5160 PSU and first power

What I tried

Opened the 5160’s IBM 130 W supply. The RIFA cap had cracks in it, so I replaced it and the large ceramic next to it before applying power. Inspected every tantalum on the motherboard and the cards. Then the listen test with no video card, then a video card and the 5153.

What I measured

One long and one short beep with no video, which is the board complaining correctly. With video, a memory count and a picture.

What broke or surprised me

A lot of dust. It took some shaking off, and I needed the floppy and a keyboard working before it went anywhere useful. Both of those got their own sessions.

Next

Keyboards.