hi guys, can anybody help, i have just bought and installed a ocz 600w mod extreme pro, the problem is that when i switch off the computer it shuts down as it normally does but the fans keep on going and not switching off, also i still have power lights on on the motherboard.i thought it might just power off after a short while, but it will keep on for hours until i switch it off at the plug. all i have done is replace the power suply nothing else. it seems that power is constantly running through the motherboard even when powered down, do you think there is a problem with the power suply?the old power suply just shut everything down and there was no power to the motherboard, seems strange. any help would be realy appreciated as if problem power suply i can get it replaced as it is only 4 days old