Post
Topic
Board Hardware
Re: Antminer S7 Batch 7 (5.05TH) three units having chain 1 & 3 problems
by
methodlimp
on 30/01/2016, 04:42:46 UTC
What kind of power supplies are you using?

3 IBM 2880 PSU with Jabberwock mods

The batch 7 uses: 1278 W (at the wall, with APW3, 93% efficiency, 25C ambient temp)
The batch 8 uses: 1293W + 10% (at the wall, with APW3, 93% efficiency, 25C ambient temp)

I'm pretty sure the batch 7 numbers are off, but with these numbers we're at 2571W per PSU for a platinum rated PSU.

I've been running these miners since the middle of december with no problem... until now.