Thanks Form, u're you superb ! After adjustment I'm now getting 11 - 14 G ~ with almost no error , < 1%.. 
I'm getting alot of " went idle before work was sent"
I'm getting alot of " went idle before work was sent"
Yeah, i get these messages here, too - since months
Actually, changing TICK_TOTAL adjusts the timeout for one job. When the value is too big/small the result is many dupe/idle messages.
I think 20800 is near the "golden mean". It doesnt affect the hashrate as much as one would think.
I have updated the code (and the .hex) in the github-repo now, too.
Can you tell something about your frequency and voltage settings? Are you cooling the chips from topside, too?
I have make 3 PCB.
I'm trying the 1 volt, 16chip is very cool.(bottom side heatsink with fan)
writing new hex file.
Result :
using cgminer cgminer-3.9.0-windows
7~16G show like that, but actually the 0G(btcguild).
using bfgminer-3.8.1-win32
I'm getting 4.65GH/s(same btcguild)
Thank for form.
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bfgminer version 3.8.1 - Started: [2013-12-25 16:02:15] - [ 0 days 01:55:49]
[M]anage devices [P]ool management Settings [D]isplay options [H]elp [Q]uit
Connected to stratum-lb-usa48.btcguild.com diff 8 with stratum as user *****
Block: ...180a0d30 #276856 Diff:1.18G ( 8.45Ph/s) Started: [17:57:06]
ST:2 F:0 NB:15 AS:1 BW:[ 57/ 37 B/s] E:23.60 I:83.14uBTC/hr BS:4.25k
1 25.5C | 10.31/10.71/ 4.65Gh/s | A:948 R:1236+4( 57%) HW:2/.01%
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KLN 0: 24.7C | 11.79/10.71/ 4.65Gh/s | A:948 R:1236+4( 57%) HW:2/.01%
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[2013-12-25 17:57:16] Rejected 0fd229a5 KLN 0 Diff 16/8 (duplicate)
[2013-12-25 17:57:24] Accepted 1c6650d9 KLN 0 Diff 9/8
[2013-12-25 17:57:24] Rejected 1c6650d9 KLN 0 Diff 9/8 (duplicate)
[2013-12-25 17:57:29] Accepted 0ed3b0d3 KLN 0 Diff 17/8
[2013-12-25 17:57:29] Rejected 0ed3b0d3 KLN 0 Diff 17/8 (duplicate)
[2013-12-25 17:57:32] Stratum from pool 0 requested work update
[2013-12-25 17:57:32] Accepted 074c64dd KLN 0 Diff 35/8
[2013-12-25 17:57:32] Rejected 074c64dd KLN 0 Diff 35/8 (duplicate)
[2013-12-25 17:57:41] Accepted 0e913eed KLN 0 Diff 17/8
[2013-12-25 17:57:41] Rejected 0e913eed KLN 0 Diff 17/8 (duplicate)
[2013-12-25 17:57:42] Rejected 0e913eed KLN 0 Diff 17/8 (duplicate)
[2013-12-25 17:57:45] Accepted 117e4481 KLN 0 Diff 14/8
[2013-12-25 17:57:45] Rejected 117e4481 KLN 0 Diff 14/8 (duplicate)
[2013-12-25 17:58:00] Accepted 1da98d79 KLN 0 Diff 8/8
[2013-12-25 17:58:01] Rejected 1da98d79 KLN 0 Diff 8/8 (duplicate)
[2013-12-25 17:58:02] Stratum from pool 0 requested work update