HP EliteDesk 705 G4 Small Form Factor PC User Manual Page 1

Maintenance and Service GuideHP EliteDesk 705 G4 Small Form Factor Business PC

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Network driver does not detect network controller.Cause SolutionNetwork controller is disabled. 1. Run Computer Setup and enable network controller.2.

Diagnostics passes, but the computer does not communicate with the network.Cause SolutionNetwork drivers are not loaded, or driver parameters do not m

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 ashes Red ve times, once every second, followed by a two second pause, and the computer beeps ve times. (Beeps stop after fth iteration

CD-ROM or DVD devices are not detected or driver is not loaded.Cause SolutionDrive is not connected properly or not properly congured. See the docume

Recording or copying CDs is dicult or impossible.Cause SolutionWrong or poor quality media type. 1. Try using a slower speed when recording.2. Verify

Solving front panel component problemsIf you encounter problems with devices connected to the front panel, refer to the common causes and solutions li

Unable to connect to the Internet.Cause Solution2. Click Internet Options.3. In the Browsing history section, click the Delete button.4. Select the Co

7 POST error messages and diagnostic front panel LEDs and audible codesThis appendix lists the error codes, error messages, and the various indicator

Control panel message Description Recommended actionRTC (real-time clock) battery may need to be replaced.problem persists, replace the RTC battery. S

1 Product featuresStandard conguration featuresFeatures may vary depending on the model. For support assistance and to learn more about the hardware

Control panel message Description Recommended action00E-Inventory Error during MEBx Execution BIOS information passed to the MEBx resulted in a failur

Control panel message Description Recommended action3. Back up contents and replace hard drive.302-Hard Disk 2: SMART Hard Drive Detects Imminent Fail

Control panel message Description Recommended action3. Recongure card resources and/or run Computer Setup or Windows utilities.419-Out of Memory Spac

Control panel message Description Recommended action90B-Fan Failure The system has detected that a cooling fan is not operating correctly.1. Reseat fa

Number of long beeps/blinks Error category4 Thermal5 System boardPatterns of blink/beep codes are determined by using the following parameters:●1 seco

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

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

Clearing and resetting the BIOSThe CMOS button resets BIOS settings to default, but does not clear the passwords or aect any of the other Security se

9 Using HP PC Hardware DiagnosticsUsing HP PC Hardware Diagnostics Windows (select products only)HP PC Hardware Diagnostics Windows is a Windows-based

Downloading the latest HP PC Hardware Diagnostics Windows versionTo download HP PC Hardware Diagnostics Windows, follow these steps:1. Go to http://ww

Front panel componentsDrive conguration may vary by model. Some models have a bezel blank covering the slim optical drive bay.Front panel components1

Starting HP PC Hardware Diagnostics UEFITo start HP PC Hardware Diagnostics UEFI, follow these steps:1. Turn on or restart the computer, and quickly p

Using Remote HP PC Hardware Diagnostics UEFI settings (select products only)Remote HP PC Hardware Diagnostics UEFI is a rmware (BIOS) feature that do

3. Make your customization selections.4. Select Main, and then Save Changes and Exit to save your settings.Your changes take eect when the computer r

10 Backing up, restoring, and recoveringThis chapter provides information about the following processes, which are standard procedure for most product

On select products, you can use the HP Cloud Recovery Download Tool to create HP Recovery media on a bootable USB ash drive. For more information, se

Using the HP Cloud Recovery Download Tool to create recovery media To create HP Recovery media using the HP Cloud Recovery Download Tool:1. Go to http

IMPORTANT: Recovery through HP Recovery Manager should be used as a nal attempt to correct computer issues.NOTE: When you start the recovery process,

NOTE: If your computer does not automatically restart in HP Recovery Manager, change the computer boot order, and then follow the on-screen instructio

A Battery replacementThe battery installed on the computer provides power to the real-time clock. When replacing the battery, use a battery equivalent

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

Rear panel componentsRear panel components1 Audio-in jack 6 Optional port2 Serial port (optional) 7 USB 2.0 ports with wake from S4 (2)3 RJ-45 (netw

b. To insert the new battery, slide one edge of the replacement battery under the holder’s lip with the positive side up (1). Push the other edge down

10. Reset the date and time, your passwords, and any special system setups using Computer Setup.11. Lock any security devices that were disengaged whe

