Intel E7520 user manual Chipset Components, Expansion Slots and Sockets, PCI Express* Connector

Dual-Core Intel Xeon processor LV / E7520 Chipset / 6300ESB ICH

6.1Chipset Components

	Table 6 lists the chipset and other major components on the evaluation board.
Table 6.	Chipset Components
	Component Designator	Component Description
	U5E1	Intel® E7520 Memory Controller Hub (MCH)
	U3F1	Intel® 6300ESB I/O Controller Hub (ICH)
	U1H1	Intel® 82802AC Firmware Hub (FWH)

6.2Expansion Slots and Sockets

	Table 7 lists the expansion slots and sockets on the evaluation board.
Table 7.	Expansion Slots and Socket
	Slot/Socket Reference Designator	Slot/Socket Description
	J2B2	PCI Express Port A
	J3B2	PCI Express Port B
	J3B1	PCI Express Port C
	J2B1	PCI Slot
	J1B1	PCI-X Slot 1
	J1B2	PCI-X Slot 2
	U5H1	CPU1
	U7H1	CPU0
	U1H1	Firmware Hub (FWH) BIOS Socket
	XB4G1	Battery

6.2.1PCI Express* Connector

Table 8 lists the signals assigned to the PCI Express* port A, B, and C slot connectors found at J2B2, J3B2, and J3B1 respectively.

Table 8.	PCI Express* Connector Pinout (Sheet 1 of 2)
	Pin	Signal	Pin	Signal
	A1	PRSNT1#	B1	12 V
	A2	12 V	B2	12 V
	A3	12 V	B3	12 V
	A4	GND	B4	GND
	A5	JTAG2	B5	SMCLK
	A6	JTAG3	B6	SMDAT
	A7	JTAG4	B7	GND
	A8	JTAG5	B8	3.3 V
	A9	3.3 V	B9	JTAG1
	A10	3.3 V	B10	3.3 VAUX
	A11	PWRGD	B11	WAKE#

Dual-Core Intel® Xeon® processor LV with Intel® E7520 Chipset and Intel® 6300ESB ICH
User’s Manual	April 2007
42	Order Number: 311274-009