HP ProDesk 400 G2 Small Form Factor PC (ENERGY STAR) Manuel d'utilisateur

Maintenance and Service GuideHP ProDesk 400 G2 Small Form Factor

Front panel componentsDrive configuration may vary by model. Some models have a bezel blank covering one or more drive bays.1 Slim Optical Drive (opti

Table 6-1 Solving Hardware Installation Problems (continued)A new device is not recognized as part of the system.Cause SolutionTo access Device Manag

Power LED flashes Red six times, once every second, followed by a two second pause, and the computer beeps six times. (Beepsstop after fifth iteration

Table 6-2 Solving Network Problems (continued)Wake-on-LAN feature is not functioning.Cause Solution1. From the Start screen, type c, and then select

Table 6-2 Solving Network Problems (continued)Network status link light never flashes.NOTE: The network status light is supposed to flash when there

Network controller stopped working when an expansion board was added to the computer.Cause SolutionNetwork controller interrupt is shared with an expa

Solving memory problemsIf you encounter memory problems, some common causes and solutions are listed in the following table.CAUTION: Power may still b

Power LED flashes Red five times, once every second, followed by a two second pause, and the computer beeps five times. (Beepsstop after fifth iterati

Solving CD-ROM and DVD problemsIf you encounter CD-ROM or DVD problems, see the common causes and solutions listed in the followingtable or to the doc

Movie will not play in the DVD drive.Cause SolutionDecoder software is not installed. Install decoder software.Damaged media. Replace media.Movie rati

Solving USB flash drive problemsIf you encounter USB flash drive problems, common causes and solutions are listed in the following table.USB flash dri

Rear panel components1 PS/2 Mouse Connector (green) 6 Power Cord Connector2RJ-45 Network Connector 7 PS/2 Keyboard Connector (purple)3Serial Connect

A USB device, headphone, or microphone is not recognized by the computer.Cause SolutionThe correct device driver is not installed. 1. Install the corr

Unable to connect to the Internet.Cause Solution4. Select the Cookies check box and click the Delete button.Cannot automatically launch Internet progr

Computer will not continue after HP logo screen displays.Cause SolutionTo access Automatic Repair:1. Press the Windows logo + l to open the Settings c

7 POST error messagesThis appendix lists the error codes, error messages, and the various indicator light and audible sequencesthat you may encounter

Control panel message Description Recommended action2. In Computer Setup, set Advanced >Device Options > NIC PXE Option ROMDownload to DISABLE t

Control panel message Description Recommended action219-ECC Memory Module Detected ECCModules not supported on this PlatformRecently added memory modu

Control panel message Description Recommended action515-Power Supply fan not detected Power supply fan is not connected or may havemalfunctioned.1. Re

Control panel message Description Recommended action1720-SMART Hard Drive Detects ImminentFailureHard drive is about to fail. (Some hard driveshave a

Control panel message Description Recommended action3. If the memory configuration was recentlychanged, unplug the power cord, restorethe original mem

Control panel message Description Recommended action2219-USB Key Provisioning file has invalidheader identifierProvisioning file contained on the USB

Serial number locationEach computer has a unique serial number and a product ID number that are located on the exterior of thecomputer. Keep these num

Control panel message Description Recommended actionInvalid Electronic Serial Number Electronic serial number is missing. Enter the correct serial num

Activity Beeps Possible cause Recommended actionRed Power LED flashes fourtimes, once every second,followed by a two second pause.Beeps stop after fif

Activity Beeps Possible cause Recommended action3. Replace the system board.4. Replace the processor.Red Power LED flashes tentimes, once every second

8 Password security and resetting CMOSThis computer supports security password features, which can be established through the Computer SetupUtilities

1. Shut down the operating system properly, then turn off the computer and any external devices, anddisconnect the power cord from the power outlet.2.

