Intel E7520 On-Board Connectors, Processor Sockets, Firmware Hub FWH Bios Socket, Battery

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

Table 10. PCI-X Connector Pinout (Sheet 4 of 4)

Pin	Signal	Pin	Signal
A90	GND	B90	AD33
A91	AD32	B91	GND
A92	Reserved	B92	Reserved
A93	GND	B93	Reserved
A94	Reserved	B94	GND

6.2.4Processor Sockets

The processor is keyed so that it fits into the socket in one particular orientation.

6.2.5Firmware Hub (FWH) BIOS Socket

The system boot ROM is installed on the Intel® 82802AC Firmware Hub. The FWH is addressable on the LPC bus off the Intel® 6300ESB ICH.

The FWH or BIOS flash memory fits into the 32-pin socket U1H1, giving you the option to remove and reprogram it without the use of soldering equipment. There is also a flash utility that is supplied with the BIOS that can be used to program the FWH. This is the recommended way to program the FWH.

There is only one correct orientation for the FWH to be placed into its socket. Line up the circular marking on the FWH, denoting pin one, with the arrow marking on the evaluation board socket.

6.2.6Battery

A type 2032, 3 V lithium coin cell battery is used in socket XB4G1 on the evaluation board. The battery is held in place by a metal arm. To remove the battery, gently push the metal arm and remove the battery.

6.3	On-Board Connectors
Table 11.	On-Board Connector
	Connector Reference Designator	Connector Description
	J1G1, J1F4	SATA Connector
	J1K2	IDE Connector
	JJ1K1	Floppy Connector
	J9F4	ITP Connector
	J2G1	Front Panel Connector

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