Asus Xeon 5U Rackmount Server AP1720-E1 - Manual (Page 76)

Chapter 3: Installation options A-2
A.1 General description
The server comes with an SSI-type 450W ATX power supply with universal
AC input that includes PFC and ATX-compliant output cables and
connectors. The power supply has nine plugs labeled P1 to P10 (no P3).
Take note of the devices to which you should connect the plugs.
P1 Motherboard 24-pin ATX power connector
P2 Motherboard 8-pin +12V AUX power connector
P4 Floppy disk drive
P5 Peripheral device (second backplane, if present)
P6 Peripheral device (available)
P7 Peripheral device (second backplane, if present)
P8 Peripheral device (first backplane, if present)
P9 Peripheral device (first backplane, if present)
P10 Peripheral device (optical drive)
P10 P2 P4 P5 P6 P7 P8 P9 P1