ASRock Z390 Extreme4 User Manual - Page 31
Platform Module TPM system, Serial Port Header
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Z390 Extreme4 ATX 12V Power Connector (8-pin ATX12V1) (see p.8, No. 1) ATX 12V Power Connector (4-pin ATX12V2) (see p.8, No. 2) Thunderbolt AIC Connectors (5-pin TB1) (see p.8, No. 24) Serial Port Header (9-pin COM1) (see p.8, No. 21) TPM Header (17-pin TPMS1) (see p.8, No. 22) GND SERIRQ # S_PWRDWN # GN D LAD1 LAD2 SMB_DATA_MAIN SMB_CLK_MAIN GN D +3VS B LAD0 +3V LAD3 PCIRST # FRAM E PCICLK 8 5 4 1 This 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 an ATX 12V power supply to this connector. *The power supply plug fits into this connector in only one orientation. 1 RRXD1 DDTR#1 DDSR#1 CCTS#1 1 RRI#1 RRTS#1 GND TTXD1 DDCD#1 Please connect a Thunderbolt™ add-in card (AIC) to the Thunderbolt AIC connector via the GPIO cable. *Please install the Thunderbolt™ AIC card to PCIE6 (default slot). This COM1 header supports a serial port module. This connector supports Trusted Platform Module (TPM) system, which can securely store keys, 1 digital certificates, passwords, and data. A TPM system also helps enhance network security, protects digital identities, and ensures platform integrity. GN D English 25