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1  Economy / Computer hardware / [WTB] Looking for a SP20 ASIC board in EU on: February 21, 2016, 08:40:57 AM
Hi all,
  I need a SP20 ASIC board for my SP20E.

Thanks!
  geko
2  Bitcoin / Hardware / Re: Looking for a SP20 ASIC board in EU on: February 20, 2016, 11:22:12 PM
Thanks I'm a newbie...
3  Bitcoin / Hardware / Looking for a SP20 ASIC board in EU on: February 20, 2016, 02:21:03 PM
Anyone can help?

Thanks!

Bye,
  geko
4  Bitcoin / Hardware / Re: [ANN] Spondoolies-Tech - carrier grade, data center ready mining rigs on: January 18, 2016, 09:55:14 PM
Quote from: dogie on January 17, 2016, 11:21:10 PM
I don't believe you'll be able to rescue a dead board, you're best removing / unplugging / disabling it and moving on.

You're right but I would like to know if the board is really dead, so I asked.

Bye
5  Bitcoin / Hardware / Re: [ANN] Spondoolies-Tech - carrier grade, data center ready mining rigs on: January 17, 2016, 09:24:51 PM
Hi all,
  I have a problem with my SP20...
One board seems faulty, in the syslog I can read:

Jan 17 20:22:14 miner local1.warn minergate[637]: DC2DC Init 0 done OK
Jan 17 20:22:14 miner local1.warn minergate[637]: DC2DC Init 1 done OK
Jan 17 20:22:14 miner local1.warn minergate[637]: DC2DC Init 2 done OK
Jan 17 20:22:14 miner local1.warn minergate[637]: DC2DC Init 3 done OK
Jan 17 20:22:14 miner local1.warn minergate[637]: DC2DC Init 4 done OK
Jan 17 20:22:14 miner local1.warn minergate[637]: DC2DC Init 5 done OK
Jan 17 20:22:14 miner local1.warn minergate[637]: DC2DC Init 6 done OK
Jan 17 20:22:14 miner local1.warn minergate[637]: DC2DC Init 7 done OK
Jan 17 20:22:14 miner local1.warn minergate[637]: init_pwm
Jan 17 20:22:14 miner local1.warn minergate[637]: ADDR_SQUID_LOOP_BYPASS = ffffffe
Jan 17 20:22:14 miner local1.warn minergate[637]: Loop BAD DATA (0) on 0
Jan 17 20:22:14 miner local1.warn minergate[637]: loop 0 disabled (code 5)
Jan 17 20:22:14 miner local1.warn minergate[637]: Critical: Loop missing in discovery 0 (code 5)
Jan 17 20:22:14 miner local1.warn minergate[637]: Disabling DC2DC 0 because no ASIC A X
Jan 17 20:22:15 miner local1.warn minergate[637]: Disabling DC2DC 1 because no ASIC A X
Jan 17 20:22:15 miner local1.warn minergate[637]: ADDR_SQUID_LOOP_BYPASS = ffffffd
Jan 17 20:22:15 miner local1.warn minergate[637]: Loop BAD DATA (0) on 1
Jan 17 20:22:15 miner local1.warn minergate[637]: loop 1 disabled (code 5)
Jan 17 20:22:15 miner local1.warn minergate[637]: Critical: Loop missing in discovery 1 (code 5)
Jan 17 20:22:15 miner local1.warn minergate[637]: Disabling DC2DC 2 because no ASIC A X
Jan 17 20:22:15 miner local1.warn minergate[637]: Disabling DC2DC 3 because no ASIC A X
Jan 17 20:22:15 miner local1.warn minergate[637]: ADDR_SQUID_LOOP_BYPASS = ffffffb
Jan 17 20:22:15 miner local1.warn minergate[637]: All passed 5
Jan 17 20:22:15 miner local1.warn minergate[637]: loop 2 enabled
Jan 17 20:22:15 miner local1.warn minergate[637]: ADDR_SQUID_LOOP_BYPASS = ffffff7
Jan 17 20:22:15 miner local1.warn minergate[637]: All passed 5
Jan 17 20:22:15 miner local1.warn minergate[637]: loop 3 enabled
Jan 17 20:22:15 miner local1.warn minergate[637]: ADDR_SQUID_LOOP_BYPASS = ffffff3
Jan 17 20:22:15 miner local1.warn minergate[637]: Found 2 good loops
Jan 17 20:22:15 miner local1.warn minergate[637]: enable_good_loops_ok done 1965
Jan 17 20:22:15 miner local1.warn minergate[637]: GOT VERSION: 0x46
Jan 17 20:22:15 miner local1.warn minergate[637]: ASICS in loop 0: 0
Jan 17 20:22:15 miner local1.warn minergate[637]: ASICS in loop 1: 0
Jan 17 20:22:15 miner local1.warn minergate[637]:  ASICS in loop 2: 2
Jan 17 20:22:15 miner local1.warn minergate[637]:  ASICS in loop 3: 2

