Gigabyte GA-P31-ES3G user manual Block Diagram, PCI Express Bus

Block Diagram

PCIe CLK

(100 MHz)

			PCI Express x16
		3 PCI Express x1
	PCIe CLK
(100 MHz)
		x 1					x 1	x 1
PCI Express Bus
				RTL8111C
					RJ45
						LAN
		PCI Bus

3 PCI

PCI CLK (33 MHz)

	LGA775					CPU CLK+/-
				(333/266/200 MHz)
Processor
		Host
		Interface		DDR2 1066/800/667 MHz
	Intel®				Dual Channel Memory
	P31/G31						MCH CLK
				(333/266/200 MHz)
			Dual BIOS
					ATA-100/66/33 IDE Channel
	Intel®					4 SATA 3Gb/s
	ICH7					8 USB Ports
									Floppy
			IT8718					LPT Port
	CODEC							COM Port

PS/2 KB/Mouse

Speaker Out)	Speaker Out)	Speaker Out)	SPDIF Out
(Center/Subwoofer	Line-Out (Front	Line-In (Rear
MIC

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