Discussion How to convert Server Power Supplies

Thought it might be useful to gather this in the one place.

The practice of converting computer SERVER power supplies to make a very high quality high power supply at low cost is attractive. It doesn’t normally require any modification to the supply but the hard part is figuring out how to trick them into turning on. Far and away the best way is to find someone who has already done it. I have put down a few references I know about and welcome additions.



This is NOT about converting normal PC power supplies. (The ‘ground the green wire and add a load resistor’ stuff). That is covered extensively elsewhere.



Please, please. This is a REFERENCE thread. Just post a link (with comments) to other posts that show how to do it if you know of one that isn’t here.



IF YOU HAVE AN OPINION OR JUST WANT TO COMMENT please do it somewhere else (like the original threads for example or PM me). Obviously info on sources of supply for these devices is welcome though – please post that if you know it, as well as any errors that need correcting.



Hope this proves useful.

John



Various threads containing information on converting different supplies.





1) The original IBM Series 235 Supply which started it all.

http://www.rcgroups.com/forums/showp...33&postcount=3





2) A simple high quality 12Volt 100Amp Power Supply thread starts here

http://www.rcgroups.com/forums/showp...97&postcount=1



This is my thread on the HP PROLIANT DL580/ML570G3 which is a 12V 1300Watt supply. It's still my favourite for quality, power, small size and having a proper plug for the power cord BUT it's extremely noisy because of the two small high speed cooling fans. Most people will find its vacuum cleaner impression a PIA. Note that you have to take care to identify exactly which supply by the part number. There is a range of DL580 computers with different supplies.



3) The Compaq HP ESP114 Series 12V 55A Power Supply thread starts here

http://www.rcgroups.com/forums/showp...73&postcount=1



This is earlb's thread on converting these. Probably the most popular and best solution. Decent power but much quieter because they are bigger. Easier to obtain and cheaper as well

The attached picture shows the HP 1300 Watt and ESP114 side by side (thanks earlb). The SMALLER one is the more powerful 1300W supply.



4) Dell A570P-00 570W

http://www.rcgroups.com/forums/showp...&postcount=130



5) Compaq Proliant 169286-002 750W

http://www.rcgroups.com/forums/showp...&postcount=128 plus

http://www.rcgroups.com/forums/showp...&postcount=141



6) Sony APS-111 12V 33.3A (Used in CISCO gear). Also known as Ascom Energy Systems Galaxy D0009237

http://www.rcgroups.com/forums/showp...63&postcount=4



7) HP Power Supply DPS-600PB/700CB

http://www.rcgroups.com/forums/showp...&postcount=253



8) hp PS-3381-1C1 PSU

http://www.rcgroups.com/forums/showt...=358340&page=2



Using two supplies in series to get 15 or 24V at high power.



Two of the DL580/ML570G3 supplies for example will supply 2600W at 24V on a 240V supply! Here’s the thread I started on the practice of connecting two supplies in series to get 24 Volts at high current. Becoming more relevant with the growth of 1000Watt chargers. Feathermerchant on the forums sells these already made up if you don't feel you have the knowledge to do it yourself.



9) Using two power supplies for higher voltage/capacity chargers: safety issues

http://www.rcgroups.com/forums/showpost.php?p=13992510&postcount=1

See post 183 in particular for conclusions.












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