INSTALLATIONS
FAN1: System Fan Power Connector
FAN1 is a 3-pin header for system fans. The fan must be a 12V (500mA)
fan.
Pin #
Signal Name
1 Ground
2 +12V
3 Rotation
detection
FAN2: CPU Fan Power Connector
FAN2 is a 3-pin header for the CPU fan. The fan must be a 12V fan.
The
CPU fan has a Smart Fan function that can be enabled with the BIOS.
Pin #
Signal Name
1 Ground
2 +12V
3 Rotation
detection
IDE1, IDE2: 40-pin and 44-pin IDE Connectors
IDE1
Signal Name
Pin #
Pin #
Signal Name
Reset IDE
1
2
Ground
Host data 7
3
4
Host data 8
Host data 6
5
6
Host data 9
Host data 5
7
8
Host data 10
Host data 4
9
10
Host data 11
Host data 3
11
12
Host data 12
Host data 2
13
14
Host data 13
Host data 1
15
16
Host data 14
Host data 0
17
18
Host data 15
Ground 19
20
Protect
pin
DRQ0 21
22 Ground
Host IOW
23
24
Ground
Host IOR
25
26
Ground
IOCHRDY 27 28 Host
ALE
DACK0 29
30 Ground
IRQ14 31
32
No
connect
Address 1
33
34
No connect
Address 0
35
36
Address 2
Chip select 0
37
38
Chip select 1
Activity 39
40 Ground
MB740 User’s Manual
15
Summary of Contents for MD740
Page 1: ...MB740 AMD Geode NX Mini ITX Motherboard USER S MANUAL Version 1 0...
Page 4: ...THE MB740 MINI ITX MOTHERBOARD iv MB740 User s Manual...
Page 8: ...INTRODUCTION Board Dimensions 4 MB740 User s Manual...
Page 24: ...INSTALLATIONS 20 MB740 User s Manual This page is intentionally left blank...
Page 44: ...BIOS SETUP 40 MB740 User s Manual This page is intentionally left blank...