B Power Cord Set RequirementsThe power supplies on some computers have external power switches. The voltage select switch feature on the computer perm

Country-Specic RequirementsAdditional requirements specic to a country are shown in parentheses and explained below.Country Accrediting Agency Cou

C Statement of memory volatilityThe purpose of this chapter is to provide general information regarding nonvolatile memory in HP Business computers. T

g. If a DriveLock password is set, select the Security menu, and scroll down to Hard Drive Utilities under the Utilities menu. Select Hard Drive Utili

Nonvolatile memory usageNonvolatile Memory Type Amount (Size)Does this memory store customer data?Does this memory retain data when power is removed?W

Nonvolatile Memory Type Amount (Size)Does this memory store customer data?Does this memory retain data when power is removed?What is the purpose of th

Questions and answers1. How can the BIOS settings be restored (returned to factory settings)?IMPORTANT: Restore defaults does not securely erase any d

IMPORTANT: Resetting will result in the loss of information.These steps will not reset Custom Secure Boot Keys. See question and answer 7 for informat

2 Illustrated parts catalogComputer major componentsItem Description(1) System board (includes replacement thermal material) For use in models with A

D SpecicationsItem Metric U.S.Dimensions Width 3.94 in 100 mmDepth 13.3 in 338 mmHeight 12.13 in 308 mmWeight 19.82 lb 9.00 kgMax supported weight

IndexAaccess panelillustrated 4locked 73removal and replacement 18administrator password 105antenna coverillustrated 5antennasdisconnecting 43removal

HP Sure Start 129Iinstallingbattery 118drive cables 31dust lter 21expansion card 27M.2 SSD card 38memory 24secondary 3.5-inch hard drive35slim optica

secondary 3.5-inch hard drive34slim optical drive 32removing personal data from volatile system memory 124resettingCMOS 105password jumper 105restorin

Item Description AMD A6-9500 AMD Ryzen 5 PRO 2400G AMD Ryzen 3 PRO 2200G(9) Memory modules (UDIMM, PC4-2666,NECC) 16-GB 8-GB 4-GB(10) Speaker(11

Cables and adaptersItem Description(1) SATA drive power cable(2) SATA data cable, 5.7 inch, 2 straight endsd SATA data cable, 7.5 inch, 2 straight en

Description500 GB, 5400 rpm, hybrid SSD drive, 7 mm500 GB, 7200 rpm hard drive, self-encrypting (SED), Opal 2, 7 mm500 GB, 7200 rpm, 7 mm500 GB, 7200

DescriptionUSB, opticalPS/2, opticalUSB, laserHP USB PremiumUSB/PS2 washableKeyboardsWashable, USB PS2USB, unbrandedUSBUSB, essentialConferencingUSB,

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

© Copyright 2018 HP Development Company, L.P.AMD is a trademark of Advanced Micro Devices, Inc. Bluetooth is a trademark owned by its proprietor and u

Preventing electrostatic damage to equipmentMany electronic components are sensitive to ESD. Circuitry design and structure determine the degree of se

Recommended materials and equipmentMaterials and equipment that are recommended for use in preventing static electricity include:●Antistatic tape●Anti

●Never cover the ventilation slots on the monitor with any type of material.●Install or enable power management functions of the operating system or o

●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: Metric screws have a black nish. U.S. screws have a silver nish and are used on hard drives only.CAUTION: As each subassembly is removed fr

SATA hard drivesSerial ATA Hard Drive CharacteristicsNumber of pins/conductors in data cable 7/7Number of pins in power cable 15Maximum data cable len

Cable managementAlways follow good cable management practices when working inside the computer.●Keep cables away from major heat sources like the heat

4 Removal and replacement proceduresAdherence to the procedures and precautions described in this chapter is essential for proper service. After compl

Access panel1. Prepare the computer for disassembly (Preparation for disassembly on page 17).2. Slide the access panel release lever to the right (1)

Front bezel1. Prepare the computer for disassembly (Preparation for disassembly on page 17).2. Remove the access panel (Access panel on page 18).3. Li

Safety warning noticeWARNING! To reduce the possibility of heat-related injuries or of overheating the device, do not place the device directly on you

