Intel E7520 user manual Jumpers and Jumper Functions

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

6.4Jumpers

The evaluation board has a number of jumpers that control various functions of the system.

Table 16 presents the descriptions of the jumpers and their settings.

Figure 22 illustrates the locations of the jumpers on the board.

Table 16.	Jumpers and Jumper Functions
	Jumper	Function / Default Setting		Comments
	J9E2	ITP Mode / 1-2 and 3-4	2-4	= UP
			1-2 and 3-4 = DP
	J7K2	CPU 0 Fan Override / 1-2
	J6K1	CPU 1 Fan Override / 1-2
	J4G1	Clear CMOS / 1-2	1-2	= Normal use
			2-3	= Clear CMOS
	J3K1	CPU1 VIDs / 1.325 V (one jumper on position 5)
	J4A1	5 VAUX enable / 1-2
	J4B1	3.3 VAUX Enable / 1-2
	J8E1	S3 Enable / 1-2
	J4F6	Memory PLL0 / 1-2	Valid for both FSB speeds
	J3J1	CPU BSEL 0 / Open	Open = 667 MT/s
			2-3	= 533 MT/s

	Dual-Core Intel® Xeon® processor LV with Intel® E7520 Chipset and Intel® 6300ESB ICH
April 2007	User’s Manual
Order Number: 311274-009	51