Converted an old laptop to a server running Proxmox!
Unfortunately, the laptop wasn't compatible with a CPU upgrade, and it didn't support reboot after power loss, so the server is limited to only running Octoprint for my ender 3.
Also, I can't enter bios laptop without using the internal screen (no bios screen on external video output) so I need to open the case and attach it to change bios setting, it's a bit inconvenient.
The case is thin and with some custom 3d printed feet for the ender 3 it fit under the printer.
There is power led, hhd activity led and the power button
air is taken from backside, and it's ejected on front side providing cooling also to the board, original fan and heat sink are used
2,5 inch hhd or ssd is attached with 2 screw to the plastic case, but it's partially outside the case. You can probably use an adapter and fit it inside with a thin enough disk
I used some m2 (3mm hole) brass insert for the screws
The author marked this model as their own original creation.