American Megatrends Apollo IV User Manual page 42

Step 9 Attach IDE Drive,
SECONDARY IDE Pinout The SECONDARY pinout is:
Pin
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
38 Apollo IV PCI Pentium ISA Motherboard User's Guide
Continued
Use Pin
-RESET 2
DATA7 4
DATA6 6
DATA5 8
DATA4 10
DATA3 12
DATA2 14
DATA1 16
DATA0 18
GND 20
N/C 22
-IOW 24
-IOR 26
IDERDY 28
N/C 30
INT15 32
HA1 34
HA0 36
-CS2 38
N/C 40
Use
GND
DATA8
DATA9
DATA10
DATA11
DATA12
DATA13
DATA14
DATA15
KEY (N/C)
GND
GND
GND
ALE
GND
-IOCS16
N/C
HA2
-CS3
GND