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Chapter 2. System board features 17
The small rocker switch has three functions. By moving switch 1 to the On position,
you activate the diskette write-protect feature. By moving switch 2 to the On position,
you clear the CMOS. This rocker switch is also used for flash recovery. See the PC
300GL and PC 300PL User Guide for instruction.
Cable connectors
Connections for attaching devices are provided on the back of the computer. Each
connection has a corresponding device symbol. The connectors are:
•USB (2)
•Mouse
•Keyboard
•Serial (2)
•Parallel
• Monitor
• Ethernet adapter with RJ-45 connector (some models only)
• Integrated audio controller with line in, line out, and microphone connectors
Connector panel
On the following connector panel illustrations, note the device connection symbols. A
connector provided by an adapter might not have an identifying symbol.
For pin-out details on connectors, see “Appendix A. Connector pin assignments,” on
page 33.
466
700
933
Off On Off On Off Off Off Off
500
750
1000
Off On Off Off Off Off Off Off
533
800
1066
Off Off On On Off Off Off Off
Reserved Off Off Off On Off Off Off Off
Table 7. Small rocker switch settings
Function On
Diskette write-protect Switch 1
Clear CMOS Switch 2
Table 6. Large rocker switch settings
Microprocessor
speed
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