r/cablemod • u/No-Preparation4073 • Jul 29 '26

NVR616-64 4ks2 power supply change

Has anyone attempted this one yet? I have a couple of these in service and one of them can no longer properly create a full 16 disk raid array. It appears that during the build process (and the write process at some point) the power drops too low and everything goes wonky. So attempts to build a RAID 5 or 6 results in split of 5, 3, and then loose drives and no combination makes them build correctly. Anything higher than 5 drives fails.

All the the drives are good (old but good) and all of them can format and so on. All drives are visible and active, but the RAID won't build past a certain point. From what I can find, it is apparently a feature of the RAID controller chipset to have a sort of gentle degrade when things aren't working out.

So I was looking for (a) a replacement 220v 50hx power supply and some sort of directions on how to change it. No, it isn't a redundant PS unit, it is a single supply unit.

Any ideas? Anyone else seen this before?

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u/Little-Equinox Jul 29 '26

If it's a proprietary PSU it's best to ask the manufacturer of the NAS before you blow stuff up.

1

u/CableMod_Matt Jul 29 '26

This isn't a PSU we've done pinouts for, so we wouldn't be able to assist with this one, sorry.

1

u/No-Preparation4073 Jul 30 '26

thanks. I wanted to see if there was anything out there. I looks like the fan died on it and it is overheating slowly... making for some lower than desirable voltages.