AMD MD740 User Manual

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

AMD MD740 Specifications

General

Brand	AMD
Model	MD740
Category	Motherboard
Language	English