ASRock Z270M-ITX/ac User Manual - Page 30
Platform Module TPM system, ATX 12V Power
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Z270M-ITX/ac CPU Fan Connector (4-pin CPU_FAN1) (see p.7, No. 3) This motherboard pro- FAN_VOLTAGE CPU_FAN_SPEED vides a 4-Pin CPU fan GND FAN_SPEED_CONTROL (Quiet Fan) connector. 1 2 34 If you plan to connect a 3-Pin CPU fan, please connect it to Pin 1-3. ATX Power Connector (24-pin ATXPWR1) (see p.7, No. 5) 1 13 This motherboard provides a 24-pin ATX power connector. ATX 12V Power Connector (4-pin ATX12V1) (see p.7, No. 1) 12 24 8 5 4 1 Please connect an ATX 12V power supply to this connector. Chassis Intrusion Header (2-pin CI1) (see p.7, No. 14) 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. TPM Header (17-pin TPMS1) (see p.7, No. 18) GND SERIRQ# S_PWRDWN# GND LAD1 LAD2 SMB_DATA_MAIN SMB_CLK_MAIN GND This connector supports Trusted GND +3VSB Platform Module (TPM) system, LAD0 which can securely store keys, +3V digital certificates, passwords, LAD3 PCIRST# and data. A TPM system also FRAME helps enhance network security, PCICLK 1 protects digital identities, and ensures platform integrity. 25 English