Although I haven't done it before, its got to be one of the easiest operations ever (not as difficult as setting up a probe station for leakage current measurements on 300um solid state detectors anyway!)... I'm starting to wonder if the HD is **cked
I take apart the A1200, and carefully lift the k'board. I put the 2.5" HD on the mounting bracket and carefully plug it in to the pins on the mobo. I plug in a PSU, switch it on, and......nothing, no LEDs on the miggy, no floppy drive clicks....
Hmmmm....
I then plug in an A500 PSU, thinking this might solve the problem. Power up, and.....nothing...

How do I know if the HD is 'ked or not? It came all nicely boxed in an antistatic bag with a load of Amiga gear I picked up. Or is there something I have overlooked?
Any suggestions greatly appreciated