ASRock AB350 Pro4 Quick Installation Guide - Page 31
pin ATX12V1
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AB350 Pro4 ATX Power Connector (24-pin ATXPWR1) (see p.1, No. 7) ATX 12V Power Connector (8-pin ATX12V1) (see p.1, No. 1) Serial Port Header (9-pin COM1) (see p.1, No. 22) TPM Header (17-pin TPMS1) (see p.1, No. 23) PCICLK FRAME PCIRST# LAD3 +3V LAD0 +3VSB GND GND SMB_CLK_MAIN SMB_DATA_MAIN LAD2 LAD1 GND S_PWRDWN# SERIRQ# GND 12 24 1 13 8 5 4 1 RRXD1 DDTR#1 DDSR#1 CCTS#1 1 RRI#1 RRTS#1 GND TTXD1 DDCD#1 1 This motherboard provides a 24-pin ATX power connector. To use a 20-pin ATX power supply, please plug it along Pin 1 and Pin 13. This motherboard provides a 8-pin ATX 12V power connector. To use a 4-pin ATX power supply, please plug it along Pin 1 and Pin 5. This COM1 header supports a serial port module. This connector supports 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 29