Author

Topic: Radeon 7990 hardware errors (Read 527 times)

hero member
Activity: 896
Merit: 1000
February 26, 2014, 07:31:57 AM
#6
Just reduce the core frequency for a few MHz. You can also reduce the core voltage to around 1.05V.
newbie
Activity: 59
Merit: 0
February 26, 2014, 12:26:00 AM
#5
I'm having the exact same issue on one core, it's throwing HW errors... the other 3 cards are fine.


Config;

setx GPU_MAX_ALLOC_PERCENT 100
color 02
cgminer.exe --scrypt -o stratum+tcp://fr.dgc.theblocksfactory.com:3338 -u abc -p x -I 13 -w 256 --thread-concurrency 8192 -g 2 --gpu-fan 100

I've set the voltage on the cards to 1150, even at stock, it throws HW error.
full member
Activity: 198
Merit: 100
Brony Bitcoin, Litecoin Miner
February 08, 2014, 04:49:20 PM
#4
Have you tried a different powertune? like 20


I never get HW errors with 7970 because I never set my powertune... in any case tried 20 or leave the powertune alone, meaning delete the --gpu-powertune all together.


7990 is basically 2x 7970 so tried out  powertune 20 or leave powertune out of the argument.
newbie
Activity: 30
Merit: 0
February 08, 2014, 04:36:12 PM
#3
I use the following arguments:  -I 13 -g 2 -w 256 --thread-concurrency 8192 --gpu-powertune 10.
full member
Activity: 198
Merit: 100
Brony Bitcoin, Litecoin Miner
February 08, 2014, 04:30:27 PM
#2
What is your intensity and thread concurrency?
newbie
Activity: 30
Merit: 0
February 08, 2014, 04:15:31 PM
#1
I have 2x7990 in a rig. One core throws approximately one hw error per hour. Is it a problem and what can be a reason? Here is my cgminer screenshot http://prntscr.com/2qpk0l
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