GIGABYTE AMD Socket AM2 Processor Motherboard GA-M55SLI-S4 - Manual (Page 8)

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Block Diagram
Center/Subwoofer Spear Out
AMD Socket
AM2 CPU
CPUCLK+/-(200MHz)
Hyper Transport Bus
nVIDIA ®
nForce4
SLI
DDRII 400/533/667/800MHz DIMM
IT8716
4 SATA 3Gb/s
ATA33/66/100/133
IDE Channels
PCICLK
(33MHz)
2 PCI
PCI Bus
10 USB
Ports
Dual Channel Memory
Floppy
PS/2 KB/Mouse
LPT Port LPC BUS
COM Port
Line-Out
MIC
CODEC
Line-In
SPDIF In
SPDIF Out
Side Speaker Out
Surround Speaker Out
PCI Express x 1 Bus
BIOS
RJ45
Marvell
88E1116
3 PCI Express x 1
x 1
PCI-ECLK
(100MHz)
x 1 x 1
3 IEEE1394
TSB43AB23
PCI Express x 16 Bus
2 PCIE x 8 1 PCIE x 16
or
SLI Jumper
PCI-ECLK
(100MHz)
SLI Mode Normal Mode