topic 5320-16P-4XE power supply failure in ExtremeSwitching (EXOS/Switch Engine)

5320-16P-4XE power supply failure

mildlycooldad — Mon, 14 Apr 2025 02:20:46 GMT

In an effort to try and add some 10gbe to my homelab I purchased a second hand 5320 off ebay and unfortunately upon receiving it from the seller it was DOA. I had a buddy who fixes tv's take a look at it and it appears that there has been a catastrophic failure in the power supply.

The main 10A fuse is blown and the two R100 current sense resistors have mostly turned back into carbon.

my searches online for the power supply (NW-250C01 made by Asian Power Devices) I was able to find just 1 result, a second hand unit for a supply for sale on Aliexpress in Russia that works out to be ~$500AUD before shipping.

As this is not a particularly old unit I would have thought replacement or second hand parts might be easier to come by.

does anyone have and ideas where I could source a replacement as repairing this power supply is looking like a very deep rabbit hole of chasing damaged components.

thanks

Re: 5320-16P-4XE power supply failure

Gabriel_G — Mon, 14 Apr 2025 13:30:36 GMT

As the 5320-16P-4XE PSU is non-user-serviceable, it is unlikely that you'll find an exact replacement online. Even if you do find a replacement with similar specs, there could be some issue that causes the new PSU to fail in a similar fashion to the original, depending on the actual root failure.

The hardware installation guide is probably the only resource that is available on PSU details:

https://documentation.extremenetworks.com/5320%20Series%20Hardware%20Installation%20Guide/downloads/5320_Series_Hardware_Installation_Guide.pdf

Re: 5320-16P-4XE power supply failure

mildlycooldad — Mon, 14 Apr 2025 21:11:31 GMT

The switch itself appears to be operating fine when it is powered externally with 12v and 54v. Sounds like I'll just have to utilise a non-genuine power supply and deal with the warning light for a failed power supply if it's not available as a spare part.

My next issue is I cannot add it to my cloud account as it's already provisioned to someone else and the eBay user I bought it from seems to have no idea about that. How would I go about getting it removed from someone else's account?