I placed the good asic board in the other slot and extracted the faulty one and get:

Jan 16 16:05:50 miner local1.warn minergate[696]: LOST BOTTOM BOARD!
Jan 16 16:05:50 miner local1.warn minergate[696]: TAKE ONE BOARD 0 PRESENT:1
Jan 16 16:05:50 miner local1.warn minergate[696]: TAKE ONE BOARD 1 PRESENT:0
Jan 16 16:05:50 miner local1.warn minergate[696]: TAKE TWO BOARD 0 PRESENT:1
Jan 16 16:05:50 miner local1.warn minergate[696]: TAKE TWO BOARD 1 PRESENT:0
Jan 16 16:05:50 miner local1.warn minergate[696]: DC2DC stop all
Jan 16 16:05:50 miner daemon.info init: starting pid 787, tty '/dev/ttyO0': '/sbin/getty -L ttyO0 115200 vt100 '
Jan 16 16:05:51 miner local1.warn minergate[696]: DC2DC Init 0 done OK
Jan 16 16:05:51 miner local1.warn minergate[696]: DC2DC Init 1 done OK
Jan 16 16:05:51 miner local1.warn minergate[696]: DC2DC Init 2 done OK
Jan 16 16:05:51 miner local1.warn minergate[696]: DC2DC Init 3 done OK
Jan 16 16:05:51 miner local1.warn minergate[696]: i2c write 0x71 = 0x1 error2
Jan 16 16:05:51 miner local1.warn minergate[696]: i2c write byte 0x18 0x2 = 0x12 error6
Jan 16 16:05:51 miner local1.warn minergate[696]: i2c write 0x71 = 0x0 error2
Jan 16 16:05:51 miner local1.warn minergate[696]: i2c write 0x71 = 0x2 error2
Jan 16 16:05:51 miner local1.warn minergate[696]: i2c write byte 0x18 0x2 = 0x12 error6
Jan 16 16:05:51 miner local1.warn minergate[696]: i2c write 0x71 = 0x0 error2
Jan 16 16:05:51 miner local1.warn minergate[696]: i2c write 0x71 = 0x4 error2
Jan 16 16:05:51 miner local1.warn minergate[696]: i2c write byte 0x18 0x2 = 0x12 error6
Jan 16 16:05:51 miner local1.warn minergate[696]: i2c write 0x71 = 0x0 error2
Jan 16 16:05:51 miner local1.warn minergate[696]: i2c write 0x71 = 0x8 error2
Jan 16 16:05:51 miner local1.warn minergate[696]: i2c write byte 0x18 0x2 = 0x12 error6
Jan 16 16:05:51 miner local1.warn minergate[696]: i2c write 0x71 = 0x0 error2


So the controller is ok and the faulty board seems to send information about DC2DC converters.
Do you think that all ASIC in the faulty board are fried?

I have an oscilloscope,  what can I measure to be sure that the ASICs are really bad?

Thanks!
Bye
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