all cards in CCC.
|
|
|
|
|