cooper (OP)
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December 15, 2011, 04:35:37 AM |
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my setup is a gigabyte hd 6950 running gpu @ 945 memory @ 750... i was getting 390 to 450 mhash. i was gaming and experienced a crash. now no matteer what i do i can only get around 300 even overclocked and at stock i only get around 292 mhash. stock this card should get like 350. im using phoenix miner with the command phoenix.exe -u http://user.user.pass@pool.ABCPool.co:8332/ -k phatk2 -q 2 DEVICE=0 VECTORS AGGRESSION=10 BFI_INT Im on windows 7 x64, im running latest catalyst drivers from ati, and amd app sdk 2.5. I did a fresh install on seperate hard drive with same drivers and settings and i get the same numbers.... is something wrong wtih my card??? this is so nuts, card is only 3 months old. i have scanned with hitman/malwarebytes/combofix/tdss killer. i dont seem to have any infection and the fact i tested this on a clean install really blows my mind. any help on why my card is running 100 mhashs slower than it was would be greatly appreciated.
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real_psyence
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December 15, 2011, 06:06:03 AM |
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What symptoms were the "crash" - i.e. did you system hard-freeze? Display corruption? There's a decent chance it overheated. check the fans to clear them of dust and see if you ATI software will allow you to alter the fan speed. Possible fan dead...
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cooper (OP)
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December 15, 2011, 06:34:22 AM |
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what happenned was i accidently left my settings to bitcoin mining overclock settings and ran battlefield 3, yes it was a hard crash.
i have blown out the fans and heatsink the fans are all spinning i have tried manually making them go @ 100 percent. same thing.
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cooper (OP)
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December 15, 2011, 07:11:02 AM |
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ok just rechecked. there was definitely a sata cable stuck in the first fan... cant believe i overlooked that
i unstalled drivers... and reinstalled but im still getting the same @ stock 290 mhash.... i removed EVERYTHING AMD, even the profile under app data. i just want my old speeds back ...
i did have a fan stuck for maybe 1 month and didnt realize it. i deleted and reinstalled drivers..... what else can i do to fix this?
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RyNinDaCleM
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December 15, 2011, 08:37:00 AM |
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So you have unlocked shaders? Which pool do you use? And, is that where you are getting hashrate from? 450Mh/s is impossible with a stock (no mod) 6950. If you get your hashrate from the pool stats page, that is an estimation, and will vary.
Does your card run at 99%?
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cooper (OP)
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December 15, 2011, 02:58:07 PM Last edit: December 15, 2011, 03:40:24 PM by cooper |
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abcpool.co is what i use, i didnt mean 450, i dont know why i typed that i meant 350-400 mhash. the numbber is from the window phoenix is running in. i know that the pool reports higher than my actual rate, but im talking about whats reported locally.
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cooper (OP)
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December 16, 2011, 04:41:12 AM |
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i still cant get back to over 315. stock this card runs the gpu @ 870. it used to get 350 mhash not overclocked what can i do? or is it rma time?
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cooper (OP)
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December 21, 2011, 01:43:40 AM |
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yes my card is @ 99 percent, its runninnng @ 310 mhash clocked at 930 mhz.... wtf is going on stock this card got 350, i was able to get 390 with card clocked @ 930. plz this really sucks
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crosby
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December 22, 2011, 03:39:41 AM |
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try a different miner, I use cgminer.exe with -g 10 and intensity 9
I think i have the same 1 GB gigabyte 6950/OC running @ 940 Mhz getting ~388 Mhash
please let me know if you have good news
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deepceleron
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December 22, 2011, 07:02:12 AM |
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Im on windows 7 x64, im running latest catalyst drivers from ati, and amd app sdk 2.5.
This is your problem, drivers 11.12 and 12.1 include a new sdk that overwrites the old one and doesn't uninstall, and causes a performance drop. Follow the instructions here: https://bitcointalk.org/index.php?topic=54693.msg651989#msg651989
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andylam
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December 22, 2011, 06:31:41 PM |
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what are mhash sorry i am a noob -___- ~andy ^_^
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deepceleron
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December 22, 2011, 07:04:03 PM |
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what are mhash sorry i am a noob -___- ~andy ^_^
This refers to mega or million hashes per second, a measure of how fast miners (who support Bitcoin and earn income by computing the puzzle used in generating Bitcoin transaction blocks) are able to brute-force search SHA256 cryptographic hashes of transaction blocks for one that meets the high-difficulty challenge.
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DeathAndTaxes
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Gerald Davis
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December 22, 2011, 07:09:31 PM |
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what are mhash sorry i am a noob -___- ~andy ^_^
This refers to mega or million hashes per second, a measure of how fast miners (who support Bitcoin and earn income by computing the puzzle used in generating Bitcoin transaction blocks) are able to brute-force search SHA256 cryptographic hashes of transaction blocks for one that meets the high-difficulty challenge. As a frame of reference currently (difficulty changes periodically to adapt to amount of global hashing power) it requires on average ~5 quadrillion (5000 trillion) hashes to solve a block.
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cooper (OP)
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December 23, 2011, 12:46:40 AM Last edit: December 23, 2011, 12:57:32 AM by cooper |
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TYVM!!! back @ 389 mhash o'c .
thank you thank you... the post had a zip file with the old SDK files in it, it took 10 seconds to replace.
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