Topic: Brand new rig fails to properly utilize it's two HD6950 (Read 1110 times)
I can't say what the problem was, but I am now running the exact same setup on Kubuntu, and I get 99% load on both cards and a decent 650MH with no overclocking.
Check that your not running 1 of the cards @ PCI-Ex 1 x in the BIOS
simple things first, are you pointing your miners at different cards? ie, when you run just polcbm it will tell you that you have to give it a device, usually 0 and 1. You then have to start each miner with a -d0 and a -d1 to use the second card. I like to open a separate terminal for each miner so I can watch them, and usually have 1 or 2 more open to watch temps, etc.
Also, if it's a dedicated miner (not a part time gamer) take out the xfire bridge, it doesn't help ( maybe even hinders.. ) mining.
edit:
now that I've thought about it and come back, I'm thinkin it is the xfire setup.. I'd start there by taking it out.
Also, if it's a dedicated miner (not a part time gamer) take out the xfire bridge, it doesn't help ( maybe even hinders.. ) mining.
edit:
now that I've thought about it and come back, I'm thinkin it is the xfire setup.. I'd start there by taking it out.
Looks like you only have one card set up - not 2.
Try running:
and restarting.
Try running:
Code:
aticonfig --initial=dual-head
Code:
Section "ServerLayout"
Identifier "aticonfig Layout"
Screen 0 "aticonfig-Screen[0]-0" 0 0
EndSection
Section "Module"
Load "glx"
EndSection
Section "Monitor"
Identifier "aticonfig-Monitor[0]-0"
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" "Generic Autodetecting Monitor"
Option "DPMS" "true"
EndSection
Section "Device"
Identifier "aticonfig-Device[0]-0"
Driver "fglrx"
BusID "PCI:1:0:0"
EndSection
Section "Screen"
Identifier "Default Screen"
DefaultDepth 24
EndSection
Section "Screen"
Identifier "aticonfig-Screen[0]-0"
Device "aticonfig-Device[0]-0"
Monitor "aticonfig-Monitor[0]-0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
EndSubSection
EndSection
Could you post your Xorg.conf? You can find it at /etc/X11/xorg.conf
The hardware:
MB: P8P67M Pro Newest bios
CPU: I3-2100
GPU: Asus 6950 1GB Factory bios, no overclocking
SSD, 6gb ram.
The problem:
When I run any miner (hashkill, phoenix, diablominer), or any combination of miners, I either get around 50-75% utilization of both cards, OR, I get 99% utilization of one card.
Basically, I either get sub-optimal performance from both cards, or I get expected performance from one card while the other is entirely starved. This happens at random. If I do get a stable 75%/75% from both cards, it will eventually (maybe after hours) turn into either 99%/0% or 0%/99%.
I am running 64-bit ubuntu, 11.04 and Stream SDK 2.4. The two PCIe slots the cards are connected to has x8 speeds according to the motherboard manual. I have installed one crossfire bridge (otherwise I can't use the 2nd card in linux). The temperatures are fine. My CPU utilization is almost nothing. Both cards easily do more than 300MH by themselves. I do not understand where the bottleneck is.
Any help with this would be highly appreciated. I'll gladly give 0.1-1btc tips to information that makes a difference.
MB: P8P67M Pro Newest bios
CPU: I3-2100
GPU: Asus 6950 1GB Factory bios, no overclocking
SSD, 6gb ram.
The problem:
When I run any miner (hashkill, phoenix, diablominer), or any combination of miners, I either get around 50-75% utilization of both cards, OR, I get 99% utilization of one card.
Basically, I either get sub-optimal performance from both cards, or I get expected performance from one card while the other is entirely starved. This happens at random. If I do get a stable 75%/75% from both cards, it will eventually (maybe after hours) turn into either 99%/0% or 0%/99%.
I am running 64-bit ubuntu, 11.04 and Stream SDK 2.4. The two PCIe slots the cards are connected to has x8 speeds according to the motherboard manual. I have installed one crossfire bridge (otherwise I can't use the 2nd card in linux). The temperatures are fine. My CPU utilization is almost nothing. Both cards easily do more than 300MH by themselves. I do not understand where the bottleneck is.
Any help with this would be highly appreciated. I'll gladly give 0.1-1btc tips to information that makes a difference.
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