1. Turn off the computer and any external devices, and disconnect the power cord from the power outlet.2. Disconnect the keyboard, monitor, and any ot

9 HP PC Hardware DiagnosticsTo help troubleshoot and diagnose failures, use the UEFI-based hardware diagnostic solution that HPincludes on all product

1. Go to http://www.hp.com.2. Point to Support, located at the top of the page, and then click Download Drivers.3. In the text box, enter the product

10 System backup and recoveryBacking up, restoring, and recovering in Windows 8.1 orWindows 8Your computer includes tools provided by HP and Windows t

Using Reset when the system is not respondingNOTE: You may be prompted by User Account Control for your permission or password when you performcertain

2 Illustrated parts catalogComputer major componentsThis chapter provides part information for all chassis.Item Description(1) Front bezel(2) Access p

Recovery using Windows operating system media (purchased separately)To order a Windows operating system DVD, contact support. Go to http://www.hp.com/

1. After you successfully set up the computer, create recovery media. This media can be used to reinstallthe original operating system in cases where

NOTE: Do not use media cards for creating recovery media. The system may not be able to boot up from amedia card and you may not be able to run system

1. Select Start > All Programs > Productivity and Tools > HP Recovery Disc Creator.2. Select Windows disk.3. From the drop-down menu, select

1. Close all open programs.2. Click the Start button, right-click Computer, and then click Properties.3. Click System protection, System Restore, clic

6. Under I need help immediately, click System Recovery.7. Select Yes, and then click Next. Your computer restarts.8. When the computer restarts, you

6. If Recovery Manager asks if you want to run System Recovery from Media or Hard Drive, select Media.On the Welcome screen, under I need help immedia

After the repair is completed:1. Eject the Windows 7 operating system DVD and then insert the Driver Recovery DVD.2. Follow the on-screen instructions

A Battery replacementThe battery that comes with the computer provides power to the real-time clock. When replacing the battery,use a battery equivale

b. Slide the replacement battery into position, positive side up. The battery holder automaticallysecures the battery in the proper position.Type 2a.

Item Description(4) System board (includes replacement thermal material) For use in models without Windows 8 For use in models with Windows 8 Standa

NOTE: After the battery has been replaced, use the following steps to complete this procedure.8. Replace the access panel.9. Plug in the computer and

B Statement of VolatilityHP confirms that Intel-based business desktop HP ProDesk 400 G2 Small Form Factor systems contain DDR3volatile memory (memory

10. To clear the Setup or Power-On passwords if set, and clear any other settings, power down thecomputer and remove the AC power cord and the compute

C Power cord set requirementsThe power supplies on some computers have external power switches. The voltage select switch feature onthe computer permi

Country-specific requirementsAdditional requirements specific to a country are shown in parentheses and explained below.Country Accrediting Agency C

D SpecificationsChassis (in the desktop position)HeightWidthDepth3.93 in13.26 in14.98 in100 mm33.7 cm380 mmApproximate Weight 13.0 lb 5.9 kgWeight Sup

IndexAaccess panelillustrated 5locked 75removal and replacement 20audible codes 112audio problems 86Bbackup and recovery, Windows 7122Backup and Resto

Kkeyboardcleaning 15keyboard problems 89LLEDsblinking PS/2 keyboard 112locksfront bezel 22Mmedia card readerinstallation 35problems 81removal 34memory

speakerillustrated 8removal and replacement 53specificationscomputer 137memory 24static electricity 12system boardillustrated 6removal and replacement

Item Description Intel Pentium G3450 (3.4-GHz, 3-MB L3 cache), 54W Intel Pentium G3440 (3.3-GHz, 3-MB L3 cache), 54W Intel Pentium G3430 (3.3-GHz,

Misc partsItem Description(1) Fan sink (includes replacement thermal material)(2) Speaker(3) Printer port, PCI card(4) Fan duct(5) Serial port, PCI ca

Item Description Mouse PS2, optical USB, HP Elite Washable HP USB Antimicrobial USB, optical Keyboard PS/2 USB Wireless, HP Elite with USB dongle

Description128-GB Solid-state Drive (SSD), self-encrypting (SED)120-GB Solid-state Drive (SSD), MLC32-GB Solid-state Drive (SSD), 2.5 inch, MLCOptical

