Re: My carputer install the PSU for car pc's arent as powerful for most units that are "plug and play" mine is a m2 atx which is the higher power one at 135w. you do get higher ones but they require a regulated 12v supply which your alternator cannot supply. so you need to buy the regulator unit then the power supply.
not really required unless your wanting a gaming PC in the car. remember that 400w PSU you have woud require a inverter to convert it to 240v to convert it back to 12v 5v 3.3v and -12v. i did try demo running this with an inverter and normal PSU in it but it wouldnt power up
mines does the music, movies - can copy and play at the same time - and GPS along with running diagnostics without a problem
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