HP EliteBook 755 G3 Maintenance And Service Manual
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HP EliteBook 755 G3 Maintenance And Service Manual

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HP EliteBook 755 G3 Notebook PC
HP EliteBook 745 G3 Notebook PC
Maintenance and Service Guide

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Summary of Contents for HP EliteBook 755 G3

  • Page 1 HP EliteBook 755 G3 Notebook PC HP EliteBook 745 G3 Notebook PC Maintenance and Service Guide...
  • Page 2 The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty.
  • Page 3 Important Notice about Customer Self-Repair Parts CAUTION: Your computer includes Customer Self-Repair parts and parts that should only be accessed by an authorized service provider. See Chapter 5, "Removal and replacement procedures for Customer Self-Repair parts," for details. Accessing parts described in Chapter 6, "Removal and replacement procedures for Authorized Service Provider only parts,"...
  • Page 4 Important Notice about Customer Self-Repair Parts...
  • Page 5 Safety warning notice WARNING! To reduce the possibility of heat-related injuries or of overheating the device, do not place the device directly on your lap or obstruct the device air vents. Use the device only on a hard, flat surface. Do not allow another hard surface, such as an adjoining optional printer, or a soft surface, such as pillows or rugs or clothing, to block airflow.
  • Page 6 Safety warning notice...

  • Page 7: Table Of Contents

    Table of contents 1 Product description ............................1 2 External component identification ........................6 Right ..................................6 Left ..................................8 Display ..................................9 Top ..................................10 TouchPad ............................10 Lights ..............................11 Buttons, speakers, and fingerprint reader ..................13 Keys ..............................15 Using the hot keys ..........................
  • Page 8 Speaker assembly ..........................74 Display assembly ..........................75 Top cover ............................80 7 Computer Setup (BIOS), TPM, and HP Sure Start in Windows 10 ................ 81 Using Computer Setup ............................81 Starting Computer Setup ........................81 Navigating and selecting in Computer Setup ................... 81 Restoring factory settings in Computer Setup .................
  • Page 9 8 Computer Setup (BIOS), TPM, and HP Sure Start in Windows 8 ................. 86 Using Computer Setup ............................86 Starting Computer Setup ........................86 Navigating and selecting in Computer Setup ................... 86 Restoring factory settings in Computer Setup ................. 87 Updating the BIOS ..........................
  • Page 10 13 Backing up and recovering Windows 7 ....................... 108 Creating recovery media and backups ......................108 Guidelines ............................108 Creating recovery media with HP Recovery Disc Creator ............... 108 Creating recovery media ....................109 Backing up your information ......................109 Performing a system recovery ..........................

  • Page 11: Product Description

    Product description Category Description Product Name HP 755 G3 Notebook PC HP 745 G3 Notebook PC Processors ® Carrizo processors: ● A12 Pro-8800B 2.1 GHz (max turbo frequency 3.4 GHz), DDR3-2133, 2 MB L2 Cache, 15 W ● A10 Pro-8700B 1.8 GHz (max turbo frequency 3.2 GHz), DDR3-2133, 2 MB L2 Cache, 15 W A8 Pro-8600B 1.6 GHz (max turbo frequency 3 GHz), DDR3-2133, 2 MB L2 Cache, 15 W...
  • Page 12 Category Description ● 12288 MB (8192 MB + 4096 MB) (not available in Brazil on the 35.6-cm) 8192 MB (8192 MB×1 or 4096 MB×2) ● ● 6144 MB (4096 MB + 2048 MB×2) (not available in Brazil on the 35.6-cm) ●...
  • Page 13 ● Broadcom 43228 dual-band 802.11abgn 2x2 Wi-Fi Adapter + BT 4.0 combo adapter (Indonesia only) ● Intel Dual Band Wireless-AC 7265 802.11ac non-vPro 2x2 Wi-Fi Adapter + BT 4.1 combo adapter for HP 745 (Brazil only) ● Intel 7265NV 802.11ac 2x2 non-vPro Wi-Fi Adapter + BT 4.1 combo adapter (not available in Indonesia)
  • Page 14 Gestures enabled by default: two-finger scrolling, two-finger pinch-zoom Taps enabled by default On/off button Mylar (39.6-cm) Glass (35.6-cm) Power requirements 65 W HP Smart AC adapter 45 W HP Smart AC adapter 45 W, 2-prong AC adapter Security Security lock Fingerprint reader Supports Trusted Platform Module (TPM) 1.2 or 2.0 (Infineon, soldered down)
  • Page 15 Category Description ● Windows 10 Restore Media–OS-DVD ● Windows 7 Professional 64-bit Restore Media–DR/SR-DVD (39.5-cm only) ● Windows 8.1 Restore Media–OS-DVD Windows 8.1 Professional 64-bit ● Windows 8.1 64-bit ● ● Windows 8.1 Country Specific 64-bit ● Windows 8.1 Emerging Market 64-bit ●...

