They do make computdr power testers...amazon or newegg. If you cant tell on xbox by trying the above suggestions..try to sell it as a "parts" unit on ebay and say no power where someone cant come back on you.
Failing all that...the xbox has a great motherboard and hard drive...so tear into it. Make sure you have the right star tools though...they are built like a friggin tank and are a pita to get open otherwise....I have had to do both ways.
Bookmarks