ASRock H81 Pro-G User Manual - Page 25
PCIe Power Connectors, pin SLI/XFIRE
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H81 Pro-G ATX 12V Power Connector (8-pin ATX12V1) (see p.6, No. 4) 8 5 4 1 PCIe Power Connectors (4-pin SLI/XFIRE_ PWR1) (see p.6, No. 25) (4-pin SLI/XFIRE_ PWR2) (see p.6, No. 24) Infrared Module Header (5-pin IR1) (see p.6, No. 21) Serial Port Header (9-pin COM2) (see p.6, No. 20) IRTX +5VSB DUMMY 1 GND IRRX RRXD1 DDTR#1 DDSR#1 CCTS#1 1 RRI#1 RRTS#1 GND TTXD1 DDCD#1 TPM Header (17-pin TPMS1) (see p.6, No. 6) his motherboard provides an 8-pin ATX 12V power connector. To use a 4-pin ATX power supply, please plug it along Pin 1 and Pin 5. Please connect a 4 pin molex power cable to this connector when more than three PCIe cards are installed. his header supports an optional wireless transmitting and receiving infrared module. his COM2 header supports a serial port module. his connector supports Trusted Platform Module (TPM) system, which can securely store keys, digital certiicates, passwords, and data. A TPM system also helps enhance network security, protects digital identities, and ensures platform integrity. 21 1 English