  • Page 16: External Component Identification

    Safety, and Environmental Notices. To access this guide: Windows 10: Select the Start button, select All apps, select HP Help and Support, and then select HP Documentation. Windows 8 or Windows 7: Select the HP Support Assistant app on the Start screen, select My computer, and then select User guides.
  • Page 17 Component Description RJ-45 (network) jack/status lights Connects a network cable. Green (left): The network is connected. ● ● Amber (right): Activity is occurring on the network. Docking connector Connects an optional docking device. SIM card slot Supports a wireless subscriber identity module (SIM) card. Power connector Connects an AC adapter.

  • Page 18: Left

    Left Component Description Security cable slot Attaches an optional security cable to the computer. NOTE: The security cable is designed to act as a deterrent, but it may not prevent the computer from being mishandled or stolen. Vents (2) Enable airflow to cool internal components. NOTE: The computer fan starts up automatically to cool internal components and prevent overheating.

  • Page 19: Display

    Select the Start button, select All apps, select HP Help and Support, and then select HP Documentation. Windows 8 or Windows 7: Select the HP Support Assistant app on the Start screen, select My computer, and then select User guides. Display...

  • Page 20: Top

    TouchPad Component Description Pointing stick (select products only) Moves the pointer and selects or activates items on the screen. Left pointing stick button (select products only) Functions like the left button on an external mouse. TouchPad on/off button/TouchPad light Turns the TouchPad on and off. ●...

  • Page 21: Lights

    Lights NOTE: Refer to the illustration that most closely matches your computer. Component Description Power light ● On: The computer is on. ● Blinking: The computer is in the Sleep state, a power-saving state. The computer shuts off power to the display and other unneeded components.
  • Page 22 Component Description ● Off: The TouchPad is on. Component Description Power light ● On: The computer is on. ● Blinking: The computer is in the Sleep state, a power-saving state. The computer shuts off power to the display and other unneeded components. ●...

  • Page 23: Buttons, Speakers, And Fingerprint Reader

    Component Description Caps lock light On: Caps lock is on, which switches the key input to all capital letters. TouchPad light On: The TouchPad is off. ● ● Off: The TouchPad is on. Buttons, speakers, and fingerprint reader Component Description Power button ●...
  • Page 24 Component Description ▲ Type power in the taskbar search box, and then select Power and sleep settings. ‒ or – Right-click the Start button, and then select Power Options. Speakers Produce sound. Wireless button Turns the wireless feature on or off but does not establish a wireless connection.

  • Page 25: Keys

    Keys NOTE: Refer to the illustration that most closely matches your computer. Component Description Displays system information when pressed in combination with key. Executes frequently used system functions when pressed in combination with a function key, the num lock key, or the key.

  • Page 26: Using The Hot Keys

    Component Description Displays system information when pressed in combination with key. Executes frequently used system functions when pressed in combination with a function key, the num lock key, or the key. Using the hot keys on page 16 Windows key Opens the Start menu.
  • Page 27 Press fn+function key Description Most external monitors receive video information on the computer using the external VGA video standard. fn+f4 hot key can also alternate images among other devices that are receiving video information on the computer. Decreases the screen brightness incrementally as long as you hold down the key. Increases the screen brightness incrementally as long as you hold down the key.

  • Page 28: Bottom

    Bottom Component Description Docking connector Connects an optional docking device. Vents (2) Enable airflow to cool internal components. NOTE: The computer fan starts up automatically to cool internal components and prevent overheating. It is normal for the internal fan to cycle on and off during routine operation.

  • Page 29: Front

    Off: The battery is not charging. Drive light Blinking white: The hard drive is being accessed. ● Amber: HP 3D DriveGuard has temporarily parked the ● hard drive. Locating system information Important system information is located on the bottom edge of the tablet or on the keyboard base. You may...
  • Page 30 IMPORTANT: Check the following locations for the labels described in this section: the bottom of the computer, inside the battery bay, under the service door, or on the back of the display. ● Service label—Provides important information to identify your computer. When contacting support, you will probably be asked for the serial number, and possibly for the product number or the model number.

  • Page 31: Illustrated Parts Catalog

    Computer major components NOTE: HP continually improves and changes product parts. For complete and current information on supported parts for your computer, go to http://partsurfer.hp.com, select your country or region, and then follow the on-screen instructions. NOTE: Details about your computer, including model, serial number, product key, and length of warranty, are on the service tag at the bottom of your computer.
  • Page 32 Touchpad button board w/NFC antenna 821172-001 Touchpad button board for HP 755 836620-001 Touchpad button board w/NFC antenna for HP 755 837851-001 Hard drive (does not include hard drive connector cable or hard drive rubber bracket): 1 TB, 5400 rpm, 7 mm...
  • Page 33 Intel 7265NV 802.11ac 2x2 non-vPro Wi-Fi Adapter + BT 4.1 combo adapter (not available 793840-001 in Indonesia) (17) WWAN module HP lt4120 LTE/EVDO/HSPA+ SnapdragonT X5 LTE Mobile Broadband Module 800870-001 HP hs31110 HSPA + Intel Mobile Broadband Module 822828-001 (18)

  • Page 34: Display Assembly Subcomponents

    Display assembly subcomponents Item Component Spare part number Bezel For HP 745 821197-001 For HP 755 821158-001 Left hinge cover (a) and right hinge cover (b) (spared with hinges) Left hinge (a) and right hinge (b) For 14” computers 821166-001 For 15”...

