HP Pro Tower 400 G9 PCI Desktop PC Maintenance and Service Guide
HP Pro Tower 400 G9 PCI Desktop PC Manual
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- HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 1
Maintenance and Service Guide SUMMARY This guide provides information about spare parts, removal and replacement of parts, security, backing up, and more. - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 2
com/SmodeFAQ. To access the latest user guides, go to http://www.hp.com/support, and follow the instructions to find your product. Then select Manuals. Software terms By installing, copying, downloading, or otherwise using any software product preinstalled on this computer, you agree to be bound by - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 3
precautions...13 Removing dirt and debris from your computer...14 Cleaning your computer with a disinfectant ...14 Cleaning the computer case ...15 Cleaning the keyboard ...15 Cleaning the monitor ...16 Cleaning the mouse ...16 Service considerations...16 Tools and software requirements ...16 Screws - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 4
cables ...46 5 Troubleshooting without diagnostics...48 Before you call for technical support ...48 Helpful hints ...49 Solving general problems...49 Cannot access the Computer Setup (F10) Utility when booting the computer 50 Computer appears locked up and will not turn off when the power button is - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 5
...59 A new device is not recognized as part of the system 59 Computer will not start...60 Power light blinks red three times and then white two times 60 Solving network problems ...61 Network driver does not detect network controller 61 Network status link light never blinks ...61 Diagnostics - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 6
DOS after making a bootable flash drive 65 Solving internet access problems ...65 Unable to connect to the internet ...65 Cannot automatically launch internet programs...66 Solving software problems ...66 Computer will not start up and the HP logo does not appear 66 "Illegal Operation has Occurred - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 7
BIOS steps...103 Nonvolatile memory usage ...105 Questions and answers ...107 Using HP Sure Start (select products only) ...109 12 Power cord set requirements ...110 General requirements...110 Japanese power cord requirements ...110 Country-specific requirements...110 13 Specifications...112 Index - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 8
, read this section. Features 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. Front panel components To identify the front panel components, use these illustrations - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 9
combo jack supports headphones, line output devices, microphones, line input devices, CTIA-style headsets, or OMTPstyle headsets. NOTE: The light on the power button is normally white when the power is on. If the light blinks red, the computer displays a diagnostic code to indicate a problem. See - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 10
Audio-out jack for powered audio devices* 7 2 port (select products only) 10 Power connector 5 RJ-45 (network) jack can turn on the computer or wake it from Hibernation if you have might have additional ports available from HP. When a graphics card is computer has a unique serial - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 11
4 Chapter 1 Computer features - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 12
product parts. For complete and current information about supported parts for your computer, go to http://partsurfer.hp.com, select your country or region, and then follow the on-screen instructions. Computer major components To identify the computer major components, use this illustration and table - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 13
Table 2-1 Computer major components and their descriptions (continued) Item Description (3) Solid HDMI DisplayPort Second serial port Serial port + USB VGA port (9) Dust filter (10) Hard drive (11) Power supply 400 W 260 W 180 W (12) Speaker (13) WLAN module Intel® Wi-Fi 6 AX201 - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 14
Table 2-1 Computer major components and their descriptions (continued) Item Description (15) Card reader (16) Hood lock (17) Heat sink (18) Front bezel * Expansion cards NVIDIA® Quadro® T400 - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 15
500 GB, 7200 rpm, 3.5 in Miscellaneous parts To identify the various computer parts, use this table. Table 2-3 Miscellaneous parts and their descriptions SATA, 9 in, 2 straight ends, RF SATA power cable SATA power cable, RF SATA power cable, inch hard drive Adapter DisplayPort-to-VGA DisplayPort- - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 16
their descriptions (continued) Description Mouse PS/2, optical USB HP 125 antimicrobial, wired HP 125 wired HP 128 laser, wired HP 655 wireless mouse + keyboard Keyboard USB slim, smartcard PS/2, slim USB HP 125, wired HP 125 antimicrobial, wired Power cord (C13, 1.83 m [6 ft]) Miscellaneous parts - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 17
