Gigabyte GA-P55M-UD4 Manual - Page 8

Block Diagram - system

Page 8 highlights

Block Diagram 1 PCI Express x16 (Note) 2 PCI Express x8 (Note) PCIe CLK or (100 MHz) LGA1156 CPU CPU CLK+/- (133 MHz) DDR3 2200/1333/1066/800 MHz Dual Channel Memory x16 x8 Switch PCI Express Bus PCI Express Bus x4 x1 x1 RTL8111D RJ45 GIGABYTE SATA2 1 PCI Express x4 LAN 2 SATA 3Gb/s ATA-133/100/66/33 IDE Channel PCI Bus TSB43AB23 DMI Interface Intel® P55 Dual BIOS 6 SATA 3Gb/s 14 USB Ports LPC Bus IT8720 CODEC Floppy PS/2 KB/Mouse 2 IEEE 1394a Surround Speaker Out Center/Subwoofer Speaker Out Side Speaker Out MIC Line Out Line In S/PDIF In S/PDIF Out 1 PCI PCI CLK (33 MHz) (Note) For optimum performance, if only one PCI Express graphics card is to be installed, be sure to install it in the PCIEX16 slot. The PCIEX8 slot shares bandwidth with the PCIEX16 slot. When the PCIEX8 slot is populated with a PCI Express graphics card, the PCIEX16 slot will operate at up to x8 mode. - 8 -

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Block Diagram
(Note)
For optimum performance, if only one PCI Express graphics card is to be installed, be sure to install it in the
PCIEX16 slot. The PCIEX8 slot shares bandwidth with the PCIEX16 slot. When the PCIEX8 slot is populated with
a PCI Express graphics card, the PCIEX16 slot will operate at up to x8 mode.
PS/2 KB/Mouse
14 USB Ports
LGA1156
CPU
DMI
Interface
Intel
®
P55
PCI Bus
PCI Express Bus
PCI Express Bus
IT8720
Floppy
CPU CLK+/- (133 MHz)
PCIe CLK
(100 MHz)
6 SATA 3Gb/s
or
1 PCI Express x16
(Note)
2 PCI Express x8
(Note)
Dual BIOS
Center/Subwoofer Speaker Out
Line Out
MIC
Line In
S/PDIF In
S/PDIF Out
Side Speaker Out
Surround Speaker Out
CODEC
1 PCI Express x4
1 PCI
PCI CLK
(33 MHz)
TSB43AB23
2 IEEE 1394a
x1
ATA-133/100/66/33
IDE Channel
GIGABYTE
SATA2
Switch
2 SATA 3Gb/s
DDR3 2200/1333/1066/800 MHz
Dual Channel Memory
x4
x8
x16
LPC
Bus
LAN
x1
RTL8111D
RJ45