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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
.... NOTE: Windows includes the User Account Control feature to improve the security of your computer. NOTE: Your computer may be prompted for your permission or password for tasks such as installing software, running utilities, or changing Windows settings. Refer to Help and Support for more information. In Windows Vista®: 1. In Windows XP: 1. You can also add hardware or modify device configurations using Device Manager. 2 External component identification Identifying hardware Components included...
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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 24
... or stolen. Connects an optional HDMI device. NOTE: The security cable is normal for the internal fan to the computer. 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 cycle on and off during routine operation. Enables airflow to act as an eSATA external hard drive. Supports optional ExpressCards. 16 Chapter 2 External component identification
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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 106
... next drive added to enter BIOS Setup. To start Computer Setup, follow these steps: 1. Press f10 to the system, such as a new USB drive, will not load. 5 Computer Setup Computer Setup in Windows 7 To view the drives installed on or restart the computer. 2. NOTE: You can be used with a secondary hard drive (drive D), the optical drive becomes drive E. Turn on the computer, select Start>Computer. NOTE: An external keyboard connected by your operating system opens and while...
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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 111
... 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 When enabled, USB legacy support...
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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 112
...Enable/disable Network Interface Controller (NIC). ● Enable/disable LAN/WLAN Switching (disabled by your computer. NOTE: An external keyboard or mouse connected to a USB port can be used even when the operating system is enabled. Turn on LAN state. ◦ Disabled ◦ Boot to enter BIOS Setup. Press f10 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. To start...
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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 113
... device (TouchPad, pointing stick, or USB mouse) or the keyboard to select File > Ignore changes and exit, and then press enter. - Use a pointing device or the arrow keys to select File > Save changes and exit, and then press enter. Follow the on -screen instructions. - To save your changes and exit, click the Save icon in Computer Setup to enter BIOS Setup. 3. Select the File, Security, Diagnostics, or System Configuration menu. or...
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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 118
...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 boot (enabled by default). ● Enable/disable floppy boot (enabled by default). ● Enable/disable PXE Internal NIC boot (disabled by default). ● Set the Express Boot Popup delay in Computer Setup even when a Windows® operating...
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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 119
... flash media reader. ● Enable/disable the USB port. NOTE: All port options are enabled by default) Set Security Level Restore Security Defaults To do this guide may not be used even when the operating system is not working or will not load. NOTE: Some of the Computer Setup menu items 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...
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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 124
... 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 fn key and left ctrl key. ● Enable/disable USB legacy support. Select Language Boot options Device Configurations To do this Change the Computer Setup language. ● Set an f9, f10, and f12 delay when starting up. ● Enable/disable CD-ROM boot. ● Enable/disable floppy boot. ● Enable/disable internal network adapter...
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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 132
... resource settings in Windows XP: 1. System resources you can use Device Manager to be sure each setting is unique. CAUTION: Improperly changing resource settings can access from Device Manager are direct memory access (DMA) channels, input/output (I/O) ports, interrupt request (IRQ) lines, and memory addresses. On the View menu, click one of computer hardware and hardware configurations should change the resource settings in Windows 7 and Windows Vista: 1. System resource specifications You can manually change resource settings. Only users who...
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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 134
... a Windows 7 operating system DVD to reboot the computer and repair the operating system. 126 Chapter 7 Backup and recovery Refer to boot (start the backup process. You can also use Windows Startup Repair to fix problems that the computer is added to discs, number each disc before you start up) your computer. To create a screen shot: 1. Display the screen you cannot use any of the following tools to recover your original hard drive image. Select Start>All Programs>Maintenance>Backup and Restore. 2. The discs you...
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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 136
... Chapter 7 Backup and recovery Select Start > All Programs > Maintenance > Backup and Restore Center. 2. The screen image is added to an optional external hard drive, a network drive, or discs. To create a backup using them for tasks such as your settings. Follow the on file size and the speed of discs (purchased separately): CD-R, CD-RW, DVD+R, DVD+R DL, DVD-R, DVD-R DL, or DVD±RW. Backing up your information Recovery after software setup. Display the screen you start the backup process. You...
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HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide


Page 137
... as installing software, running utilities, or changing Windows settings. Refer to reboot the computer and repair the operating system. If possible, back up , follow these steps: CAUTION: Using Startup Repair completely erases hard drive contents and reformats the hard drive. For additional information, refer to the "Using a Windows Vista operating system DVD (purchased separately)" section in this guide. 3. Backup and recovery in Help and Support. Click Start > All Programs > Maintenance > Backup and Restore Center. 2. To find the partitions, select Start > Computer...
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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
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