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Dell DA-2 to any output adapter  

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timginter
(@timginter)
Eminent Member
Joined: 2 years ago
 

Thanks to @nando4 for his https://egpu.io/forums/psu-cables/us3-dell-da-2-pcie-splitter/ topic

 

Based on what he wrote, I wanted to create a neater way to connect my 2x Dell DA-2 PSUs for a new project I'm working on. I couldn't find any ready-made adapters (at a sensible price) so I started tinkering myself.

The 8pin output on Dell DA-2 fits into 24pin or 20pin female ATX connector, you can plug it on either side of the sticking out plastic clip in the middle - this makes a really easy DIY, cheap, universal and paper-clip free DA-2 plug 😉

 

Required parts:

  • any 24 or 20 pin ATX extension cable, around £3 on eBay
  • any output connector/cable you need. I tried it successfully with:
    • barrel jack for lower power output, I can recommend one with screw terminals for really easy installation. CHECK CONNECTOR SPEC - most 5.0x2.1 jacks are rated for 5A only, highest I found was 8A!
    • male 6+2pin PCIe (which would then connect into female 6pin PCIe splitter like in @nando4 's post above)
    • XT60 / XT90
  • sharp knife or scissors and/or small cable cutters
  • nose snipe pliers
  • heat-shrink to protect wires from short-circuit (may not need it for male 6pin PCIe or shielded XT60/XT90 connectors)
  • multimeter (ideally to double-check polarity, but if you're careful you won't need it)

 

Steps:

  • Unplug your DA-2 from mains! Then, plug the 8pin Dell DA-2 into female ATX connector
  • Pull the cables you don't need from the female ATX connector - check the photo below - you should be left with 7 cables:
    • 4 cables on the side of the clip (3 Ground and 1 Remote, google or double-check nando4's topic for pinout)
    • 3 cables on the "bottom"

https://drive.google.com/file/d/1YZzCpgwkpidry3jsPcHVi8ENkYSthUGU

  • Cut off the parts of the connector you don't need. I just cut roughly with a knife and then cut the sticking out parts with small cable cutters:

https://drive.google.com/file/d/1Yctd6MONP9NyPOnzgaiS9soJBPCNqtiO

  • Pull the remaining cables from the male-side of the ATX extension cable - if you pull them straight out, they should come out with the little pins still attached to the cable:

https://drive.google.com/file/d/1YeQugQvwfjoKqTOhZ88KPwThMffdfVjm

  • You have a base for your connector! If you need a male 6pin PCIe output, you can carefully push the metal pins into the male 6pin PCIe with snipe nose pliers. Or, cut the cables if you need bare wires (e.g. to solder or for screw-locks), just remember to put the shrink-wrap if bare wires would show/stick out after connecting to your output.
  • The cable for DA-2's Remote pin needs to be connected to any of the Ground cables to activate the PSU - when you connect/cut the cables, just add the Remote cable to one of the Grounds.
  • Tripple-check the pinout and which pins are 12V+ and which are Ground - connect them correctly to your output of choice! After connecting/soldering, if you have a multimeter, check that polarity is correct on output. If you don't have a multimeter, trace the cables and quadruple-check that 12V+ from DA-2 are going to (+) on your connector, and Ground from DA-2 are going to (-) or Ground on your connector, and that Remote cable from DA-2 is also connected to (-) or Ground on your connector

 

I needed a DA-2 to male XT90 and DA-2 to male 6+2pin PCIe connectors.

PCIe was really easy, took around 15 minutes with testing, the Remote cable stripped and wrapped around the adjacent Ground pin. Other Ground pins had the extra 2pin connector cables wrapped around them. I put a drop of loctite/superglue where each cable went into the male 6+2pin PCIe, just to hold the cables a bit better when I'm pulling the conector out of my GPU.

The XT90 took a bit longer with soldering, still really easy. I just soldered the Remote cable to the (-) on the XT90 along with the rest of the Ground cables - all works like a charm:

https://drive.google.com/file/d/1Z6WbJEhNTuBfgbVi_-pUM2F3aHoQRbJB

 

Without the locking pin, the adapter has a similar locking strength to a laptop's power jack. You can probably make a simple hook or even cut it from the original female ATX connector and glue it in the right place, but I'd recommend disconnecting the DA-2 by pulling the adapter out so the PSU doesn't stay active when not used (Remote no longer shorted with Ground)

This topic was modified 3 days ago

Clevo N141ZU + Win10 + M.2 ADT R3G + Zotac RTX 2070 8GB Mini
Clevo N141ZU + Win10 + M.2 ADT R3G + Asus GTX 1060 6GB STRIX OC
Lenovo x230 + Win8.1 + EC PE4C V3.0 + Asus GTX 1060 6GB STRIX OC
Lenovo x230 + Win8.1 + EC PE4C V3.0 + Asus GTX 950 2GB STRIX OC
https://egpu.io/forums/psu-cables/dell-da-2-to-any-output-adapter

 
2018 14" Clevo N141ZU [8th,4C,U] + GTX 1060 @ 32Gbps-M2 (ADT-Link R43SG) + Win10 // 5cm NVME extender used to create pluggable NVME port [build link]  


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itsage
(@itsage)
Illustrious Member Admin
Joined: 4 years ago
 

@timginter, This is a clever use of existing connectors to build your own. Thank you for sharing the steps!

 

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2021 15" ASUS TUF Dash F15 [11th,4C,H] + RTX 3080 @ 32Gbps-TB4 (AORUS Gaming Box) + Win10 2004 // my 3rd RTX 3080 build [build link]  


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timginter
(@timginter)
Eminent Member
Joined: 2 years ago
 

thanks, @itsage

 

Second 24pin extension came today. I edited the first post and added photos of finished connectors - male XT90 and male 6+2pin PCIe

Clevo N141ZU + Win10 + M.2 ADT R3G + Zotac RTX 2070 8GB Mini
Clevo N141ZU + Win10 + M.2 ADT R3G + Asus GTX 1060 6GB STRIX OC
Lenovo x230 + Win8.1 + EC PE4C V3.0 + Asus GTX 1060 6GB STRIX OC
Lenovo x230 + Win8.1 + EC PE4C V3.0 + Asus GTX 950 2GB STRIX OC
https://egpu.io/forums/psu-cables/dell-da-2-to-any-output-adapter

 
2018 14" Clevo N141ZU [8th,4C,U] + GTX 1060 @ 32Gbps-M2 (ADT-Link R43SG) + Win10 // 5cm NVME extender used to create pluggable NVME port [build link]  


itsage liked
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