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Maintenance and Service Guide
HP 280 G2 Microtower Business PC
HP 285 G2 Microtower Business PC

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Table of Contents

   Summary of Contents for HP 280 G2

  • Page 1 Maintenance and Service Guide HP 280 G2 Microtower Business PC HP 285 G2 Microtower Business PC...
  • Page 2 Hewlett-Packard bound by the terms of the HP End User License Not all features are available in all editions of Company under license. Intel, Celeron, and Agreement (EULA).
  • Page 3 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 4 Safety warning notice...
  • Page 5: Table Of Contents

    Table of contents 1 Product features ............................1 Standard configuration features ........................... 1 Front panel components ............................2 Rear panel components ............................3 Serial number location ............................3 2 Illustrated parts catalog ..........................4 Microtower (MT) chassis spare parts ........................4 Computer major components ......................
  • Page 6 Rear chassis fan ..............................40 Power supply ............................... 41 Fan sink ................................44 Processor for use in HP 280 G2 models (Intel) ....................45 Processor for use in HP 285 G2 models (AMD) ....................46 System board ............................... 47 System board callouts – HP 280 Pro G2 Microtower models ............48 System board callouts –...
  • Page 7 Deleting a Setup or Power-On password ......................98 9 Using HP PC Hardware Diagnostics (UEFI) ....................... 99 Downloading HP PC Hardware Diagnostics (UEFI) to a USB device ..............99 10 System backup and recovery ........................101 Backing up, restoring, and recovering in Windows 10 ..................101 Creating recovery media and backups ....................
  • Page 8 Creating recovery media ......................... 105 Creating recovery media using HP Recovery Manager (select models only) ....106 Creating recovery discs with HP Recovery Disc Creator (select models only) ..... 107 Creating recovery discs ................107 Backing up your information ..................107 System Restore ..........................
  • Page 9: Product Features

    Product features Standard configuration features Features may vary depending on the model. For support assistance and to learn more about the hardware and software installed on your computer model, run the HP Support Assistant utility. Standard configuration features...
  • Page 10: Front Panel Components

    Front panel components Drive configuration may vary by model. Some models have a bezel blank covering the optical drive bay. Item Component Item Component Slim Optical Drive (optional) USB 2.0 Ports (2) Dual-State Power Button Microphone/Headphone Connector Status LED SD Card Reader (optional) NOTE: When a device is plugged into the Microphone/Headphone Connector, a dialog box will pop up asking if you want to use the connector for a microphone Line-In device or a headphone.
  • Page 11: Rear Panel Components

    USB 3.0 Ports (2) NOTE: An optional second serial port and an optional parallel port are available from HP. When a device is plugged into the blue Line-In Audio Connector, a dialog box will pop up asking if you want to use the connector for a line-in device or a microphone.
  • Page 12: Illustrated Parts Catalog

    Power supply 300W, APFC (For use only in HP 280 G2 Microtower models in the People’s Republic of China) 300W, Energy Star (For use only in HP 280 G2 Microtower models in the People’s Republic of China) 180W, Energy Star...
  • Page 13 Memory modules for HP 285 G2 models (PC3-12800, 1600-MHz) 8-GB 4-GB 2-GB Processors for HP 280 G2 models (include replacement thermal material) Intel Core i7-6700, 3.4 GHz Intel Core i5-6600, 3.3 GHz Intel Core i5-6500, 3.2 GHz Intel Core i3-6320, 3.9 GHz Intel Core i3-6300, 3.8 GHz...
  • Page 14: Misc Parts

    Item Description AMD A6-6400B, 3.9 GHz AMD A6-5400B, 3.6 GHz AMD A4-7300B, 3.8 GHz AMD A4-6300B, 3.7 GHz AMD A4-5300B, 3.4 GHz not illustrated Misc parts Chapter 2 Illustrated parts catalog...
  • Page 15 SATA data cable, 280 mm, 1 straight end, 1 angled end SATA data cable, 254 mm, 2 straight ends Slim optical drive bezel blank Hard drive conversion bracket, 2.5-inch to 3.5-inch (HP 280 G2 models only) HP Business PC Security Lock Keyed cable lock...
  • Page 16: Misc Boards

    Hard drives/Solid-state drives 2-TB, 7200-rpm 1-TB, 7200-rpm 500-GB, 7200-rpm 256 GB Solid-state Drive (SSD), 2.5 inch (HP 280 G2 models only) 128 GB Solid-state Drive (SSD), 2.5 inch (HP 280 G2 models only) Grommet, hard drive isolation, blue Optical drives DVD±RW drive...
  • Page 17: Routine Care, Sata Drive Guidelines, And Disassembly Preparation

    Routine care, SATA drive guidelines, and disassembly preparation This chapter provides general service information for the computer. Adherence to the procedures and precautions described in this chapter is essential for proper service. CAUTION: When the computer is plugged into an AC power source, voltage is always applied to the system board.
  • Page 18: Preventing Electrostatic Damage To Equipment