procedures and precautions is essential for proper service. IMPORTANT: When the computer is plugged into an AC power source, AC voltage is always applied to the system board. You must disconnect the power cord from the power source before opening the computer to prevent electric shock, system board - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 18
Table 3-1 Static electricity occurrence based on activity and humidity (continued) Motions of bench worker Relative humidity 400 V 800 V Removing DIPs (dual in-line packages) from plastic tube 400 V 700 V Removing DIPs from vinyl tray 2,000 V 4,000 V Removing DIPs from polystyrene foam - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 19
laminate. Handle them only at static-free work areas. ● Turn off power and input signals before inserting and removing connectors or test equipment. ● Use Use field service tools, such as cutters, screwdrivers, and vacuums, that are conductive. Recommended materials and equipment HP recommends the - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 20
against the front of the desktop unit as this also restricts airflow. ● Occasionally clean the air vents on all vented sides of the computer. Lint, dust, and other the computer and keyboard. ● Never cover the ventilation slots on the monitor with any type of material. ● Install or enable power - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 21
computer. 1. Wear disposable gloves made of latex (or nitrile gloves, if you are latex-sensitive) when cleaning the surfaces. 2. Turn off your device and unplug the power getting moisture in any openings. If liquid makes its way inside your HP product, it can cause damage to the product. Do not spray - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 22
any openings. If liquid makes its way inside your HP product, it can cause damage to the product. Do to the bottom. Finish with any flexible cables, like power cord, keyboard cable, and USB cables. 6. Be , follow the procedures described in Cleaning the computer case on page 15. When cleaning debris - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 23
considerations Keep these considerations in mind during the disassembly and assembly of the computer. Tools and software requirements Servicing the computer requires these tools. ● Torx T-15 screwdriver ● Flat-bladed screwdriver (can sometimes be used in place of the Torx screwdriver) ● Phillips - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 24
: When servicing this computer, be sure to power to the real-time clock and has a minimum lifetime of approximately three years. See the appropriate removal and replacement chapter for the chassis that you are working on for instructions on the replacement procedures. WARNING! This computer - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 25
cable 7/7 Number of pins in power cable 15 Maximum data cable an HP-approved SATA 6.0 Gbps cable because it is fully backwards compatible with the SATA 1.5 Gbps drives. Current HP desktop products good cable management practices when working inside the computer. ● Keep cables away from major heat - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 26
in this guide are available on all computers. NOTE: HP continually improves and changes product parts. For complete and current information about supported parts for your computer, go to https://partsurfer.hp.com/partsurfer/, select your country or region, and then follow the on-screen instructions - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 27
following specifications: ● Industry-standard 288-pin ● 1.2 volt DDR4-SDRAM memory modules ● DDR4-3200 SDRAM UDIMM ● Mandatory JEDEC SPD information The computer supports the following setups: ● 512 Mbit, 1 Gbit, 2 Gbit, and 4 Gbit non-ECC memory technologies ● Single-sided and double-sided memory - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 28
and DIMM3. IMPORTANT: You must disconnect the power cord and wait approximately 30 seconds for the power to drain before adding or removing memory modules. Regardless of the power state, voltage is always supplied to the memory modules as long as the computer is plugged into an active AC outlet - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 29
. Before removing the optical drive, follow these steps: 1. Prepare the computer for disassembly (see Preparation for disassembly on page 19). 2. Remove the access panel (see Access panel on page 19). Remove the optical drive: 1. Disconnect the power cable and data cable from the rear of the optical - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 30
drive (2), and then slide the drive forward and out of the front of the computer (3). 3. If you are installing an optical drive in a bay covered by a , reverse the removal procedure. When installing an optical drive, connect the power cable and data cable to the rear of the drive, and then connect - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 31
6-32 security screw into the front bezel, use these procedures. Before installing the front bezel security screw, follow these steps: 1. Prepare the computer for disassembly (see Preparation for disassembly on page 19). 2. Remove the access panel (see Access panel on page 19). 3. Remove the optical - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 32
