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1
Introducing the Motherboard
Chapter 1
Introducing the Motherboard
Introduction
Thank you for choosing the IC890GXM-A motherboard. This motherboard is a high
performance, enhanced function motherboard that supports socket
for AMD
Phenom
TM
II/Athlon
TM
II (socket AM3)/Sempron
TM
processors for high-end business
or personal desktop markets.
There is an advanced full set of I/O ports in the rear panel, including PS/2 mouse and
keyboard connectors, one VGA port, one DVI port, one ESATA port, eight USB
ports, one LAN 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 . One PCI Express x16 slot, intended for Graphics Interface, is fully
compliant to the PCI Express Gen2 (version 1.0). In addition, two PCI Express x1
slots are supported.
*2. Due to the DRAM maximum size (2 GB per dimm) at present, the
memory maximum size we have tested is 8 GB.
*1. Due to the limitation of AMD CPU spec, please refer to Memory QVL
for more information.
The SB850 Southbridge supports one PCI Express x4 slot which is PCI v2.0 compli-
ant and two PCI slots which are PCI v2.3 compliant. It integrates USB 2.0 interface,
supporting up to fourteen functional ports (eight USB ports and three USB 2.0
headers support additional six USB ports).
The Southbridge integrates a Serial ATA
host controller, supporting five SATA ports with maximum transfer rate up to 6.0
Gb/s each.