Finally, after over a year of work, procrastination, 3 GPUs and a lot of money, I completed this machine.

It is based on an old LCD-386 Protable Computer, which I found on a ebay kleinanzeigen and just had to have. Removed all the old hardware, cleaned over 20 years worth of dust and debris and got to work.

Now it is home to a pretty capabale Gaming machine.

Watercooling was mandatory in this case, because there wouldn't be any room for a decent sized air cooled gpu + plus I didn't want plaster everything with vents for fans.
For the GPU I had to go with a Founders Edition design, because of the limited depth. I tried fitting two different cards, but they were too tall. So, ports needed to be on the back.

The original display was removed and replaced with a 1440p portable monitor. The power is wired to a molex connector.
Unfortunately it doesn't quite fit the original bezel, so I have to run at 2304×1440 pixels, with small black bars, but they are just barely noticeable.

I wanted to keep the original keyboard, but had problems using all kinds of different 5 pin DIN adapters, even with a second board I bought. Instead I replaced the whole thing with a Coolermaster Quickfire TK and coiled the cable around some bamboo stick we had lying around.

If you have any questions I am happy to answer them.