drive bays. You must remove the bezel blank before installing an optical drive. Before removing the bezel blank, follow these steps: 1. Prepare the computer for disassembly (see Preparation for disassembly on page 19). 2. Remove the access panel (see Access panel on page 19). 3. Remove the optical - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 33
Use this illustration and table to determine system board connection locations. Table 4-1 System board connections Item Component (1) Power supply (2) Processor fan (3) Memory module (channel A) (4) Memory module (channel B) 26 Chapter 4 Removal and replacement procedures Item - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 34
the lifetime of the lithium battery by plugging the computer into an AC outlet. The lithium battery is used only 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 - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 35
, you must install the first (primary) card in the PCI Express ×16 socket. Before replacing the expansion modules, follow these steps: 1. Prepare the computer for disassembly (see Preparation for disassembly on page 19). 2. Remove the access panel (see Access panel on page 19). To replace or add an - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 36
2. Release the slot cover retention latch that secures the slot covers by lifting the tab on the latch and rotating the latch to the open position. 3. If you are removing a PCI Express ×1 card, hold the card at each end and carefully rock it back and forth until the connectors pull free from the - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 37
. IMPORTANT: 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. 30 Chapter 4 Removal and - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 38
panel (see Access panel on page 19). Remove the hard drive: To remove the hard drive mounted to the inside-front of the computer behind the bezel: 1. Disconnect the power and data cables from the back of the hard drive. 2. While holding the drive, remove the screws that secure the drive to - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 39
To remove the hard drive under the drive cage: 1. Disconnect the power and data cables from the back of the hard drive (1). 2. While holding the drive, remove the three screws that secure the drive to the cage (2) - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 40
(2) 2.5 inch drive Drive cage To remove the drive cage, use these procedures. Before removing the drive cage, follow these steps: 1. Prepare the computer for disassembly (see Preparation for disassembly on page 19). 2. Remove the access panel (see Access panel on page 19). Drive cage screw locations - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 41
page 22). 4. Remove the front bezel (see Front bezel on page 24). Remove the drive cage: 1. Remove the Torx screw from the front of the computer (1). 2. Lift the tab on the inside-left of the drive cage (2) and rotate the cage upward to approximately 50-60° (3). 3. Remove the drive cage (4). To - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 42
To remove the WLAN module, use these procedures. For a list of available WLAN modules, see Computer major components on page 5. Before removing the WLAN module, follow these steps: 1. Prepare the computer for disassembly (see Preparation for disassembly on page 19). 2. Remove the access panel (see - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 43
module Main terminal. The WLAN antenna cable labeled 2/AUX connects to the WLAN module Aux terminal. 3. Remove the screw (3) that secures the module to the computer. 4. Pull the module to remove it from the socket (4). 5. If the WLAN antenna is not connected to the terminal on the WLAN module, you - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 44
the removal procedure. Serial port To remove serial port, use these procedures. Before replacing the serial port, follow these steps: 1. Prepare the computer for disassembly (see Preparation for disassembly on page 19). 2. Remove the access panel (see Access panel on page 19). To replace the serial - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 45
removal procedure. Hood sensor To remove the hood sensor, use these procedures. Before removing the hood sensor, follow these steps: 1. Prepare the computer for disassembly (see Preparation for disassembly on page 19). 2. Remove the access panel (see Access panel on page 19). Remove the hood sensor - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 46
the board to the system board. 2. Lift to disengage the board from the system board connector, and then remove the option board from the computer (2). To install the option board, reverse the removal procedure. Heat sink To remove the heat sink, use these procedures. IMPORTANT: The bond between the - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 47
. The pins on the socket are fragile, and any damage to them could require replacing the system board. 3. Remove the heat sink from the computer (3). 4. Thoroughly clean the thermal material from the surfaces of the heat sink and the system board components each time the heat sink is removed - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 48
