Pointing Devices and Keyboard

When num lock mode on an external keypad is turned on, the num lock light on the notebook turns on. When the num lock mode on an external keypad is turned off, the num lock light on the notebook turns off.

If the external keypad is connected, the internal keypad cannot be turned on.

Enabling or Disabling Num Lock Mode as You Work

To turn num lock on or off on an external keypad as you work, press the num lk key on the external keypad, not on the notebook.

Enabling or Disabling Num Lock Mode at Startup

To set the notebook to start up with a connected external keypad in num lock mode, set your preference in Computer Setup. For more information about using Computer Setup, refer on this CD to the Software Guide, “Computer Setup” chapter.

To set the notebook to start up with the external keypad enabled:

1.Turn on or restart the notebook.

2.Press F10 while the F10 = ROM Based Setup message is displayed in the lower left corner of the screen.

To change the language, press F2.

For navigation instructions, press F1.

3.Select Advanced > Device Options, then press enter.

4.Select or clear the Num Lock State at Boot field:

To start up an external keypad with num lock mode turned on, select the field.

To start up an external keypad with num lock mode turned off, clear the field.

User Guide

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HP 309971-001 manual Enabling or Disabling Num Lock Mode as You Work

309971-001 specifications

The HP 309971-001 is a versatile and efficient power supply unit designed to meet the demanding requirements of various HP workstations and servers. As a fundamental component for reliable system performance, the 309971-001 delivers robust power while ensuring high energy efficiency, making it an excellent choice for professionals in need of dependable computing solutions.

One of the standout features of the HP 309971-001 is its impressive power output capacity, typically rated around 460 watts. This substantial power capacity enables it to support high-performance components, including powerful CPUs, advanced graphics cards, and extensive memory configurations. With the ability to accommodate these high-demand specifications, the 309971-001 is ideal for users engaged in graphic design, video editing, simulation modeling, and other resource-intensive applications.

The HP 309971-001 is designed using advanced technologies that guarantee maximum reliability and operational efficiency. It often incorporates Active Power Factor Correction (PFC), which improves energy efficiency by reducing the harmonic distortion in electrical currents. This not only leads to better performance but also contributes to lower operational costs in the long run.

In terms of physical characteristics, the HP 309971-001 features a compact and modular design that allows for easy installation and maintenance. Its built-in cooling mechanisms, including efficient fan configurations, operate silently to ensure a noise-free working environment, while managing the thermal output effectively during peak operational periods.

Compatibility is another critical aspect of the HP 309971-001. It is specifically designed to work seamlessly with a range of HP workstation models, enhancing its usability across multiple systems. This means that users can upgrade or replace existing power supplies without extensive modifications, providing a cost-effective solution when upgrading hardware or replacing faulty components.

Additionally, the unit often meets various safety and regulatory standards, ensuring that it operates within safe parameters while protecting both the system and the user. Features such as over-voltage protection, short-circuit protection, and overheating safeguards contribute to the longevity of connected components, ultimately enhancing the overall reliability of the system.

In conclusion, the HP 309971-001 power supply unit excels in performance, efficiency, and reliability. Its strong power output, advanced technology integration, and user-friendly design make it a valuable asset for professionals who demand high-quality computing solutions in their workstations and servers.