IBM 2251 用户手册
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A40/A40P/A40i system board layout
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System board locations
1CPU fan connector
17 Wake on LAN
2Microprocessor
18 PCI slot 3
3DIMM 0
19 PCI slot 2
4DIMM 1
20PCI slot 1
5Power LED connector
21AGP slot
6RFID connector
22CD-ROM audio
7Front USB connector
23 Speaker connector
8Secondary IDE connector
24 Audio output
9Diskette connector
25 Audio input
10Primary IDE connector
26 Serial port 2
11Power connector
27 Microphone input
12CMOS clear/recovery jumper
28 Monitor port
13Fan connector
29 Parallel port
14Battery
30 Serial port 1
15SCSI adapter LED connector
31 USB connectors
16 Alert on LAN
32 Mouse and keyboard connectors
Chapter 5. FRU Replacements
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