Quote from: RoadStress on October 20, 2014, 12:07:56 PM

It depends on each miner. I found out that the most efficient settings is to set min voltage 0.612 and max voltage 0.618(or 0.622). I have my miners set up to min 0.614 and max 0.618.

Not sure how you do it there on your SP10, but on my SP30 running FW 2.4.21 the UI does not accept any low voltage.. This is what the UI says, and the settings must be in the range to be accepted.

Quote

Set your starting voltage no more then 10 mv under your stable working voltage (from ASIC stats page)
Start Volts Top (0.66-0.70)
Start Volts Bottom(0.66-0.70)

now .. I can always edit the parameters "FAN:80 VST:660 VSB:660 VMAX:750 AC_TOP:1330 AC_BOT:1295 DC_AMP:150" in /etc/mg_custom_mode, but not everyone is playing with the files.

I suspect the "stable working voltage" in the ASIC page is the "vlt1/vlt2" range when the unit is running fine .. where VLT1 is the low voltage setting, and the VLT2 is the high one.
Also, please note that the top psu powers loops 0 to 4 and the bottom psu powers loops 5 to 9. At least on my unit.

Code:

Uptime:150 | FPGA ver:32
-----BOARD-0-----
PSU[EMERSON1200]: 1520->1324w[1320 1324 1320] (->1350w[1350 1350 1350]) (lim=1330) 0c cooling:0/0x20003200
-----BOARD-1-----
PSU[EMERSON1200]: 1456->1292w[1292 1288 1288] (->1306w[1306 1306 1306]) (lim=1295) 0c cooling:0/0x20003200
LOOP[0] ON
0: DC2DC/1/:[vlt1:697 vlt2:701(DCl:794 Tl:794 Ul:749) 65W 94A 55c] ASIC:[ 85c 740hz(BL: 740) 515 (E:193) F:0]
1: DC2DC/1/:[vlt1:697 vlt2:701(DCl:794 Tl:794 Ul:749) 69W 99A 56c] ASIC:[ 85c 765hz(BL: 765) 566 (E:191) F:0]
2: DC2DC/1/:[vlt1:699 vlt2:701(DCl:794 Tl:794 Ul:749) 71W 101A 50c] ASIC:[ 85c 795hz(BL: 795) 582 (E:193) F:0]
LOOP[1] ON
3: DC2DC/1/:[vlt1:695 vlt2:701(DCl:794 Tl:794 Ul:749) 67W 96A 55c] ASIC:[ 85c 750hz(BL: 750) 561 (E:192) F:0]
4: DC2DC/1/:[vlt1:695 vlt2:701(DCl:794 Tl:794 Ul:749) 70W 100A 67c] ASIC:[ 85c 790hz(BL: 790) 600 (E:193) F:0]
5: DC2DC/1/:[vlt1:697 vlt2:701(DCl:794 Tl:794 Ul:749) 64W 92A 61c] ASIC:[ 85c 725hz(BL: 725) 505 (E:193) F:0]
LOOP[2] ON
6: DC2DC/1/:[vlt1:697 vlt2:703(DCl:794 Tl:794 Ul:749) 72W 102A 72c] ASIC:[ 85c 810hz(BL: 810) 585 (E:193) F:0]
7: DC2DC/1/:[vlt1:699 vlt2:703(DCl:794 Tl:794 Ul:749) 77W 109A 76c] ASIC:[100c 840hz(BL: 840) 607 (E:193) F:0]
8: DC2DC/1/:[vlt1:697 vlt2:703(DCl:794 Tl:794 Ul:749) 74W 106A 58c] ASIC:[ 85c 815hz(BL: 815) 605 (E:193) F:0]
LOOP[3] ON
9: DC2DC/1/:[vlt1:695 vlt2:701(DCl:794 Tl:701 Ul:749) 74W 106A 70c] ASIC:[110c 805hz(BL: 805) 598 (E:193) F:0]
10: DC2DC/1/:[vlt1:699 vlt2:703(DCl:794 Tl:794 Ul:749) 81W 115A 82c] ASIC:[105c 870hz(BL: 870) 663 (E:193) F:0]