Slim optical drive bezel blankOn some models, there is a bezel blank covering the slim optical drive bay. Remove the bezel blank before installing an

Front bezel dust lterSome models are equipped with an optional front bezel dust lter. You must periodically clean the dust lter so that the dust co

Drive cageYou must remove the drive cage to access the components underneath.1. Prepare the computer for disassembly (Preparation for disassembly on p

System board connectionsRefer to the following illustration and table to identify the system board connectors for your model.Item System board connect

MemoryThe computer comes with double data rate 4 synchronous dynamic random access memory (DDR4-SDRAM) dual inline memory modules (DIMMs).The memory s

DIMM and one 1 GB DIMM, and Channel B should be populated with the other two 1 GB DIMMs. With this conguration, 4 GB will run as dual-channel and 1 G

5. To remove a memory module, open both latches of the memory module socket (1), and then remove the memory module from the socket (2).6. To install a

Expansion cardFor a list of available expansion cards, see Computer major components on page 4.The computer has one PCI Express x1 expansion socket an

b. If you are removing a PCI Express x1 card, hold the card at each end and carefully rock it back and forth until the connectors pull free from the s

c. If you are removing a PCI Express x16 card, pull the retention arm on the back of the expansion socket away from the card (1) and carefully rock th

iv Safety warning notice

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

DrivesFor a list of available drives, see Drives on page 6.Drive positionsDrive positions1 3.5-inch hard drive bay2 9.5 mm slim optical drive bayNOTE:

Removing a 9.5 mm slim optical driveCAUTION: All removable media should be taken out of a drive before removing the drive from the computer.1. Prepare

Installing a 9.5 mm slim optical drive1. Prepare the computer for disassembly (Preparation for disassembly on page 17).2. Remove the access panel (Acc

6. Connect the power cable and data cable to the rear of the drive.7. Connect the opposite end of the data cable to one of the light-blue SATA connect

4. Pull the release lever next to the rear of the hard drive outward (1). While pulling the release lever out, slide the drive back and lift it out of

●You can also install a 2.5-inch hard drive into a 3.5-inch drive bay using an adapter bracket similar to the example shown below.–Slide the 2.5-inch

–Secure the drive to the bay adapter bracket by installing four black M3 adapter bracket screws through the underside of the bracket and into the driv

4. Align the mounting screws with the slots on the drive cage. Lower the drive into the drive cage, and then slide it back to secure it in place.5. Co

5. To remove an M.2 SSD card, remove the screw that secures the card (1), lift the end of the card up (2), and then slide the card out of the system b

Table of contents1 Product features ...

FanThe fan is secured to the top of the heat sink with three Phillips screws. The fan and heat sink are spared separately.1. Prepare the computer for

Heat sinkCAUTION: The bond between the heat sink and the processor may be very tight. If the computer will power on, before removing the heat sink, tu

ProcessorFor a list of available processors, see Computer major components on page 4.1. Prepare the computer for disassembly (Preparation for disassem

WLAN moduleThe WLAN module installs into a connector on the system board.For a list of available WLAN modules, see Computer major components on page 4

Power supplyWARNING! To reduce potential safety issues, only the power supply provided with the computer, a replacement power supply provided by HP, o

6. Push the release lever at the front of the power supply (4), slide the power supply forward, and then remove it from the chassis (5).To install the

Option port boardFor a list of available option port boards, see Computer major components on page 4.An option port board can be installed under the h

Hood sensorThe hood sensor is attached to the rear of the chassis.1. Prepare the computer for disassembly (Preparation for disassembly on page 17).2.

Card readerThe card reader is attached to the front of the computer.1. Prepare the computer for disassembly (Preparation for disassembly on page 17).2

SpeakerThe speaker is attached to the front of the rotating drive cage.1. Prepare the computer for disassembly (Preparation for disassembly on page 17

SMART ATA drives ...