3 Routine care, SATA drive guidelines, anddisassembly preparationThis chapter provides general service information for the computer. Adherence to the

© Copyright 2014 Hewlett-PackardDevelopment Company, L.P. The informationcontained herein is subject to change withoutnotice.Microsoft and Windows are

Generating staticThe following table shows that:●Different activities generate different amounts of static electricity.●Static electricity increases a

●Heel straps/Toe straps/Boot straps can be used at standing workstations and are compatible withmost types of shoes or boots. On conductive floors or

●Transparent metallized shielding bags●Transparent shielding tubesOperating guidelinesTo prevent overheating and to help prolong the life of the compu

To clean the computer case, follow the procedures described below:●To remove light stains or dirt, use plain water with a clean, lint-free cloth or sw

Service considerationsListed below are some of the considerations that you should keep in mind during the disassembly andassembly of the computer.Powe

Hard DrivesHandle hard drives as delicate, precision components, avoiding all physical shock and vibration. This appliesto failed drives as well as re

SATA hard drive cablesSATA data cableAlways use an HP approved SATA 6.0 Gb/s cable as it is fully backwards compatible with the SATA 1.5 Gb/sdrives.Cu

4 Removal and replacement procedures:Small Form FactorAdherence to the procedures and precautions described in this chapter is essential for proper se

Access panel1. Prepare the computer for disassembly (Preparation for disassembly on page 19).2. Loosen the thumbscrew on the rear of the computer (1)

Front bezel1. Prepare the computer for disassembly (Preparation for disassembly on page 19).2. Remove the access panel (Access panel on page 20).3. Li

About This BookWARNING! Text set off in this manner indicates that failure to follow directions could result in bodily harmor loss of life.CAUTION: Te

Front bezel securityThe front bezel can be locked in place by installing a security screw provided by HP. To install the securityscrew:1. Prepare the

Bezel blanksOn some models, there are bezel blanks covering the 3.5-inch and 5.25-inch external drive bays that need tobe removed before installing a

MemoryDescription8-GB, PC3-128004-GB, PC3-128002-GB, PC3-12800The computer comes with double data rate 3 synchronous dynamic random access memory (DDR

Populating DIMM socketsThere are two DIMM sockets on the system board, with one socket per channel. The sockets are labeledDIMM1 and DIMM3. Socket DIM

4. Open both latches of the memory module socket (1), and insert the memory module into the socket (2).NOTE: A memory module can be installed in only

Expansion cardDescriptionNvidia NVS310 PCIe x16 graphics card, 512 MBNvidia NVS315 PCIe x16 graphics card, 1 GBAMD Radeon HD8490 DP PCIe x16 graphics

NOTE: Before removing an installed expansion card, disconnect any cables that may be attached tothe expansion card.a. If you are installing an expansi

c. If you are removing a PCI Express x16 card, pull the retention arm on the back of the expansionsocket away from the card and carefully rock the car

8. To install a new expansion card, hold the card just above the expansion socket on the system boardthen move the card toward the rear of the chassis

No. System Board Connector System Board Label Color Component1 PCI Express x1 X1PCIEXP3 black Expansion Card2 PCI Express x1 X1PCIEXP2 black Expansion

iv About This Book

DrivesDescriptionHard drive2 TB, 7200 rpm, 3.5 inch1 TB, 10000 rpm1 TB, 7200 rpm, 3.5 inch1 TB hard drive, hybrid SSD500 GB, 10000 rpm500 GB, 7200 rpm

dual-headed cable with the first connector routed to the 3.5-inch hard drive bay and the secondconnector routed to the 2.5-inch hard drive bay.●You mu

Drive positions1 Slim optical drive bay2 3.5-inch internal hard drive bay3 3.5-inch drive bay for optional drives (media card reader shown)4 2.5-inch

5. Disconnect the drive cables from the rear of the drive, or, if you are removing a media card reader,disconnect the USB cable from the system board

