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User manual Dell, model Latitude CPx J

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Notebooks and Netbooks - Latitude CPx J (5.95 mb)

Notebooks and Netbooks - Latitude CPx J (754.08 kb)

Notebooks and Netbooks - Latitude CPx J (5.95 mb)

To activate the hibernate mode, make sure that you have configured the appropriate key combinations from the Power Management Properties window. Settings for this option in both the AC and Battery categories are: Disabled 30 Minutes 1 Hour 2 Hours 3 Hours 4 Hours 6 Hours 8 Hours (default) 12 Hours A change to the S2D Time-out option takes effect immediately (rebooting is not required). If you are not in the System Setup program, you can activate S2D Time-out mode at any time by pressing . Press the power switch to resume from S2D mode. Serial Port Serial Port allows you to map the address of the serial port or to disable the serial port. Settings for this option are: COM1 (the default) — Maps the serial port to COM1 COM2 — Maps the serial port to COM2 COM3 — Maps the serial port to COM3 COM4 — Maps the serial port to COM4 Disabled — Disables the serial port and its assigned COM address, freeing that interrupt for another device to use For a change in the Serial Port option to take effect, you must reboot your computer. Service Tag Service Tag displays the computer's service code, which was programmed into NVRAM by Dell during the manufacturing 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-selectable settings are available for this option. NOTE: Convert the service tag number into an express service code when prompted to do so the first time you turn on the computer (or use the program in the Dell Accessories folder). Keep the code handy in case you call Dell for technical assistance. The code helps Dell's automated support telephone system direct your call more efficiently. Smart CPU Mode Smart CPU Mode allows the computer to slow down the microprocessor automatically if it is not being actively 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 Power Management Properties window in the Control Panel. Certain features require configuration through 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 by allowing the computer to slow down the microprocessor when it is inactive Disabled — Keeps the microprocessor running at its normal operating speed regardless of microprocessor inactivity (can reduce battery life) NOTES: In rare situations, some communications software may not work properly when Smart CPU Mode is enabled. Dell recommends that you set Smart CPU Mode to Disabled if your computer is experiencing 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, educational, and utility programs.) However, you may experience performance degradation when recalculating a large spreadsheet or during an extensive screen redraw in a graphical program. Benchmark utilities may not perform as intended when doing microprocessor speed tests. If the software you use suffers significant performance degradation, set Smart CPU Mode to Disabled. A change to the Smart CPU Mode option takes effect immediately (rebooting is not required). Intel SpeedStep™ Setup SpeedStep Setup allows you to set the performance level for the microprocessor to maximum performance or minimum performance on battery or AC power. NOTES: This utility is available only for CPx J-Series systems. With systems running under ACPI, power management settings are controlled from the Power Management Properties window in the Control Panel. Certain features require configuration through the Power Management Properties window and others may not function with ACPI. Settings for this option are: Disabled (the default) — Sets the system to operate in the lowest performance mode possible. When this option is selected, the SpeedStep tab of the Power Management Properties window will not be available. Automatic — Allows the BIOS to set the system into either AC performance or Battery performance mode at POST, based on AC availability. Maximum Optimized AC — Allows the BIOS to set the microprocessor to highest performance mode possible, if the AC adapter is inserted. Battery Optimized — Allows the BIOS to set the microprocessor to the lowest performance mode possible, if the AC adapter is inserted. Suspend Time-out Suspend Time-out lets you determine how long your computer remains idle before activating suspend mode to conserve battery power. NOTE: With systems running under ACPI, power management settings are controlled from the Power Management Properties window in the Control Panel. Certain features require configuration through the Power Management Properties window and others may not fun...