ASRock B250M Pro4 Quick Installation Guide - Page 24

Print Port Header

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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. 23) 12 24 1 13 8 5 4 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 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 COM1 header supports a serial port module. GN D English TPM Header (17-pin TPMS1) (see p.1, No. 21) GND SERIRQ # S_PWRDWN # GN D LAD1 LAD2 SMB_DATA_MAIN SMB_CLK_MAIN GN D +3VS B LAD0 +3V LAD3 PCIRST # FRAM E PCICLK This connector supports Trusted Platform Module (TPM) system, 1 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. Print Port Header (25-pin LPT1) (see p.1, No. 22) AFD# ERROR# PINIT# SLIN# GND 1 SPD7 SPD6 ACK# SPD5 BUSY SPD4 PE SPD3 SLCT SPD2 SPD1 SPD0 STB# This is an interface for print port cable that allows convenient connection of printer devices. 22

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22
English
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 pro-
vides an 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. 23)
Tis COM1 header
supports a serial port
module.
³PM Header
(17-pin ³PMS1)
(see p.1,
No. 21)
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.
Print Port Header
(25-pin LP³1)
(see p.1, No. 22)
Tis is an interface
for print port cable
that allows convenient
connection of printer
devices.
1
GND
SMB_DATA_MAIN
LAD2
LAD1
GND
S_PWRDWN
#
SERIRQ
#
GN
D
PCICLK
PCIRST
#
LAD3
+3V
LAD0
+3VSB
GND
FRAME
SMB_CLK_MAIN
12
1
24
13
5
1
8
4
1
AFD#
ERROR#
PINIT#
GND
SLIN#
STB#
SPD0
SPD1
SPD2
SPD3
SPD4
SPD5
SPD6
SPD7
ACK#
BUSY
PE
SLCT