11: DC2DC/1/:[vlt1:701 vlt2:703(DCl:794 Tl:794 Ul:749) 70W 100A 73c] ASIC:[ 85c 780hz(BL: 780) 577 (E:193) F:0]
LOOP[4] ON
12: DC2DC/1/:[vlt1:681 vlt2:688(DCl:794 Tl:688 Ul:749) 68W 99A 83c] ASIC:[110c 805hz(BL: 805) 576 (E:193) F:0]
13: DC2DC/1/:[vlt1:689 vlt2:693(DCl:794 Tl:693 Ul:749) 66W 95A 79c] ASIC:[110c 765hz(BL: 765) 530 (E:193) F:0]
14: DC2DC/1/:[vlt1:701 vlt2:703(DCl:794 Tl:794 Ul:749) 75W 107A 67c] ASIC:[110c 840hz(BL: 840) 598 (E:193) F:0]
LOOP[5] ON
15: DC2DC/1/:[vlt1:685 vlt2:693(DCl:794 Tl:794 Ul:749) 63W 91A 53c] ASIC:[ 85c 725hz(BL: 725) 485 (E:193) F:0]
16: DC2DC/1/:[vlt1:687 vlt2:693(DCl:794 Tl:794 Ul:749) 67W 96A 57c] ASIC:[ 85c 765hz(BL: 765) 561 (E:191) F:0]
17: DC2DC/1/:[vlt1:695 vlt2:695(DCl:794 Tl:794 Ul:749) 67W 97A 49c] ASIC:[ 85c 765hz(BL: 765) 553 (E:193) F:0]
LOOP[6] ON
18: DC2DC/1/:[vlt1:693 vlt2:695(DCl:794 Tl:794 Ul:749) 69W 99A 59c] ASIC:[ 85c 785hz(BL: 785) 581 (E:193) F:0]
19: DC2DC/1/:[vlt1:689 vlt2:695(DCl:794 Tl:794 Ul:749) 68W 98A 69c] ASIC:[ 85c 785hz(BL: 785) 587 (E:193) F:0]
20: DC2DC/1/:[vlt1:693 vlt2:695(DCl:794 Tl:794 Ul:749) 68W 98A 66c] ASIC:[ 85c 780hz(BL: 780) 534 (E:193) F:0]
LOOP[7] ON
21: DC2DC/1/:[vlt1:693 vlt2:695(DCl:794 Tl:794 Ul:749) 73W 105A 78c] ASIC:[ 85c 820hz(BL: 820) 567 (E:193) F:0]
22: DC2DC/1/:[vlt1:691 vlt2:695(DCl:794 Tl:794 Ul:749) 68W 98A 77c] ASIC:[ 85c 790hz(BL: 790) 574 (E:193) F:0]
23: DC2DC/1/:[vlt1:691 vlt2:695(DCl:794 Tl:794 Ul:749) 66W 95A 60c] ASIC:[ 85c 750hz(BL: 750) 563 (E:193) F:0]
LOOP[8] ON
24: DC2DC/1/:[vlt1:691 vlt2:695(DCl:794 Tl:794 Ul:749) 69W 99A 69c] ASIC:[105c 785hz(BL: 785) 576 (E:193) F:0]
25: DC2DC/1/:[vlt1:689 vlt2:695(DCl:794 Tl:794 Ul:749) 68W 98A 81c] ASIC:[100c 790hz(BL: 790) 572 (E:193) F:0]
26: DC2DC/1/:[vlt1:691 vlt2:695(DCl:794 Tl:794 Ul:749) 79W 114A 84c] ASIC:[105c 865hz(BL: 865) 719 (E:193) F:0]
LOOP[9] ON
27: DC2DC/1/:[vlt1:691 vlt2:695(DCl:794 Tl:794 Ul:749) 70W 101A 85c] ASIC:[105c 785hz(BL: 785) 288 (E:189) F:0]
28: DC2DC/1/:[vlt1:691 vlt2:695(DCl:794 Tl:794 Ul:749) 63W 90A 81c] ASIC:[100c 715hz(BL: 715) 222 (E:193) F:0]
29: DC2DC/1/:[vlt1:689 vlt2:693(DCl:794 Tl:693 Ul:749) 70W 102A 71c] ASIC:[110c 805hz(BL: 805) 300 (E:193) F:0]

[H:HW:4555Gh,W:2102,L:0,A:30,MMtmp:0 TMP:(22)=>=>=>(70,71)]
Pushed 27 jobs , in HW queue 4 jobs (sw:1, hw:1)!
min:54 wins:16350[this/last min:203/259] bist-fail:527, hw-err:92
leading-zeroes:40 idle promils[s/m]:0/0, rate:4526gh/s asic-count:30
Fan:80, conseq:200
AC2DC BAD: 0 0
R/NR: 4193/0
RTF asics: 0
2 restarted 0 reset 0 reset2 0 fake_wins
0 stuck_bist 0 low_power 0 stuck_pll 0 runtime_dsble
0 purge_queue 1 read_timeouts 0 dc2dc_oc 26 read_tmout2 2 read_crptn
0 purge_queue3 94 bad_idle
Adapter queues: rsp=1, req=22