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Author Topic: Help starting an IBM 2900W PSU  (Read 2663 times)
tvasbn (OP)
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March 31, 2015, 06:15:13 PM
 #21

You can not really securely soldering enough cables to use this PSU efficiently, so you are probably better off buying a breakout board.

i will conect the PCI cables to the PSU out whit:




Yes I am aware of this,  but you can only connect 12 wires total using these.  You need 22 wires to full use this PSU for miners like S5's

Unless you philipma's method.

this conectors(only yellow and full insulated) will be mounted on 6MM cable, and on that cable i will conect the 4 PCI cables(16 cables), i done that whit some 2000W PSU and they work great

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March 31, 2015, 06:21:46 PM
 #22

I know from experience how warm the terminals on a DPS2K can get when drawing full power through all EIGHT power blades. You're drawing how much power through four? I would not recommend what you are doing there, nor would I trust it to not be a fire risk.

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March 31, 2015, 06:40:22 PM
 #23

I know from experience how warm the terminals on a DPS2K can get when drawing full power through all EIGHT power blades. You're drawing how much power through four? I would not recommend what you are doing there, nor would I trust it to not be a fire risk.

Agreed. Why only use half of the available pins? Clean setup, though.
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March 31, 2015, 11:41:32 PM
 #24

A ) I said if I had 240 I would use the boards and not solder.
B ) I have a gas dryer a gas oven.
C ) I have a circuit that I can convert to 240 volts and I know how to do it. Just lazy.

 I also have drawn the conclusion that this winter passing is the end of my  6kwatt mining in house setup So I won't need to convert  that circuit back to 240 volt.

No connection to any board is as sturdy  as a connection to those grounding bars and the shame of it is.
 a simple breakout board that would have allowed easy hook up to grounding bars  would be safer.

Since the psu would be rock solid along with the grounding bars. Knock an s-5 off of  a shelf or an sp20 off  of a shelf  and your breakout board takes a hard hit.

Knock the same miner of a shelf and those grounding bars are rock solid with 0 stress to a rock solid mount psu.

A psu with 2500 plus watts.

As soon as you do decide to wire up that 240V circuit, let me know and I will send you a test unit.  You'll be surprised at how sturdy the boards are when assembled.

I agree about the winter ending, my 12kW of hardware is about to become a lot warmer, and more expensive...

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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