Quote from: isbjorninn on February 09, 2016, 01:17:40 PM

Hello, I am trying to use the new 5.0 for a2 mega (i think, bought second hand on ebay) and it starts, and then slowly dies.... i am trying to run it at super low level, 700mhz to see if the hw errors go away.. but to no avail.

starts fine after power-on boot,

Code:

[2016-02-03 05:18:02] Started cgminer 3.9.0
[2016-02-03 05:18:02] Run Reset=1
[2016-02-03 05:18:02] ST MCU hardware reset start
[2016-02-03 05:18:06] SPI Speed 4000 kHz
[2016-02-03 05:18:06] ST MCU - Enable (Pre-header)
[2016-02-03 05:18:06] A2 = 700,24
[2016-02-03 05:18:06] A2 PLL Clock = 700MHz
[2016-02-03 05:18:06] A2 = 700,24
[2016-02-03 05:18:06] A2 PLL Clock = 700MHz
[2016-02-03 05:18:06] A2 = 700,24
[2016-02-03 05:18:06] A2 PLL Clock = 700MHz
[2016-02-03 05:18:06] A2 = 700,24
[2016-02-03 05:18:06] A2 PLL Clock = 700MHz
[2016-02-03 05:18:06] A2 = 700,24
[2016-02-03 05:18:06] A2 PLL Clock = 700MHz
[2016-02-03 05:18:06] A2 = 700,24
[2016-02-03 05:18:06] A2 PLL Clock = 700MHz
[2016-02-03 05:18:06] AUTO GPIO CS
[2016-02-03 05:18:07] spidev0.0(cs0): Found 12 A2 chips
[2016-02-03 05:18:07] Found chip 1 with 54 active cores
[2016-02-03 05:18:07] Found chip 2 with 54 active cores
[2016-02-03 05:18:07] Found chip 3 with 54 active cores
[2016-02-03 05:18:07] Found chip 4 with 54 active cores
[2016-02-03 05:18:07] Found chip 5 with 54 active cores
[2016-02-03 05:18:07] Found chip 6 with 0 active cores
[2016-02-03 05:18:07] Found chip 7 with 54 active cores
[2016-02-03 05:18:07] Found chip 8 with 54 active cores
[2016-02-03 05:18:07] Found chip 9 with 54 active cores
[2016-02-03 05:18:07] Found chip 10 with 54 active cores
[2016-02-03 05:18:07] Found chip 11 with 54 active cores
[2016-02-03 05:18:07] Found chip 12 with 0 active cores
[2016-02-03 05:18:07] Found 12 chips with total 540 active cores
[2016-02-03 05:18:08] spidev0.0(cs1): Found 12 A2 chips
[2016-02-03 05:18:08] Found chip 1 with 54 active cores
[2016-02-03 05:18:08] Found chip 2 with 54 active cores
[2016-02-03 05:18:08] Found chip 3 with 54 active cores
[2016-02-03 05:18:08] Found chip 4 with 54 active cores
[2016-02-03 05:18:08] Found chip 5 with 54 active cores
[2016-02-03 05:18:08] Found chip 6 with 0 active cores
[2016-02-03 05:18:08] Found chip 7 with 54 active cores
[2016-02-03 05:18:08] Found chip 8 with 54 active cores
[2016-02-03 05:18:08] Found chip 9 with 54 active cores
[2016-02-03 05:18:08] Found chip 10 with 54 active cores
[2016-02-03 05:18:08] Found chip 11 with 54 active cores
[2016-02-03 05:18:08] Found chip 12 with 0 active cores
[2016-02-03 05:18:08] Found 12 chips with total 540 active cores
[2016-02-03 05:18:08] spidev0.0(cs2): Found 12 A2 chips
[2016-02-03 05:18:08] Found chip 1 with 54 active cores
[2016-02-03 05:18:08] Found chip 2 with 54 active cores
[2016-02-03 05:18:08] Found chip 3 with 54 active cores
[2016-02-03 05:18:08] Found chip 4 with 54 active cores
[2016-02-03 05:18:08] Found chip 5 with 54 active cores
[2016-02-03 05:18:08] Found chip 6 with 0 active cores
[2016-02-03 05:18:08] Found chip 7 with 54 active cores
[2016-02-03 05:18:08] Found chip 8 with 54 active cores
[2016-02-03 05:18:08] Found chip 9 with 54 active cores
......etc

then I get a lot of invalid nonce errors...

