MSI 990FXA User Manual

2-20
Hardware Setup
MS-7640
Chapter 2
Hardware Setup
MS-7640
Chapter 2
Slots
PCIE (Perpheral Component Interconnect Express) Slot
The PCIE slot supports the PCIE nterface expanson card.
PCIE x16 Slot
PCIE x1 Slot
PCI (Perpheral Component Interconnect) Slot
The PCI slot supports LAN card, SCSI card, USB card, and other add-on cards that
comply wth PCI spec󰘰catons.
32-bt PCI Slot
Important
When addng or removng expanson cards, make sure that you unplug the power sup-
ply 󰘰rst. Meanwhle, read the documentaton for the expanson card to con󰘰gure any
necessary hardware or software settngs for the expanson card, such as jumpers,
swtches or BIOS con󰘰guraton.
PCI Interrupt Request Routng
The IRQ, acronym of nterrupt request lne and pronounced I-R-Q, are hardware lnes
over whch devces can send nterrupt sgnals to the mcroprocessor. The PCI IRQ pns
are typcally connected to the PCI bus pns as follows:
Order1 Order2 Order3 Order4
PCI Slot1 INT E# INT F# INT G# INT H#

MSI 990FXA Specifications

General

Socket	AM3+
Form Factor	ATX
Memory Type	DDR3
Memory Slots	4
Max Memory	32 GB
PCI Express x1	2
PCI Slots	1
SATA 6Gb/s	6
Audio	Realtek ALC892
Chipset	AMD 990FX
PCIe Slots	4 x PCIe 2.0 x16
LAN	Realtek 8111E
Audio Channels	8