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Author Topic: Do they sell power supplies that can power MANY antminers?  (Read 359 times)
shamoons (OP)
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November 22, 2017, 02:15:36 PM
 #1

I can't seem to find power supplies beyond 1500W. That'll basically power 1 Antminer S9. If I have 4-5, is it possible to buy a power supply to power all of them?
timk225
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November 22, 2017, 04:07:27 PM
 #2

No.
MiningDoc
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November 22, 2017, 04:26:07 PM
 #3

If you have a 220v setup you can run 1 1\2 antminer per bitmain power supply.  You can find 2400w psu but it may tax a 110v setup, wait....... Sorry you are talking about s9, then no........ I was thinking about l3+

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fanatic26
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November 22, 2017, 04:29:04 PM
 #4

Trying to run all of them off of a single giant power supply is a bad idea on so many levels.

Stop buying industrial miners, running them at home, and then complaining about the noise.
bizalaz
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November 22, 2017, 04:58:48 PM
 #5

Oh, familiar situation! Also could not find. But there are special sources that can replace it, and so - no.
shamoons (OP)
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November 22, 2017, 05:35:56 PM
 #6

Trying to run all of them off of a single giant power supply is a bad idea on so many levels.

Why is it a bad idea?
fanatic26
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November 22, 2017, 05:59:01 PM
 #7

1. Good luck finding an 9500 watt power supply.

2. You would need a 50 amp circuit and some heavy duty wiring to even try and run a PSU of that size.

3. You are introducing a single failure point for multiple units.

4. Imagine the rats nest of cabling required. You are talking a single PSU with 50 PCIe connectors.

5. It is cost prohibitive. Any PSU with that kind of output would most likely cost thousands of dollars even on the secondary market. Or you can buy 5 $100 PSUs....

etc

etc

etc


Stop buying industrial miners, running them at home, and then complaining about the noise.
QuintLeo
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November 22, 2017, 11:48:29 PM
 #8

I can't seem to find power supplies beyond 1500W. That'll basically power 1 Antminer S9. If I have 4-5, is it possible to buy a power supply to power all of them?

 For standard ATX supplies, 1600 watts is the limit because they're all designed to be useable worldwide - which INCLUDES the USA with it's very common 15 amp 110 volt circuits that anything bigger WOULD OVERLOAD.

 For server supplies, outside of "specific designs for mainframes" and such, the largest widely available PS I'm aware of is a Delta model that is rated for 2400 CONTINUOUS watts output with 220 volt input.


 For perspective, a 30 amp 220 circuit (which is common in data centers, usually on a L6-30 "drop cord" from "tracks" hanging from the roof) is only good for about 6.6 KW INTERMITTANT usage, or a little over 5 KW 24/7 continuous usage - which fits *2* of those Delta supplies comfortably on one circuit.


 Keep in mind that the power density of ASIC Cryptocoin mining machines is extremely HIGH compared to almost ALL computer hardware - most file servers and web servers use less than 300 watts in a 1u case, which has MORE cubic inches than a Bitmain S9 or any other similar-form-factor ASIC miner.

 It's also why you aren't seeing ANY miners hit wide distribution with a power draw "at the wall" much over 1400 watts.


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NotFuzzyWarm
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November 23, 2017, 01:11:08 AM
Last edit: November 23, 2017, 01:35:12 AM by NotFuzzyWarm
 #9

Trying to run all of them off of a single giant power supply is a bad idea on so many levels.
Why is it a bad idea?
This should show why it can be a VERY bad idea:

That *was* an s7 belonging to Finsky, one of several being fed off of a IBM 4kw server supply. No fuses in the PCIe supply lines so when something shorted in the s7 that monster PSU was more than happy to dump well over it's rated 333.333 amps into the fault to produce some impressive fireworks. The PSU never crowbar'd - it tripped AC breaker feeding it first...

More pics of this horror show here in Finsky's thread about it.

'Nuff said?

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November 23, 2017, 01:20:12 AM
 #10

Trying to run all of them off of a single giant power supply is a bad idea on so many levels.

Why is it a bad idea?
When a single miner has a short, the supply will dump 10kw of power into that chip. Result is what is called a plasma fire.
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