I have used a Acer Aspire AMD motherboard with 1gig RAM.
How to install Openelec with windows.
Note: Openelec and XBMC are Open Source programs. Credit goes to the developers for a awesome program.
Step 1: Requirements
2x Flash Drives, 512mb min. (Both drives will need to be formatted, so back them up first)
IR remote control (optional).
USB Hub (optional)
2x 500mm x 75mm perspex or acrylic
Pack of 60mm x 3mm bolts with nuts
5mm nylon tube
Step 2: Strip the Motherboard
Remove all cables and connectors. Be sure to leave the heat sink attached ; )
Step 3: Measure Up and Cut
Vary the size and shape of the perspex to suit you liking. I cut this down right up to the HDD bay for a snug fit.
I used a 54mm holesaw to cut out the cpu fan and 10mm for the bottom intack.
Step 4: Assembly
Cut the nylon tubing to act as a spacer between the MB and the perspex. Cut the same size for the top half.
Place the motherboard between the spaces and screw on the top half.
Cut down any extra thread with the Dremel.
Screw it all together and connect up the power, Video and audio cable.
I extended the power on button to a switch on the back. Bit trickey to do the soldering but works great.
Note: Use a multimeter to test continuity on the power switch to see which pins to extend. Solder carefully.
Step 5: Install Openelec
We are going to use one drive to boot from and the other for the OS to be installed onto.
Change the BIOS settings to boot from USB media first. then boot from the drive created with the windows installer.
Get the software here:
Follow the install instructions:
If you are not sure which version do download use the Generic OSS Build. It has the most generic drivers.
Remember. the drives will be formatted, so make a back up.
Step 6: Boot Up
Happy Hacking :)