AntennasThe antennas route from the WLAN module to the front and the rear of the computer.1. Prepare the computer for disassembly (Preparation for dis

9. On the inside of the chassis, remove the rear antenna cable from the routing path in the chassis wall.10. On the rear of the computer, press the ta

11. Remove the Phillips screw (1), peel the antenna o the computer, and then pull the cable through the hole in the chassis (2).Reverse the removal p

System boardNOTE: All system board spare part kits include replacement thermal material.1. Prepare the computer for disassembly (Preparation for disas

9. Remove the eight Torx T15 screws that secure the system board to the chassis.10. Slide the system board toward the front of the computer to disenga

System board calloutsSys Bd Label Color Component Sys Bd Label Color ComponentPWRCPU White 4-pin processor power PWR White 6-pin main powerPROCESS

Changing from desktop to tower orientationThe Small Form Factor computer can be used in a tower orientation with an optional tower stand that can be p

5 Computer Setup (F10) UtilityComputer Setup (F10) UtilitiesUse Computer Setup (F10) Utility to do the following:●Change settings from the defaults or

4. Use the arrow (left and right) keys to select the appropriate heading. Use the arrow (up and down) keys to select the option you want, then press E

Computer Setup–MainNOTE: Support for specic Computer Setup options may vary depending on the hardware conguration.Table 5-1 Computer Setup—MainOpti

Computer Setup—Security ... 61Computer Se

Table 5-1 Computer Setup—Main (continued)Option Description●Hardware subsystem tests●Component tests●Show test logs●Language selectionUpdate System B

Table 5-1 Computer Setup—Main (continued)Option DescriptionApply Factory Defaults and ExitRestores the factory system conguration settings to the co

Table 5-2 Computer Setup—Security (continued)Option DescriptionDisplays the current TPM version.●TPM DeviceLets you set the Trusted Platform Module a

Table 5-2 Computer Setup—Security (continued)Option DescriptionNOTE: Notify user alerts the user with a POST error on the rst boot after the sensor

Table 5-2 Computer Setup—Security (continued)Option DescriptionSet DriveLock Master Password. Sets the drive’s master password but does not enable Dr

Table 5-3 Computer Setup—Advanced (for advanced users) (continued)Option Heading●UEFI Boot Order.Default is enabled. Specify the order in which UEFI

Table 5-3 Computer Setup—Advanced (for advanced users) (continued)Option HeadingControls virtualization DMA remapping features of the chipset. Changi

Table 5-3 Computer Setup—Advanced (for advanced users) (continued)Option HeadingNOTE: Serial Port A and/or Serial Port B settings are available depen

Table 5-3 Computer Setup—Advanced (for advanced users) (continued)Option HeadingEnables or disables SATA bus and/or device power management. Default

Table 5-3 Computer Setup—Advanced (for advanced users) (continued)Option HeadingCIRA is Customer Initiated Remote Assistance, an Intel service to hel

Installing HP PC Hardware Diagnostics Windows ... 109Using HP PC Hardware Diag

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

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

●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

Computer date and time display is incorrect.Cause SolutionRTC (real-time clock) battery may need to be replaced.NOTE: Connecting the computer to a liv

Poor performance.Cause SolutionHard drive fragmented. Defragment hard drive.Program previously accessed did not release reserved memory back to the sy

System does not power on and the LEDs on the front of the computer are not ashing.Cause Solution1. If equipped with a voltage selector, check that th

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 10, type file in the taskbar s

Nonsystem disk/NTLDR missing message.Cause Solutionthe File Backup Program option, and then restore the system.3. Install system les for the appropri

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

Using HP Sure Start (select models only) ... 12

After installing the media card reader and booting to Windows, the reader and the inserted cards are not recognized by the computer.Cause SolutionThe

Blank screen (no video).Cause SolutionTo access Control Panel in Windows 10, type control panel in the taskbar search box, and then select Control Pan

Dim characters.Cause SolutionThe brightness and contrast controls are not set properly. Adjust the monitor brightness and contrast controls.Cables are

“Out of Range” displays on screen.Cause SolutionVideo resolution and refresh rate are set higher than what the monitor supports.Restart the computer a

Solving audio problemsIf the computer has audio features and you encounter audio problems, see the common causes and solutions listed in the following

Sound does not come out of the speaker or headphones.Cause SolutionSome applications can select which audio output device is used. Make sure the appli

Solving printer problemsIf you encounter printer problems, see the documentation that came with the printer and to the common causes and solutions lis

Solving keyboard and mouse problemsIf you encounter keyboard or mouse problems, see the documentation that came with the equipment and to the common c

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

A new device is not recognized as part of the system.Cause SolutionTo access Device Manager in Windows 10, type device manager in the taskbar search b