MSI MPG X570-A PRO User Manual

33
Overview of Components
Switching fan mode and adjusting fan speed
You can switch between PWM mode and DC mode and adjust fan speed in BIOS >
HARDWARE MONITOR.
Select PWM mode or DC mode
Important
Make sure fans are working properly after switching the PWM/ DC mode.
There are gradient points of the fan speed that allow you to adjust
fan speed in relation to CPU temperature.
PWM Mode pin definition
1 Ground 2 +12V
3 Sense 4 Speed Control Signal
DC Mode pin definition
1 Ground 2 Voltage Control
3 Sense 4 NC
Pin definition of fan connectors
CPU_FAN1, PUMP_FAN1, SYS_FAN1~4: Fan Connectors
Fan connectors can be classified as PWM (Pulse Width Modulation) Mode or DC Mode.
PWM Mode fan connectors provide constant 12V output and adjust fan speed with
speed control signal. DC Mode fan connectors control fan speed by changing voltage.
You can follow the instruction below to adjust the fan connector to PWM or DC Mode.
CPU_FAN1 is the auto-detection mode fan connector, the system will auto detect the
fan mode.
1
PUMP_FAN1
(Default PWM mode)
1
SYS_FAN1~4
(Default DC mode)
1
CPU_FAN1
(Auto-detection Mode)

MSI MPG X570-A PRO Specifications

General

Chipset	AMD X570
CPU Socket	AM4
Form Factor	ATX
Memory Slots	4
Max Memory	128 GB
SATA Ports	6
LAN	Realtek RTL8111H Gigabit LAN
RAID Support	RAID 0, 1, 10
Multi-GPU Support	AMD CrossFire
Memory Speed	DDR4 4400MHz (OC)
M.2 Slots	2 x M.2
Audio	Realtek ALC1220
PCIe Slots	2 x PCIe 4.0 x16, 2 x PCIe 4.0 x1
USB Ports	2 x USB 3.2 Gen 2 (1 Type-A, 1 Type-C), 8 x USB 3.2 Gen 1 (4 on back panel, 4 via internal connectors), 6 x USB 2.0