    Preventing electrostatic damage to equipment Many electronic components are sensitive to ESD. Circuitry design and structure determine the degree of sensitivity. The following packaging and grounding precautions are necessary to prevent damage to electric components and accessories. ● To avoid hand contact, transport products in static-safe containers such as tubes, bags, or boxes. Protect all electrostatic parts and assemblies with conductive or approved containers or packaging.
  • Page 19: Recommended Materials And Equipment

    Recommended materials and equipment Materials and equipment that are recommended for use in preventing static electricity include: ● Antistatic tape ● Antistatic smocks, aprons, or sleeve protectors ● Conductive bins and other assembly or soldering aids ● Conductive foam ● Conductive tabletop workstations with ground cord of one-megohm +/- 10% resistance ●...
  • Page 20: Routine Care

    Never cover the ventilation slots on the monitor with any type of material. ● ● Install or enable power management functions of the operating system or other software, including sleep states. Routine care General cleaning safety precautions Never use solvents or flammable solutions to clean the computer. Never immerse any parts in water or cleaning solutions;...
  • Page 21: Cleaning The Monitor

    ● If you remove a key, use a specially designed key puller to prevent damage to the keys. This tool is available through many electronic supply outlets. CAUTION: Never remove a wide leveled key (like the space bar) from the keyboard. If these keys are improperly removed or installed, the keyboard may not function properly.
  • Page 22: Screws

    The screws used in the computer are not interchangeable. They may have standard or metric threads and may be of different lengths. If an incorrect screw is used during the reassembly process, it can damage the unit. HP strongly recommends that all screws removed during disassembly be kept with the part that was removed, then returned to their proper locations.
  • Page 23: Sata Hard Drives

    6.0 Gb/s SATA hard drive cables SATA data cable Always use an HP approved SATA 6.0 Gb/s cable as it is fully backwards compatible with the SATA 1.5 Gb/s drives. Current HP desktop products ship with SATA 6.0 Gb/s hard drives.
  • Page 24: Cable Management

    Cable management Always follow good cable management practices when working inside the computer. ● Keep cables away from major heat sources like the heat sink. ● Do not jam cables on top of expansion cards or memory modules. Printed circuit cards like these are not designed to take excessive pressure on them.
  • Page 25: Removal And Replacement Procedures - Microtower (mt) Chassis

    Removal and replacement procedures – Microtower (MT) chassis Adherence to the procedures and precautions described in this chapter is essential for proper service. After completing all necessary removal and replacement procedures, run the Diagnostics utility to verify that all components operate properly. NOTE: Not all features listed in this guide are available on all computers.
  • Page 26: Access Panel

    Access panel To access internal components, you must remove the access panel: Prepare the computer for disassembly (Preparation for disassembly on page Remove the two Torx screws (1), and then slide the panel back (2) and lift it off the computer (3). To replace the access panel, reverse the disassembly procedures.
  • Page 27: Front Bezel

    Front bezel Prepare the computer for disassembly (Preparation for disassembly on page Remove the access panel (Access panel on page Lift up the three tabs on the side of the bezel (1), and then rotate the bezel off the chassis (2). To replace the front bezel, reverse the disassembly procedures.
  • Page 28: Front Bezel Security

    Front bezel security The front bezel can be secured in place by installing a screw through the front of the chassis into the front bezel. Prepare the computer for disassembly (Preparation for disassembly on page Remove the access panel (Access panel on page Install a 6-32 screw through the front of the chassis and into the screw hole located below the center bezel release tab.
  • Page 29: Slim Optical Drive Bezel Blank

    Slim optical drive bezel blank On some models, there is a bezel blank covering the slim optical drive bay. Remove the bezel blank before installing an optical drive. To remove the bezel blank: Remove the access panel (Access panel on page Remove the front bezel (Front bezel on page To remove the bezel blank, press upward on the bottom tab and press downward on the top tab on the...
  • Page 30: Memory

    Maximum Memory 16 GB 16 GB HP offers upgrade memory for this computer and advises that the consumer purchase it to avoid compatibility issues with unsupported third-party memory. Populating DIMM sockets There are two DIMM sockets on the system board, with two sockets per channel. The sockets are labeled XMM1 and XMM2.
  • Page 31: Installing Dimms

    NOTE: Single channel and unbalanced dual channel memory configurations will result in inferior graphics performance. The system will operate in single channel mode if the DIMM sockets are populated in one channel only. ● ● The system will operate in a higher-performing dual channel mode if the total memory capacity of the DIMMs in Channel A is equal to the total memory capacity of the DIMMs in Channel B.
  • Page 32 Push the module down into the socket, ensuring that the module is fully inserted and properly seated. Make sure the latches are in the closed position (3). Repeat steps 3 and 4 to install any additional modules. Replace the computer access panel. Reconnect the power cord and turn on the computer.
  • Page 33: Expansion Cards