4. Install 6-32 guide screws in the holes on each side of the device.NOTE: HP has supplied four extra 6-32 guide screws on top of the drive cage. Refe

6. Slide the device into the drive bay, making sure to align the guide screws with the guide slots, until thedevice snaps into place.7. If installing

Removing a slim optical driveCAUTION: All removable media should be taken out of a drive before removing the drive from thecomputer.1. Prepare the com

Installing a slim optical drive1. Prepare the computer for disassembly (Preparation for disassembly on page 19).2. If the computer is on a stand, remo

6. Slide the optical drive through the front bezel all the way into the bay so that it locks in place (1), thenconnect the power and data cables to th

5. Pull the release lever next to the rear of the hard drive outward (1). While pulling the release lever out,slide the drive back until it stops, the

Table of contents1 Product features ...

7. Align the guide screws with the slots on the chassis drive cage, press the hard drive down into the bay,then slide it forward until it stops and lo

Removing a 2.5-inch hard drive1. Prepare the computer for disassembly (Preparation for disassembly on page 19).2. Remove the access panel (Access pane

4. Install four black and blue M3 isolation mounting guide screws (two on each side of the drive).NOTE: M3 metric isolation mounting guide screws can

Power supplyDescriptionPower supply, 240W, 85% efficientPower supply, 240W, standardWARNING! To reduce potential safety issues, only the power supply

6. From the outside, rear of the computer, remove the three Torx screws that secure the power supply tothe rear of the chassis.7. From the inside of t

Fan ductThe fan duct sits between the front fan and the heat sink.1. Prepare the computer for disassembly (Preparation for disassembly on page 19).2.

Front I/O assembly1. Prepare the computer for disassembly (Preparation for disassembly on page 19).2. Remove the access panel (Access panel on page 20

7. Remove the cables from the cable clips under the drive cage.8. Remove the Torx T15 screw (1) that secures the assembly to the front of the chassis.

9. Press the tab on the right side of the assembly (2) to disengage it from the chassis.10. Push the assembly into the chassis, and then remove it fro

Power switch assembly1. Prepare the computer for disassembly (Preparation for disassembly on page 19).2. Remove the access panel (Access panel on page

SATA data cable ... 18SM

7. From the inside of the chassis, press down on the tab on the top of the power switch to disengage thepower switch from the chassis.8. Pull the powe

SpeakerThe speaker is attached to the front of the chassis under the rotating drive cage.1. Prepare the computer for disassembly (Preparation for disa

7. Lift the speaker from the inside of the chassis to remove it.To install the speaker, reverse the removal procedures.54 Chapter 4 Removal and repl

Fan sinkThe fan sink is secured atop the processor with four captive Torx screws. The fan sink includes a heat sinkand a fan.1. Prepare the computer f

5. Disconnect the fan cable from the system board connector labeled CPUFAN (1), and then lift the heatsink from atop the processor (2).When reinstalli

ProcessorDescriptionIntel Core i7 4790 (3.6-GHz, 8-MB L3 cache), 84WIntel Core i7 4790s (3.2-GHz, 8-MB L3 cache), 65WIntel Core i7 4771 (3.5-GHz, 8-MB

DescriptionIntel Celeron G1850 (2.9-GHz, 2-MB L3 cache)Intel Celeron G1840 (2.8-GHz, 2-MB L3 cache)1. Prepare the computer for disassembly (Preparatio

System boardDescriptionSystem board for use in models without Windows 8 (includes thermal material)System board for use in models with Windows 8 Stand

To install the system board, reverse the removal procedure.NOTE: When replacing the system board, you must also change the chassis serial number in th

5 Computer Setup (F10) UtilityComputer Setup (F10) UtilitiesUse Computer Setup (F10) Utility to do the following:●Change factory default settings.●Set

Computer Setup—Security ... 65Computer Set

Using Computer Setup (F10) UtilitiesComputer Setup can be accessed only by turning the computer on or restarting the system. To access theComputer Set

Computer Setup—FileNOTE: Support for specific Computer Setup options may vary depending on the hardware configuration.Table 5-1 Computer Setup—FileOp

