I have your 742 chassis which is described as suitable for Pentium 4 motherboards, but the ATX power connector is 24 pins and the motherboard requires a 20 pin connector. What is the solution?
The 24 pin ATX connector is a superset and is backward compatible as long as there is room for the extra leads can hang over the motherboard connector. If there is no room and components are in the way then please contact RMA@supermicro.com and order a 20 pin ATX power extension cable.