Well I'm not a Pro but IMO this seems like overkill:"Iwill ZPC-GX Barebone: Acrylic case, Supports Socket 478 P-4 and DIMM, 400MHz, Up to 2.53GHz, 120W" No need for all that. (IMO)Originally Posted by Fraychild
The Opus 150W is a DC to DC (volts) converter, it takes the cars 9-16 volt system and regulates it to a steady or "clean" 12 volts. (which is what the computer needs)
Yes, they're kind of high dollar, but it's the best and easiest way to power your system. Inverters work and are cheaper but are much less efficient.
Your 150W inverter will most likely not power a system and this P-4,2.53Ghz would be alot for the Opus to handle too (if at all), but I'll let the experts answer that...
Do yourself a favor and reduce the "size" of that MB, and use an Opus PSU.