Cpu Fan Connector (Fan1); System Fan Connectors (Fan2, Fan3); Floppy Disk Port Connector (Fdd1) - AXIOMTEK SHB101 User Manual

SHB101 LGA775 SBC User's Manual
2.4.7

CPU Fan Connector (FAN1)

A CPU fan is always needed for cooling CPU heat. The CPU fan connector FAN1
provides power to the CPU fan.
Pin Signal
1 Ground
2 +12V
3 Rotation Detection
4 Speed Control
2.4.8

System Fan Connectors (FAN2, FAN3)

You can connect the system cooling fan cable to FAN2/FAN3 for system cooling fan
power.
Pin Signal
1 GND
2 +12V
3 Rotation Detection
2.4.9

Floppy Disk Port Connector (FDD1)

The board provides a 34-pin header type connector, FDD1, supporting up to two floppy
drives. The floppy drives may be any one of the following types: 5.25" 360KB/1.2MB and
3.5" 720KB/1.44MB/2.88MB.
Pin Signal
1 GND
4 No connector
7 GND
10 Motor enable A#
13 GND
16 No connector
19 GND
22 Write data#
25 GND
28 Write protect#
31 GND
34 Disk change#
12
Pin Signal
2 Drive Density Select
5 GND
8 Index#
11 GND
14 Drive select A#
17 GND
20 STEP#
23 GND
26 Track 0 #
29 No connector
32 Head selection#
Pin Signal
3 GND
6 No connector
9 GND
12 No connector
15 GND
18 Direction#
21 GND
24 Write gate#
27 GND
30 Read data#
33 No connector
Board and Pin Assignments