Bitcoin Forum

Bitcoin => Mining support => Topic started by: tim-bc on March 30, 2018, 09:28:10 PM



Title: How damaging is reversing the polarity on the S9 controller board?
Post by: tim-bc on March 30, 2018, 09:28:10 PM
I wish I didn't have to ask this question, but to what extent could this board have been damaged by reversing the 6-pin pcie power connection? Also, do you think the psu is toast or could it be salvaged by splicing the pcie?

https://i.stack.imgur.com/mAKbK.jpg



Moderator's note: This post was edited by frodocooper to remove inline image tags.


Title: Re: How damaging is reversing the polarity the S9 controller board?
Post by: ccgllc on March 30, 2018, 09:30:18 PM
Ouch!  That hurts to even look at!


Title: Re: How damaging is reversing the polarity the S9 controller board?
Post by: VRobb on March 30, 2018, 09:31:22 PM
I smoked an S7 controller with a mis-wired PCIe connector (+ and - reversed).  Burned up a couple of the voltage regulators, but is probably repairable and nothing happend to the PSU and wires.  Yours looks to be much worse...


Title: Re: How damaging is reversing the polarity the S9 controller board?
Post by: HagssFIN on March 30, 2018, 09:35:55 PM
for starters, Reversed voltage --> good bye caps.


Title: Re: How damaging is reversing the polarity the S9 controller board?
Post by: tim-bc on March 30, 2018, 09:36:56 PM
Ouch!  That hurts to even look at!
If you think a controller melt looks bad, you should see the hash boards when they melt... :'(

I smoked an S7 controller with a mis-wired PCIe connector (+ and - reversed).  Burned up a couple of the voltage regulators, but is probably repairable and nothing happend to the PSU and wires.  Yours looks to be much worse...
Do you think I could still splice the one burnt pcie and keep using the power supply?