dalauder
Distinguished
Moira :
Anyone have any better ideas? The DIY kits are too limited in choices and come preassembled and aren't my idea of true DIY.
Your primary challenges are a screen and a battery that can connect to the system and power it for at least 30 minutes unplugged. Everything else can be worked out I think--but is very challenging.
Desktop processors typically are rated for 65W to 125W. Laptop CPUs are 15W to 45W. My wife's i7-2630QM laptop uses 25W idle/web browsing when on battery. Few desktops use under 90W. Mine uses 195W idle (that PhysX card is doin' me in). So power draw is not your friend.
Power draw also relates to heat output. Laptops usually have fans in them, some of the slimmer ones might have passive cooling. If you're using 50W idle instead of 25W with significantly underclocked desktop parts, you'll still have to figure out how to dissipate a lot of heat.
You'll need an SSD as your hard drive because any case made by hand will have too much movement for a mechanical drive to last very long.