Beige G3 RAM and PSU questions:

[Trash80toHP_Mini]

The pinout is compatible with 20 pin ATX. The tower PSU is basically an ATX PSU. The desktop one has the soft power the Mac way instead of the ATX way, so if you want to use a board out of a desktop with ATX you have to swap Jumper J28 over to the other position (it's in the corner near the back of the end PCI slot.

Nice, thanks much for that info. The little 1U compatible 300w PSU arrives today from Amazon. The 500w PSU arrived from eBay and it's a 9" deep freakin' beast of a thing! Wouldn't even fit nicely in the 4U PEx project.

It's only got ten SATA power connectors aside from Molex aarray.

 

[croissantking]

Sounds like a fun little project

Only one way to find out…

 

[croissantking]

Has anyone ever tried to get a PC floppy drive to work with a retail board?

So I have now, and it doesn't work. No sign of life.

Of course I made sure the floppy cable was the right way round and that the drive was plugged into power. I also swapped in a Rev. A ROM and booted Mac OS 8.0 just in case the newer ROM/OS had dropped support for it.

Interestingly theres a short mini-molex cable that hangs off the Beige G3DT PSU that isn't used for anything, but it's the perfect length to reach a PC floppy drive when it's fitted in the floppy bay. I expect it was there just for that.