Intel Desktop Board D845EPI Technical Product Specification
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Table 20. Rear Chassis Fan Connector
Pin Signal Name
1 Ground (default) or
FNT_REAR_FAN_CTRL (optional)
2 +12 V
3 No connect (default) or
REAR_TACH_OUT (optional)
Table 21. Processor Fan Connector
Pin Signal Name
1 Ground (default) or CPU_FAN_TACH
(optional)
2 +12 V
3 No connect (default) or
CPU_FAN_TACH
Table 22. Main Power Connector
Pin Signal Name Pin Signal Name
1 +3.3 V 11 +3.3 V
2 +3.3 V 12 -12 V
3 Ground 13 Ground
4 +5 V 14 PS-ON# (power supply remote on/off)
5 Ground 15 Ground
6 +5 V 16 Ground
7 Ground 17 Ground
8 PWRGD (Power Good) 18 No connect
9 +5 V (Standby) 19 +5 V
10 +12 V 20 +5 V
Table 23. Front Chassis Fan Connector
Pin Signal Name
1 Ground (default) or
FNT_REAR_FAN_CTRL (optional)
2 +12 V
3 No connect (default) or
FRONT_FAN_TACH (optional)
Table 24. Chassis Intrusion Connector
Pin Signal Name
1 Intruder
2 Ground