ASRock B450M Steel Legend User Manual - Page 37

pin ATX12V1, Trusted Platform Module

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B450M Steel Legend ATX Power Connector (24-pin ATXPWR1) (see p.7, No. 7) 12 24 1 13 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. ATX 12V Power Connector (8-pin ATX12V1) (see p.7, No. 1) 8 5 This motherboard provides a 8-pin ATX 12V power connector. To use a 4 1 4-pin ATX power supply, please plug it along Pin 1 and Pin 5. Serial Port Header (9-pin COM1) (see p.7, No. 21) Chassis Intrusion Header (2-pin CI1) (see p.7, No. 15) RRXD1 DDTR#1 DDSR#1 CCTS#1 1 RRI#1 RRTS#1 GND TTXD1 DDCD#1 1 GND Signal This COM1 header supports a serial port module. 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. 22) 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 GN D 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. 31 English

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B450M Steel Legend
31
English
ATX Power Connector
(24-pin ATXPWR1)
(see p.7, No. 7)
°is motherboard pro-
vides a 24-pin ATX power
connector. To use a 20-pin
ATX power supply, please
plug it along Pin 1 and Pin
13.
ATX 12V Power
Connector
(8-pin ATX12V1)
(see p.7, No. 1)
°is 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.
Serial Port Header
(9-pin COM1)
(see p.7, No. 21)
°is COM1 header
supports a serial port
module.
Chassis Intrusion Header
(2-pin CI1)
(see p.7, No. 15)
°is motherboard
supports CASE OPEN
detection feature that
detects if the chassis cove
has been removed. °is
feature requires a chassis
with chassis intrusion
detection design.
TPM Header
(17-pin TPMS1)
(see p.7, No. 22)
°is 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.
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
L
AD2
LAD1
GND
S_PWRDWN
#
SERIRQ #
GN
D
PCIC
LK
PCIRST
#
LAD3
+3
V
LAD0
+3VS B
GND
FRAM
E
SMB_CLK_MAIN
1
Signal
GND