  • Page 35: Plastics Kit

    HD for HP 755 824515-001 FHD for HP 755 824516-001 (10) Back cover (includes antennas) For HP 745 821161-001 For HP 755 with HD raw panel 821180-001 Plastics kit Item Component Spare part number Plastics kit 821175-001 Fingerprint reader blank...

  • Page 36: Mass Storage Devices

    Mass storage devices Item Component Spare part number Hard drive 1 TB, 5400 rpm, 7 mm 762990-001 500 GB, 7200 rpm, 7 mm, FIPS 820572-001 500 GB, 7200 rpm, 7 mm, Opal-2 820573-001 500 GB, 7200 rpm, 7 mm 703267-001 500 GB, 5400 rpm, 7 mm, hybrid, 8 GB cache 732000-001 Hard drive hardware kit...

  • Page 37: Miscellaneous Parts

    45 W HP Smart AC adapter, nPFC, slim 741727-001 45 W HP Smart AC adapter, nPFC, 2P 742436-001 65 W HP Smart AC adapter, nPFC, emerging markets 714657-001 HP Mobile Connect 714749-001 HP DisplayPort to HDMI cable for HP 745...
  • Page 38 Component Spare part number For use in Thailand 490371-201 For use in the United Kingdom 490371-031 Power cord (3-pin, black, 1 m): For use in Argentina 755530-D01 For use in Australia 755530-011 For use in Brazil 755530-202 For use in Denmark 755530-081 For use in Europe 755530-021...

  • Page 39: Removal And Replacement Procedures Preliminary Requirements

    Removal and replacement procedures preliminary requirements Tools required You will need the following tools to complete the removal and replacement procedures: Phillips P0 screwdriver ● Service considerations The following sections include some of the considerations that you must keep in mind during disassembly and assembly procedures.

  • Page 40: Cables And Connectors

    Cables and connectors CAUTION: When servicing the computer, be sure that cables are placed in their proper locations during the reassembly process. Improper cable placement can damage the computer. Cables must be handled with extreme care to avoid damage. Apply only the tension required to unseat or seat the cables during removal and insertion.

  • Page 41: Grounding Guidelines

    Grounding guidelines Electrostatic discharge damage Electronic components are sensitive to electrostatic discharge (ESD). Circuitry design and structure determine the degree of sensitivity. Networks built into many integrated circuits provide some protection, but in many cases, ESD contains enough power to alter device parameters or melt silicon junctions. A discharge of static electricity from a finger or other conductor can destroy static-sensitive devices or microcircuitry.

  • Page 42: Packaging And Transporting Guidelines

    Packaging and transporting guidelines Follow these grounding guidelines when packaging and transporting equipment: To avoid hand contact, transport products in static-safe tubes, bags, or boxes. ● ● Protect ESD-sensitive parts and assemblies with conductive or approved containers or packaging. ● Keep ESD-sensitive parts in their containers until the parts arrive at static-free workstations.

  • Page 43: Equipment Guidelines

    Equipment guidelines Grounding equipment must include either a wrist strap or a foot strap at a grounded workstation. When seated, wear a wrist strap connected to a grounded system. Wrist straps are flexible straps with a ● minimum of one megohm ±10% resistance in the ground cords. To provide proper ground, wear a strap snugly against the skin at all times.

  • Page 44: Removal And Replacement Procedures For Customer Self-Repair Parts

    NOTE: HP continually improves and changes product parts. For complete and current information on supported parts for your computer, go to http://partsurfer.hp.com, select your country or region, and then follow the on-screen instructions. There are as many as 22 screws that must be removed, replaced, and/or loosened when servicing Customer Self-Repair parts.
  • Page 45 Remove the 10 rubber plugs (1) and the SD card blank (2) from the bottom cover. NOTE: The 15” computer has one more rubber plug. Remove the screws that secure the bottom cover to the computer. 14” computers Remove the 10 Phillips PM2.5x5.0 screws in the following order. Component replacement procedures...
  • Page 46 After you remove the PM2.5×5.0 screws (1), remove the 1 PM2.0×7.0 screw (2). – or – 15” computers Remove the 11 Phillips PM2.5x5.0 screws in the following order. Chapter 5 Removal and replacement procedures for Customer Self-Repair parts...
  • Page 47 After you remove the PM2.5×5.0 screws (1), remove the 1 PM2.0×7.0 screw (2). Pry up on the top (near the display hinge) of the bottom cover to disengage it from the computer. Reverse the removal procedures to install the bottom cover. NOTE: There are five different sizes of rubber plugs.
  • Page 48 The rubber-plug locations for 14” computers are as follows. Chapter 5 Removal and replacement procedures for Customer Self-Repair parts...