    WLAN module, 802.11 a/b/g/n, 2x2, with Bluetooth 4.0 WLAN module caddy card + Bluetooth HP 280 G2 models have one PCI expansion socket (select models only), one PCI Express x1 expansion socket, and one PCI Express x16 expansion socket. HP 285 G2 models have one PCI expansion socket, one PCI Express x1 expansion socket, and one PCI Express x16 expansion socket.
  • Page 34 Before installing an expansion card, remove the expansion slot cover or the existing expansion card. NOTE: Before removing an installed expansion card, disconnect any cables that may be attached to the expansion card. If you are installing an expansion card in a vacant socket, you must slide one of the expansion slot covers up and out of the chassis or use a flatblade screwdriver to pry out one of the metal shields on the rear panel that covers the expansion slot.
  • Page 35 If you are removing a PCI Express x16 card, pull the retention arm on the back of the expansion socket away from the card and carefully rock the card back and forth until the connectors pull free from the socket. Lift the card straight up then away from the inside of the chassis to remove it. Be sure not to scrape the card against other components.
  • Page 36: Drives

    ● HP has provided four extra 6-32 hard drive mounting screws installed on the front of the chassis next to the hard drive bays (1). If you are replacing a hard drive, remove the mounting screws from the old drive and install them in the new drive.
  • Page 37: Drive Positions

    CAUTION: To prevent loss of work and damage to the computer or drive: If you are inserting or removing a drive, shut down the operating system properly, turn off the computer, and unplug the power cord. Do not remove a drive while the computer is on or in standby mode. Before handling a drive, ensure that you are discharged of static electricity.
  • Page 38: Removing A 9.5 Mm Slim Optical Drive

    Removing a 9.5 mm slim optical drive Prepare the computer for disassembly (Preparation for disassembly on page Remove the access panel (Access panel on page Remove the front bezel (Front bezel on page Disconnect the power cable (1) and data cable (2) from the rear of the optical drive. CAUTION: When removing the cables, pull the tab or connector instead of the cable itself to avoid damaging the cable.
  • Page 39: Installing A 9.5 Mm Slim Optical Drive

    Installing a 9.5 mm slim optical drive Prepare the computer for disassembly (Preparation for disassembly on page 17). Remove the access panel (Access panel on page 18). If you are installing a slim optical drive in a bay covered by a bezel blank, remove the front bezel and then remove the bezel blank.
  • Page 40 Connect the power cable (1) and data cable (2) to the rear of the optical drive. If installing a new drive, connect the opposite end of the data cable to one of the SATA connectors (labeled SATA1 or SATA2) on the system board. Replace the front bezel if it was removed.
  • Page 41: Removing A Hard Drive

    Removing a hard drive NOTE: Before you remove the old hard drive, be sure to back up the data from the old hard drive so that you can transfer the data to the new hard drive. Prepare the computer for disassembly (Preparation for disassembly on page 17).
  • Page 42: Installing A Hard Drive

    Installing a hard drive Prepare the computer for disassembly (Preparation for disassembly on page 17). Remove the access panel (Access panel on page 18). You can install a 3.5-inch hard drive or a 2.5-inch hard drive with a 3.5-inch adapter bracket similar to the example shown below.
  • Page 43 Install four mounting screws into the sides of the 3.5-inch drive or the 2.5-inch drive adapter bracket (two on each side). NOTE: HP has supplied four extra mounting screws installed on the chassis next to the hard drive bays. Refer to Drives on page 28 for an illustration of the location of the extra mounting screws.
  • Page 44 Connect the power cable (1) and data cable (2) to the rear of the hard drive. If installing a new drive, connect the opposite end of the data cable to the appropriate system board connector. NOTE: You must connect the primary hard drive data cable to the dark blue connector labeled SATA0 to avoid any hard drive performance problems.
  • Page 45: Front I/o And Power Switch Assembly

    Front I/O and power switch assembly Prepare the computer for disassembly (Preparation for disassembly on page 17). Remove the computer access panel (Access panel on page 18). Remove the front bezel (Front bezel on page 19). Remove the cables from the clips on the base pan. Disconnect the three cables from the following system board connectors: F_PANEL (black) F_USB1 (white)
  • Page 46 Remove the Torx screw (1) that secures the assembly to the chassis, push the tab on the right side of the assembly (2) to disengage it from the chassis, and push the assembly into the chassis (3). Remove the assembly from the inside of the computer. To reinstall the assembly, reverse the removal procedure.
  • Page 47: Speaker

    Speaker Prepare the computer for disassembly (Preparation for disassembly on page 17). Remove the access panel (Access panel on page 18). Remove the front bezel (Front bezel on page 19). From the outside, front of the chassis, remove the two Torx screws that secure the speaker to the chassis.
  • Page 48: Rear Chassis Fan

