PSU Connector wires are extremely loose.

  My 680W Echo Star PSU's connector wires (except the mobo power cables) are all loose so loose i cant connect it properly to a HD. It looks like they havent been Crimped properly and I cant return it cuz its been awhile sence i looked at it. So is there any way I can fix this?

Most of the time it's not the wiring itself but the molex connectors. The holes in the molex connectors where the pins go though are too big. The easiest way to fix it is buy new connectors.

http://www.xoxide.com/posumo.html