I have an Amiga 590 hard drive, but the power supply appears to be dead on it so I want to take a look inside. I have removed three screws from the underside but it still won't open, acting like there's a screw in the top righthand corner (as you look at it from underneath).

Am I missing something obvious? It looks like this underneath

1 Answer 1


The last (and only) Amiga 590 PSU I have ever seen actually had four screws, all hidden under plastic cones that need to be removed first. (All four holes visible in the picture hold a screw).

EDIT After you supplied a picture: Apparently, one of the cone plugs is still in there in the top right. The easiest way to remove the plug is to drive a self-tapping screw in there and pull it out. Below the plug, you should find the last screw.

enter image description here

  • Interesting. Mine's different. I've added a picture now.
    – Eifion
    Mar 1, 2019 at 18:27
  • 1
    Cone plug it was. It looked like part of the moulding. I didn't realise that it could be removed.
    – Eifion
    Mar 1, 2019 at 21:15

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