To remove the processor, use these procedures. For a list of available processors, see Computer major components on page 5. Before removing the processor, follow these steps: 1. Prepare the computer for disassembly (see Preparation for disassembly on page 19). 2. Remove the access panel (see - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 49
inside of the chassis, remove the Phillips screw that secures the card reader to the system board (2). 3. Remove the card reader from the computer (3). To install the card reader, reverse the removal procedure. Speaker To remove the speaker, use these procedures. Before removing the speaker, follow - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 50
to remove it (4). To install the speaker, reverse the removal procedures. Power supply To remove the power supply, use these procedures. Before removing the power supply, follow these steps: 1. Prepare the computer for disassembly (see Preparation for disassembly on page 19). 2. Remove the access - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 51
of the chassis. 4. Press the release lever at the front of the power supply (6), slide the power supply toward the front of the computer, and then lift the power supply out of the chassis (7). To install the power supply, reverse the removal procedures. System board To remove the system board, use - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 52
board, you must change the chassis serial number in the BIOS. When replacing the system board, you must reprogram the SMBIOS information about the affected computer. Failure to reprogram the board will result in eventual failure, such as an activation failure (when you would have to reactivate the - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 53
. The cables route from the WLAN module to the antennas mounted on the front of the computer. Before removing the wireless antennas and cables, follow these steps: 1. Prepare the computer for disassembly (see Preparation for disassembly on page 19). 2. Remove the access panel (see Access panel - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 54
7. Pull the antenna cable out through the hole in the front of the chassis (4). To install the wireless antennas and cables, reverse the removal procedures. Wireless antennas and cables 47 - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 55
Information guide. Before you call for technical support If you are having problems with the computer, try these solutions to isolate the exact problem before calling for technical support. ● Run the HP diagnostic tool. ● Run the hard drive self-test in Computer Setup. ● Check the power light - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 56
it is supported on the system. NOTICE: When the computer is plugged into an AC power source, voltage is always applied to the system board. You must disconnect the power cord from the power source before opening the computer to prevent system board or component damage. Solving general problems You - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 57
or - Follow the Windows® instructions for rebooting the computer into the Computer Setup (F10) Utility. Computer appears locked up and will not turn off when the power button is pressed Use this information to troubleshoot the computer. Cause Software control of the power switch is not functional - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 58
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. Poor performance Use this information to troubleshoot the computer. Cause Processor - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 59
Add more memory. 3. Upgrade the graphics solution. Restart the computer. Computer turned off automatically and the power light blinks red four times and then white two times Use this information to troubleshoot the computer. Cause Processor thermal protection activated. A fan might be blocked or - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 60
supply. 6. Replace the system board. Solving power problems These tables provide common causes and solutions for power problems. Power supply shuts down intermittently Use this information to troubleshoot the computer. Cause If the computer has a voltage selector, the voltage selector switch - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 61
are functioning properly. 4. Replace the power supply. 5. Replace the system board. Solving hard drive problems These tables provide common causes and solutions for hard drive problems. Hard drive error occurs Use this information to troubleshoot the computer. Cause Hard disk has bad sectors - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 62
found (identified) Use this information to troubleshoot the computer. Cause Cable could be loose. The system Computer Setup. If it is listed, the probable cause is a driver problem. If it is not listed, the probable cause is a hardware problem. If this is a newly installed drive, run the Computer - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 63
the power. To restart the computer, press the power button again. Solving audio problems If the computer has audio features and you encounter audio problems, see the common causes and solutions listed in these tables. Sound cuts in and out Use this information to troubleshoot the computer. Cause - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 64
