Big ass power supplies - Modding a server PSU

[Sweminer777]

i i saw this on ltc forums, it was intressting to post here too.




Ok well I was recently introduced to this and considering how much cheaper this appears to be I figured I'd start a thread on it.  Feel free to make suggestions etc. Some of you know I'm looking for a PSU for the cards I recently bought and the thing I'm having a hard time getting over is that even an ATX 1600 watt PSU probably won't be enough even if I only use it to power the cards. On top of that they are at least $250-$400. 

You can find DPS-2000BB sever supplies used for a fraction, typically about $40-$50 shipped and they supposedly can do 2000 watts. Some things to note is that they only work on split phase 240v, they have about a 92% efficiency at 50% load and typically 90+% for most any load.  They have an IEC C19 power socket on them. 240v receptacles use NEMA 6-15 or 6-20 configurations; the 15 and 20 indicates the current rating of the receptacle. 

Here's a link to a post regarding how to get these things to turn on:
http://www.rcgroups.com/forums/showpost.php?p=18117345&postcount=611




Here's a link to the receptacles you could use:
http://www.amazon.com/Leviton-5822-W-Receptacle-Commercial-Grounding/dp/B000U3I1S0/ref=sr_1_8?s=hi&ie=UTF8&qid=1370469139&sr=1-8&keywords=250v+20+amp+outlet

Here's a link to the power cord you could use:
http://www.amazon.com/6-20P-C19-Power-Cord-Foot/dp/B004WJRMVU

Here's a link to Molex PCIe 8 pin plug:
http://www.alliedelec.com/search/productdetail.aspx?sku=70190596


Here's a link to Molex PCIe 6 pin plug:
http://www.alliedelec.com/search/productdetail.aspx?SKU=70190637



Here's a link to Molex PCIe 2 pin plug:
http://www.alliedelec.com/search/productdetail.aspx?sku=70190678


Here's a link to Molex PCIe 8 pin socket/receptacle:
http://www.alliedelec.com/search/productdetail.aspx?sku=70190605


Here's a link to Molex PCIe HCS female crimp terminals 16ga. tin:
http://www.alliedelec.com/search/productdetail.aspx?SKU=70091071#tab=specs

I'll finish this up a little later.

[alh]

In case it isn't obvious to you, there is already a "cottage industry" that does this already. I expect with some research you'll find somebody that already sells a "plug in board" to match the socket on the IBM PSU with PCIe cables galore out the back side.

You might want to be more specific in the title of this in terms of the specific PSU, since there are already a bunch of post for other power supplies (e.g. Dell,HP, IBM, and so on).

Probably the most common "big ass" power supply I am aware of is the IBM 2880W for which there is a plug in as I mentioned. It too is 220V only.

[Sweminer777]

Indeed, but might be technicians who want's to do it at home it.s not that difficult




http://www.digikey.com/product-detail/en/51762-10802400ABLF/609-4020-ND/1492063

[NotFuzzyWarm]

Thank you. I already use and highly recommend the breakouts from GekkoScience but have been trying to find just that connector plug http://www.digikey.com/product-detail/en/51762-10802400ABLF/609-4020-ND/1492063 and control pinouts so I can roll my own.