mute20 (OP)
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August 18, 2011, 06:11:14 PM |
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So I am using 1.61 phoenix with phatk 4% increase powercolor 6850. Does this seem high?
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echo2
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August 18, 2011, 08:53:58 PM |
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well it does seem a little high because i get around 1% rejection rate on my 5830 with cgminer but 1-3% is normal
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DrHaribo
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Needs more jiggawatts
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August 19, 2011, 05:06:56 PM |
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I would say over 1% is high
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teukon
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August 19, 2011, 05:20:55 PM |
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I think it depends a lot on the server. I think 1-1.5% is typical but you'd have to check with your specific pool. That said I would personally consider anything over 1% too high. I'm using phoenix and phatk 2.2 on two 5850s and they currently read:
[355.12 Mhash/sec] [5143 Accepted] [5 Rejected] [RPC (+LP)] [377.12 Mhash/sec] [5411 Accepted] [8 Rejected] [RPC (+LP)]
so about 0.12% rejects.
Kernel versions can affect rejects and aggression makes a small difference too but the server was the key thing for me. I mine with simplecoin.us which has just rolled out a serious new dedicated server (pool.simplecoin.us). Big pools use several servers so perhaps try switching between them.
Also, I don't believe phoenix discerns between shares rejected because they are old and ones rejected because they are invalid. If your rejected shares are clustered around/after new work units are pushed then try different pools/servers; if they are scattered at random then try lowering your cards core or RAM clocks and/or trying different kernels (there's plenty of variation between all of Diapolo's and Phateus' phatk versions).
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Trini8ed
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<3 Bitcoins
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August 20, 2011, 10:17:27 AM |
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You should be fine I think its more a streak of bad luck in my opinion.
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jrtubs
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August 20, 2011, 03:50:09 PM |
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that seems very high i have never had more then .20%, make sure you're in a pool with long pooling.
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teukon
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August 20, 2011, 05:32:13 PM |
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I have no idea whether or not it makes a difference but you could try forwarding the appropriate port in your router.
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mute20 (OP)
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August 21, 2011, 01:51:40 PM |
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I dropped the core clock on my card by 8 mhz. Seemed to do the trick down to 0.3%
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echo2
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August 21, 2011, 07:42:20 PM |
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you should try diffrent miners and run for a day to see which one haz the lowest rejection rate
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mute20 (OP)
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August 22, 2011, 02:21:27 PM |
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So after running at 8 mhz less I have found that overclock caused the 4x+ increase in rejected shares. It is easily losing some hashing speed for a lower rejected rate.
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echo2
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August 22, 2011, 11:44:23 PM |
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