ASRock A780GXE/128M Quick Installation Guide - Page 30
Please connect an ATX 12V
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Though this motherboard provides 24-pin ATX power connector, 12 24 it can still work if you adopt a traditional 20-pin ATX power supply. To use the 20-pin ATX power supply, please plug your power supply along with Pin 1 and Pin 13. 20-Pin ATX Power Supply Installation 1 13 ATX 12V Power Connector (8-pin ATX12V1) (see p.2 No. 3) 4 8 1 6 Please connect an ATX 12V power supply to this connector. Though this motherboard provides 8-pin ATX 12V power 4 8 connector, it can still work if you adopt a traditional 4-pin ATX 12V power supply. To use the 4-pin ATX power supply, please plug your power supply along with Pin 1 and Pin 5. 1 6 4-Pin ATX 12V Power Supply Installation SLI/XFIRE Power Connector (4-pin SLI/XFIRE_PWR1) (see p.2 No. 39) SLI/XFIRE_POWER1 IEEE 1394 Header (9-pin FRONT_1394) (see p.2 No. 26) It is not necessary to use this connector, but please connect it with a hard disk power connecor when two graphics cards are plugged to this motherboard at the same time. Besides one default IEEE 1394 port on the I/O panel, there is one IEEE 1394 header (FRONT_1394) on this motherboard. This IEEE 1394 header can support one IEEE 1394 port. Serial port Header (9-pin COM1) (see p.2 No.28) This COM1 header supports a serial port module. English 30 ASRock A780GXE/128M Motherboard