Asus PRIME X370-A Manual page 12

6. DDR4 DIMM slots
Install 2 GB, 4 GB, 8 GB, and 16 GB unbuffered ECC and non-ECC DDR4 DIMMs into
these DIMM sockets.
For more details, refer to System memory.
7. AMD X370 SATA 6.0Gb/s ports (7-pin SATA6G_1~6)
These ports connect to SATA 6.0 Gb/s hard disk drives via SATA
6.0 Gb/s signal cables.
8. System panel connector (20-5 pin PANEL)
This connector supports several chassis-mounted functions.
• System power LED (4-pin PWR_LED)
This 4-pin connector is for the system power LED. Connect
the chassis power LED cable to this connector. The system
power LED lights up when you turn on the system power,
and blinks when the system is in sleep mode.
• Hard disk drive activity LED (2-pin HDD_LED)
This 2-pin connector is for the HDD Activity LED. Connect
the HDD Activity LED cable to this connector. The HDD LED
lights up or flashes when data is read from or written to the
HDD.
• System warning speaker (4-pin SPEAKER)
This 4-pin connector is for the chassis-mounted system warning speaker. The speaker
allows you to hear system beeps and warnings.
• ATX power button / soft-off button (2-pin PWR_SW)
This connector is for the system power button.
• R eset button (2-pin RESET)
This 2-pin connector is for the chassis-mounted reset button for system reboot without
turning off the system power.
9. USB 3.1 Gen 1 connector (20-1 pin USB3_12)
This connector allows you to connect a USB 3.1 Gen 1
module for additional USB 3.1 Gen 1 front or rear panel
ports. With an installed USB 3.1 Gen 1 module, you can
enjoy all the benefits of USB 3.1 Gen 1 including faster
data transfer speeds of up to 5Gbps, faster charging time
for USB-chargeable devices, optimized power efficiency
and backward compatibility with USB 2.0.
1-4
RSATA_TXP
RSATA_TXN
RSATA_RXN
RSATA_RXP
PANEL
+PWR_LED- PWR_SW
PIN 1
+HDD_LED- RESET
* Requires an ATX power supply
USB3_12
PIN 1
Chapter 1: Product introduction
SATA6G
GND
GND
GND
SPEAKER
+PWR_LED-