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The power supply in the 316/516/716/EDA500 is a standard Flex ATX, aka mini-ITX. Unlike the legacy units that use a similar supply, it does have the fan and uses a standard pin-out. So, it is easy to find a replacement. I don't recall the wattage, however, and my parts unit is in my storage unit, so not easy to check. But it's pretty easy to remove and look at the label on it. Look at the overall wattage and the individual 3.3, 5, and 12V ratings when selecting a replacement and get something as powerful or more.
My parts 516 is a parts machine because it has a short somewhere on the main board, which I thought was probably a power supply issue when I took a gamble buying it. It's probably a shorted capacitor, but it's hard to figure out which one without a schematic. So, here's hoping yours really is something as easy to fix as the power supply.
Thank you for all your Informations. That was a huge help.
I've dismountet NAS to check the PSU model.
DPS-200PB-186A
I found some similiar models like 185A. i'm checking now out with dealer if it fits.
thank you
Not even close. The DPS-200PB-186A may look like it has a similar case, but it supplies an entirely different set of voltages and has different connectors.
The overall rating is 200W, but what are the rated wattages for 5V, 3.3V. +12V, and +5VSB on the original? There are plenty of 300W flex ATX supplies that should be more than enough to replace it. Be careful if shopping on eBay, though, as I see a lot of supplies there labeled "Flex ATX" that are not. A top-mounted fan is a dead givaway it's not.
They are abundant on eBay, Amazon, NewEgg, etc. Just doing a real quick search and checking amperages and price, this one on Amazon looks like a good choice: Apevia-ITX-AP300W-Mini-ITX-Solid-Supply
