Issues With Low Clock Speed - 5x 7950's
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Hey all. I’ve had a rig going for over 16 hours straight with no problems. All of a sudden, the computer crashed and had to be restarted. Now when CGMiner is loaded, one of the cards refuses to go any higher than 500 MHz core, 150 MHz mem and 0.97 VDDC.
I’ve set up the same settings for all five cards in CGMiner. All four of the others take but this one for some reason will not. Restarted the PC multiple times and tried other things as well. Upon changing its clock speeds, they instantly pop back to the 500/150 again. It is also worth noting that it takes this specific card around 5-10 seconds after the rest are booted up before it does anything (the others will already be hashing while it still says 0).
The card in question is actually the second (#1, if you go based on 0,1,2,3,4).
Does anyone else have experience with this happening? Everything was going great for 16+ hours before this happened. No settings have been changed either. If it helps, I’ve been using the same setup for the past two weeks and this is the first time I’ve run into it and can’t figure out what to do to fix it.
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It’s AMD ZeroCore at work. Plug your monitor into the troublesome card for a few seconds - long enough to see the output.
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[quote name=“capriciousmike” post=“21104” timestamp=“1373477071”]
It’s AMD ZeroCore at work. Plug your monitor into the troublesome card for a few seconds - long enough to see the output.
[/quote]I figured that’s what it was. The guy that’s hosting my miner kept telling me that I “changed some settings” and now he can’t fix it because I broke it when I changed pools a couple days ago.
I read that this has been an issue for far longer than BTC has even been around (I found threads dating back to 2007 with people complaining about the same issues) but he was adamant that I broke it because it “has never happened before” and he throws around the fact that he runs over 20 rigs to justify why his word is factual.
Sadly, I don’t have physical access to the machine so I can’t even force him to give something like this a try because he doesn’t believe that it’s not me that broke it.
gg…