to its default value. Solving printer problems If you encounter printer problems, see the documentation that came with the printer and the common causes and solutions listed in these tables. Printer will not print Use this information to troubleshoot the computer. Cause Printer is not turned on - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 65
The cables might not be connected properly. Solution Reconnect all cables, and check the power cord and electrical outlet. Printer prints garbled information Use this information to troubleshoot the computer. Cause The correct printer driver for the application is not installed. The cables might - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 66
do not hold down the power button for more than 4 seconds. Otherwise, the computer will shut down, and you will lose any unsaved data. Follow the instructions that came with the mouse. Solving hardware installation problems You might need to reconfigure the computer when you add or remove hardware - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 67
. Beeps and blinking lights are codes for specific problems. 3. If you still cannot resolve the issue, contact Customer Support. Power light blinks red three times and then white two times Use this information to troubleshoot the computer. Cause Memory is installed incorrectly or is bad. Solution - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 68
Some common causes and solutions for network problems are listed in these tables. The guidelines do not discuss the process of debugging the network cabling. Network driver does not detect network controller Use this information to troubleshoot the computer. Cause Network controller is disabled - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 69
. The cable is attached to the incorrect connector. There is a problem with the cable or a device at the other end of the an authorized service provider. Diagnostics passes, but the computer does not communicate with the network Use this information to troubleshoot the computer. Cause Network - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 70
EEPROM Use this information to troubleshoot the computer. Cause Unprogrammed EEPROM. Solution Contact an authorized service provider. Solving memory problems If you encounter memory problems, some common causes and solutions are listed in these tables. IMPORTANT: Power can still be supplied to - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 71
memory with HP memory. 4. Replace the system board. Solving USB flash drive problems If you encounter USB flash drive problems, common causes and solutions are listed in these tables. USB flash drive is not seen as a drive letter in Windows Use this information to troubleshoot the computer. Cause - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 72
problems, consult your internet service provider (ISP), or see the common causes and solutions listed in these tables. Unable to connect to the internet Use this information to troubleshoot the computer. Cause Internet Service cable/DSL modem. You should see a power light on the front of the cable/ - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 73
operating system, it might not be supported on the system. If you encounter software problems, see the applicable solutions listed in the following table. Computer will not start up and the HP logo does not appear Use this information to troubleshoot the computer. Cause ROM issue - POST error has - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 74
(when supported by drive). Using Computer Setup (F10) Utilities You can access Computer Setup only by turning the computer on or restarting the system. To access the Computer Setup Utilities menu, complete these steps: 1. Turn on or restart the computer. 2. Repeatedly press f10 when the power button - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 75
power off while the BIOS is saving the Computer Setup (F10) changes because the settings could become corrupted. It is safe to turn off the computer only after exiting the F10 Setup screen. Computer Setup Main This table provides information about the Computer Setup Main menu. NOTE: Support - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 76
. Default is disabled. Update System BIOS Lets you update the system BIOS from www.hp.com or another network server, from a removable USB drive, or from a file Firmware Update Service Allows the operating system to drive firmware updates (for example, Windows Update). Computer Setup Main 69 - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 77
Table 6-1 Computer Setup Main (continued) Option Description BIOS Rollback Policy ■ Unrestricted Rollback to older BIOS: Lets you roll back to any previous version of BIOS. ■ Restricted Rollback to older BIOS: If selected, Minimum BIOS Version becomes active, which lets you manually enter the - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 78
Computer Setup, and reboots. Computer Setup Security This table provides information about the Computer Setup Security menu. NOTE: Support for specific Computer change system settings ● BIOS Configuration Utility (BCU) ● Alternative power-on password NOTE: Creating a BIOS user disables the Fast - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 79
