Gigabyte GA-990XA-UD3 Manual - Page 8
GA-990XA-UD3 Motherboard Block Diagram - am3 amd 990x
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GA-990XA-UD3 Motherboard Block Diagram 2 PCI Express x8 1 PCI Express x16 CPU CLK+/- (200 MHz) AM3+/AM3 CPU DDR3 2000(O.C.)/1866/1600/1333/1066 MHz or Dual Channel Memory PCIe CLK (100 MHz) x8 x16 PCI Express Bus Switch x1 x1 PCIe CLK (100 MHz) Realtek RTL8111E RJ45 Etron EJ168 LAN 2 USB 3.0/2.0 PCI Express Bus PCIe CLK (100 MHz) x4 1 PCI Express x4 PCI Bus VIA VT6308 Hyper Transport Bus 2 PCI Express x1 2 USB 3.0/2.0 AMD 990X Etron EJ168 PCIe CLK x1 x1 x1 (100 MHz) PCI Express Bus 14 USB 2.0/1.1Ports AMD SB950 6 SATA 6Gb/s Dual BIOS CODEC LPC Bus iTE IT8720 COM Port PS/2 KB/Mouse 2 IEEE 1394a Surround Speaker Out Center/Subwoofer Speaker Out Side Speaker Out MIC Line Out Line In S/PDIF Out 2 PCI PCI CLK (33 MHz) - 8 -
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GA-990XA-UD3 Motherboard Block Diagram
AM3+/AM3 CPU
Hyper Transport Bus
AMD 990X
2 PCI
PCI Bus
PCI CLK
(33 MHz)
PCIe CLK
(100 MHz)
PCI Express Bus
CPU CLK+/- (200 MHz)
Dual BIOS
COM Port
LPC
Bus
1 PCI Express x4
DDR3 2000(O.C.)/1866/1600/1333/1066 MHz
6 SATA 6Gb/s
LAN
RJ45
x4
PS/2 KB/Mouse
14 USB 2.0/1.1Ports
iTE
IT8720
Realtek
RTL8111E
x1
2 USB 3.0/2.0
Etron
EJ168
x1
Dual Channel Memory
PCIe CLK
(100 MHz)
1 PCI Express x16
2 PCI Express x8
Switch
or
x8
x16
x1
2 USB 3.0/2.0
PCI Express Bus
2 PCI Express x1
x1
x1
PCIe CLK
(100 MHz)
Etron
EJ168
VIA VT6308
2 IEEE 1394a
Center/Subwoofer Speaker Out
Line Out
MIC
Line In
S/PDIF Out
Side Speaker Out
Surround Speaker Out
CODEC
AMD SB950
PCI Express Bus
PCIe CLK
(100 MHz)