1-6
Chapter 1: Product Introduction
Serial port connector (10-1 pin COM)
This connector is for a serial (COM) port. Connect the
serial port module cable to this connector, then install
the module to a slot opening at the back of the system
chassis.
PIN 1
COM
DCD TXD GND RTS
RI
RXD DTR DSR CTS
Front panel audio connector (10-1 pin AAFP)
This connector is for a chassis-mounted front panel
audio I/O module that supports HD Audio standard.
Connect one end of the front panel audio I/O module
cable to this connector.
AAFP
AGND NC SENSE1_RETUR
SENSE2_RETUR
PORT1 L PORT1 R PORT2 R
SENSE_SEND
PORT2 L
HD-audio-compliant
pin definition
PCI Express 3.0/2.0 x16 slots
This motherboard supports three PCI Express 3.0/2.0 x16 graphic cards that
comply with the PCI Express specifications. Actual PCI Express speeds varies per
BIOS settings.
PCI Express 3.0/2.0 x1 slots
This motherboard has two PCI Express 3.0/2.0 x1 slots that support PCI Express
x1 network cards, SCSI cards, and other cards that comply with the PCI Express
specifications.
PCIe operating mode
3
rd
Gen AMD Ryzen™ Processors
Slot Description
PCIe operating mode
Single VGA /
PCIe card
Dual VGA /
PCIe card
Triple VGA /
PCIe card
PCIe x16_1
x16 (PCIe 4.0)
x8 (PCIe 4.0)
x8 (PCIe 4.0)
PCIe x16_2
N/A
x8 (PCIe 4.0)
x8 (PCIe 4.0)
PCIe x16_3
N/A
N/A
x8 (PCIe 4.0)
M.2_1 (PCIe Mode)
x4 (PCIe 4.0)
x4 (PCIe 4.0)
x4 (PCIe 4.0)
M.2_1 (SATA Mode)
Support
Support
Support
M.2_2 (PCIe Mode)
x2 (PCIe 4.0)
x2 (PCIe 4.0)
x2 (PCIe 4.0)
M.2_2 (SATA Mode)
N/A
N/A
N/A
(continued on the next page)
