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Author Topic: Hi guys and KNC miner users in particular  (Read 400 times)
FractionalReserve
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October 11, 2013, 01:51:35 PM
 #1

Hello, haven´t had time to go thru the Newbie process before but as it just has changed I thought I might do some good here.

We are running a large amount of KNC Jupiter Miners and has resolved most problems during these first weeks and we have a large understanding for why issues are present on some miners.

Lets see once this newbi status is gone I will post some in the KNCMiner thread that might help some people out (or at least give them some clues whats going on).

Cheers
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October 11, 2013, 02:04:41 PM
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Welcome Smiley

I dont have a KNC but someone can talk with you Smiley



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chandrakant
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October 11, 2013, 02:42:58 PM
 #3

Welcome to the forum FractionalReserve  Grin
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October 25, 2013, 09:28:14 AM
 #4

Hello, haven´t had time to go thru the Newbie process before but as it just has changed I thought I might do some good here.

We are running a large amount of KNC Jupiter Miners and has resolved most problems during these first weeks and we have a large understanding for why issues are present on some miners.

Lets see once this newbi status is gone I will post some in the KNCMiner thread that might help some people out (or at least give them some clues whats going on).

Cheers

Thanks for offering the help, I really appreciate it!

I have a Mercury that's doing good, hashing at ~145 GH/s, but my Jupiter is a complete disaster:

I received my Jupiter today.

I tried all firmwares, always with enablecores and the only one that seemed to be hashing at some (relatively low) rate was .95

.96-.97 were a complete disaster with the miner regularly starting high at around 150 GH and then going down to zero, always accompanied with errors like

[2000-01-01 00:34:22] KnC: accepted by FPGA 14 works, but only 0 submitted

flooding in en masse when running "screen -dr" on the ssh console.

On .95 I'm hashing somewhere around 300-350.

I'm still seeing the error message above on a repetitive basis, but not as much as on the other firmware versions.

I'm also seeing this error from time to time:

[2000-01-01 00:03:38] KnC: core 2-76 was disabled due to 10 HW errors in a row

I'm seeing via bertmod.bin that all but 3 cores are off, but I'm also seeing that one of them is a bit cooler than the other three (see screenshots).

My question to KNC: What do I need to do to get it up to the advertised 550 GH/s level?

Here's a snapshot of the screen -dr output:

cgminer version 3.4.0 - Started: [2000-01-01 00:30:46]
--------------------------------------------------------------------------------
(5s):339.5G (avg):338.3Gh/s | A:43010 R:1056 HW:13755 WU:5109.2/m
ST: 2 SS: 0 NB: 1 LW: 81029 GF: 0 RF: 1
Connected to stratum-lb-ddos.btcguild.com diff 512 with stratum as user xxxxxx
Block: 000d047a814b3ed9... Diff:268M Started: [00:30:46] Best share: 129K
--------------------------------------------------------------------------------
Pool management Settings Display options Quit
KnC 0: | 326.0G/338.5Gh/s | A:43010 R:1056 HW:13777 WU:5114.8/m
--------------------------------------------------------------------------------

[2000-01-01 00:40:43] KnC: accepted by FPGA 8 works, but only 2 submitted
[2000-01-01 00:40:43] KnC: accepted by FPGA 21 works, but only 16 submitted
[2000-01-01 00:40:43] KnC: accepted by FPGA 21 works, but only 14 submitted
[2000-01-01 00:40:44] KnC: accepted by FPGA 21 works, but only 17 submitted
[2000-01-01 00:40:44] KnC: accepted by FPGA 21 works, but only 13 submitted
[2000-01-01 00:40:44] KnC: accepted by FPGA 21 works, but only 9 submitted
[2000-01-01 00:40:44] KnC: accepted by FPGA 10 works, but only 8 submitted
[2000-01-01 00:40:44] KnC: accepted by FPGA 12 works, but only 5 submitted
[2000-01-01 00:40:44] KnC: accepted by FPGA 18 works, but only 12 submitted
[2000-01-01 00:40:44] KnC: accepted by FPGA 17 works, but only 4 submitted
[2000-01-01 00:40:45] KnC: accepted by FPGA 21 works, but only 1 submitted
[2000-01-01 00:40:45] KnC: accepted by FPGA 10 works, but only 1 submitted
[2000-01-01 00:40:45] KnC: accepted by FPGA 4 works, but only 1 submitted
[2000-01-01 00:40:45] KnC: accepted by FPGA 6 works, but only 1 submitted
[2000-01-01 00:40:45] KnC: accepted by FPGA 7 works, but only 2 submitted
[2000-01-01 00:40:45] KnC: accepted by FPGA 7 works, but only 2 submitted
[2000-01-01 00:40:45] KnC: accepted by FPGA 7 works, but only 1 submitted
[2000-01-01 00:40:45] KnC: accepted by FPGA 6 works, but only 2 submitted
[2000-01-01 00:40:45] KnC: accepted by FPGA 5 works, but only 0 submitted
[2000-01-01 00:40:45] KnC: accepted by FPGA 7 works, but only 2 submitted
[2000-01-01 00:40:45] KnC: accepted by FPGA 4 works, but only 1 submitted
[2000-01-01 00:40:45] KnC: accepted by FPGA 5 works, but only 0 submitted
[2000-01-01 00:40:45] KnC: accepted by FPGA 8 works, but only 5 submitted
[2000-01-01 00:40:45] KnC: accepted by FPGA 4 works, but only 1 submitted
[2000-01-01 00:40:45] KnC: accepted by FPGA 18 works, but only 12 submitted
[2000-01-01 00:40:45] KnC: accepted by FPGA 10 works, but only 1 submitted

And here comes the worst part, my stats as reported on btcguild for the jupiter indicate:

Est. Speed: 251.22 GH/s
​Accepted shares: 622592 (25.25%)

25% accepted shares? Does that mean I'm basically hashing at 60 GH/s's worth of hashing power?

I also posted some screenshots of bertmod here:

http://forum.kncminer.com/forum/main-category/hardware/10711-jupiter-only-hashing-at-300-350?p=10712#post10712

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