How to build a atx adapter without soldering for Gigabyte MJ11-EC1 EPYC 3151

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Zenfan90

New Member
Nov 26, 2024
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Hello fellow home server enthusiasts

I am trying to build a a small NAS and I buyed an Gigabyte MJ11-EC1 EPYC 3151 but without the ATX adapter with no option to buy this adapter separately I need to build something.

I tried asking in this Forum thread


but no one answered to that and yeah not best explanation I made but hoped for more than nothing

So this is the Guide I can use


But I can not solder and do not have an Original Gigabyte Connector at hand.

My Idea is to use an 24 pin Atx to 24 pin Atx extension cable female to male and cut of the other side and of course I can not stick the wires raw in to the board.

So my only question is what can use to securely connect the 4 needed wires to the 4 pins on the Motherboard and mind the pins are even smaller than the GPIO pins on a Raspberry pi 5 as I was inspecting it?

Kind regards ZenFan90
 
unwind-protect

unwind-protect

Active Member
Mar 7, 2016
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You can stick mutimeter probes into mainboard power connectors. They hold pretty well. Whether they provide enough power without smoking has to be tried.
 
Z

Zenfan90

New Member
Nov 26, 2024
8
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1
unwind-protect said:
You can stick mutimeter probes into mainboard power connectors. They hold pretty well. Whether they provide enough power without smoking has to be tried.
Click to expand...
Well thank you for the suggestion but I need it the other way around to stick something to the wire then stick that on the 4 pins of special Gigabyte connector on the board

I am thinking something like what you stick on the GPIO pins of the Raspberry pi but I do not have any at the moment and it only needs to transfer 5 V over to the 4 pins so that should not be that difficult
 
Z

Zenfan90

New Member
Nov 26, 2024
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Yeah I made it nearly so just use an 24 pin to 24 pin ATX male to female extension cable and extract the for needed cables without breaking something follow the guide from Ram König and directly insert the cables for testing to the pins on the motherboard that works but I do not have ram at the moment so Only IPMI at the moment

and the final version I should just put the 4 cables into this

2204748-2 | DigiKey Electronics

Heute bestellt, heute ausgeliefert. 2204748-2 – 4 Rechteckige Steckverbinder - Gehäuse Buchse Schwarz 0,118" (3,00mm) von TE Connectivity AMP Connectors. Preisgestaltung und Verfügbarkeit für Millionen von elektronischen Komponenten von DigiKey.
www.digikey.at www.digikey.at
 
Z

Zenfan90

New Member
Nov 26, 2024
8
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Well give up building an ATX adapter.last week I bought a PSU with the connector already on and it turn on but maybe I have a bad motherboard or I have problems with the Ram I got

there is a picture of Fedora Server booting Kernel 6.6

and on Saturday I had 3 successful boots and used Fedora Server directly via the monitor or via the cockpit webui
but after that no luck booting and all default settings after clear Cmos
 

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