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Author Topic: 280-300 Mhash/s randomly dropping to 200-300 khash/s using GUIMiner  (Read 3297 times)
zoober (OP)
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February 20, 2013, 12:46:21 AM
 #1

Hi all,

I am new to bitcoin mining and when I start mining it goes at 280-300 Mhash/s and then seemingly randomly drops down to 200-300 khash/s. It will stay there until I click stop mining and then start mining again. Immediately after clicking Start mining again it resumes back at 280-300 Mhash/s.

Is there a setting somewhere I need to modify somewhere?
zoober (OP)
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February 20, 2013, 03:30:31 AM
 #2

I have been watching the logs and the drop occurs on a new block. I see this in the log:

013-02-19 22:27:12: Listener for "Default": pit.deepbit.net:8332 19/02/2013 22:27:12, long poll: new block 00000374xxxxxxx
k22k
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February 20, 2013, 07:39:12 PM
 #3

I have the same problem. If I stop and start the miner it goes back to normal. It only happens with deepbit from what I can see. I have the latest guiminer too.

If anyone knows how to fix it I would appreciate it.
taltamir
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February 20, 2013, 07:41:32 PM
Last edit: February 20, 2013, 10:23:03 PM by taltamir
 #4

I think I am getting the same issue. My card can produce 300MH/s but is very loud doing so.
With careful configuration of -f or -s I can lower it. If I leave it on (a stable) 50MH/s before going to sleep I wake up in the morning it has somehow dropped down to 2MH/s

However, I am getting it with BTC Guild
zoober (OP)
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February 20, 2013, 10:21:40 PM
 #5

Yeah I noticed it appears to only be a problem with deepbit as well when the long poll shows up in the console. I added a post in the deepbit thread for newbies but no response yet.
paul4949
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February 24, 2013, 11:11:39 PM
 #6

My pool is bitcoinpool, and I'm getting the same thing.  I have tried using only 1 gpu, both gpus, same thing happens either way.  I'm at around 60mhash/s for about 5-10 min, then it drops to 3xxkhash/s and won't go back up.  I'm thinking it's a bug in guiminer.  I'm thinking of trying cgminer.
Hiver
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February 25, 2013, 12:48:42 AM
 #7

Sorry to thread jack, but what kind of hardware are you using? Are you seeing any profit on that hash rate?
(^_^)
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March 08, 2013, 05:43:48 PM
 #8

So there's been no fix for this?
KrLos
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March 08, 2013, 05:56:27 PM
 #9

having same issue mining PPC.
tommywommy
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March 27, 2013, 03:00:20 AM
 #10

any news on this. mine is doing it right now  Embarrassed

No point leaving my pc on all night
dogie
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March 27, 2013, 03:06:04 AM
 #11

Without hoping to sound like an idiot, have you checked for any thermal throttling?

One of my cards is almost maxed on idle cooling due to a misbalanced fan blade.

LurbQBurdock
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March 27, 2013, 05:58:19 AM
 #12

I'm also having the same problem with PPC mining from Bitparking's pool.  I had no problem with mining BTC from Slush's pool
mc_lovin
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April 14, 2013, 04:48:06 AM
Last edit: April 14, 2013, 06:23:33 AM by mc_lovin
 #13

going to bump this as it's annoying and i wish a solution was posted Smiley

edit: figured it out eventually, downgrade to 2012-2-19

https://github.com/downloads/Kiv/poclbm/guiminer-20120219.exe
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