2.2
Layout
Figure 2-1 shows the locations of the major components on the system board.
1
USB ports
2
PS/2 mouse port
3
ATX power connector
4
CPU card connector
5
Fan alarm connector
6
PCI,AGP, memory
controller
7
SW1
8
2-pin fan connector
9
System temperature
detector connector
10 CPU temperature
detector connector
11 DIMM sockets
12 Turbo LED connector (2-3)
13 Reset switch connector
14 FDD connector
15 Buzzer
16 IDE1 connector
17 IDE2 connector
18 Modem ring-in connector
19 HDD LED connector
20 Power/Suspend LED
connector
21 Battery
22 Power switch connector
23 PCI-to-ISA bridge
controller
24 AGP connector
25 PCI slot
26 ISA slot
27 Audio controller
28 System BIOS chip
29 Fax/modem connector
30 CD-in connector
31 Audio port function
32 Microphone-in port
33 Line-in port
34 Speaker-out port
35 Game/MIDI port
36 COM2 port
37 Parallel port
38 COM1 port
39 PS/2 keyboard port
40 Super I/O controller
41 Wake-on LAN
connector (not used)
Figure 2-1 System Board Layout
39
38 37
3635 34
33 32
3029
28
27
26
25
24
23
22
21
20
19
18
17
16
14
15
13
11 12
10
9
1
2
3
4
5 6
8
40 41
7
31
