ASROCK B550 PHANTOM GAMING 4 User Manual

English
26
2.6 Onboard Headers and Connectors
System Panel Header
(9-pin PA NEL1)
(see p.7, No. 19)
GND
R ESET#
PWRBTN#
PLED-
PLED+
GND
HDLED-
HDLED+
1
GND
Connect the power
switch, reset switch and
system status indicator on
the chassis to this header
according to the pin
assignments below. Note
the positive and negative
pins before connecting
the cables.
PWRBTN (Power Switch):
Connect to the power switch on the chassis front panel. You may congure the way to
turn o your system using the power switch.
RESET (Reset Switch):
Connect to the reset switch on the chassis front panel. Press the reset switch to restart
the computer if the computer freezes and fails to perform a normal restart.
PLED (System Power LED):
Connect to the power status indicator on the chassis front panel. e LED is on when
the system is operating. e LED keeps blinking when the system is in S3 sleep state.
e LED is o when the system is in S4 sleep state or powered o (S5).
HDLED (Hard Drive Activity LED):
Connect to the hard drive activity LED on the chassis front panel. e LED is on when
the hard drive is reading or writing data.
e front panel design may dier by chassis. A front panel module mainly consists
of power switch, reset switch, power LED, hard drive activity LED, speaker and etc.
When connecting your chassis front panel module to this header, make sure the wire
assignments and the pin assignments are matched correctly.
Onboard headers and connectors are NOT jumpers. Do NOT place jumper caps over
these headers and connectors. Placing jumper caps over the headers and connectors
will cause permanent damage to the motherboard.

ASROCK B550 PHANTOM GAMING 4 Specifications

General

Processor socket	Socket AM4
Processor manufacturer	AMD
Compatible processor series	AMD Ryzen 3 3rd Gen, AMD Ryzen 5 3rd Gen, AMD Ryzen 7 3rd Gen, AMD Ryzen 9 3rd Gen
Maximum number of SMP processors	1
ECC	Yes
Memory channels	Dual-channel
Memory slots type	DIMM
Number of memory slots	4
Supported memory types	DDR4-SDRAM
Maximum internal memory	128 GB
Supported memory clock speeds	2133, 2400, 2667, 2933, 3200, 3466, 3600, 3733, 3800, 3866, 4000, 4133, 4200, 4266, 4333, 4400, 4466, 4533 MHz
RAID levels	0, 1, 10
Supported storage drive interfaces	M.2, SATA III
Parallel processing technology support	-
USB 2.0 connectors	2
USB 3.2 Gen 2 (3.1 Gen 2) connectors	0
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	6
Wi-Fi	No
LAN controller	Realtek RTL8111H
Ethernet interface type	Gigabit Ethernet
Component for	PC
Motherboard chipset	AMD B550
Audio output channels	7.1 channels
Motherboard form factor	ATX
BIOS type	UEFI
Harmonized System (HS) code	84733020
Weight	465 g

Weight and Dimensions

Depth	244 mm
Width	305 mm
Height	70 mm