6MZX1
I440ZX Main Board
28
2-4-8
IDE 1 and IDE2
IDE 1/ IDE 2 both have 40 pins. There are 2 IDE connectors supported on this
system board. IDE1 is primary channel, and IDE2 is secondary channel. Each
channel supports 2 IDE devices, and 4 devices in total for this main board.
Pin
Signal
Pin
Signal
Pin 1
IDE reset
Pin 2
Ground
Pin 3
Data 7
Pin 4
Data 8
Pin 5
Data 6
Pin 6
Data 9
Pin 7
Data 5
Pin 8
Data 10
Pin 9
Data 4
Pin 10
Data 11
Pin 11
Data 3
Pin 12
Data 12
Pin 13
Data 2
Pin 14
Data 13
Pin 15
Data 1
Pin 16
Data 14
Pin 17
Data 0
Pin 18
Data 15
Pin 19
Ground
Pin 20
Key (NC)
Pin 21
PDREQ
Pin 22
Ground
Pin 23
I/O write
Pin 24
Ground
Pin 25
I/O read
Pin 26
Ground
Pin 27
NC
Pin 28
ALE
Pin 29
NC
Pin 30
Ground
Pin 31
IDE IRQ 14
Pin 32
IOSC15
Pin 33
Address A1
Pin 34
NC
Pin 35
Address A0
Pin 36
Address A2
Pin 37
IDE chip select 0
Pin 38
IDE chip select 1
Pin 39
IDE active
Pin 40
Ground
ID E 2
ID E 1
2
1
4 0
3 9
2
1
4 0
3 9