  • Page 49: Battery

    Battery Description Spare part number 3-cell, 46 WHr, 4.08 Ah Li-ion battery 800513-001 Before removing the battery, follow these steps: Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. Disconnect all external devices connected to the computer.

  • Page 50: Hard Drive

    Hard drive Description Spare part number 1 TB, 5400 rpm, 7 mm 762990-001 500 GB, 7200 rpm, 7 mm, FIPS 820572-001 500 GB, 7200 rpm, 7 mm, Opal-2 820573-001 500 GB, 7200 rpm, 7 mm 703267-001 500 GB, 5400 rpm, 7 mm, hybrid, 8 GB cache 732000-001 Before removing the hard drive, follow these steps: Shut down the computer.
  • Page 51 To remove the hard drive cover and bracket from the hard drive, lift the Mylar cover up off the drive, remove the 4 Phillips PM3.0×3.0 screws (1) that secure the bracket to the drive, and then lift the bracket up and off the hard drive (2). Reverse this procedure to install a hard drive.

  • Page 52: Ssd

    Description Spare part number Solid-state drive 512 GB, PCIe 3x4 823959-001 256 GB, PCIe 3x4 823958-001 256 GB, SATA-3 self-encrypting drive Opal-2 MLC 823957-001 256 GB, SATA-3 TLC 823956-001 180 GB, SATA-3, self-encrypting drive Opal-2 MLC 823955-001 180 GB, SATA-3 MLC 823954-001 128 GB, SATA-3 TLC 823953-001...
  • Page 53 Reverse this procedure to reassemble and install the mSATA drive. Component replacement procedures...

  • Page 54: Memory Modules

    Failure to update the computer to the latest BIOS prior to installing new memory may result in various system problems. To update BIOS: Navigate to www.hp.com. Click Support & Drivers > click Drivers & Software. In the Enter a product name/number box, type the computer model information, and then click Search.
  • Page 55 Remove the memory module (2) by pulling the module away from the slot at an angle. NOTE: Memory modules are designed with a notch to prevent incorrect insertion into the memory module slot. NOTE: The computer uses two memory sockets. The socket labeled 2 houses the expansion memory module and the socket labeled 1 houses the primary memory module.

  • Page 56: Wlan/Bluetooth Combo Card

    Indonesia) Broadcom 43228 dual-band 802.11abgn 2x2 Wi-Fi Adapter + BT 4.0 combo adapter (Indonesia only) 812132-001 Intel Dual Band Wireless-AC 7265 802.11ac non-vPro 2x2 Wi-Fi Adapter + BT 4.1 combo adapter for HP 810809-201 745 (Brazil only) Intel 7265NV 802.11ac 2x2 non-vPro Wi-Fi Adapter + BT 4.1 combo adapter (not available in Indonesia)
  • Page 57 Remove the WLAN module by pulling the module away from the slot at an angle (3). NOTE: WLAN modules are designed with a notch to prevent incorrect insertion. NOTE: If the WLAN antennas are not connected to the terminals on the WLAN module, the protective sleeves must be installed on the antenna connectors, as shown in the following illustration.

  • Page 58: Wwan Module

    The WLAN module and WWAN module are not interchangeable. The WWAN module is available on select models only. Description Spare part number HP lt4120 LTE/EVDO/HSPA+ SnapdragonT X5 LTE Mobile Broadband Module 800870-001 HP hs31110 HSPA + Intel Mobile Broadband Module 822828-001 Before removing the WWAN module, follow these steps: Shut down the computer.
  • Page 59 Remove the WWAN module (3) by pulling the module away from the slot at an angle. NOTE: WWAN modules are designed with a notch to prevent incorrect insertion. NOTE: If the WWAN antennas are not connected to the terminals on the WWAN module, the protective sleeves must be installed on the antenna connectors, as shown in the following illustration.

  • Page 60: Keyboard

    In this section, the first table provides the main spare part number for the keyboards. The second table provides the country codes. Description Spare part number Keyboard, no backlight for HP 745 836307-xx1 Keyboard, backlit for HP 745 836308-xx1 Keyboard, no backlight for HP 755...
  • Page 61 NOTE: The screws are labeled with a keyboard symbol. – or – On 15” computers, remove the four Phillips PM2.5×5.0 screws that secure the keyboard to the computer (1). Position the computer upright with the front toward you. Open the computer as far as possible. Component replacement procedures...
  • Page 62 Insert a screwdriver or similar thin tool into the hole beside the heat sink/fan assembly, and then press on the back of the keyboard until it disengages from the computer (2). Rotate the top of the keyboard upward, and then lift the keyboard up at an angle to disengage the tabs at the bottom of the keyboard. NOTE: Cables connect the bottom of the keyboard to the system board.

