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Author Topic: How many R4s can I run on an APW3 running 220?  (Read 357 times)
Entropize
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January 19, 2017, 02:14:13 AM
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I just ordered some R4s and I have an APW3 on a 220 outlet, can I run 2 R4s on that one power supply?

I have a couple of APW3s so is running one power supply for each R4 better?

Should I just bite the bullet and get an APW5?

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GWhisper
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January 19, 2017, 02:18:38 AM
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A single R4 can pull between 845-921W, the APW3 is rated to 1600W regardless of input voltage.
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January 19, 2017, 02:27:40 AM
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So one Psu per R4 until an APW5 can be ordered, thanks.

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January 19, 2017, 04:06:33 AM
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You can check my sig for some very good alternatives to the APW5 as well.  I have a DPS-4K PSU that could power 4x R4's, or the IBM 2880W that could power 3 of them.

IBM 2880W PSU Packages: https://bitcointalk.org/index.php?topic=966135 IBM 4K PSU Breakout Boards & Packages: https://bitcointalk.org/index.php?topic=1308296 
Server PSU-powered GPU rig solutions! https://bitcointalk.org/index.php?topic=1864539  Wallet address: 1GWQYCv22cAikgTgT1zFuAmsJ9fFqq9TXf 
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January 19, 2017, 05:46:17 AM
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I'm looking for the most efficient setup for 2 R4s in a home on 220 so any insight is welcome on better PSUs

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January 19, 2017, 05:52:07 AM
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IBM 2880W is not suitable for home due to noise.  DPS-4K is overkill for 2 units, but leaves room for expansion if you wanted to go that route.  Economically speaking it's a toss-up (in comparison to APW5), but there's nothing wrong with Bitmain's PSU's. If you have APW3's use them!

IBM 2880W PSU Packages: https://bitcointalk.org/index.php?topic=966135 IBM 4K PSU Breakout Boards & Packages: https://bitcointalk.org/index.php?topic=1308296 
Server PSU-powered GPU rig solutions! https://bitcointalk.org/index.php?topic=1864539  Wallet address: 1GWQYCv22cAikgTgT1zFuAmsJ9fFqq9TXf 
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