That sucks
I read through the newegg reviews for your powersupply in case there were any hints of what was wrong and the only negative comment was
"this ps did not like my IC7-G. i build a new gaming rig from scratch, only carrying over the monitor and Visiontek x800 pro. everything clicked until i booted up for the first time... there was power to the mobo and the case fans were spinning like crazy, but no cmos for me
i breadbox'd the machine and started all over. no dice. i switched out the CPU, VGA, memory, cleared the CMOS many times, pulled the mobo out of the case to make sure it wasn't shorting out, and even exchanged the mobo. i hit up the ABIT boards and no one could offer any other explanations.
the "neopower" was last man standing. i pulled the ps from another machine and sure enough, i was finally looking at the ABIT cmos setup menu. d'oh.
i liked this ps otherwise, it looks slick and makes NO noise, but it needs a voltage switch. the "universal input" did not work for my set up. i don't care what Antec says, it needs a switch. (besides, if you have multiple hd drives, optical drives, floppy, VGA, other cards, etc. you'll be using all of the cables and don't need to spend the extra $$$ for this ps. i went with the Antec 550 watt truepower and love it.)"
they didn't really have a solution for this
I've never used a powersupply with removable cabling. Did you read all the directions and warnings for it etc.? (I'm not trying to say you're doing something wrong, just that it's really annoying to have to RMA something and if it's something you have to do to the powersupply that nobody would think of unless they read it, it's worth a look)