  • Page 63: Removal And Replacement Procedures For Authorized Service Provider Parts

    NOTE: HP continually improves and changes product parts. For complete and current information on supported parts for your computer, go to http://partsurfer.hp.com, select your country or region, and then follow the on-screen instructions. There are as many as 45 screws that must be removed, replaced, and/or loosened when servicing Authorized Service Provider only parts.

  • Page 64: Rtc Battery

    RTC battery Description Spare part number RTC battery 665733-001 Before removing the RTC battery, follow these steps: Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. Disconnect all external devices connected to the computer.

  • Page 65: Internal Base Plate

    Internal base plate Description Spare part number Internal base plate for 14” computers 821164-001 Internal base plate for 15” computers 821186-001 Before removing the internal base plate, follow these steps: Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
  • Page 66 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts...
  • Page 67 On 14” computers, remove 9 Phillips PM2.5x5.0 screws (1), and then remove the base plate from the computer (2). – or – On 15” computers, remove 8 Phillips PM2.5x2.5 screws (3), and then remove the base plate from the computer (4). Reverse this procedure to install the internal base plate.

  • Page 68: Heat Sink/Fan Assembly

    Heat sink/fan assembly NOTE: The heat sink/fan assembly spare part kit includes replacement thermal material. Description Spare part number Heat sink/thermal module with fans for 14” computers 821163-001 Heat sink/thermal module with fans for 15” computers with UMA graphics 821184-001 Heat sink/thermal module with fans for 15”...
  • Page 69 NOTE: The thermal material must be thoroughly cleaned from the surfaces of the heat sink and the system board components each time the heat sink is removed. Replacement thermal material is included with the heat sink, processor, and system board spare part kits. –...
  • Page 70 NOTE: The thermal material must be thoroughly cleaned from the surfaces of the heat sink and the system board components each time the heat sink is removed. Replacement thermal material is included with the heat sink, processor, and system board spare part kits. Reverse this procedure to install the heat sink/fan assembly.

  • Page 71: Fingerprint Reader Assembly

    Fingerprint reader assembly Description Spare part number Fingerprint reader assembly (includes cable, bracket, and bezel) 821165-001 Before removing the fingerprint reader assembly, follow these steps: Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.

  • Page 72: Power Button Board

    Remove the fingerprint reader board and cable assembly from the top cover (4). Reverse this procedure to install the fingerprint reader assembly. Power button board Description Spare part number Power button board assembly for 14” computers 821169-001 Power button board assembly for 15” computers 821190-001 Before removing the power button board, follow these steps: Shut down the computer.
  • Page 73 Disconnect the cable from the system board (1). Remove the Phillips PM2.5×2.5 screw (2) that secures the power button board to the top cover. Push the lever left (3). Slide the power button board left from beneath the hinge (4). Remove the power button board from a 15”...
  • Page 74 Push the lever left, and then slide the power button board left (5). Reverse this procedure to install the power button board. Chapter 6 Removal and replacement procedures for Authorized Service Provider parts...

  • Page 75: Touchpad Button Board

    821172-001 Touchpad button board for HP 755 836620-001 Touchpad button board w/NFC antenna for HP 755 837851-001 Before removing the touchpad button board, follow these steps: Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
  • Page 76 Lift the top of the touchpad button board up, and then pull it forward to remove it from the slot (5). Reverse this procedure to install the touchpad board. Chapter 6 Removal and replacement procedures for Authorized Service Provider parts...

  • Page 77: Nfc Module

    NFC module Description Spare part number NFC (Near Field Communication) module 821666-001 Before removing the NFC module, follow these steps: Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. Disconnect the power from the computer by unplugging the power cord from the computer.

  • Page 78: Smart Card Reader Board

    Smart card reader board Description Spare part number Smart card reader board 821167-001 Before removing the card reader board, follow these steps: Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
  • Page 79 Lever the plastic tab left (3), and then slide the smart card reader board left to remove it from the top cover (4). Reverse this procedure to install the card reader board. Component replacement procedures...

  • Page 80: Usb/Audio Board

    USB/audio board Description Spare part number USB/audio board for HP 755 836619-001 Before removing the USB/audio board, follow these steps: Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.

  • Page 81: System Board

    System board NOTE: All system board spare part kits include replacement thermal material. All system boards use the following part numbers: xxxxxx-001: Non-Windows operating systems xxxxxx-601: Windows operating system Description Spare part number AMD A12 Pro-8800B; UMA graphics memory 827576-xxx AMD A10 Pro-8700B;...
  • Page 82 Disconnect the following cables from the system board: (1) Speaker cable (2) Display cable (3) Webcam cable (select products only) Chapter 6 Removal and replacement procedures for Authorized Service Provider parts...
  • Page 83 On a 14” computer, remove the 2 Phillips PM2.5×5.0 screws (1) that secure the system board to the computer. – or – On a 15” computer, remove the 1 Phillips PM2.5×5.0 screws (1) that secures the system board to the computer.

