ASRock Z270 Pro4 User Manual - Page 30
Platform Module TPM system, Chassis Intrusion Header
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Chassis Intrusion Header (2-pin CI1) (see p.7, No. 22) 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. GND SMB_CLK_MAIN SMB_DATA_MAIN LAD2 LAD1 GND S_PWRDWN# SERIRQ# GND TPM Header (17-pin TPMS1) (see p.7, No. 23) 1 PCICLK FRAME PCIRST# LAD3 +3V LAD0 +3VSB GND 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. Thunderbolt AIC 1 Connector (5-pin TB2) (see p.7, No. 26) Please connect a Thunderbolt™ add-in card (AIC) to this connector via the GPIO cable. Thunderbolt AIC Header (10-pin TB1) (see p.7, No. 27) PA_DPSRC_HPD I2C_MASTER_DATA I2C_MASTER_CLK PA_PPS_INT# GND Please connect a Thunderbolt™ add-in card (AIC) to this connector via the GPIO cable. 1 GND SLP_S5# SLP_S3# CIO Plug Event Force Power English 24