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Author Topic: Re: Very high rejection rate. 5%-12%  (Read 3936 times)
pandemic
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June 14, 2011, 01:02:22 AM
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My pool right now is bitcoins.lc. Whenever I leave the miner going for 8+ hours, I generally have about 10% rejection even though everyone else in the pool is getting less than 1%

I'm starting to think it's a latency issue because sometimes I'll run it for 30 min or so and it'll be fine. Other times I'll get 20% rejection.

Currently running a 4870 at 790mhz/790mhz mem at aggression 10 with phoenix and phoenix rising GUI miner. I've played with a lot of settings and nothing seems to help
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SomeoneWeird
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June 14, 2011, 01:06:24 AM
 #2

My pool right now is bitcoins.lc. Whenever I leave the miner going for 8+ hours, I generally have about 10% rejection even though everyone else in the pool is getting less than 1%

I'm starting to think it's a latency issue because sometimes I'll run it for 30 min or so and it'll be fine. Other times I'll get 20% rejection.

Currently running a 4870 at 790mhz/790mhz mem at aggression 10 with phoenix and phoenix rising GUI miner. I've played with a lot of settings and nothing seems to help

How hot is your gpu?
pandemic
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June 14, 2011, 01:26:23 AM
 #3

My pool right now is bitcoins.lc. Whenever I leave the miner going for 8+ hours, I generally have about 10% rejection even though everyone else in the pool is getting less than 1%

I'm starting to think it's a latency issue because sometimes I'll run it for 30 min or so and it'll be fine. Other times I'll get 20% rejection.

Currently running a 4870 at 790mhz/790mhz mem at aggression 10 with phoenix and phoenix rising GUI miner. I've played with a lot of settings and nothing seems to help

How hot is your gpu?

It gets to 85ish then levels out. I have the GPU fan on auto.

I'll put it on 50% and run it for a while to see if that helps.
LegitBit
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June 14, 2011, 02:02:40 AM
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85C?!

Kick that up to 100% fan or plan on loosing that card in the next two months.

50-70C is the safe range.

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pandemic
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June 14, 2011, 02:17:52 AM
 #5

85C?!

Kick that up to 100% fan or plan on loosing that card in the next two months.

50-70C is the safe range.

At 50% it's now at 60C. I don't care TOO much about this card because I have 2x 5830's on the way... as soon as they get more in.

As I said, it's at 60 and I'm still getting 5.71% rejected.

89mh/s
66 accepted (94.9%)
4 rejected (5.71%)
pandemic
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June 14, 2011, 12:14:10 PM
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I ran the fan at 50% all night. Woke up and the temp was 62C so it was definitely cool enough. I still had 8% rejection rate.
pandemic
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June 14, 2011, 11:38:32 PM
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Is this likely a latency issue with bitcoins.lc rather than a config setting on my machine? That's what I'm leaning towards.
pandemic
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June 15, 2011, 12:10:47 PM
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This morning I woke up and saw it was right back at 10% rejection.

I may just try switching pools. Are there any other things it could be?
pandemic
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June 16, 2011, 01:40:10 AM
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Just updated drivers for the 4870, will mine it for a while to see if it helped. Otherwise, I have QOS on my firewall so I'm wondering if disabling that would help.

Any other ideas?
SomeoneWeird
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June 16, 2011, 01:42:07 AM
 #10

Just updated drivers for the 4870, will mine it for a while to see if it helped. Otherwise, I have QOS on my firewall so I'm wondering if disabling that would help.

Any other ideas?

QoS could probably cause it, disable it and see if anything happens.
willphase
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June 16, 2011, 09:07:26 AM
 #11

try playing with your AGGRESSION - it seems to affect stale rate for some reason.

Will

pandemic
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June 16, 2011, 12:07:17 PM
 #12

I ran aggression rate 11 last night and got 5% rejected this morning. It's an improvement but still rather high. I'll mess with different aggression rates.
pandemic
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June 16, 2011, 12:48:47 PM
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Ran aggression 12 for 30 min or so, averaged 10% rejected.
Oldminer
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June 16, 2011, 07:46:49 PM
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I'm getting about a 5% rejection rate

Going to add flag -a2 back in cos I think I was getting lower rejection rate with that before OS reinstall

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pandemic
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June 16, 2011, 10:15:08 PM
 #15

I'm getting about a 5% rejection rate

Going to add flag -a2 back in cos I think I was getting lower rejection rate with that before OS reinstall

I'll have to look at how you do that because that'd give me something else to try out.
pandemic
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June 17, 2011, 03:57:35 AM
 #16

ran -a2 at aggression 8 for a while with 100% accepted. Going to run it at 12 aggression overnight to see how we do Smiley

Thank you for the very promising help. I'm pretty confident that this will solve that issue i was having.
pandemic
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June 17, 2011, 10:38:48 PM
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meh, no change. This morning it was at 7% rejected.
c_k
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June 18, 2011, 11:32:03 AM
 #18

I am over 300ms away from bitcoins.lc and I still only get 1% rejection rate, I am not sure it is purely latency you have a problem with

pandemic
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June 19, 2011, 12:09:55 AM
 #19

I am over 300ms away from bitcoins.lc and I still only get 1% rejection rate, I am not sure it is purely latency you have a problem with

How'd you check that? Any other ideas what it could be? I guess I could try underclocking.
pandemic
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June 19, 2011, 03:52:45 PM
 #20

idk what's wrong but this morning I had 12% rejection. Sucks.

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