  • Page 84: Speaker Assembly

    Speaker assembly Description Spare part number Speaker assembly (includes cable) 821170-001 Before removing the speaker assembly, follow these steps: Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. Disconnect the power from the computer by unplugging the power cord from the computer.

  • Page 85: Display Assembly

    Display assembly Description Spare part number Display panel assembly, touch screen for HP 745 821178-001 Display panel assembly, touch screen for HP 755 821196-001 Before removing the display assembly, follow these steps: Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
  • Page 86 On a 14” computer, remove the 5 Phillips PM2.5×5.0 screws (1) from the display hinges. – or – On a 15” computer, remove the 4 Phillips PM2.5×5.0 screws (1) from the display hinges. Lift the display assembly straight up and remove it (2). Chapter 6 Removal and replacement procedures for Authorized Service Provider parts...
  • Page 87 Remove the display bezel (4). The display bezel is available using spare part number 821158-001 for HP 755 and 821197-001 for HP 745. If it is necessary to replace the webcam or microphone module, gently pull the module away from the double-sided tape on the display enclosure (1), and then disconnect the cable from the module (2).
  • Page 88 (HP 745 only) The raw display panel is available using spare part number 823950-001 for HD panels, 823951-001 for FHD panels, and 823952-001 for QHD panels. (HP 755 only) The raw display panel is available using spare part number 824515-001 for HD panels and 824516-001 for FHD panels.
  • Page 89 Remove the 6 Phillips PM2.5x2.5 screws that secure the hinges to the display enclosure (3), and then remove the display hinges from the display enclosure (4). Display hinges are available in the Display Hinge Kit using spare part number 821166-001 for 14” computers and 821187-001 for 15”...

  • Page 90: Top Cover

    Top cover Description Spare part number Top cover for HP 745 821173-001 Top cover for HP 755 821191-001 Before removing the top cover, follow these steps: Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.

  • Page 91: Computer Setup (Bios), Tpm, And Hp Sure Start In Windows 10

    To start Computer Setup, follow these steps: ▲ Start Computer Setup. ● Computers or tablets with keyboards: ▲ Turn on or restart the computer, and when the HP logo appears, press to enter Computer Setup. Tablets without keyboards: ● ▲...

  • Page 92: Restoring Factory Settings In Computer Setup

    Select Main, select Save Changes and Exit, and then press enter. Your changes go into effect when the computer restarts. NOTE: Your password settings and security settings are not changed when you restore the factory settings. Chapter 7 Computer Setup (BIOS), TPM, and HP Sure Start in Windows 10...

  • Page 93: Updating The Bios

    Do not shut down the computer or initiate Sleep. Do not insert, remove, connect, or disconnect any device, cable, or cord. Type support in the taskbar search box, and then select the HP Support Assistant app. – or – Select the question mark icon in the taskbar.

  • Page 94: Changing The Boot Order Using The F9 Prompt

    For any compliance issues arising from your operation/usage of TPM which violates the above mentioned requirement, you shall bear all the liabilities wholly and solely. HP will not be responsible for any related liabilities.

  • Page 95: Using Hp Sure Start (Select Products Only)

    BIOS to its previously safe state, without user intervention. HP Sure Start is configured and already enabled so that most users can use the HP Sure Start default configuration. The default configuration can be customized by advanced users.

  • Page 96: Computer Setup (Bios), Tpm, And Hp Sure Start In Windows 8

    To start Computer Setup, follow these steps: Start Computer Setup. ▲ ● Computers or tablets with keyboards: ▲ Turn on or restart the computer, and when the HP logo appears, press to enter Computer Setup. ● Tablets without keyboards: ▲...

  • Page 97: Restoring Factory Settings In Computer Setup

    To exit Computer Setup menus, choose one of the following methods: To exit Computer Setup menus without saving your changes: ● Select the Exit icon in the lower-right corner of the screen, and then follow the on-screen instructions. – or – Select Main, select Ignore Changes and Exit, and then press enter.

  • Page 98: Updating The Bios

    Updating the BIOS Updated versions of the BIOS may be available on the HP website. Most BIOS updates on the HP website are packaged in compressed files called SoftPaqs. Some download packages contain a file named Readme.txt, which contains information regarding installing and troubleshooting the file.

  • Page 99: Changing The Boot Order Using The F9 Prompt

    For any compliance issues arising from your operation/usage of TPM which violates the above mentioned requirement, you shall bear all the liabilities wholly and solely. HP will not be responsible for any related liabilities.

  • Page 100: Using Hp Sure Start (Select Products Only)

    BIOS to its previously safe state, without user intervention. HP Sure Start is configured and already enabled so that most users can use the HP Sure Start default configuration. The default configuration can be customized by advanced users.