Computer Setup—StorageNOTE: Support for specific Computer Setup options may vary depending on the hardware configuration.Table 5-2 Computer Setup—Sto

Table 5-2 Computer Setup—Storage (continued)NOTE: MS-DOS drive lettering assignments may not apply after a non-MS-DOS operating system hasstarted.Sho

Table 5-3 Computer Setup—Security (continued)Device Security Allows you to set Device Available/Device Hidden (default is Device Available) for:●Embe

Table 5-3 Computer Setup—Security (continued)CAUTION: Restoring a previously saved MBR after a disk utility or operating system has modified theMBR,

Table 5-3 Computer Setup—Security (continued)DriveLock Security Allows you to assign or modify a master or user password for hard drives. When this f

Table 5-4 Computer Setup—Power (continued)◦S4 (Hibernation)= 4 blinks at 1Hz (50% duty cycle) followed by a pause of 2 seconds (whiteLED) — repeated

Table 5-5 Computer Setup—Advanced (for advanced users) (continued)◦Previous state—causes the computer to power on automatically as soon as power is r

Table 5-5 Computer Setup—Advanced (for advanced users) (continued)●Multi-Processor (enable/disable). Use this option to disable multi-processor suppo

10 System backup and recovery ... 12

6 Troubleshooting without diagnosticsThis chapter provides information on how to identify and correct minor problems, such as USB devices, harddrive,

If it becomes necessary to call for technical assistance, be prepared to do the following to ensure that yourservice call is handled properly:●Be in f

●If you have installed an operating system other than the factory-installed operating system, check to besure that it is supported on the system.●If t

Computer date and time display is incorrect.Cause SolutionTo access Control Panel in Windows 7, select Start, and thenselect Control Panel.To access C

Poor performance.Cause Solution3. Make sure the processor heat sink is installed properly.Hard drive is full. Transfer data from the hard drive to cre

Computer powered off automatically and the Power LED flashes Red two times, once every second, followed by a two secondpause, and the computer beeps t

Solving power problemsCommon causes and solutions for power problems are listed in the following table.Power supply shuts down intermittently.Cause So

Solving hard drive problemsHard drive error occurs.Cause SolutionHard disk has bad sectors or has failed. 1. In Windows 7, click Start, click Computer

Nonsystem disk/NTLDR missing message.Cause SolutionThe system is trying to start from the hard drive but the harddrive may have been damaged.▲Perform

Solving media card reader problemsMedia card will not work in a digital camera after formatting it in Windows.Cause SolutionBy default, Windows will f

1 Product featuresStandard configuration featuresFeatures may vary depending on the model. For a complete listing of the hardware and software install

Do not know how to remove a media card correctly.Cause SolutionNOTE: Never remove the card when the green LED is flashingAfter installing the media ca

Blank screen (no video).Cause SolutionMonitor cable is plugged into the wrong connector. Systems may have a monitor connection on both themotherboard

Blank screen and the power LED flashes Red seven times, once every second, followed by a two second pause, and the computerbeeps seven times. (Beeps s

Image is not centered.Cause SolutionPosition may need adjustment. Press the monitor's Menu button to access the OSD menu. SelectImageControl/ Hor

High pitched noise coming from inside a flat panel monitor.Cause SolutionBrightness and/or contrast settings are too high. Lower brightness and/or con

Sound does not come out of the speaker or headphones.Cause SolutionSoftware volume control is turned down or muted. Double-click the Speaker icon on t

Computer appears to be locked up while recording audio.Cause SolutionThe hard disk may be full. Before recording, make sure there is enough free space

Printer will not print.Cause SolutionIf you are on a network, you may not have made the connectionto the printer.Make the proper network connections t

Keyboard commands and typing are not recognized by the computer.Cause SolutionKeyboard connector is not properly connected. Shut down the computer, re

Mouse does not respond to movement or is too slow.Cause SolutionMouse may need repair. See the Worldwide Limited Warranty for terms and conditions.Com