credentials to modify the power-on password. Security HP Sure Start recovery. When this policy is set to manual, HP Sure Start will not correct any issues that are found until the local user enters the manual recovery key sequence. This can result in a computer that cannot boot until the manual - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 80
occurred. - Log Event and power off system: In addition to logging all critical security events, HP Sure Start turns of the computer upon detecting a HP Sure Start Security Event. Because . Set this option to disable to support Device Guard. Default is enabled. Computer Setup Security 73 - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 81
Mode (EBAM). ● Deactivate HP Sure Run: Requires BIOS Administrator power up when changes are made to system security policy. The user must manually configure what action is taken if the computer cover is removed. Default is disabled. a set of processor code instructions from that allows user-level - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 82
Computer Setup Security (continued) Option Description Utilities Hard Drive Utilities ● Save/Restore GPT of System Hard Drive Enabling this feature saves the GUID only when at least one drive that supports the DriveLock feature is attached to the settings during a service event. Default is - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 83
NOTE: Support for specific Computer Setup options can vary, depending on the hardware configuration. Table 6-3 Computer Setup Advanced (for advanced users) Option Heading Display Language Lets you select the language of the menus in F10 Setup and the keyboard layout. Scheduled Power-On This - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 84
restart the computer and press esc (to access the Startup menu) and then f9 (Boot Menu), or only f9 (skipping the Startup menu) when the power button light the boot failure and asked to choose whether to start or cancel HP Sure Recover. This setting is displayed only if Recover after Boot Failure - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 85
Computer turning the computer off and requires turning the computer off and then back in (systems with supporting hardware for biometric M.2 slots. Default is enabled. Power Button Override (disable/4 sec/15 sec/30 sec) seconds you have to hold down the power button for it to force the system - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 86
Table 6-3 Computer Setup Advanced (for advanced users) (continued) Option Heading Provides ACPI structure to enable HP common software application framework. The driver is provided in the latest HP support software that you can download from the web. NOTE: Device Manager shows an alert if this - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 87
be off under the control of the desktop thermal sensor. Force enable HP Sure View Enables the HP Sure View privacy panel by changing the computer is in hibernate or shutdown mode. Default is enabled. USB Type-C Downstream Charging Lets you enable USB charging port capability when the computer - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 88
Table 6-3 Computer Setup Advanced (for advanced users) (continued) Option Heading Lets you enable specific serial ports. Default is enabled. Serial Port Voltage (Retail Point-of-Sale models only; ports vary by model) Lets you configure powered serial port voltage selection on RPOS units that - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 89
discover, repair, and protect networked computing devices. Default is enabled. USB Key Provisioning Support Enables AMT provisioning using a USB Timeout (min.) CIRA is Customer Initiated Remote Assistance, an Intel service to help users employing Active Management Technology (AMT). Default is 1. - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 90
requires PCI-Express will not function correctly. Native PCIe Hot Plug Enables hot plug support to the system PCI-Express bus. Remote HP PC Hardware Diagnostics Settings Sets the configuration for Remote HP PC Hardware Diagnostics, including the URLs used for download and upload and scheduled - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 91
Power-On Self-Test (POST) or computer restart, the probable source of the problem, manually switch to the POST Messages Enabled mode during POST, press any key (except f10, f11, or f12). The default mode is POST Message Disabled. The POST mode selection determines the speed at which the computer - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 92
option ROM. Recommended action section for instructions on installing a new battery. 1. Upgrade BIOS to proper version. 2. Change the processor. 1. Reboot the computer. 2. Unplug the power cord, reseat the memory modules, and reboot the computer. 3. If the memory configuration was recently - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 93
was recently changed, unplug the power cord, restore the original memory configuration, and reboot the computer. 4. If the error persists, added, remove it to see if the problem remains. 2. Check product documentation for memory support information. 2E6-Memory Not Configured Correctly for DIMM1 - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 94
