Re: G4 (quicksilver?) PSU dying

[Michael <macallan%netbsd.org@localhost>]

Hello,

On Fri, 11 Dec 2020 16:27:00 +0100
Martin Husemann <martin%duskware.de@localhost> wrote:

> it seems the power supply in my dual G4 mac is dying (OF calls it
> Apple PowerMac3,5 - I think it is a quicksilver, 2x 800 MHz G4 cpu,
> dmesg at https://NetBSD.org/~martin/macppc-atf/dmesg.txt).

Sure sounds like a Quicksilver.

> Replacement PSUs seem to be unavailable, but several pages I found claim
> that I should be able to connect a standard ATX PSU with small modifications.
> 
> One minor thing is unclear though: it seems the quicksilver has a +28V supply
> (something about ADC graphics or displays) - and I am not sure the machine
> would work without that (and no chance to get that from a stock ATX PSU).

IIRC that's for the extra connector in front of the AGP slot, for
monitor power via ADC. I doubt it's being used for anything else.

have fun
Michael