Socket Mobile Pentium 4 Full Size PICMG CPU Card IB810 - Manual (Page 24)

INSTALLATIONS
20 IB810 User’s Manual
FAN3: Auxiliary Fan Power Connector
FAN3 is a 3-pin header for a 12V fan.
Pin # Signal Name
1 Ground
2 +12V
3 Rotation detection
J4: Floppy Drive Connector
J4 is a 34-pin header and will support up to 2.88MB floppy drives.
Signal Name Pin # Pin # Signal Name
Ground 1 2 RM/LC
Ground 3 4 No connect
Ground 5 6 No connect
Ground 7 8 Index
Ground 9 10 Motor enable 0
Ground 11 12 Drive select 1
Ground 13 14 Drive select 0
Ground 15 16 Motor enable 1
Ground 17 18 Direction
Ground 19 20 Step
Ground 21 22 Write data
Ground 23 24 Write gate
Ground 25 26 Track 00
Ground 27 28 Write protect
Ground 29 30 Read data
Ground 31 32 Side 1 select
J4
Ground 33 34 Diskette change