  • Page 101: Computer Setup (Bios), Tpm, And Hp Sure Start In Windows 7

    To start Computer Setup, follow these steps: ▲ Start Computer Setup. ● Computers or tablets with keyboards: ▲ Turn on or restart the computer, and when the HP logo appears, press to enter Computer Setup. Tablets without keyboards: ● ▲...

  • Page 102: Restoring Factory Settings In Computer Setup

    Select Main, select Save Changes and Exit, and then press enter. Your changes go into effect when the computer restarts. NOTE: Your password settings and security settings are not changed when you restore the factory settings. Chapter 9 Computer Setup (BIOS), TPM, and HP Sure Start in Windows 7...

  • Page 103: Updating The Bios

    Do not shut down the computer or initiate Sleep. Do not insert, remove, connect, or disconnect any device, cable, or cord. Access Help and Support by selecting Start > All Programs > HP Help and Support > HP Support Assistant.

  • Page 104: Changing The Boot Order Using The F9 Prompt

    For any compliance issues arising from your operation/usage of TPM which violates the above mentioned requirement, you shall bear all the liabilities wholly and solely. HP will not be responsible for any related liabilities.

  • Page 105: Using Hp Sure Start (Select Products Only)

    BIOS to its previously safe state, without user intervention. HP Sure Start is configured and already enabled so that most users can use the HP Sure Start default configuration. The default configuration can be customized by advanced users.

  • Page 106: Hp Pc Hardware Diagnostics (Uefi)

    10 HP PC Hardware Diagnostics (UEFI) HP PC Hardware Diagnostics is a Unified Extensible Firmware Interface (UEFI) that allows you to run diagnostic tests to determine whether the computer hardware is functioning properly. The tool runs outside the operating system so that it can isolate hardware failures from issues that are caused by the operating system or other software components.
  • Page 107 Download any version of UEFI for a specific product Go to http://www.hp.com/support, and then select your country. The HP Support page is displayed. Click Drivers & Downloads. In the text box, enter the product name, and then click Go. – or –...

  • Page 108: 11 Backing Up And Recovering Windows 10

    Use HP Recovery Manager to create HP Recovery media after you successfully set up the computer. This ● step creates a backup of the HP Recovery partition on the computer. The backup can be used to reinstall the original operating system in cases where the hard drive is corrupted or has been replaced. For...

  • Page 109: Using Windows Tools

    HP Recovery media can also be used to customize the system or restore the factory image if you replace the hard drive.

  • Page 110: Restore And Recovery

    Creating HP Recovery media (select products only) on page ● If your computer does not allow the creation of HP Recovery media or if the HP Recovery media does not work, you can obtain recovery media for your system from support. See the Worldwide Telephone Numbers booklet included with the computer.

  • Page 111: Using The Hp Recovery Partition (Select Products Only)

    Using HP Recovery media to recover You can use HP Recovery media to recover the original system. This method can be used if your system does not have an HP Recovery partition or if the hard drive is not working properly.

  • Page 112: Changing The Computer Boot Order

    Changing the computer boot order If your computer does not restart in HP Recovery Manager, you can change the computer boot order, which is the order of devices listed in BIOS where the computer looks for startup information. You can change the selection to an optical drive or a USB flash drive.

  • Page 113: Removing The Hp Recovery Partition (Select Products Only)

    Removing the HP Recovery partition (select products only) HP Recovery Manager software allows you to remove the HP Recovery partition to free up hard drive space. IMPORTANT: After you remove the HP Recovery partition, you will not be able to perform System Recovery or create HP recovery media from the HP Recovery partition.

  • Page 114: 12 Backing Up And Recovering Windows 8

    For detailed instructions on various backup and restore options, perform a search for these topics in Windows Help and Support. In case of system instability, HP recommends that you print the recovery procedures and save them for later use. NOTE: Windows includes the User Account Control feature to improve the security of your computer.

  • Page 115: Using F11 Recovery Tools

    The recovery tool reinstalls the operating system and HP programs and drivers that were installed at the factory. Software not installed at the factory must be reinstalled.

  • Page 116: Using Windows Operating System Media (Purchased Separately)

    To order a Windows operating system DVD, contact support. See the Worldwide Telephone Numbers booklet included with the computer. You can also find contact information from the HP website. Go to http://www.hp.com/support, select your country or region, and follow the on-screen instructions.

  • Page 117: Using Windows Refresh Or Windows Reset

    For more information on these features, see Windows Help and Support. Using HP Software Setup HP Software Setup can be used to reinstall drivers or select software that has been corrupted or deleted from the system. From the Start screen, type HP Software Setup.

  • Page 118: 13 Backing Up And Recovering Windows 7

    13 Backing up and recovering Windows 7 Your computer includes HP and Windows tools to help you safeguard your information and retrieve it if you ever need to. These tools will help you return your computer to a proper working state, all with simple steps.

  • Page 119: Creating Recovery Media

    HP Recovery Disc Creator can create two kinds of recovery DVDs: ● Windows 7 operating system DVD—Installs the operating system without additional drivers or applications. Driver Recovery DVD—Installs specific drivers and applications only, in the same way that the HP ●...

