B-2 Connector Pin Assignments
Table Appendix B-1 System Board Connector Descriptions
Function
Connector Number
Type
Video port
P1
15 pin female sub D-shell
Printer/SCSI ports
P2
25 pin female sub D-shell and
50-pin D-shell (stacked
connector)
Serial port 1
P3
9 pin male D-shell
Keyboard/mouse
P4
6-pin PS/2 style connector
Serial port 1
P5
9 pin male D-shell
EISA extender card
J1
200 pin plug connector (not
used)
Diskette drive
J2
2 x 17 pin header
Cache SIMM connector
J3
160 pin vertical connector
Reset header
J4
2 pin header
Fan
J6, J7
2 pin header
Video feature connector
J8
2 x 13 pin header
Memory card connector
J9
120 pin vertical plug connector
Speaker
J10
4 pin header
Hard disk drive busy lamp
J11
4 pin header
Power lamp
J12
1 x 4 pin header
Internal SCSI
J14
2 x 25 pin header
Power
J17, J21, J31
6 pin vertical connector
LED display
J19
2 x 10 header
EISA connectors
J22 - J25
188 pin vertical connector
PCI IDE interface (primary)
J30
2 x 20 pin header
PCI IDE interface (secondary)
J32
2 x 20 pin header
Primary cache WB/WT
J33
3 pin header
Pipeline enable/disable
J34
3 pin header
Interlock (not used)
J35
2 pin header
Server management (not used)
J36
20 pin header
IMA connector
J38
50 pin header
VR/VRE
J39
3 pin header
PCI bus slot connectors
JA1, JA2
116 pin vertical connector