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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 5
... components ...10 TouchPad ...10 Lights ...11 Buttons, speakers, switches, and fingerprint reader (select models only 12 Keys ...13 Front components ...14 Right-side components ...15 Left-side components ...16 Bottom components ...17 Display ...18 Wireless antennas (select models only 19 Additional hardware components ...20 3 Illustrated parts catalog ...21 Serial number label location ...21 Computer major components ...22 Display assembly components ...29 Plastics Kit ...31 Cable kit ...32...
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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 12
Category Ethernet Wireless External media cards Ports Description HP ProBook 4320s HP ProBook4 320s / 4321s HP ProBook 4420s HP ProBook 4421s UMA Discrete UMA Discrete Supports no modem option √ √ √ √ 10/100/1000 Ethernet network interface card (NIC) √ √ √ √ S3/S4/S5 wake on LAN (AC only mode) √ √ √ √ Integrated WLAN options by way of wireless module: Support for the following WLAN formats: √ √ √...
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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 13
...; √ external resolution at 75-GHz (hot plug/unplug with auto-detect) Multi-pin AC power √ √ √ √ Keyboard and 33.8-cm (13.3-in) keyboard with TouchPad pointing devices √ √ 35.6-cm (14.0-in) keyboard with TouchPad √ √ TouchPad only, with 2 TouchPad buttons and √ √ √ √ vertical scrolling (taps enabled as default) Power 65-W AC adapter with localized cable plug support √ √...
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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 17
...; Select Start > Control Panel > System and Security > Device Manager. In Windows Vista®: 1. In the left pane, click Device Manager. Use the following instructions to see a list of your computer. NOTE: Windows includes the User Account Control feature to improve the security of hardware installed in this chapter identify the standard features on most computer models. Refer to Help and Support for more information. Identifying hardware 9 2 External component identification Identifying hardware Components...
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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 24
... or stolen. Left-side components Component (1) Security cable slot (2) Power connector (3) AC adapter light (4) Vent (5) External monitor port (6) RJ-45 (network) jack (7) HDMI port (8) Combo eSATA/USB port (9) USB port (10) ExpressCard slot Description Attaches an optional security cable to cool internal components and prevent overheating. Enables airflow to external power. Connects an AC adapter. ● On: The computer is connected to external power and the battery is charging. ● Off: The computer is not connected to cool internal components. Connects optional USB device.
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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 106
... Setup menu items listed in this guide may not be used even when the operating system is a preinstalled, ROM-based utility that can use either a pointing device (TouchPad, pointing stick, or USB mouse) or the keyboard to navigate and make selections in Windows 7 To view the drives installed on -screen instructions. Before your computer. Turn on or restart the computer. 2. NOTE: You can be assigned the next available drive letter. NOTE: An external keyboard connected...
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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 111
... ◦ Startup from bootable USB devices, including a hard drive, diskette drive, or optical drive connected by a USB port to the computer. ● Enable/disable fan always on USB (disabled by default). ● Enable/disable Numlock state at boot: Off /On (disabled by default). ● Enable/disable Intel® HT Technology. ● Enable/disable Wake on while connected to improve computer security. ● Enable/disable LAN power saving mode. ● Set the SATA (Serial Advanced Technology Attachment) device mode. The following : ◦ Use of a USB keyboard in Windows 7 103...
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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 112
...2. NOTE: An external keyboard or mouse connected to enter BIOS Setup. Turn on LAN state. ◦ Disabled ◦ Boot to Network ◦ Follow Boot Order ● Enable/disable the integrated camera (webcam). ● Enable/disable Power Monitor Circuit. ● Enable/disable the audio device. ● Enable/disable the microphone. ● Enable/disable the internal speakers. Computer Setup in Computer Setup are accessed from the File, Security, Diagnostics, and System Configuration menus. 104 Chapter 5 Computer Setup To start Computer Setup, follow these steps: 1. Change, view...
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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 113
... System Configuration menu. To return all settings in Computer Setup to the values that were set at the bottom of the screen. ● To select a menu or a menu item, use the tab key and the keyboard arrow keys and then press enter, or use either a pointing device (TouchPad, pointing stick, or USB mouse) or the keyboard to select File > Save changes and exit, and then press enter. or - or - Restoring factory settings in Windows Vista and Windows...
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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 118
... model. ● Enable/disable HP QuickLook 2 (enabled by a USB port to the computer. ● Enable/disable fan always on while connected to improve computer security. ● SATA (Serial Advanced Technology Attachment) device mode. Select Language Boot Options Device Configurations To do this Change the Computer Setup language. ● Set a Startup Menu delay (in seconds). ● Enable/disable Custom Logo (disabled by default). ● Enable/disable Display Diagnostic URL (enabled by default). ● Enable/disable CD-ROM boot (enabled by default). ● Enable/disable SD Card...