are connected properly to power cables and system board. User Diagnostics (f2 during boot-up) might help identify any problem with specific devices. 301 Diagnostics when booting the computer. 2. Apply hard drive firmware patch if applicable. (Available at http://www.hp.com/support.) 3. Back up - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 95
Device in PCI Express Slot Failed To Initialize There is an incompatibility or problem with a PCIe device and the system or PCIe link could not be not supported and has been disabled. Replace with a supported module. 800-Keyboard Error Keyboard failure. 1. Reconnect keyboard with computer turned - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 96
or System Unit Error Keyboard failure. 1. Reconnect the keyboard with computer turned off. 2. Be sure that none of the keys are Power Supply Fan Not detected Power supply fan is not connected or might 1. have malfunctioned. 2. Reseat power supply fan. Reseat fan cable. 3. Replace power - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 97
code or text message associated with them. CAUTION: When the computer is plugged into an AC power source, voltage is always applied to the system board. To from electrical shock and/or hot surfaces, be sure to disconnect the power cord from the AC outlet and allow the internal system components to - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 98
Blink error code sequences continue until the computer is unplugged or the power button is pressed. NOTE: Not all . 3.4 The system board displays a power failure (crowbar).* 3.5 The processor is not detected.* 3.6 The processor does not support an enabled feature. Thermal 3.7 The access - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 99
8 Password security and resetting CMOS This computer supports two security password features that you can establish through the Computer Setup Utilities menu: administrator password and power-on password. When you establish only an administrator password, any user can access all the information on - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 100
the Setup password, go to step 2. To delete the Power-on password, go to step 3. 2. To delete the Setup password, as soon as the computer turns on: - Press esc while the "Press the ESC key for Startup Menu" message is displayed. - Press f10 to enter Computer Setup. 3. When the key icon appears, type - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 101
hp.com/support, select your country or region, and then follow the on-screen instructions. IMPORTANT: HP recommends that you follow the Restoring and recovery methods on page 95 to restore your computer before you obtain and use the HP desktop cannot load. 94 Chapter 9 Backing up, restoring, and - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 102
to obtain recovery discs. Go to http://www.hp.com/support, select your country or region, and then follow the on-screen instructions. To recover your system: ▲ Insert the HP Recovery media, and then restart the computer. NOTE: HP recommends that you follow the Restoring and recovery methods on - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 103
then follow the on-screen instructions. Using HP Sure Recover (select products only) Select computer models are configured with HP Sure Recover, a PC access the latest documentation for HP Sure Recover, go to http://www.hp.com/support. Follow the on-screen instructions to find your product and - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 104
it from HP Help and Support. 1. Select the Start button, and then select HP Help and Support. 2. Select HP PC Hardware Diagnostics Windows. 3. When the tool opens, select the type of diagnostic test that you want to run, and then follow the on-screen instructions. Using HP PC Hardware Diagnostics - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 105
1. Select the Search icon (select products only) from the taskbar, type support, and then select HP Support Assistant. - or - Select the question mark icon (select products only) in the taskbar. 2. Select Troubleshooting and fixes (select products only) or Fixes & Diagnostics. 3. Select Diagnostics - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 106
product name or number. 1. Go to http://www.hp.com/support. 2. Select Software and Drivers, select your type instructions. Using HP PC Hardware Diagnostics UEFI HP PC Hardware Diagnostics UEFI (Unified Extensible Firmware Interface) allows you to run diagnostic tests to determine whether the computer - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 107
screen. The HP Customer Support - Service Center page appears with your failure ID and product number automatically filled in. Follow the on-screen instructions. - or - Contact support, and provide the failure ID code. NOTE: To start diagnostics on a convertible computer, your computer must be in - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 108
