Over the last year, we've seen our T15s drop from over 100 to under 50 on our farm. Today, I managed to get through all the broken units and found out that the PSU, the APW8, was the faulty part in almost every case. I figured this out by swapping in a working PSU on the 50 dead T15s, one by one. Almost all the hashboards, control boards, cables, and fans were in good shape, just the PSU was the problem. Some units were completely dead, while others were just failing to deliver power properly. So now, I've got 50+ T15s that are perfectly good, just without their PSUs.
So, here's my dilemma: Should I hunt down 50 used APW8s to get these miners back online? Or should I just cut my losses and sell off the working hashboards and control boards? Has anyone here dealt with this kind of PSU? If I buy more, are they likely to keep failing at this same rate?
Issues with Antminer T15s and APW8 Power Supplies
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hodler2019Legendary
Posts: 2182 · Reputation: 12913
#2Mar 8, 2022, 02:50 AM
if you can clock to low they won't burn quickly
but if you set to high they will all burn out.
I found this to be true with my t15's and my s15's they use the same psu. and they pull too much juice to run on high.
Wow, Bitmain really screwed the pooch on these then. Good to know. Wish I'd known a lot sooner lol. Do you have any experience repairing these PSUs? I don't have a PHD in power science but would be willing to try.
coin_sigmaLegendary
Posts: 1275 · Reputation: 5553
#4Mar 8, 2022, 12:47 PM
You can try to repair those dead PSUs there might be burned parts inside the PSU sometimes busted capacitors or rectifiers or maybe an open fuse replacing them could fix the issue.
I searched a bit it seems that ZeusBTC has a guide on how to repair this PSU so I suggest you follow their step-by-step guide from this link below.
- https://www.zeusbtc.com/manuals/Antminer-APW8-Power-Supply-Repair-Guide.asp
If not, hire an Electronics expert to repair your PSUs.
Id go a step further and say if the metal capacitors by the power rails look exploded or leaky this is the only repair you can make without the electronics expert. They are the aluminum capped ones with the blue or red striped on the side.
J