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VRobb
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December 02, 2017, 05:16:39 PM |
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Looks like one of your boards is only hashing at 10% of rated. What psu is powering this?
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I don't believe in superstition because it's bad luck: 13thF1oor6CAwyzyxXPNnRvu3nhhYeqZdc These aren't the Droids you're looking for: S5 & S7 (Sold), R4B2, R4B4 (RIP), 2x S9 obsolete, 2xS15-28, S17-56, S17-70 Pushing a whopping 1/5 PH! Oh The SPEED!!!
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madkao (OP)
Newbie
Offline
Activity: 6
Merit: 0
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December 02, 2017, 05:31:47 PM |
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have 2 hp 1200 watt power supplies connected to it that he included
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HagssFIN
Legendary
Offline
Activity: 2436
Merit: 1706
Electrical engineer. Mining since 2014.
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December 02, 2017, 06:05:29 PM |
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You seem to have one faulty hash board in the Chain 4.
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VRobb
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December 02, 2017, 06:12:43 PM |
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You should have plenty power, have you tried moving the connectors around and see if the problem follows? Hash boards are usually running or not, that kinda running is strange!
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I don't believe in superstition because it's bad luck: 13thF1oor6CAwyzyxXPNnRvu3nhhYeqZdc These aren't the Droids you're looking for: S5 & S7 (Sold), R4B2, R4B4 (RIP), 2x S9 obsolete, 2xS15-28, S17-56, S17-70 Pushing a whopping 1/5 PH! Oh The SPEED!!!
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HagssFIN
Legendary
Offline
Activity: 2436
Merit: 1706
Electrical engineer. Mining since 2014.
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December 02, 2017, 06:13:51 PM |
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Yeah. And make sure you don't mix those two psu's in the same hash board!
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madkao (OP)
Newbie
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Activity: 6
Merit: 0
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December 02, 2017, 06:21:31 PM |
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ok so that could be it... each psu was set up with 5 outputs so one is sharing
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HagssFIN
Legendary
Offline
Activity: 2436
Merit: 1706
Electrical engineer. Mining since 2014.
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December 02, 2017, 06:22:53 PM |
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If you connect two psu's in the same hash board, the psu's might start to "fight" each other and the result is not pretty.
USE ONE HP DPS 1200 PSU FOR TWO HASH BOARDS.
AND THEN USE THE OTHER ONE HP DPS 1200 PSU FOR ONE HASH BOARD AND THE CONTROLLER.
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HagssFIN
Legendary
Offline
Activity: 2436
Merit: 1706
Electrical engineer. Mining since 2014.
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December 02, 2017, 06:26:29 PM |
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And first power on the psu powering two hash boards.
After that you power on the psu powering one hash board and the controller.
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madkao (OP)
Newbie
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Activity: 6
Merit: 0
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December 02, 2017, 06:45:38 PM |
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so I just switched it over and there is no change Any other ideas? If it is a faulty has board is there a way to buy a replacement or repair it? also looking at the status, it looks like that hash board has 8 less asics than it should
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HagssFIN
Legendary
Offline
Activity: 2436
Merit: 1706
Electrical engineer. Mining since 2014.
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December 02, 2017, 06:49:39 PM |
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See this miner servicing guide by Bitmain. https://shop.bitmain.com/workOrderGuide.htmThere are separate instructions for warranty and for out of warranty repairs. Please follow the instructions in the guide and contact Bitmain to start the repair process.
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cableiso
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December 02, 2017, 06:53:46 PM |
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I'd contact the seller immediately. That device also has a lot of hardware errors for only running 20min. Is it filled with dust?
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madkao (OP)
Newbie
Offline
Activity: 6
Merit: 0
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December 02, 2017, 06:55:32 PM |
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unfortunately I think I'm screwed... bought on craigslist and he only responded through there... have no contact info
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cableiso
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December 02, 2017, 07:11:37 PM Last edit: December 02, 2017, 07:30:53 PM by cableiso |
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Tell CL you were scammed they have his real email at least
Edit: you could also try disassembling it and blowing dust out of the hashboards with compressed air. Be careful not to knock any of the heatsinks.
That fixed the hw errors on one used unit I had. And sometimes just switching the boards positions can improve things.
I doubt you can revive the bad chips, but it looked like only a handful on one board, meaning you could get 90% performance if the hw errors could be improved.
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fanatic26
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December 04, 2017, 09:41:09 PM |
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If you had a board with shared power connectors im betting thats the damaged one. This is, for the billionth time, why you do not buy miners from random people.
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Stop buying industrial miners, running them at home, and then complaining about the noise.
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