ASRock X370 Pro4 Quick Installation Guide - Page 31

Serial Port Header

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X370 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

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29
English
X370 Pro4
A³X Power Connector
(24-pin A³XPWR1)
(see p.1, No. 7)
Tis motherboard pro-
vides a 24-pin A³X power
connector. ³o use a 20-pin
A³X power supply, please
plug it along Pin 1 and Pin
13.
A³X 12V Power
Connector
(8-pin A³X12V1)
(see p.1, No. 1)
Tis motherboard
provides a 8-pin A³X 12V
power connector. ³o use a
4-pin A³X power supply,
please plug it along Pin 1
and Pin 5.
Serial Port Header
(9-pin COM1)
(see p.1, No. 22)
Tis COM1 header
supports a serial port
module.
³PM Header
(17-pin ³PMS1)
(see p.1, No. 23)
Tis connector supports
³rusted Platform Module
(³PM) system, which can
securely store keys, digital
certiFcates, passwords,
and data. A ³PM system
also helps enhance
network security, protects
digital identities, and
ensures platform integrity.
12
1
24
13
5
1
8
4
CCTS#1
RRTS#1
DDSR#1
DDTR#1
RRXD1
GND
TTXD1
DDCD#1
1
RRI#1
1
GND
SMB_DATA_MAIN
LAD2
LAD1
GND
S_PWRDWN#
SERIRQ#
GND
PCICLK
PCIRST#
LAD3
+3V
LAD0
+3VSB
GND
FRAME
SMB_CLK_MAIN