"The unit, LP-6100E, is compliant with ATX 2.03 so it supports P4 motherboards. It comes with a nice aluminium finishing. The
PSU has two fans, one at the back of the unit and one in front. This is to increase the airflow in the case as the fans are
actively "pulling" hot air out of the case. Both of the fans are ball bearing construction to ensure long lasting operation"
FULL STORY @ OVERCLOCKERS (http://www.overclockers.co.nz/ocnz/misc/leadman500wpsu/f1.shtml)