  • Page 120: Performing A System Recovery

    To create a backup using Windows Backup and Restore: NOTE: The backup process may take over an hour, depending on file size and the speed of the computer. Select Start > All Programs > Maintenance > Backup and Restore. Follow the on-screen instructions to set up your backup, create a system image (select models only), or create system repair media (select models only).

  • Page 121: Using F11 Recovery Tools (Select Models Only)

    Windows 7 operating system DVD to reboot the computer and repair the operating system. To order a Windows 7 operating system DVD, go to the HP website. For U.S. support, go to http://www.hp.com/support. For worldwide support, go to http://welcome.hp.com/country/us/en/...
  • Page 122 NOTE: This process takes several minutes. If possible, back up all personal files. Restart the computer, and then insert the Windows 7 operating system DVD into the optical drive before the Windows operating system loads. When prompted, press any keyboard key. Follow the on-screen instructions.

  • Page 123: 14 Specifications

    100–240 V, 50–60 Hz. Although the computer can be powered from a standalone DC power source, it should be powered only with an AC adapter or a DC power source supplied and approved by HP for use with this computer. The computer can operate on DC power within the following specifications.

  • Page 124: 15 Power Cord Set Requirements

    15 Power cord set requirements The wide-range input feature of the computer permits it to operate from any line voltage from 100 to 120 volts AC, or from 220 to 240 volts AC. The 3-conductor power cord set included with the computer meets the requirements for use in the country or region where the equipment is purchased.
  • Page 125 Country/region Accredited agency Applicable note number Sweden SEMKO Switzerland Taiwan BSMI The United Kingdom The United States The flexible cord must be Type HO5VV-F, 3-conductor, 1.0-mm² conductor size. Power cord set fittings (appliance coupler and wall plug) must bear the certification mark of the agency responsible for evaluation in the country or region where it will be used.

  • Page 126: 16 Statement Of Memory Volatility

    Following system shutdown and removal of all power sources from an HP Business PC system, personal data can remain on volatile system memory (DIMMs) for a finite period of time and will also remain in nonvolatile memory.
  • Page 127 Reboot the system. If the system has a Trusted Platform Module (TPM) and/or fingerprint reader, one or two prompts will appear—one to clear the TPM and the other to Reset Fingerprint Sensor; press or tap to accept or to reject. Remove all power and system batteries for at least 24 hours.

  • Page 128: Nonvolatile Memory Usage

    HP Sure Start only) backup of The content is managed Embedded Controller. critical System solely by the HP Sure Start BIOS code, EC Embedded Controller. firmware, and critical PC configuration data for select...
  • Page 129 Fingerprint reader 512 KByte flash Stores Fingerprint reader memory is Only a digitally signed fingerprint programmed by user application can make the templates. enrollment in HP call to write to the flash. ProtectTools Security Manager. Nonvolatile memory usage 119...

  • Page 130: Questions And Answers

    HP has provided options in Computer Setup (BIOS) to allow you to run in legacy BIOS, if required by the operating system. Examples of this requirement would be if you upgrade or downgrade the OS.

  • Page 131: Using Hp Sure Start (Select Models Only)

    BIOS to its previously safe state, without user intervention. Those select computer models ship with HP Sure Start configured and enabled. HP Sure Start is configured and already enabled so that most users can use the HP Sure Start default configuration. The default configuration can be customized by advanced users.

  • Page 132: 17 Recycling

    Follow the local laws and regulations in your area for battery disposal. HP encourages customers to recycle used electronic hardware, HP original print cartridges, and rechargeable batteries. For more information about recycling programs, see the HP Web site at http://www.hp.com/recycle.

  • Page 133: Index

    16 right pointing stick 10 Driver Recovery DVD, using 16 right TouchPad 10 creating 108 HP PC Hardware Diagnostics (UEFI) using for restore 111 using 96 Dual-Mode DisplayPort HP Recovery Disc Creator, using 108 identifying 6 Index 123...
  • Page 134 11, 12, 19 USB 3.0 charging (powered) 8 using for recovery 111 RJ-45 (network) 7 USB Type-C (charging) 6 HP Sure Start 121 TouchPad 11, 13 power button board webcam 9 spare part number 22 wireless 11, 12, 19...
  • Page 135 8 USB 3.0 port 6 USB flash drive 101 smart card reader board USB legacy support 81, 86, 91 using HP Recovery media 99 removal 68 USB ports, identifying 6 recovery media spare part number 68 USB Type-C (charging) port,...
  • Page 136 wireless antennas disconnecting 46, 48 wireless antennas, identifying 9 wireless certification label 20 wireless light 11, 12, 19 wireless, product description 2 WLAN antenna spare part number 25 WLAN antennas, identifying 9 WLAN device 20 WLAN label 20 WLAN/Bluetooth combo card removal 46 spare part number 23, 46 WWAN antenna...

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