    Rear chassis fan Prepare the computer for disassembly (Preparation for disassembly on page 17). Remove the access panel (Access panel on page 18). Remove the three silver Phillips screws that secure the fan to the rear of chassis. Disconnect the fan control cable (1) from the system board connector labeled SYS_FAN. Lift the fan out of the chassis (2).
  • Page 49: Power Supply

    Description 300W, APFC (For use only in HP 280 G2 Microtower models in the People’s Republic of China) 300W, Energy Star (For use only in HP 280 G2 Microtower models in the People’s Republic of China) 180W, Energy Star 180W, Energy Star for use in the APJ region 180W, APFC 180W, standard (available only for NA, LA and APJ regions, except the People’s Republic of China and India)
  • Page 50 Remove the power cable from the clip on the base pan. Disconnect the power supply cables from the following system board connectors: ATX_CPU ATX_PWR Press the tab (1) on the base pan in front of the power supply that holds it in place. Chapter 4 Removal and replacement procedures –...
  • Page 51 Slide the power supply toward the front of the computer, rotate toward the fan so the power supply clears the lip on the top of the chassis, and then lift the power supply out of the chassis (2). To install the power supply, reverse the removal procedure. Power supply...
  • Page 52: Fan Sink

    Fan sink CAUTION: The bond between the fan sink and the processor may be very tight. If the computer will power on, before removing the fan sink, turn on the computer until it warms the fan sink. Warming the fan sink lessens the bond between the heat sink and the processor, thereby making separating them easier.
  • Page 53: Processor For Use In Hp 280 G2 Models (intel)

    Processor for use in HP 280 G2 models (Intel) Description Description Intel Core i7-6700, 3.4 GHz Intel Pentium G4520, 3.6 GHz Intel Core i5-6600, 3.3 GHz Intel Pentium G4500, 3.5 GHz Intel Core i5-6500, 3.2 GHz Intel Pentium G4400, 3.3 GHz Intel Core i3-6320, 3.9 GHz...
  • Page 54: Processor For Use In Hp 285 G2 Models (amd)

    Processor for use in HP 285 G2 models (AMD) Description Description AMD A10-8750B, 3.6 GHz AMD A6-6400B, 3.9 GHz AMD A10-7800B, 3.57 GHz AMD A6-5400B, 3.6 GHz AMD A8-8650B, 3.2 GHz AMD A4-7300B, 3.8 GHz AMD A8-7600B, 3.1 GHz AMD A4-6300B, 3.7 GHz AMD A6-8550B, 3.7 GHz...
  • Page 55: System Board

    44). ● Processor (Processor for use in HP 280 G2 models (Intel) on page Disconnect all cables connected to the system board, noting their location for reinstallation. Remove the six Torx screws that secure the system board to the chassis.
  • Page 56: System Board Callouts - Hp 280 Pro G2 Microtower Models

    System board callouts – HP 280 Pro G2 Microtower models Sys Bd Label Color Component Sys Bd Label Color Component White Expansion card SATA1 White Any SATA Device other than the primary hard drive PCIE_X1 Black Expansion card SATA2 Light blue...
  • Page 57: System Board Callouts - Hp 280 G2 Microtower Models

    System board callouts – HP 280 G2 Microtower models Sys Bd Label Color Component Sys Bd Label Color Component PCIE_X1 Black Expansion card SATA1 White Any SATA Device other than the primary hard drive PCIE_X16 Black Expansion card SATA2 Light blue...
  • Page 58: System Board Callouts - Hp 285 G2 Microtower Models

    System board callouts – HP 285 G2 Microtower models Sys Bd Label Color Component Sys Bd Label Color Component White Expansion card ATX_POWER White 24-pin main power CLR_PSWD Black Clear system passwords SATA1 White Any SATA Device other than the primary hard...
  • Page 59: Computer Setup (f10) Utility

    Computer Setup (F10) Utility Computer Setup (F10) Utilities Use Computer Setup (F10) Utility to do the following: ● Change factory default settings. Set the system date and time. ● ● Set, view, change, or verify the system configuration, including settings for processor, graphics, memory, audio, storage, communications, and input devices.
  • Page 60: Using Computer Setup (f10) Utilities

    Using Computer Setup (F10) Utilities Computer Setup can be accessed only by turning the computer on or restarting the system. To access the Computer Setup Utilities menu, complete the following steps: Turn on or restart the computer. Repeatedly press when the monitor light turns green to access the utility. You can also press to a menu that allows you to access different options available at startup, including the Computer Setup utility.
  • Page 61: Computer Setup-file

    Computer Setup—File NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 5-1 Computer Setup—File Option Description System Information Lists: ● Manufacturer ● Product name ● SKU number ● Serial number ● Asset Tag ● Ownership Tag Born on Date ●...
  • Page 62: Computer Setup-storage

    Computer Setup—Storage NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 5-2 Computer Setup—Storage Option Description Device Lists all installed BIOS-controlled storage devices. Configuration When a device is selected, detailed information and options are displayed. The following options may be presented: ●...
  • Page 63: Computer Setup-security

