Tune, tune, and re-tune!!
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[quote name=“uncle_muddy” post=“42049” timestamp=“1386597640”]
I must admit that once I had hit the 615Kh/s mark, and everything I seamed to do was making things either much worse or not making any difference I was starting to think that was the best I was going to get. But a little more perseverance has me at steady 718Kh/sI have noticed that after a while the blowers start to slow down, and the temp stays around the same. So I’m wondering what’s going on there, or is it just as things stabilise a little?
Just had a little problem and had to restart a couple of things here, so can’t tell you what it had got down to but here are the numbers on restart:-
Load: 99%
Fan: 100% (3279)
Temp: 63.0 c
@ the wall: 440WI will leave it all alone for a couple of hours now (I have some work to do for my real job :( ) and then take a few more reading and see if once it has settled again, the power consumption comes down at all.
UM
[/quote]My fans do the same thing, slow, it gets hot, fan power up high, then it balances out and keep the temp pretty stable.
I’m also from the UK, but currently in California, it’s a little “cold” here for my American wife, so we’re appreciating the extra heat lol.
Cheers for sharing your info, I have 2x 7950, and tweaking makes a big diff for sure. I’ve got mine up to 660kh/s each right now. Hoping to get up to 700kh/s after a bit more tweaking, but like yourself, I better do some real work haha.
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Can you copy and paste your cgminer window? I have to see it to believe your are at -I 20 without any HW errors
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I didn’t say no hardware errors, but then I don’t know how to check…
But heres a couple of screen grabs for you to take a look at, if you can let me know where I would see hardware errors that would be grand :)
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Let it run for a while. you see the HW on those pictures you sent me? The HW: 0 part… if the 0 goes up thats a hardware error. Normally 7970s cannot go beyond -I 13 without getting tons of these.
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OK, thanks for the explanation. do these numbers get reset every time I disconnect from the screen and then resume it?
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no it shouldnt. Whats your hashrate reading on the pool’s website? is it relatively close to your actual hashrate? if its drastically lower thats also a sign.
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[quote name=“uncle_muddy” post=“42023” timestamp=“1386592108”]
“intensity” : “20”
[/quote]Weeeee! Good luck.
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Hash rate on the pool is pretty close to the rate reported in cgminer 8hrs mining and no HW errors reported yet!
[quote name=“Tuck Fheman” post=“42232” timestamp=“1386626386”]
[quote author=uncle_muddy link=topic=5720.msg42023#msg42023 date=1386592108]
“intensity” : “20”
[/quote]Weeeee! Good luck.
[/quote]Is that a good luck as in I’ll be lucky to get away without HW errors for long or as in I’ll be lucky not to blow something up?
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[quote name=“uncle_muddy” post=“42259” timestamp=“1386629105”]
Is that a good luck as in I’ll be lucky to get away without HW errors for long or as in I’ll be lucky not to blow something up?
[/quote]Both. ;)
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I have just put mine back to default settings on clock and men speed as last week a big spark flew out of one of the power connectors going to a card!
Left the card off for a day or 2 but then popped it back and been running a week with no problems. At standard settings i get 595 khash/s
I use GUi miner with GPU 7950 high settings but tone down the intensity to 19 on two cards and 18 on the other as this one gets extra hot for some reason.
Its stable so leave it there, never tried the other mining software as is command driven and not had chance to get head around it…?
7950’s 1.8 Mhash/s and stable so happy with that
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i never run -I 20 but -I 19 is normal on many 7950s.
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OK so a few more numbers from this morning to see how she’s holding up…
No hardware errors reported after running for 8Hrs
Load: 99%
Fan: 67% (2968)
Temp: 63.0 c
@ the wall: 430WBut I will admit, I have just had to do a bit of sorting out in the office as SWMBO is turning up later, and as part of this I have disabled everything not being used in the BIOS and removed the HDD that was connected as I’m running of a USB stick so that might be the 10W difference.
[quote name=“angloblaxon” post=“42337” timestamp=“1386644346”]
i never run -I 20 but -I 19 is normal on many 7950s.
[/quote]I’m beginning to feel that you guys are trying to tell me something here and maybe I should drop down to I=19 and lose the extra 16Kh/s the I=20 is giving me to prolong the life of the setup.
UM