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May 02, 2014, 07:35:02 PM |
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I have 5 r9 290x
Anyway long story short, 3 in one computer 2 in another.
About 3 weeks ago I stopped mining, prior to stopping all 5 cards were getting 750-890 kh/s scrypt; wu= 410-900 HW=0 per card, prior.
Now I am using the same cgminer and bat file, but the computer with 3, is only doing about 400kh/s a card
setx gpu_max_alloc_percent 100
cgminer --scrypt -o stratum+tcp://pool.com:3333 -u Name -p dfsdsdfsfs -d 0,1 -I 20 -w 512 --thread-concurrency 32765
Also, with the computer with 3 cards.. when i try to use 32765 Thread-con it says there is not enough buffer memory.. however on my PC with 2 i get no errors.. I have to put the Thread-con to 8192 on the 3 pc machine... cards have 4gb of DDR5
Specs for the 3 card PC
(was a personal computer of mine,but )
Windows 7 64 bit
16 GB of ram
1090t 3.2Ghz hexacore amd
120GB SSD
H80 corsair cooler
220mm and 140 mm fans blowing on gpu's with open case.
GPU Fans fluctuate depending on heat, capable of up to 4500-5k rpm per card
I use a fan controller, instead of setting it so, in cgminer -3.7.2
1200 watt gold psu
gpu-z reads the cards at about 217 watts at max per card. PSU about 4 months old, no signs that its failing.
I literally copied, the entire cgminer directory, over to the PC with 3.. and it still is saying there is not enough buffer... i have to lower it 8192... and that gives me around 400kh/s per card
AMD drivers are the same, across both systems both 13.12, both have sdk installed. I tried the new drivers.. still no good, catalyst and gpu-z both read the cards are 4gb
I did just notice that.. the intensity on my 2 card pc says 2, even though the bat says 20..
I am going to try to switch the cards around i guess.
see what happens.
Any advice would be greatly appreciated
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