Aaeon MB-668 Manual page 25

Quick Installation Guide
Unlike floppy drives, IDE hard drives can be connected to
either end of the cable. The pin definitions for this section
are listed below:
( Both CN15 and CN16 share the same pin definitions.)
IDE LS-120 Connector (CN15) and Primary HDD Connector (CN16)
Pin Signal
1 IDE RESET
3 DATA 7
5 DATA 6
7 DATA 5
9 DATA 4
11 DATA 3
13 DATA 2
15 DATA 1
17 DATA 0
19 SIGNAL GND
21 N/C
23 IO WRITE
25 IO READ
27 IO CHANNEL READY
29 N/C
31 IRQ14
33 ADDR 1
35 ADDR 0
37 HARD DISK SELECT 0
39 IDE ACTIVE
41 Vcc
43 GND
Pin Signal
2 GND
4 DATA 8
6 DATA 9
8 DATA 10
10 DATA 11
12 DATA 12
14 DATA 13
16 DATA 14
18 DATA 15
20 N/C
22 GND
24 GND
26 GND
28 ALE
30 GND
32 IOCS16
34 N/C
36 ADDR 2
38 HARD DISK SELECT 1
40 MGND
42 MVcc
44 N/C
MB-668 Installation Guide 25