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Using a combination of more detailed photos and some excellent schematics of an OPTi 82C495XLC implementation, I believe that I was able to reverse engineer all of the optional components on 2xx series OrangePC cards. This effort should allow for upgrading any lower tier 2xx series card into the...

@jeremywork , these photos have been a great help, but I still can't read some of the chip labels and resistor values. I'm trying to see if I can populate the missing components on a lower tier 200 series card (210 in my case) and turn it into a full blown 290 model. My card is missing both the...

I recently bought a Quadra 650 that was sold "as-is, no power". The machine appeared to be in great condition, but upon taking the ASTEC AA15830 installed in it apart, I saw that most of the film caps were cracked and/or crumbling and one of them looked burnt. I decided to take a stab at...

In general, yes, I do believe that 24v should work just fine. It will allow the VRM to run cooler in most circumstances. There are two downsides though: The wattage consumed by things running on the higher voltage will not change. This will result in a larger amount of current flowing through...

I think it would also be cool to take something like this chassis mount PSU and make a 3D printed case for it for more of a stock look. That would be a lot more work, more expensive, and require mucking around with mains voltage... But it would be sexier than a plain black box.

I just found this PSU on DigiKey that should work great on a cube if you can make a cable (or are willing to harvest it from a stock PSU). It is rated for 240W and has enough connections to make hooking up the 4 wires easy. The voltage is slightly lower than stock at 27.6v, but I don't...