My 745 is having fan failure, tested two fans, both work, have the amber light of death on the MOB, i've
disconnected everything & still have the light. System works but crashes playing video or under a load. I've
felt the Motherboard has been a problem for a while because of USB problems, want to get another MOB
but wondered if I could creep up a grade with a 755 Motherboard, to get the quad & 8 Gig upgrade. Any
suggestions, tips or advice? Thanks