Question Converting Seasonic PSU connectors (SSP-250SUB TO SS-250SU)

[Aus_Hardware_N00b]

Hi all,

First time poster, long time viewer and reader.

I have a old Synology NAS that has the PSU fail on it after a physical move.
The old PSU is a Seasonic SS-250SU, I bought a replacemenet (what I thought was a direct replacement off Ebay) and I got a slightly different PSU (Seasonic SPP-250SUB).

I am wondering.
Can I rewire the new PSU connectirs/wiring to supportuse the old connectors where they dont match?
(Mainly the boxes in green and yellow in the below picture.)

Link to the picture diagram showing the connectors (old vs new)

https://ibb.co/HPNyCss

Thanks in advance

 

[SandwichMaster]

Hi, yes, that should be fine - match up the colours, black is ground (0V), red is +5V, yellow is +12V, normally, on a standard ATX supply. Standard precautions apply, don't short it out, or connect the 12V to the 5V rail or anything like that and it should be fine.

 

[USAFRet]

STOP​

It is far more than just 'color matching'.

You NEED to verify the actual pinouts, between old and new. For ALL pins.
Seeing as the old PSU is apparently dead, this will be rather difficult.

Personally, I'd return it and get the correct one.

 

[SandwichMaster]

Each to their own. Those are both standard FlexATX supplies, both compliant with the spec - I'd be happy taking the connector from the old one and fitting the new wires to the right places.

 

[USAFRet]

Each to their own. Those are both standard FlexATX supplies, both compliant with the spec - I'd be happy taking the connector from the old one and fitting the new wires to the right places.

Being the same brand, maybe.
But if they are "the same", then why the different connectors?

This is why you verify before doing anything silly, like plugging it in.

"I'd be happy" is all well and good, if it is not your equipment that may get hosed.
Or if you do a half assed job and it doesn't quite work right.

 

[SandwichMaster]

There are different versions of ATX, with different connectors. This page is pretty comprehensive: https://www.tomshardware.com/reviews/pc-interfaces-101,1177-20.html

 

[USAFRet]

There are different versions of ATX, with different connectors. This page is pretty comprehensive: https://www.tomshardware.com/reviews/pc-interfaces-101,1177-20.html

And all I'm saying is verify, before cutting and soldering.
We have 2 different PSUs, that may or may not be 100% equal.

Verify, instead of assuming A == B.