I have a Linux server with a 1TB WD green hard drive. Last night it was making like a whistling type sound off and on. I guess it was doing a lot of things.
About a hour leter it just turned off! I could not get it to go back on. I used another 12 volt 5 amp brick power supply and that worked. So in the morning today I cracked open the bad brick power supply to see if I could see any thing wrong. I found 2 puffed up capacitors in it. Unsolder them, and I all ready had some here. Solder them in and hooked it up to my small Linux Ubutnu server and it's working. So the bad capacitors were it.
But no problums with any thing when it came back up. The WD green hard drive made it though that bad power.
It gets it's power from a
little picoPSU-90. But it was the 12 volt brink that went bad now fixed.
-Raymond Day