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May 20, 2016, 12:01 AM
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EMERSON - CISCO N55-PAC-750W 25+10 pins
Last edited by Gokmen; May 20, 2016 at 12:33 AM.
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May 20, 2016, 05:47 AM
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Artesyn Model 7000758 - 0000 REV: A
Jun 03, 2016, 08:00 PM
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Complete instructions for a dual HP DPS-1200

This is the best detailed "How-to" on making a 24V supply from the very popular DPS-1200 supplies I have come across. Extremely detailed step by step instructions with clear photos. Very nicely done.
Last edited by jj604; Jun 27, 2016 at 04:25 PM. Reason: Updated URL
Jun 05, 2016, 05:54 PM
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Backplane connectors

If you prefer to connect to a server power supply with the correct mating connector rather than directly solder to the power and control pins, Digikey have a comprehensive range of them.

They are listed under "Backplane Connectors - Specialized" and it looks like some of the more common connectors are the Amphenol PwrBlade series.

You can browse and look for a matching one and check if it is correct by downloading a pdf of the specification sheet. The link for PwrBlade connectors is:

There are lots of other brands and the Digikey site has a useful filtering system that can narrow the search.

Big thanks to irun4fundotca who alerted me to this.
Jun 27, 2016, 03:41 PM
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Originally Posted by jj604
This is the best detailed "How-to" on making a 24V supply from the very popular DPS-1200 supplies I have come across. Extremely detailed step by step instructions with clear photos. Very nicely done.
Updated my blog post to address a couple of errors, and messed it up a bit. . . the system changed the URL, so I thought I'd post the updated one.
Jun 30, 2016, 06:04 PM
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Compaq DPS-600 CB A in series
Jul 08, 2016, 06:45 AM
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Astec AA23340 (Cisco Catalyst 6500) Voltage adjustment

Hi, To increase voltage output from 40v-47.5. I have carried out this mod on several units and works well. Attatched photos shows fitting of a 39k resistor on top panel.
Jul 24, 2016, 04:57 PM
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Excellent "How-to" for twin DPS 800gb

This post has an excellent series of clear pictures showing the build of a twin 24V HP DPS 800gb setup.
Aug 02, 2016, 06:34 PM
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DPS-600PB OVP disable

Lets a DPS-600 voltage go to 14.5V
Aug 10, 2016, 07:26 AM
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Dell dps-800jb

Short thread with solution
Aug 22, 2016, 05:19 PM
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Ready made solutions

These PS are popular with Bitcoin miners and others as well as modellers and a number of ready made solutions have appeared. There are a number of established vendors selling supplies already converted and ready to go.

In addition however there are also a couple of connection units ready to plug into the very popular DPS-1200 and DPS-800 powers supplies for people who don't want to do any soldering or modding. RCGroups member vimy g eaou has confirmed that these units are of excellent quality.
His eBay shop is here.
Sep 15, 2016, 05:24 PM
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Dell A930p power supply from Power Edge 2900

Update to post #129.

The thread now includes a full pinout description of the supply as well as instructions to get it working.
Oct 03, 2016, 09:04 AM
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The DS760SL-3 is a slim and very silent server power supply. I picked it up for $10 at Wierd Stuff Warehouse in Palo Alto.

The fan start intermittently only when you reach about 300-400W output in a 20 degrees C room.

Buy it from digikey if you have lots of money:

Datasheet here:

From the datasheet you read that both PSON and PSKILL must be pulled low for the PSU to operate the +12vdc output. I did that, and then (and only then) did the +12vdc output turn on. Please see attached screenshots and pictures of the specifics.
Oct 15, 2016, 09:29 AM

IBM x3650 M2 Type 7947 AcBel FS7023

AcBel FS7023 pulled from an IBM x3650 M2 Type 7947

T1 T2 T3 T4 T5 T6 T7 T8 12V+
B1 B2 B3 B4 B5 B6 B7 B8 GROUND

Jump T1-T2 (T1 is ground).

Temporary jumping B8 to T1/T2 makes the fan speed go to 100%, disconnecting it afterwards the fan settles back down.

Seems to work just fine.
Last edited by matthewhale; Oct 15, 2016 at 09:37 AM.
Oct 15, 2016, 09:20 PM
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DL580 & HP "Common Slot" pinout

Details of the pinout of the PSU connector slots for this series of supplies are linked in this post.
Last edited by jj604; Oct 17, 2016 at 08:47 PM.

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