Specifications

1
Introducing the Motherboard
Chapter 1
Introducing the Motherboard
Introduction
Thank you for choosing the A890GXM-A motherboard. This motherboard is a high
performance, enhanced function motherboard that supports socket for AMD
Phenom
TM
II/Athlon
TM
II/Sempron
TM
processors (socket AM3) for high-end business
or personal desktop markets.
There is an advanced full set of I/O ports in the rear panel, including one VGA port,
one DVI port, one ESATA port, one HDMI port, one Display port, six USB ports, two
LAN ports, one optical SPDIFO port and audio jacks for microphone, line-in and 8-
ch line-out.
The motherboard incorporates the AMD 890GX Northbridge (NB) and SB850
Southbridge (SB) chipsets. The Northbridge supports the HyperTransport
TM
3.0 in-
terface. The memory controller supports DDR3 memory DIMM frequencies of 1600
(OC)/1333/1066/800*
1
. It supports four DDR3 slots with maximum memory size of
32 GB*
2
. Two PCI Express x16 slot, intended for Graphics Interface, are fully com-
pliant to the PCI Express Gen2 (version 2.0). In addition, two PCI Express x1 slots
are supported and one PCI Express x4 slot which is PCI v2.0 compliant is supported.
*2. Due to the DRAM maximum size (2 GB per dimm) at present, the
memory maximum size we have tested is 8 GB per dimm.
*1. Due to the limitation of AMD CPU spec, please refer to Memory QVL
for more information.
The SB850 Southbridge supports one PCI slot which is PCI v2.3 compliant. It
integrates USB 2.0 interface, supporting up to fourteen functional ports (six USB
ports and four USB 2.0 headers support additional eight USB ports). The Southbridge
integrates a Serial ATA host controller, supporting five SATA ports with maximum
transfer rate up to 6 Gb/s each.