and then it slowly dies when trying to reset the boards

Code:

[2016-02-03 05:19:32] Failed to reset bc from chip(cs4) 0
[2016-02-03 05:19:32] Reinit board (cs4)
[2016-02-03 05:19:32] Accepted 01d1b814 Diff 36K/64 BA1 4 pool 0
[2016-02-03 05:19:32] Accepted 036af226 Diff 74/64 BA1 1 pool 0
[2016-02-03 05:19:32] Accepted 037eb80e Diff 73/64 BA1 3 pool 0
[2016-02-03 05:19:32] Accepted 018460f3 Diff 168/64 BA1 3 pool 0
(5s):64.33M (avg):64.75Mh/s (pool):59.76Mh/s | A:73536 R:0 HW:114 WU:54709.1/m^M [2016-02-03 05:19:32] Accepted 03372d18 Diff 20.4K/15360 BA1 2 pool 0
[2016-02-03 05:19:33] Failure(cs4)(240): missing ACK for cmd 0x04
[2016-02-03 05:19:33] ACK(cs4) timeout:cmd_RESET_BCAST-1.14901s
[2016-02-03 05:19:33] Reinit board failure (cs4)

and when it has tried to reinit the boards, it just sits there..

if I try to restart cgminer manually this is the error:

Code:

[2016-02-03 05:42:45] Started cgminer 3.9.0
[2016-02-03 05:42:45] Run Reset=1
[2016-02-03 05:42:45] ST MCU hardware reset start
[2016-02-03 05:42:49] SPI Speed 4000 kHz
[2016-02-03 05:42:49] ST MCU - Enable (Pre-header)
[2016-02-03 05:42:49] A2 = 700,24
[2016-02-03 05:42:49] A2 PLL Clock = 700MHz
[2016-02-03 05:42:49] A2 = 700,24
[2016-02-03 05:42:49] A2 PLL Clock = 700MHz
[2016-02-03 05:42:49] A2 = 700,24
[2016-02-03 05:42:49] A2 PLL Clock = 700MHz
[2016-02-03 05:42:49] A2 = 700,24
[2016-02-03 05:42:49] A2 PLL Clock = 700MHz
[2016-02-03 05:42:49] A2 = 700,24
[2016-02-03 05:42:49] A2 PLL Clock = 700MHz
[2016-02-03 05:42:49] A2 = 700,24
[2016-02-03 05:42:49] A2 PLL Clock = 700MHz
[2016-02-03 05:42:49] AUTO GPIO CS
[2016-02-03 05:42:50] Failure(cs0)(20): missing ACK for cmd 0x04
[2016-02-03 05:42:50] ACK(cs0) timeout:cmd_RESET_BCAST-1.2750s
[2016-02-03 05:42:51] Failure(cs1)(20): missing ACK for cmd 0x04
[2016-02-03 05:42:51] ACK(cs1) timeout:cmd_RESET_BCAST-1.3020s
[2016-02-03 05:42:52] Failure(cs2)(20): missing ACK for cmd 0x04
[2016-02-03 05:42:52] ACK(cs2) timeout:cmd_RESET_BCAST-1.2607s
[2016-02-03 05:42:53] Failure(cs3)(20): missing ACK for cmd 0x04
[2016-02-03 05:42:53] ACK(cs3) timeout:cmd_RESET_BCAST-1.4347s
[2016-02-03 05:42:54] Failure(cs4)(20): missing ACK for cmd 0x04
[2016-02-03 05:42:54] ACK(cs4) timeout:cmd_RESET_BCAST-1.2680s
[2016-02-03 05:42:55] Failure(cs5)(20): missing ACK for cmd 0x04
[2016-02-03 05:42:55] ACK(cs5) timeout:cmd_RESET_BCAST-1.2720s
[2016-02-03 05:42:55] No any A2 board

No any A2 board

any ideas?

I'd be blaming the power supply. Disconnect say half of the boards from power and see if it becomes stable. The PSU in mine could not handle more than 4 at 1200MHz, and only 5 at 700MHz. I just strapped a second power supply to mine, each powering 3 boards at 1320MHz.