Try this: main power switch always ON. Use PSU ON/OFF switches for turning the individual systems on 😁

That would not work
There are two modules but only one backplane where all the cables are attached.
So if you turn one module on, both (or all three) systems will be powerd on.

The PSU is designed for beeing able to handle one module failing without anything happening at all.

This case used to hold a critical server at a large company from ~1996 to ~2001 when it was replaced and thrown in a dumpster.
(I worked on that company and saved it from the dumpster)

Anxious to hear the news on this project 😉

Im still waiting for a new CPU for the PC-Chips Socket-7 board.
Its alive and kicking though just not in one piece. The motherboard "cages" are used as separate computers until all parts have arrived.
I guess I could mount the slow system part of the build in the case while I wait but the systems hdd is used for testing other boards at the moment.
Im just to lazy to install and configure dos 6.22 on another hardrive 😉

Instead I will start a new thread showing off some of my DX9 video cards and posting some benchmarks while I wait 😜
I just put together a nice test bench with an Asus 845pe motherboard and an P4 3066 from 2002.
It will be intresting to see just how new video cards that make sense for an 2002 Intel box running XP.

When Im done I plan to repeat the process with an Athlon-XP setup.

A few days ago I put together this combo for a friend:
ASUS A8NE-FM/S
Athlon 64 3200+
2GB DDR1 RAM
80GB SATA hard drive

Installed Windwos 7 Home Premium and was REALLY surprised at how fast it was! It just blew me away 😁

Sometimes you get surprised 😀
The P4 3.06@3450 plays Youtube 720p flawlessly. In fact better than many systems from 2004 -2007.
I have no idea why it handles Youtube so well.

Half-Saint wrote:

A few days ago I put together this combo for a friend: ASUS A8NE-FM/S Athlon 64 3200+ 2GB DDR1 RAM 80GB SATA hard drive […]
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A few days ago I put together this combo for a friend:
ASUS A8NE-FM/S
Athlon 64 3200+
2GB DDR1 RAM
80GB SATA hard drive

Installed Windwos 7 Home Premium and was REALLY surprised at how fast it was! It just blew me away :D

lol, this is pretty much the computer I was using for straight 5 years... mine had a 3700+ San Diego and a regular A8NE-FM (OEM version), and a 250 GB Seagate Barracuda (later upgraded to 1 TB Samsung Spinpoint). A rock solid PC for 2006 standards... not sure how you run 7 on there though, I only did XP and in the end this machine really annoyed me with 100% CPU spikes on youtube, HD was pretty much unwatchable if I remember correctly. Running any single core in 2011 was pretty ludicrous I think, nowadays the web is even more bloated.