User manual

APC-3X97A user manual
21
11. IDE (2.0MM 2X22) IDE connector: the motherboard provides a 44-pin IDE connector for
connection of 2.5' IDE hard disk drivers and supports up to 2 IDE devices.
Signal Name
Pin#
Pin#
Signal Name
RESET
1
2
Ground
IDE_PDD7
3
4
IDE_PDD8
IDE_PDD6
5
6
IDE_PDD9
IDE_PDD5
7
8
IDE_PDD10
IDE_PDD4
9
10
IDE_PDD11
IDE_PDD3
11
12
IDE_PDD12
IDE_PDD2
13
14
IDE_PDD13
IDE_PDD1
15
16
IDE_PDD14
IDE_PDD0
17
18
IDE_PDD15
Ground
19
20
NC
DREQ
21
22
Ground
IOW#
23
24
Ground
IOR#
25
26
Ground
IOCHRDY
27
28
Ground
DACK#
29
30
Ground
IRQ14
31
32
NC
Address 1
33
34
IDE_PDIAG
Address 0
35
36
Address 2
Chip select 0
37
38
Chip select 1
Activity
39
40
Ground
+5V
41
42
+5V
Ground
43
44
NC
Note:
If two IDE devices are connected, CF card connection cannot be realized.
12. F_PANEL (2.0MM 2X5) Front panel connector
Signal Name
Pin#
Pin#
Signal Name
HD LED+
1
2
POWER
LED+
HD LED-
3
4
POWER LED-
Ground
5
6
PWRBTN
RESET
7
8
Ground
BUZZER+
9
10
BUZZER-
PIN1&3: They are used to connect hard disk activity LED. The LED blinks when the hard disk is
reading or writing data.
PIN2&4: They are used to connect power LED. When the system is powered on or under S0/S1 state,
the LED is normally on; when the system is under S4/S5 state, the LED is off.