HP 309971-001 Viewing Battery Charge Information Fn+F8, Displaying System Information Fn+esc

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Pointing Devices and Keyboard

Viewing Battery Charge Information (Fn+F8)

Press Fn+F8 to display charge information for all installed battery packs. The display indicates which battery packs are charging and reports the amount of charge remaining in each battery pack.

Battery pack locations are indicated by number:

Location 1 is the primary battery pack.

Location 2 is the travel battery pack.

Adjusting the Screen Brightness (Fn+F9 and Fn+F10)

Pressing the Fn+F9 and the Fn+F10 hotkeys respectively increases and decreases the display brightness to several levels of brightness. Press Fn+F9 to lower the brightness level, and press Fn+F10 to increase the brightness level. Holding down the hotkeys changes the brightness level incrementally.

Displaying System Information (Fn+esc)

Press Fn+esc to display information about system hardware components and software version numbers. Press Fn+esc a second time to remove the system information from the screen.

The system BIOS date is the version number of the system ROM. The BIOS date may display in a decimal format, for example, 10/19/2002 F.07.

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User Guide

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Contents Hardware Guide Hardware Guide First Edition April Document Part Number Contents Battery Packs Audio and Video Specifications Pointing Device Components Pointing Device ComponentsHardware Guide Top Components Top ComponentsFn key Left Side Components Left Side ComponentsRight Side Components Right Side ComponentsFront View Components Front View ComponentsRear Panel Components Rear Panel ComponentsDC power connector Bottom Components Bottom ComponentsBottom Components Lights LightsLights Pointing Devices and Keyboard Using a Pointing DeviceComponent Description Using the TouchPad Using the Pointing StickSetting Pointing Device Preferences Using an External MouseFn and Function Keys Using Hotkeys and Shortcut KeysHotkey and Shortcut Key Quick Reference Initiating Standby Fn+F3 Switching Display and Image Fn+F4Viewing Battery Charge Information Fn+F8 Adjusting the Screen Brightness Fn+F9 and Fn+F10Displaying System Information Fn+esc Using Hotkeys and Shortcut Keys with External Keyboards Quick Launch buttons Using Quick Launch ButtonsKeypads Using the Internal KeypadEnabling and Disabling the Internal Keypad Using an External KeypadEnabling or Disabling Num Lock Mode as You Work Pointing Devices and Keyboard Battery Packs Inserting or Removing the Primary Battery Pack Snap the battery pack into place Removing the primary battery pack Inserting or Removing the Battery Pack Using the Optional Travel BatteryInserting the battery pack into the travel battery caddy Attaching or Detaching the Travel Battery Attaching the optional travel battery Locking the optional travel battery onto the notebook Charging a Battery Pack Battery light Monitoring the Charge of a Battery Pack Displaying Charge Information on the Screen Displaying Charge Information on a Battery Pack Managing Low-Battery Conditions Identifying Low-Battery ConditionsBattery Pack Quick Check Indications Critical Low-Battery Condition Resolving Low-Battery ConditionsWhen No Power Source Is Available Calibrating a Battery PackConserving Power as You Work Conserving Battery PowerWhen to Calibrate How to CalibrateSelecting Power Conservation Settings Storing a Battery Pack Disposing of a Used Battery PackBattery Storage Temperature Ranges Finding More Power Information Caring for Drives Hard DriveHard Drive Activity Light Hard drive in the hard drive bay is the primary hard drive Replacing the Primary Hard DrivePull the drive out of the bay Close the front bezel of the hard drive Replacing the hard drive retaining screw Using Audio Features Audio and VideoAudio Components Adjusting the Volume Using Video Features Using the Microphone Input JackUsing the Audio Line-Out Jack Connecting a Device to the S-Video Out Jack Changing the Video Mode Communication Devices Connecting a Modem CableUsing the RJ-11 Cable Using a Country-Specific Adapter Cable Connecting a Network Cable Linking to an Infrared Device Setting Up an Infrared Transmission Using Standby with Infrared Using Wireless LAN Using BluetoothExternal Devices Using a USB Device Connecting a Monitor or ProjectorEnabling USB Legacy Support Using a USB DeviceUsing an Optional External MultiBay Connecting an Optional Cable Lock Using PC Cards Hardware UpgradesRemoving a PC Card Inserting a PC CardTo remove a PC Card Stop the PC Card Inserting an SD Card Using SD CardsRemoving an SD Card Adding a Memory Expansion Module Adding and Upgrading Memory ModulesRemove the memory expansion slot cover Inserting a memory expansion module Upgrading the Memory Module in the Primary Memory Slot Removing the keyboard screws Remove the keyboard Removing the existing memory module Inserting the new memory module Windows 2000 or Windows XP, press Fn+esc Increasing RAMSpecifications Operating EnvironmentFactor Metric Factor Specification Rated Input PowerModem Specifications Input Power RatingIndex Index-2 Index-3 Index-4 Modem and Networking guide Index-6 USB Wireless LAN

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.