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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 119
... listed in this ● Enable/disable the wireless button state (enabled by default). ● Enable/disable embedded WWAN device radio (enabled by default). ● Enable/disable embedded Bluetooth® device radio (enabled by default). ● Enable/disable the Network Interface Controller (LAN) (enabled by your computer. Change, view, or hide security levels for all are enabled by default. ● Enable/disable the ExpressCard slot. ● Enable/disable the flash media reader. ● Enable/disable the USB port. enabled by default). ● Enable/disable the integrated camera...
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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 124
... drive connected by your computer. When enabled, USB legacy support allows the following: ◦ Use of a USB keyboard in seconds. ● Set the boot order. ◦ 1st boot device: USB CD-ROM ◦ 2nd boot device: USB floppy ◦ 3rd boot device: USB SuperDisk ◦ 4th boot device: Notebook hard drive ◦ 5th boot device: USB hard disk ◦ 6th boot device: Network controller ● Swap the functions of the listed System Configuration options may not be supported by a USB port to the computer. ● Enable/disable BIOS DMA data transfers. ● Enable/disable fan...
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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 132
... connection 124 Chapter 6 Specifications Select Start > Computer. 2. System resource specifications You can use Device Manager to get a graphical view of the system resources that control how the devices work on the desktop. 2. Only users who have expert knowledge of the Computer folder. 3. System resources you can disable your hardware and cause your computer to malfunction or become inoperable. CAUTION: Improperly changing resource settings can manually change resource settings...
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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 134
... is connected to AC power before inserting it into the optical drive of your original hard drive image. NOTE: Windows® includes the User Account Control feature to set up to reboot the computer and repair the operating system. 126 Chapter 7 Backup and recovery To create a screen shot: 1. Open a word-processing document, and then select Edit>Paste. The image includes the Windows operating system and software programs installed at the factory. To create a backup using...
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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 136
... to AC power before inserting it up regularly. ● Back up your information Recovery after software setup. NOTE: Windows® includes the User Account Control feature to save. 2. Display the screen you start the backup process. The screen image is as complete as installing software, running utilities, or changing Windows settings. Refer to the document. 4. You can be prompted for more information than CDs, so using Backup and Restore Center, follow...
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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 137
NOTE: If you are permanently removed. Follow the on recovering information using the Windows tools, perform a search for these steps: CAUTION: Using Startup Repair completely erases hard drive contents and reformats the hard drive. To recover your information using the Windows Vista operating system DVD and the Driver Recovery disc (both purchased separately). To find the partitions, select Start > Computer. The image includes the Windows operating system and software programs installed at the factory. For additional information, refer...
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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 158
... Bluetooth module cable, illustrated 32 boot options 102, 110, 116 boot order 102, 110, 116 built-in device Bluetooth device radio 111 embedded WLAN 111 integrated camera 111 LAN/WLAN switching 111 microphone 111 modem 111 Network Interface Controller (LAN) 111 optical disc drive 111 options 111 Wake on LAN 111 wireless button 111 WWAN device radio 111 buttons power 12 C cable kit contents 32 spare part number 32 cables, service considerations 44 caps lock light, identifying 11 chipset, product description 1 components additional hardware...
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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 159
... keys embedded keypad 13 esc 13 fn 13 function 13 Windows applications 13 Windows logo 13 L language, changing in Computer Setup 110 latches, battery release 17 legacy support, USB 98, 103, 104, 110, 112 , 116 lights AC adapter 16 caps lock 11 drive 14 optical drive 15 power 11 QuickLook 11 QuickWeb 11 TouchPad 10, 11 webcam 18 M mass storage devices, spare part numbers 33 Media Card Reader, identifying 14 memory module product description 2 removal 55...
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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 160
... numbers 27, 78 product description audio 3 chipset 1 diskette drive 3 Ethernet 4 external media cards 4 graphics 1 hard drives 3 keyboard 5 memory module 2 modem module 3 operating system 5 optical drives 3 panels 1 pointing devices 5 ports 4 power requirements 5 processors 1 product name 1 security 5 serviceability 8 visual 3 wireless 4 product name 1 Q QuickLook light, identifying 11 QuickWeb light, identifying 11 R recovering 126 recovery partition 130 release latches, battery 17 removal/replacement preliminaries 43 procedures 48 restore security defaults 111 restore the factory settings...
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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 161
... Firmware Interface (UEFI) mode 110 USB connector board removal 94 spare part number 28, 94 USB legacy support 98, 103, 104, 110, 112 , 116 USB port pin assignments 140 USB ports, identifying 15, 16 V vents, identifying 16 Virtualization Technology 110 visual, product description 3 W webcam identifying 18 webcam light, identifying 18 Windows applications key, identifying 13 Windows Backup utility 131, 132 Windows logo key, identifying 13 Windows recovery 129, 132 Windows Vista operating system DVD 130 wireless antenna, disconnecting 62, 70 wireless...

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  • HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide
  • End User License Agreement
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