    Table 5-2 Computer Setup—Storage (continued) Option Description select the preferred bootable device and press Enter. The computer then boots from the selected non-default device for this one time. Computer Setup—Security NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 5-3 Computer Setup—Security Option...
  • Page 64 Clear Secure Boot Keys—Don't Clear/Clear. Allows you to delete any previously loaded custom boot keys. Default is Don't Clear. Key Ownership—HP Keys/Custom Keys. Selecting Custom Mode allows you to modify the ◦ contents of the secure boot signature databases and the platform key (PK) that verifies kernels...
  • Page 65: Computer Setup-power

    Computer Setup—Security (continued) Option Description during system start up, allowing you to use alternative operating systems. Selecting HP Keys causes the computer boot using the preloaded HP-specific boot keys. Default is HP Keys. ● Fast Boot—Enable/Disable. Fast boot disables the ability to interrupt boot, such as pressing f keys to access items before the operating system loads.
  • Page 66: Recovering The Configuration Settings

    Table 5-5 Computer Setup—Advanced (for advanced users) (continued) ◦ Previous state—causes the computer to power on automatically as soon as power is restored, if it was on when power was lost. NOTE: If you turn off power to the computer using the switch on a power strip, you will not be able to use the suspend/sleep feature or the Remote Management features.
  • Page 67: Troubleshooting Without Diagnostics

    To assist you in resolving problems online, HP Instant Support Professional Edition provides you with self- solve diagnostics. If you need to contact HP support, use HP Instant Support Professional Edition's online chat feature. Access HP Instant Support Professional Edition at: http://www.hp.com/go/ispe.
  • Page 68: Helpful Hints

    If it becomes necessary to call for technical assistance, be prepared to do the following to ensure that your service call is handled properly: Be in front of your computer when you call. ● ● Write down the computer serial number, product ID number, and monitor serial number before calling. ●...
  • Page 69: Solving General Problems

    ● If you have installed an operating system other than the factory-installed operating system, check to be sure that it is supported on the system. ● If the system has multiple video sources (embedded, PCI, or PCI-Express adapters) installed (embedded video on some models only) and a single monitor, the monitor must be plugged into the monitor connector on the source selected as the primary VGA adapter.
  • Page 70 In case of forgotten password, power loss, or computer malfunction, you must manually disable the Smart Cover lock . A key to unlock the Smart Cover Lock is not available from HP. Keys are typically available from a hardware store.
  • Page 71 Poor performance. Cause Solution Processor is too hot. Make sure airflow to the computer is not blocked. Leave a 10.2-cm (4-inch) clearance on all vented sides of the computer and above the monitor to permit the required airflow. Make sure fans are connected and working properly (some fans only operate when needed).
  • Page 72 Computer powered off automatically and the Power LED flashes red four times and then white two times. Cause Solution Processor thermal protection activated: Ensure that the computer air vents are not blocked and the processor cooling fan is running. A fan may be blocked or not turning. Open the access panel, press the power button, and see if the processor fan (or other system fan) spins.
  • Page 73: Solving Power Problems

    Solving power problems Common causes and solutions for power problems are listed in the following table. Power supply shuts down intermittently. Cause Solution If equipped with a voltage selector, voltage selector switch on Select the proper AC voltage using the selector switch. rear of computer chassis (some models) not switched to correct line voltage (115V or 230V).
  • Page 74: Solving Hard Drive Problems

    Solving hard drive problems Hard drive error occurs. Cause Solution Hard disk has bad sectors or has failed. In Windows 7, click Start, click Computer, and right-click on a drive. Select Properties, and then select the Tools tab. Under Error-checking click Check Now. In Windows 10, type file in the taskbar search box, and then select File Explorer from the list of applications.
  • Page 75 Nonsystem disk/NTLDR missing message. Cause Solution The system is trying to start from the hard drive but the hard ▲ Perform Drive Protection System (DPS) testing in system drive may have been damaged. ROM. System files missing or not properly installed. Insert bootable media and restart the computer.
  • Page 76: Solving Media Card Reader Problems

    Solving media card reader problems Media card will not work in a digital camera after formatting it in Windows. Cause Solution By default, Windows will format any media card with a capacity Either format the media card in the digital camera or select FAT greater than 32MB with the FAT32 format.
  • Page 77: Solving Display Problems

    After installing the media card reader and booting to Windows, the reader and the inserted cards are not recognized by the computer. Cause Solution The operating system needs time to recognize the device if the Wait a few seconds so that the operating system can recognize reader was just installed into the computer and you are turning the reader and the available ports, and then recognize the media the PC on for the first time.
  • Page 78 Reseat DIMMs. Power on the system. Replace DIMMs one at a time to isolate the faulty module. Replace third-party memory with HP memory. Replace the system board. Blank screen and the power LED flashes Red six times, once every second, followed by a two second pause, and the computer beeps six times.
  • Page 79 Monitor does not function properly when used with energy saver features. Cause Solution Monitor without energy saver capabilities is being used with Disable monitor energy saver feature. energy saver features enabled. Dim characters. Cause Solution The brightness and contrast controls are not set properly. Adjust the monitor brightness and contrast controls.
  • Page 80 “No Connection, Check Signal Cable” displays on screen. Cause Solution Monitor video cable is disconnected. Connect the video cable between the monitor and computer. CAUTION: Ensure that the computer power is off while connecting the video cable. “Out of Range” displays on screen. Cause Solution Video resolution and refresh rate are set higher than what the...
  • Page 81: Solving Audio Problems

