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July 20th, 2025 12:37
Dell T1700 SFF PSU part number compatibility
Hi All,
I have a T1700 SFF as a home server and it appears the PSU has given up overnight.
The Power LED code is 2-2
PSU self-test does nothing
Changing the CMOS battery did nothing
It is the second time in two weeks that the server has powered off but this time it won't turn back on.
The part info on the suspected failed unit is:
Delta Electronics
D255ES-00
DP/N: 03XRJ0
80Plus Gold
Most replacement units online are:
Lite-On
L255ES-01
DP/N: 0FN3MN
80Plus Bronze
The only difference I can see between the two, is the Delta is 80Plus certification.
Are they truly interchangeable?
Does anybody know if one is a future revision of the other?
Cheers!
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Chino de Oro
9 Legend
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July 20th, 2025 13:05
I'd used them on OptiPlex before. They are both with 80 Plus certification and are interchangeable. The OEM Lite On with Dell part 0FN3MN is still actively available from Dell
https://www.dell.com/en-us/shop/dell-255w-power-supply/apd/cpx-fn3mn/computer-chassis-components