ASRock Z87 Extreme11/ac User Manual - Page 41
pin SLI/XFIRE, Infrared Module Header
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Z87 Extreme11/ac ATX 12V Power Connector (8-pin ATX12V1) (see p.11, No. 2) (8-pin ATX12V2) (see p.11, No. 3) SLI/XFIRE Power Connector (4-pin SLI/XFIRE_ PWR1) (see p.11, No. 38) (4-pin SLI/XFIRE_ PWR2) (see p.11, No. 37) Infrared Module Header (5-pin IR1) (see p.11, No. 40) Serial Port Header (9-pin COM1) (see p.11, No. 39) 8 5 4 1 IRTX +5VSB DUMMY 1 GND IRRX RRXD1 DDTR#1 DDSR#1 CCTS#1 1 RRI#1 RRTS#1 GND TTXD1 DDCD#1 This motherboard provides two 8-pin ATX 12V power connectors. To use a 4-pin ATX power supply, please plug it along Pin 1 and Pin 5. Please connect this connector with a hard disk power connector when two graphics cards are installed on this motherboard. This header supports an optional wireless transmitting and receiving infrared module. This COM1 header supports a serial port module. English 35