Intel® Server Board SE7520AF2 TPS
Connectors, Headers and Jumpers
Revision 1.2
229
Intel order number C77866-003
GND – HSBP_B
8.7 PCI Slot Connector
The Intel® SE7520AF2 Server Board enables 5 PCI expansion slots: Slot 1 (PCI-X 64/133), Slot
3 (PCI Exp x4), Slot 4 (PCI Exp x8), Slot 5 (PCI-X 64/133), Slot 6 (PCI-X 64/100). The PCI
Express* slots both are enabled with a x8 physical connector, although only Slot 4 has a x8
interface (Slot 3 has a x4 interface). All PCI slots support full-length full-height PCI add-in cards.
The tables below list the characteristics for the PCI slots and their pin-out.
Table 121. PCI Slot Characteristics
Slot No.
Mode
Width
Speed
1
Voltage
Notes
1 PCI-X
64-bit
133/100/66
MHz 3.3V
3
PCI Express
Serial
2.5GHz x4
Diff
x8 connector
4
PCI Express
Serial
2.5GHz x8
Diff
x8 connector
5 PCI-X
64-bit
133/100/66
MHz 3.3V
6 PCI-X
64-bit
100/66
MHz
3.3V
2-slot riser support enabled
Table 122. Slot 1 and 5 PCI-X 64bit 3.3V Pin-out (J1D4, J4D1)
Pin
Side B
Side A
Pin
Side B
Side A
1 -12
V
TRST#
49
M66EN
AD[09]
2 TCK
+12
V
50
Ground
Ground
3 Ground
TMS
51
Ground
Ground
4 TDO
TDI
52
AD[08]
C/BE[0]#
5
+5 V
+5 V
53
AD[07]
+3.3 V
6
+5 V
INTA#
54
+3.3 V
AD[06]
7 INTB#
INTC#
55
AD[05]
AD[04]
8 INTD#
+5
V
56
AD[03]
Ground
9 PRSNT1# RSV
57
Ground
AD[02]
10 RSV
+3.3
V
58 AD[01]
AD[00]
11
PRSNT2#
RSV
59
+3.3 V
+3.3 V
12
Connector Key
Connector Key
60 ACK64#
REQ64#
13
Connector Key
Connector Key
61
+5 V
+5 V
14
RSV
3.3 VAUX
62
+5 V
+5 V
15 Ground
RST#
Connector Key
Connector Key
16 CLK
+3.3
V
Connector Key
Connector Key
17 Ground
GNT#
63 RSV
Ground
18 REQ#
Ground
64 Ground
C/BE[7]#
19 +3.3
V
PME#
65 C/BE[6]#
C/BE[5]#
1
The actual bus mode/speed is determined by capabilities of the adapter installed on that bus. PCI Express slots will
attempt to link train at their supported link and fall-back to a x1 link should the adapter not support the slot’s maximun
link.