Serial Ports; Ide Connector; Serial Port Connector Pinout (J4); Pci Ide1 (Jp3) And Ide2 (Jp4) Connector - Intel 440BX Manual

Hardware Reference
4.5.6

Serial Ports

COM1 is the top connector. COM2 is the bottom connector.
Table 10. Serial Port Connector Pinout (J4)
Pin
1
2
3
4
5
6
7
8
9
4.5.7

IDE Connector

Table 11. PCI IDE1 (JP3) and IDE2 (JP4) Connector
Pin
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
32
Signal Name
DCD
Serial In (SIN)
Serial Out (SOUT)
DTR
GND
DSR
RTS
CTS
RI
Signal Name
Reset IDE
Host Data 7
Host Data 6
Host Data 5
Host Data 4
Host Data 3
Host Data 2
Host Data 1
Host Data 0
Ground
DRQ3
I/O Write#
I/O Read#
IOCHRDY
DACK3#
IRQ14
Addr 1
Addr 0
Chip Select 0#
Activity
®
Intel 440Bx Scalable Performance Board Development Kit Manual
Pin Signal Name
2 Ground
4 Host Data 8
6 Host Data 9
8 Host Data 10
10 Host Data 11
12 Host Data 12
14 Host Data 13
16 Host Data 14
18 Host Data 15
20 Key
22 Ground
24 Ground
26 Ground
28 BALE
30 Ground
32 IOCS16#
34 Ground
36 Addr 2
38 Chip Select 1#
40 Ground