5 Auxiliary power 17 Password jumper 29 PCI Express x8 (4)*
6 Processor 1 18 Crisis recovery jumper 30 PCI Express x16
7 Processor 1 fan 19 Front chassis fan 31 Audio
8 Processor 2 20 Front control panel 32 Network/USB
9 Lower rear chassis fan 21 Front USB 33 USB
10 Processor 2 fan 22 Serial ATA (SATA) 34 Serial
11 Battery 23 Internal USB 35 Parallel
12 Memory fan 24 Front audio 36 Keyboard/Mouse
* Electrically x4 bandwidth
Table 4-4 System board components (continued)
58 Chapter 4 Removal and replacement procedures ENWW
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