Intel SE7221BK1LX Technical Manual page 40

37 HSOp(5)
38 HSOn(5)
39 GND
40 GND
41 HSOp(6)
42 HSOn(6)
43 GND
44 GND
45 HSOp(7)
46 HSOn(7)
47 GND
48 PRSNT2#
49 GND
KEY KEY
KEY KEY
50 -12V
51 +5V
52 INTD#
53 +5V
54 +5V
55 INTA#
56 GND
57 CLK3
58 GND
59 CLK2
60 GND
61 REQ2#
62 GND
63 GND
64 CLK1
65 GND
66 REQ1#
67 +3.3V
68 PME2#
69 AD[31]
70 AD[29]
71 GND
72 AD[27]
73 AD[25]
74 +3.3V
75 C/BE[3]#
76 AD[23]
28
8X end
Blocks a x16 PCI-
Express board
Blocks a x16 PCI-
Express board
SE7221BK1-E Technical Product Specification
37 GND
38 GND
39 HSIp(5)
40 HSIn(5)
41 GND
42 GND
43 HSIp(6)
44 HSIn(6)
45 GND
46 GND
47 HSIp(7)
48 HSIn(7)
49 GND
KEY KEY
KEY KEY
50 12V
51 INTB#
52 +5V
53 +5V
54 +5V
55 INTC#
56 GND
57 REQ3#
58 GND
59 GNT3#
60 GND
61 RST#
62 +5V
63
RSVD
64 GND
65 GNT2#
66 +3.3V
67 GNT1#
68 GND
69 PME1#
70 PME3#
71 AD[30]
72 +3.3V
73 AD[28]
74 AD[26]
75 GND
76 AD[24]
and allows a x8 to be
used instead