Intel SE7520JR2 manual 178

Connectors and Jumper Blocks Intel® Server Board SE7520JR2

Pin-	PCI Spec	Description
Side	Signal
B
62	GND
61	IRDY#
		KEYWAY
		KEYWAY
60	+3.3V
59	DEVSEL#
58	PCI-XCAP
57	LOCK#
56	PERR#
55	+3.3V
54	SERR#
53	+3.3V
52	C/BE[1]#
51	AD[14]
50	GND
49	AD[12]
47	AD[10]
47	M66EN
46	Mode 2
45	GND
44	AD[08]
43	AD[07]
42	+3.3V
41	AD[05]
40	AD[03]
39	GND
38	AD[01]
37	+3.3V	Was Vio 3.3V or 1.5V
36	ACK64#
	/ECC1
35	+5V
34	+5V
33	RSVD
32	GND
31	C/BE[6]#
30	C/BE4#
29	GND
28	AD[63]
27	AD[61]
26	V (I/O)	3.3V or 1.5V
25	AD[59]

Pin-	PCI Spec	Description
Side A	Signal
62	FRAME#
61	GND
		KEYWAY
		KEYWAY
60	TRDY#
59	GND
58	STOP#
57	+3.3V
56	SMBD	Daisy chain to all slots
55	SMBCLK	Daisy chain to all slots
54	GND
53	PAR
	/ECC0
52	AD[15]
51	+3.3V
50	AD[13]
49	AD[11]
47	GND
47	AD[09]
46	C/BE[0]#
45	+3.3V	Was GND
	+3.3V
44
	+3.3V
43
42	AD[06]
41	AD[04]
40	GND
39	AD[02]
38	AD[00]
37	+3.3V	Was Vio 3.3V or 1.5V

36REQ64#

/ECC6

35	+5V
34	+5V
33	GND
32	C/BE[7]#
31	C/BE[5]#
30	V (I/O)	3.3V or 1.5V
29	PAR64
	/ECC7
28	AD[62]
27	GND
26	AD[60]
25	AD[58]

178	Revision 1.0
	C78844-002