ASRock A520M/ac Quick Installation Guide - Page 33
pin SPI_TPM_J1
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ATX 12V Power Connector (4-pin ATX12V1) (see p.1, No. 1) Serial Port Header (9-pin COM1) (see p.1, No. 13) SPI TPM Header (13-pin SPI_TPM_J1) (see p.1, No. 16) Please connect an ATX 12V power supply to this connector. *The power supply plug fits into this connector in only one orientation. RRXD1 DDTR#1 DDSR#1 CCTS#1 1 RRI#1 RRTS#1 GND TTXD1 DDCD#1 This COM1 header supports a serial port module. SPI_DQ3 +3.3V Dummy CLK SPI_MOSI RST# TPM_PIRQ 1 SPI_TPM_CS# GND RSMRST# SPI_MISO SPI_CS0 SPI_DQ2 This connector supports SPI Trusted Platform Module (TPM) system, which can securely store keys, digital certificates, passwords, and data. A TPM system also helps enhance network security, protects digital identities, and ensures platform integrity. English 30