    Solution with the synchronization, go to the following Web site, select the appropriate monitor, and download either SP32347 or SP32202: http://www.hp.com/support Graphics card is not seated properly or is bad (some models). Reseat the graphics card. Replace the graphics card.
  • Page 82 Sound does not come out of the speaker or headphones. Cause Solution Headphones or devices connected to the line-out connector mute Turn on and use headphones or external speakers, if connected, the internal speaker. or disconnect headphones or external speakers. Computer is in Sleep state.
  • Page 83: Solving Printer Problems

    There is no sound or sound volume is too low. Cause Solution The application is set to use a different audio device than Some graphics cards support audio over the DisplayPort speakers. connection (if applicable), so multiple audio devices may be listed in Device Manager.
  • Page 84: Solving Keyboard And Mouse Problems

    Printer prints garbled information. Cause Solution The correct printer driver for the application is not installed. Install the correct printer driver for the application. The cables may not be connected properly. Reconnect all cables. Printer memory may be overloaded. Reset the printer by turning it off for one minute, then turn it back Printer will not print.
  • Page 85 Cursor will not move using the arrow keys on the keypad. Cause Solution Num Lock key is on. Press the Num Lock key. The Num Lock light should be off if you want to use the arrow keys on the keypad. You can disable or enable the Num Lock key in Computer Setup at Advanced >...
  • Page 86: Solving Hardware Installation Problems

    Solving hardware installation problems You may need to reconfigure the computer when you add or remove hardware, such as an additional drive or expansion card. If you install a plug and play device, Windows automatically recognizes the device and configures the computer. If you install a non-plug and play device, you must reconfigure the computer after completing installation of the new hardware.
  • Page 87: Solving Network Problems

    DIMM1 or XMM1 must always be installed. DIMM1 must be installed before DIMM2, and DIMM3 must be installed before DIMM4 Replace third-party memory with HP memory. Replace the system board. Solving network problems Some common causes and solutions for network problems are listed in the following table. These guidelines do not discuss the process of debugging the network cabling.
  • Page 88 Network status link light never flashes. NOTE: The network status light is supposed to flash when there is network activity. Cause Solution No active network is detected. Check cabling and network equipment for proper connection. Network controller is not set up properly. Check for the device status within Windows, such as Device Manager for driver load and the Network Connections applet within Windows for link status.
  • Page 89 Diagnostics passes, but the computer does not communicate with the network. Cause Solution Make sure the correct network client and protocol is installed. The network controller is not configured for this computer. Select the Network and Sharing Center icon in the Control Panel and configure the network controller.
  • Page 90: Solving Memory Problems

    Management Engine (ME) settings). To avoid damage to the DIMMs or the system board, you must unplug the computer power cord before attempting to reseat, install, or remove a memory module. For those systems that support ECC memory, HP does not support mixing ECC and non-ECC memory. Otherwise, the computer will not boot the operating system.
  • Page 91: Solving Cd-rom And Dvd Problems

    Memory is installed incorrectly or is bad. Reseat DIMMs. Power on the system. Replace DIMMs one at a time to isolate the faulty module. Replace third-party memory with HP memory. Replace the system board. Solving CD-ROM and DVD problems If you encounter CD-ROM or DVD problems, see the common causes and solutions listed in the following table or to the documentation that came with the optional device.
  • Page 92 Drive not found (identified). Cause Solution Cable could be loose. Check cable connections. The system may not have automatically recognized a newly See reconfiguration directions in the Solving hardware installation installed device. problems on page 78 section. If the system still does not recognize the new device, check to see if the device is listed within Computer Setup.
  • Page 93: Solving Usb Flash Drive Problems

    CD-ROM, CD-RW, DVD-ROM, or DVD-R/RW drive cannot read a disc or takes too long to start. Cause Solution Media has been inserted upside down. Re-insert the media with the label facing up. The DVD-ROM drive takes longer to start because it has to Wait at least 30 seconds to let the DVD-ROM drive determine the determine the type of media played, such as audio or video.
  • Page 94: Solving Front Panel Component Problems

    System will not boot from USB flash drive. Cause Solution Boot order is not correct. Run the Computer Setup utility and change boot sequence in Storage > Boot Order. Removable Media Boot is disabled in the Computer Setup utility. Run the Computer Setup utility and enable booting to removable media in Storage >...
  • Page 95: Solving Internet Access Problems

