Can I install a 2nd independent ATX power supply in ET7890A/ET7896A computer case?
Yes, but you need to buy an optional 2nd power supply mounting kit. The part number is PSKIT78. Two independent ATX power supplies in the same computer case are different from Redundant power supply. The redundant power supply is for mission critical applications. One power supply goes down, the other power supply will take over automatically and the system can keep running without interrupt. Normally, two independent ATX power supplies system is for non-mission critical application. You use the first power supply as normal (You choose a better quality power supply among the two for this). It will directly connect to your motherboard, primary hard disks (may be more than one), and some other important devices. The 2nd power supply would connect to cooling devices, floppy drives, CD-ROMs (not used often ones), etc. Since ATX power supply ON/OFF is controlled by pin 14 of the 20-pin connector from motherboard. For the second power supply, you have to put a wire in pin 14 and pin 16 (Grou