by using the product name or number. 1. Go to http://www.hp.com/support. 2. Enter the product name or number, select your computer, and then select your operating system. 3. In the Diagnostics section, follow the on-screen instructions to select and download the specific UEFI Diagnostics version for - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 109
Diagnostics. ● Set the location for downloading the diagnostic tools. This feature provides access to the tools from the HP website or from a server that has been preconfigured for use. Your computer does not require the traditional local storage (such as a hard drive or USB flash drive) to run - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 110
off and the hard drive has been removed, use these instructions. HP business computer products that use Intel®-based or AMD®-based system boards system. Following system shutdown and removal of all power sources from an HP business computer system, personal data can remain on volatile system memory - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 111
Sensor. Press or tap f1 to accept or f2 to reject. l. Remove all power and system batteries for at least 24 hours. 2. Complete one of the following instructions to continue. - or - Clear the contents of the drive using the following Disk Sanitizer commands steps: i. Turn on or restart the computer, - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 112
to clear, and then follow the on-screen instructions to continue. NOTE: The amount of time it takes for Disk Sanitizer to run can take several hours. Plug the computer into an AC outlet before starting. Nonvolatile memory usage Use this table to troubleshoot nonvolatile memory usage. Table 11 - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 113
nonfunctional. entered using the Computer Setup (BIOS) or A utility must be used a custom utility. for writing data to this memory and is available on the HP website; go to http://www.hp.com/ support. Select Find your product, and then follow the on-screen instructions. Intel 1.5 MB or - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 114
and answer 7 for information about resetting the keys. a. Turn on or restart the computer, and then quickly press esc. b. Select Main, and then select Apply Factory Defaults and Exit. c. Follow the on-screen instructions. d. Select Main, select Save Changes and Exit, and then follow the on-screen - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 115
computer before an OS is loaded. BIOS provides a secure runtime environment that supports recovery software. HP has provided options in Computer Setup (BIOS) computer, and then quickly press esc. b. Select Main, and then select Reset Security to Factory Defaults. c. Follow the on-screen instructions - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 116
Clear Secure Boot Keys, and then follow the on-screen instructions to continue. Using HP Sure Start (select products only) Select computer models are configured with HP Sure Start, a technology that continuously monitors your computer's BIOS for attacks or corruption. If the BIOS becomes corrupted - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 117
sets for use in other countries must meet the requirements of the country where you use the computer. General requirements These requirements are applicable to all countries. 1. The power cord must be approved by an acceptable accredited agency responsible for evaluation in the country where the - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 118
Kingdom (1) BSI France (1) UTE United States (2) UL Germany (1) VDE 1. The flexible cord must be Type HO5VV-F, 3-conductor, 0.75mm2 conductor size. Power cord set fittings (appliance coupler and plug) must bear the certification mark of the agency responsible for evaluation in the country - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 119
Specifications This section provides specifications for your computer. Table 13-1 Specifications Metric U.S. W, 92% efficient 180 W, 90% efficient 1 This system uses an active power factor-corrected power supply. This allows the system to pass the CE mark requirements for use in the - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 120
14 CMOS clearing and resetting 92 computer cleaning 10, 13, 15 computer major components 5 Computer Setup access problem 49 Advanced menu 76 Main menu 68 Security menu 71 Computer Setup Utility 67 country power cord set requirements 110 Customer Support 48 D deleting a Power-On password 92 deleting - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 121
92 POST error messages 84 power button 2 power connector 3 power cord set requirements country specific 110 power problems 53 power supply illustrated 6 operating voltage range 112 removal and replacement 43 Power-On password 92 printer problems 57 problems audio 56 Computer Setup 49 F10 Setup 49 - HP Pro Tower 400 G9 PCI Desktop PC | Maintenance and Service Guide - Page 122
T temperature control 10, 13 tools, servicing 10, 16 Torx T15 screwdriver 10, 16 troubleshooting without diagnostics 48 U USB port 3 USB SuperSpeed 10 Gbps port 2 USB SuperSpeed 5 Gbps port 3 USB Type-C 10 Gbps port with HP Sleep and Charge 2 using Computer Setup Utilities 67 V ventilation, proper
Maintenance and Service Guide
SUMMARY
This guide provides information about spare parts, removal and replacement of parts, security, backing up, and more.