Gigabyte GA-H55-USB3 Manual - Page 8

GA-H55-USB3 Motherboard Block Diagram - memory

Page 8 highlights

GA-H55-USB3 Motherboard Block Diagram 1 PCI Express x16 CPU CLK+/- (133 MHz) PCIe CLK (100 MHz) LGA1156 CPU DDR3 1666 (O.C.)/1333/1066/800 MHz Dual Channel Memory DMI Interface FDI Interface PCI Express Bus LAN RJ45 x16 x1 Gen 2 2 USB 3.0 RTL8111D Switch x1 Gen 1 NEC D720200F1 PCI Express X1 X1 X1 Bus x1 GIGABYTE SATA2 Intel® H55 3 PCI Express x1 2 SATA 3Gb/s PCI Bus ATA-133/100/66/33 IDE Channel TSB43AB23 2 IEEE 1394a CODEC DisplayPort, HDMI, or DVI-D (Note 1) D-Sub Dual BIOS 6 SATA 3Gb/s 12 USB 2.0/1.1 Ports (Note 2) LPC Bus IT8720 Floppy COM PS/2 KB/Mouse Surround Speaker Out Center/Subwoofer Speaker Out Side Speaker Out MIC Line Out Line In S/PDIF In S/PDIF Out 3 PCI PCI CLK (33 MHz) (Note 1) You can use only one of the onboard digital graphics ports (e.g. DisplayPort, HDMI, and DVI-D) for output when in the BIOS Setup program or when during the POST screens. (Note 2) Two share the same ports with USB 3.0. - 8 -

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GA-H55-USB3 Motherboard Block Diagram
(Note 1) You can use only one of the onboard digital graphics ports (e.g. DisplayPort, HDMI, and DVI-D) for
output when in the BIOS Setup program or when during the POST screens.
(Note 2) Two share the same ports with USB 3.0.
LGA1156
CPU
Intel
®
H55
PCI Bus
PCI Express Bus
CPU CLK+/- (133 MHz)
PCIe CLK
(100 MHz)
6 SATA 3Gb/s
Dual BIOS
Center/Subwoofer Speaker Out
Line Out
MIC
Line In
S/PDIF In
S/PDIF Out
Side Speaker Out
Surround Speaker Out
CODEC
3 PCI
PCI CLK
(33 MHz)
DDR3 1666 (O.C.)/1333/1066/800 MHz
Dual Channel Memory
1 PCI Express x16
x16
TSB43AB23
2 IEEE 1394a
D-Sub
DisplayPort, HDMI, or DVI-D
(Note 1)
DMI Interface
FDI Interface
PS/2 KB/Mouse
Floppy
COM
IT8720
LPC
Bus
PCI Express
Bus
3 PCI Express x1
x1
ATA-133/100/66/33
IDE Channel
GIGABYTE
SATA2
2 SATA 3Gb/s
X1
LAN
RTL8111D
RJ45
Gen 1
2 USB 3.0
NEC
D720200F1
Switch
Gen 2
x1
x1
12 USB 2.0/1.1 Ports
(Note 2)
X1
X1