I have a Commodore PC-1 with a busted power supply. I have no desire to fix it as
- I don't have the know-how
- it is already 30 years old
- It is difficult to debug / find replacement components
So I would rather opt for a new power supply
So I stumbled upon this Mean Well RPT-60B 60W PSU.
Now the original PSU was rated at 100W and according to the original PSU schema :
I see the following current ratings
- 5V : 3,5A
- 12V : 2,2A
- -12V : 0,2A
The new Mean Well PSU although only rated at 60W has
- 5V : 5A
- 12V : 2A
- -12V : 0.5A
Would this PSU be a good replacement for the original Commodore PC-1 PSU ?
Also, I currently hacked together "an ATX -> PC-1 adapter" for hooking up an ATX PSU.
I did some power measurements (putting my multimeter in-circuit to measure the current on the 5V and 12V rails, and I noticed that I'm only getting 7mA on the 5V rail and 220mA on the 12V rail. This seems very low (especially on the 5V rail). Any idea what might be causing this ?
The computer is running fine, and even during benchmarks / gaming the current measurement hardly changes. Any ideas ?