    Solving Internet access problems If you encounter Internet access problems, consult your Internet Service Provider (ISP) or refer to the common causes and solutions listed in the following table. Unable to connect to the Internet. Cause Solution Internet Service Provider (ISP) account is not set up properly. Verify Internet settings or contact your ISP for assistance.
  • Page 96: Solving Software Problems

    If you have installed an operating system other than the factory-installed operating system, check to be sure it is supported on the system. If you encounter software problems, see the applicable solutions listed in the following table. Computer will not continue and the HP logo does not display. Cause Solution ROM issue - POST error has occurred.
  • Page 97: Post Error Messages And Diagnostic Front Panel Leds And Audible Codes

    POST error messages and diagnostic front panel LEDs and audible codes This appendix lists the error codes, error messages, and the various indicator light and audible sequences that you may encounter during Power-On Self-Test (POST) or computer restart, the probable source of the problem, and steps you can take to resolve the error condition.
  • Page 98 Control panel message Description Recommended action RTC (real-time clock) battery may need to problem persists, replace the RTC battery. See be replaced. the Removal and Replacement section for instructions on installing a new battery. 008–Microcode Patch Error Processor is not supported by the BIOS. Upgrade BIOS to proper version.
  • Page 99 Run the Drive Protection erroneous error message.) System test under using F2 Diagnostics when booting the computer. Apply hard drive firmware patch if applicable. (Available at http://www.hp.com/support.) POST numeric codes and text messages...
  • Page 100 System test under using F2 Diagnostics when booting the computer. Apply hard drive firmware patch if applicable. (Available at http://www.hp.com/support.) Back up contents and replace hard drive. 309 – 30C: Hard Disk 3–6: SMART Hard Drive Hard drive is about to fail. (Some hard drives...
  • Page 101 500–BIOS Recovery A system BIOS recovery has occurred. Not applicable. 60x-HP Battery Alert The system has detected the storage capacity For optimal performance, replace the battery. of the battery stated below to be very low. 70x-Wireless Mode Not Supported The system has detected a wireless module Replace with a supported module.
  • Page 102: Interpreting System Validation Diagnostic Front Panel Leds And Audible Codes

    Control panel message Description Recommended action 910–Filter Warning Airflow filter is dirty. Replace the airflow filter. 90B-Fan Failure The system has detected that a cooling fan is Reseat fan. not operating correctly. Reseat fan cable. Replace fan. 90D-System Temperature Thermal shutdown occurred. The system BIOS Make sure system has proper airflow.
  • Page 103 Number of long beeps/blinks Error category Thermal System board Patterns of blink/beep codes are determined by using the following parameters: ● 1 second pause occurs after the last major blink. ● 2 second pause occurs after the last minor blink. ●...
  • Page 104: Password Security And Resetting Cmos

    Password security and resetting CMOS This computer supports security password features, which can be established through the Computer Setup Utilities menu. This computer supports two security password features that are established through the Computer Setup Utilities menu: setup password and power-on password. When you establish only a setup password, any user can access all the information on the computer except Computer Setup.
  • Page 105: Changing A Setup Or Power-on Password

    The password jumper is green so that it can be easily identified. For assistance locating the password jumper and other system board components, see the system board components image at System board callouts – HP 285 G2 Microtower models on page Remove the jumper from pins 1 and 2.
  • Page 106: Deleting A Setup Or Power-on Password

    When the key icon appears, type your current password, a slash (/) or alternate delimiter character, your new password, another slash (/) or alternate delimiter character, and your new password again as shown: current password/new password/new password NOTE: Type the new password carefully since the characters do not appear on the screen. Press Enter.
  • Page 107: Using Hp Pc Hardware Diagnostics (uefi)

    Using 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 108 Enter the product name or number. – or – Select Identify now to let HP automatically detect your product. Select your computer, and then select your operating system. In the Diagnostic section, follow the on-screen instructions to select and download the UEFI version you want.
  • Page 109: 10 System Backup And Recovery

    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 110: Using Windows Tools

    DVD-R, DVD+R, DVD-R DL, or DVD+R DL discs. Do not use rewritable discs such as CD±RW, DVD±RW, double-layer DVD±RW, or BD-RE (rewritable Blu-ray) discs; they are not compatible with HP Recovery Manager software. Or, instead, you can use a high- quality blank USB flash drive.
  • Page 111: Recovering Using Hp Recovery Manager

    101. ● 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. You can also find contact information from the HP website.
  • Page 112: 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 113: Backing Up, Restoring, And Recovering In Windows 7

    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. So before you remove the Recovery partition, create HP Recovery media; see Creating HP Recovery media (select products only) on page 101.
  • Page 114: Creating Recovery Media Using Hp Recovery Manager (select Models Only)

    Click the Start button, click All Programs, click Security and Protection, click Recovery Manager, and then click HP Recovery Media Creation. If prompted, click Yes to allow the program to continue. Click Create recovery media using blank DVD(s), and then click Next.
  • Page 115: Creating Recovery Discs With Hp Recovery Disc Creator (select Models Only)

