ASRock B85M-HDS Quick Installation Guide - Page 18

ATX 12V Power Connector (4-pin ATX12V1) (see p.1, No. 1) Infrared Module Header (5-pin IR1) (see p.1, No. 20) Serial Port Header (9-pin COM1) (see p.1, No. 18) 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 an 8-pin ATX 12V power connector. To use a 4-pin ATX power supply, please plug it along Pin 1 and Pin 5. This header supports an optional wireless transmitting and receiving infrared module. This COM1 header supports a serial port module. Chassis Intrusion Header (2-pin CI1) (see p.1, No. 13) TPM Header (17-pin TPMS1) (see p.1, No. 19) 16 1 GND Signal This motherboard supports CASE OPEN detection feature that detects if the chassis cove has been removed. This feature requires a chassis with chassis intrusion detection design. This connector supports Trusted Platform Module 1 (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