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Author Topic: Ready to start mining - Need recommendation for S9 power supplies  (Read 467 times)
Rombob
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January 06, 2017, 01:11:45 AM
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Greetings,

I live in N. Central WA so my power is cheap and I have a basement I need to heat.  It's already got 2 20A 240v cicurits I had pulled for space heaters. I have two 200A panels already, so I can add more as needed.

I want to start with two S9 miners.  Is there a power supply that can run two off one 240V circuit?

What are my power supply options if I want to run 4 - 8 S9's? Could I pull a larger circuit like a 50A to run 4 miners?

Thanks for any input in advance.

Dean
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NotFuzzyWarm
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January 06, 2017, 02:06:22 AM
Last edit: January 06, 2017, 02:27:29 AM by NotFuzzyWarm
 #2

Greetings,

I live in N. Central WA so my power is cheap and I have a basement I need to heat.  It's already got 2 20A 240v cicurits I had pulled for space heaters. I have two 200A panels already, so I can add more as needed.

I want to start with two S9 miners.  Is there a power supply that can run two off one 240V circuit?

What are my power supply options if I want to run 4 - 8 S9's? Could I pull a larger circuit like a 50A to run 4 miners?
Thanks for any input in advance.
Dean
By and large I recommend the Bitmain APW3 PSU's, 1 per-miner. Using those the s9's will pull 6.3A each using 208v (my power strip at work (208v fed from 30A breaker) reads 19A with 3 on it) and probably around 5.8-6A each when fed 240v. 3 on a 20a circuit is quite doable BUT expect the breaker/wire/socket to get a bit warm.

2 s9's with the APW3's per 20a circuit is perfect.

Stay away from ATX supplies. Period.
See https://bitcointalk.org/index.php?topic=1739630.msg17410914#msg17410914 and the post following that for a quick 'why'.

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Finksy
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January 06, 2017, 04:36:43 AM
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For server PSU's, you can see the threads in my signature.  The IBM 2880W PSU's are perfect to power 2x S9's each off a single 240V circuit, however the fans on them are excruciatingly loud, making them generally unsuitable for home mining unless you have a sound isolated room.  I also have packages for 50A circuits including PDU's for either style of PSU.

IBM 2880W PSU Packages: https://bitcointalk.org/index.php?topic=966135 IBM 4K PSU Breakout Boards & Packages: https://bitcointalk.org/index.php?topic=1308296 
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sidehack
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January 06, 2017, 05:55:34 AM
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I've had good luck with DPS1200 on 208V driving S7 and S9 on 208V in my hosting. 240V should run them a little bit better.

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Rombob
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January 06, 2017, 06:06:31 AM
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Finsky, that's exactly what I'm looking for.  I'll order from you once I get the S9 ordered.  Thanks
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