    Creating recovery discs with HP Recovery Disc Creator (select models only) HP Recovery Disc Creator is a software program that offers an alternative way to create recovery discs on select models. After you successfully set up the computer, you can create recovery discs using HP Recovery Disc Creator.
  • Page 116: System Restore

    If you were not able to create system recovery DVDs or USB flash drive, you can order a recovery disc set from support. Go to http://www.hp.com/support, select your country or region, and follow the on-screen instructions.
  • Page 117: System Recovery When Windows Is Responding

    Disconnect all peripheral devices from the computer, except the monitor, keyboard, and mouse. Press the power button to turn on the computer. As soon as you see the HP logo screen, repeatedly press the key on your keyboard until the Windows is Loading Files…...
  • Page 118: System Recovery Using Recovery Media (select Models Only)

    Using HP Recovery Disc operating system discs (select models only) Use the steps provided in this section if you used HP Recovery Disc Creator to create a Windows 7 operating system DVD and a Driver Recovery DVD. If you created recovery media using...
  • Page 119 To order a Windows 7 operating system DVD, contact support. Go to http://www.hp.com/support, select your country or region, and follow the on-screen instructions. CAUTION: Using a Windows 7 operating system DVD completely erases the hard drive contents and reformats the hard drive. All files that you have created and any software that you have installed on the computer are permanently removed.
  • Page 120: Appendix A Battery Replacement

    The lithium battery is only used when the computer is NOT connected to AC power. HP encourages customers to recycle used electronic hardware, HP original print cartridges, and rechargeable batteries. For more information about recycling programs, go to http://www.hp.com/recycle.
  • Page 121 Slide the replacement battery into position, positive side up. The battery holder automatically secures the battery in the proper position. Type 2 To release the battery from its holder, squeeze the metal clamp that extends above one edge of the battery. When the battery pops up, lift it out (1). To insert the new battery, slide one edge of the replacement battery under the lip of the holder with the positive side up.
  • Page 122 Insert the new battery and position the clip back into place. NOTE: After the battery has been replaced, use the following steps to complete this procedure. Replace the computer access panel. Plug in the computer and turn on power to the computer. Reset the date and time, your passwords, and any special system setups using Computer Setup.
  • Page 123: Appendix B Power Cord Set Requirements

    Power Cord Set Requirements The power supplies on some computers have external power switches. The voltage select switch feature on the computer permits it to operate from any line voltage between 100-120 or 220-240 volts AC. Power supplies on those computers that do not have external power switches are equipped with internal switches that sense the incoming voltage and automatically switch to the proper voltage.
  • Page 124: Country-specific Requirements

    Country-Specific Requirements Additional requirements specific to a country are shown in parentheses and explained below. Country Accrediting Agency Country Accrediting Agency Australia (1) EANSW Italy (1) Austria (1) Japan (3) METI Belgium (1) CEBC Norway (1) NEMKO Canada (2) Sweden (1) SEMKO Denmark (1) DEMKO...
  • Page 125: Appendix C Statement Of Volatility

    Follow the instructions to flash the BIOS that are found on the website. Flashing the BIOS will reset it back to factory settings. Turn on the system, and while system is powering on, and after the HP splash screen, press the to enter BIOS setup screen.
  • Page 126 Locate the two pin password jumper labeled CLR_PSWD and remove it. Remove the AC power, wait 10 seconds until the unit AC power has drained out. Replace the hood and AC power cord and turn the computer on. The passwords are now cleared and all other user-configurable, non-volatile memory settings are reset to their factory default values.
  • Page 127: Appendix D Specifications

    Specifications MT Specifications Table D-1 Specifications Chassis 14.13 in 35.88 cm Height 6.69 in 17.00 cm Width 13.98 in 35.50 cm Depth Approximate Weight 13.47 lb 6.11 kg Temperature Range 50° to 95°F 10° to 35°C Operating -22° to 140°F -30°...
  • Page 128: Index

    HP PC Hardware Diagnostics (UEFI) F10 Setup CD-ROM or DVD problems 83 using 99 access problem 61 changing a Power-On password 97 HP Recovery Disc Creator, using 107 changing a Setup password 97 illustrated 7 clamp lock fan sink installing...
  • Page 129 passwords 97, 98 recovery media, creating Windows keyboard POST error messages 89 7 105 cleaning 12 power adapter for optical drive recovery USB flash drive, steps for keyboard problems 76 illustrated 7 creating Windows 7 106 power cord set requirements removal and replacement country specific 116 front USB panel 37...
  • Page 130 speaker Windows 7 operating system discs illustrated 7 using for restore 110 removal and replacement 39 Windows 7 operating system DVD specifications creating 107 computer 119 using for restore 110 specifications, memory 22 Windows 7 operating system media static electricity 9 creating 107 system board illustrated 5...

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