I've noticed that problems occur across the motherboard. My test (-d 0, etc) is to shut off a bad card and see if the other cards do not remain at speed.
my setup: I have 2 cards and each has 2 gpus so I have 4 gpus
command line: ./cgminer .... -d 0 -d 1 -d 2
but not -d 3 so the last one doesn't come on.
Then I see if the other three remain stable. IF they do not i try another combination of 3 like: -d 0 -d 1 -d 3 (so not running -d 2). By testing the cards in this way I can determine if a GPU is causing problems. My experience has been that I can get 3 out of 4 gpus stable (at 260 each) which is better than all 4 running at 145 ish. And turning off a bad gpu through this method seems to allow me to keep the "good" gpu's operating at full speed. time to ship back some more cards....
Topic: Terrible hashrates on my 7970's... (Read 1139 times)
it's always heat. or a failing chip/mb.
when my cards start they mine beautifully, then after 10 minutes they can crap out. so I identify the crap cards by running:
-d 0
-d 1
etc on the command line.
Then I turn off the card that is causing problems (usually a fan and overheating).
then i mine like a king. (or a viceroy).
I was running my LTC 7970 at Powertune: +20% and the temps were still in the 60C, so it's not heat. It continues to mine, but just can't get the hashrate up there like I know other people are. when my cards start they mine beautifully, then after 10 minutes they can crap out. so I identify the crap cards by running:
-d 0
-d 1
etc on the command line.
Then I turn off the card that is causing problems (usually a fan and overheating).
then i mine like a king. (or a viceroy).
it's always heat. or a failing chip/mb.
when my cards start they mine beautifully, then after 10 minutes they can crap out. so I identify the crap cards by running:
-d 0
-d 1
etc on the command line.
Then I turn off the card that is causing problems (usually a fan and overheating).
then i mine like a king. (or a viceroy).
when my cards start they mine beautifully, then after 10 minutes they can crap out. so I identify the crap cards by running:
-d 0
-d 1
etc on the command line.
Then I turn off the card that is causing problems (usually a fan and overheating).
then i mine like a king. (or a viceroy).
ok ill check that out and get back to you ... please stay updated on this post! I would really appreciate the help!
LTCs are a bitch. Like a really temperamental bitch. The same settings on two identical computers can yield totally different results. I tried it once, and I couldn't get my 7970 above 580KH/s, even following CK's guide for tweaking.
That said, CGMiner has 2 READMEs, 1 for the program, and one for SCRYPT. The second one has suggestions and a guide for tweaking your settings.
That said, CGMiner has 2 READMEs, 1 for the program, and one for SCRYPT. The second one has suggestions and a guide for tweaking your settings.
I have read the manual multiple times... im mining litecoins but it should be around 700 KH/s
my settings were listed as set by other users but im still getting the same bad hashrates...
my settings were listed as set by other users but im still getting the same bad hashrates...
BumP:
can someone please help
start reading the manual of cgminer, specifically the latest version. can someone please help
Are you mining litecoins or bitcoins?
From what I see you are mining litecoins. If so, I *think* that number is fine.
EDIT:
I'd have to test on my 7970 to see what I get. I'm getting 685MH/s mining BTC. I thought the LTC process was about 1000x slower.
From what I see you are mining litecoins. If so, I *think* that number is fine.
EDIT:
I'd have to test on my 7970 to see what I get. I'm getting 685MH/s mining BTC. I thought the LTC process was about 1000x slower.
BumP:
can someone please help
can someone please help
Hey guys, I just installed 2 7970's yesterday and actually broke my 7950 in the same day... but thats a different story...
My problem is i finally after months got CGMiner to work! Got the AMD SDK and most recent version of Catalyst. However with the 2 cards together each is getting about 380 Kh/s
I took screenshots for your convenience.
CGMiner:
CGMiner Settings:
Catalyst Control Center:
If im missing anything please let me know!!
I still have 2 more 7970's and 1 7950 on the way
By the way I did post on the CGminer thread... anddd people just posted past me disregarding it so im bringing it to my own thread.
Thank you very much.
My problem is i finally after months got CGMiner to work! Got the AMD SDK and most recent version of Catalyst. However with the 2 cards together each is getting about 380 Kh/s
I took screenshots for your convenience.
CGMiner:
CGMiner Settings:
Catalyst Control Center:
If im missing anything please let me know!!
I still have 2 more 7970's and 1 7950 on the way
By the way I did post on the CGminer thread... anddd people just posted past me disregarding it so im bringing it to my own thread.
Thank you very much.
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