Dell Latitude CPx J Series User Manual

Also see for Latitude CPx H Series: Service manual Service manual

Dell Latitude CPx J Series User Manual Manual pdf 141 page image

COM1 (the default) — Maps the serial port to COM1COM2 — Maps the serial port to COM2COM3 — Maps the serial port to COM3COM4 — Maps the serial port to COM4Disabled — Disables the serial port and its assigned COM address, freeing that interrupt for anotherdevice to useFor a change in the Serial Port option to take effect, you must reboot your computer.Service TagService Tag displays the computer's service code, which was programmed into NVRAM by Dell during themanufacturing process. Be prepared to supply this identification during technical assistance or service calls.The service tag is also accessed by certain Dell support software, including diagnostics. No user-selectablesettings are available for this option.NOTE: Convert the service tag number into an express service code when prompted to do so the firsttime you turn on the computer (or use the program in the Dell Accessories folder). Keep the codehandy in case you call Dell for technical assistance. The code helps Dell's automated supporttelephone system direct your call more efficiently.Smart CPU ModeSmart CPU Mode allows the computer to slow down the microprocessor automatically if it is not beingactively used. This feature is a key component to the thermal control of the system.NOTE: With systems running under ACPI, power management settings are controlled from the PowerManagement Properties window in the Control Panel. Certain features require configurationthrough the Power Management Properties window and others may not function with ACPI.Settings for this option are:Enabled (the default) — Saves power, helps to lower system temperatures, and extends battery life byallowing the computer to slow down the microprocessor when it is inactiveDisabled — Keeps the microprocessor running at its normal operating speed regardless ofmicroprocessor inactivity (can reduce battery life)NOTES: In rare situations, some communications software may not work properly when Smart CPUMode is enabled. Dell recommends that you set Smart CPU Mode to Disabled if your computer isexperiencing performance degradation.Interactive application programs should function well when Smart CPU Mode is set to Enabled.(Examples of interactive programs include spreadsheet, text editor, graphics design, entertainment,