HP Pro All-in-One 3520 Specifications

Maintenance & Service GuideHP Pro 3520 All-in-One Business PC

Front ComponentsComponent Component1 Dual Microphone Array 4 Stereo speakers2 Webcam 5 20 inch diagonal widescreen LCD HD anti-glaredisplay3 Webcam LE

Nonsystem disk/NTLDR missing message.Cause SolutionThe system is trying to start from the hard drive but the harddrive may have been damaged.1. Perfor

Computer seems to be locked up.Cause SolutionProgram in use has stopped responding to commands. 1. Use the task manager to close programs that do notr

Solving Media Card Reader ProblemsTable A-4 Solving Media Card Reader ProblemsMedia card will not work in a digital camera after formatting it in Win

Do not know how to remove a media card correctly.Cause SolutionThe computer’s software is used to safely eject the card. In Windows 7, click Start, se

Solving Display ProblemsIf you encounter display problems, see the documentation that came with the monitor and to thecommon causes and solutions list

Blank screen and the power LED flashes Red five times, once every second, followed by a two second pause, andthe computer beeps five times. (Beeps sto

Blurry video or requested resolution cannot be set.Cause SolutionIf the graphics controller was upgraded, the correct graphicsdrivers may not be loade

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

Fuzzy focus; streaking, ghosting, or shadowing effects; horizontal scrolling lines; faint vertical bars; or unable tocenter the picture on the screen

Solving Audio ProblemsIf the computer has audio features and you encounter audio problems, see the common causes andsolutions listed in the following

Side ComponentsComponent Component1 Power button 5 6-in-1 media card reader2 Optical disk drive 6 USB 3.0 ports3 Hard disk drive LED indicator 7 Micro

Table A-6 Solving Audio Problems (continued)Sound does not come out of the speaker or headphones.Cause SolutionSome applications can select which aud

Table A-6 Solving Audio Problems (continued)There is no sound or sound volume is too low.Cause SolutionSome applications can select which audio outpu

Table A-7 Solving Printer Problems (continued)Printer prints garbled information.Cause SolutionThe cables may not be connected properly. Reconnect al

Solving Keyboard and Mouse ProblemsIf you encounter keyboard or mouse problems, see the documentation that came with the equipmentand to the common ca

Table A-9 Solving Mouse ProblemsMouse does not respond to movement or is too slow.Cause SolutionMouse connector is not properly plugged into the back

Solving Hardware Installation ProblemsYou may need to reconfigure the computer when you add or remove hardware, such as an additionaldrive or expansio

Computer will not start.Cause SolutionWrong memory modules were used in the upgrade ormemory modules were installed in the wrong location.1. Review th

Power LED flashes Red ten times, once every second, followed by a two second pause, and the computer beeps tentimes. (Beeps stop after fifth iteration

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

Diagnostics reports a failure.Cause SolutionThe cable is not securely connected. Ensure that the cable is securely attached to the networkconnector an

Rear ComponentsComponent Component1 Security lock slot 5 RJ-45 ethernet port2 Adjustable tilt stand 6 USB 2.0 ports3 Power connector LED Indicator 7 A

Table A-11 Solving Network Problems (continued)Network controller stops working without apparent cause.Cause SolutionThe cable is not securely connec

Table A-12 Solving Memory ProblemsSystem will not boot or does not function properly after installing additional memory modules.Cause SolutionA memor

Solving Processor ProblemsIf you encounter processor problems, common causes and solutions are listed in the following table.Table A-13 Solving Proce

Table A-14 Solving CD-ROM and DVD Problems (continued)System will not boot from CD-ROM or DVD drive.Cause SolutionNetwork Boot is enabled in Computer

Cannot eject compact disc (tray-load unit).Cause SolutionDisc not properly seated in the drive. Turn off the computer and insert a thin metal rod into

Solving USB Flash Drive ProblemsIf you encounter USB flash drive problems, common causes and solutions are listed in the followingtable.Table A-15 So

Solving Front Panel Component ProblemsIf you encounter problems with devices connected to the front panel, refer to the common causes andsolutions lis

Unable to connect to the Internet.Cause SolutionIP address is not configured properly. Contact your ISP for the correct IP address.Cookies are corrupt

Solving Software ProblemsMost software problems occur as a result of the following:●The application was not installed or configured correctly.●There i

Computer will not continue after HP logo screen displays.Cause SolutionSystem files may be damaged. In Windows 7, use recovery media to scan hard driv

2 Installing and Customizing theSoftwareIf your computer was not shipped with a Microsoft operating system, some portions of thisdocumentation do not

Contacting Customer SupportFor help and service, contact an authorized reseller or dealer. To locate a reseller or dealer near you,visit http://www.hp

B HP PC Hardware DiagnosticsIf HP Support Assistant is unable to detect a problem, try the UEFI-based hardware diagnosticsolution that HP includes on

Downloading HP PC Hardware Diagnostics to a USBdevice1. Go to http://www.hp.com.2. Click the Support & Drivers link.3. Select the Drivers & So

C Backup and recovery in Windows 8To protect your information, use Windows Backup and Restore to back up individual files and folders,back up your ent

NOTE: The backup process may take over an hour, depending on file size and the speed of thecomputer.1. From the Start screen, type backup, click Setti

3. If the Windows partition and the HP Recovery partition are listed, restart the computer afterWindows has loaded, and then press and hold Shift whil

NOTE: This process takes several minutes.1. If possible, back up all personal files.2. Restart the computer, and then follow the instructions provided

D POST Error MessagesThis appendix lists the error codes, error messages, and the various indicator light and audiblesequences that you may encounter

POST Numeric Codes and Text MessagesThis section covers those POST errors that have numeric codes associated with them. The sectionalso includes some

Control panel message Description Recommended action201-Memory Error RAM failure. 1. Ensure memory modules are correctlyinstalled.2. Verify proper mem

Downloading Windows 8 updatesMicrosoft may release updates to the operating system. To help keep the computer running optimally,HP recommends checking

Control panel message Description Recommended action921-Device in PCI Express slot failed toinitializeThere is an incompatibility/problem with thisdev

Control panel message Description Recommended action2201-MEBx Module did not checksumcorrectlyMemory error during POST execution of theManagement Engi

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

Control panel message Description Recommended actionNetwork Server Mode Active and NoKeyboard AttachedKeyboard failure while Network ServerMode enable

Activity Beeps Possible Cause Recommended ActionRed Power LED flashes twotimes, once every second,followed by a two secondpause. Beeps stop after fift

Activity Beeps Possible Cause Recommended ActionRed Power LED flashes sixtimes, once every second,followed by a two secondpause. Beeps stop after fift

Activity Beeps Possible Cause Recommended ActionRed Power LED flashestwelve iteration but LEDscontinue until problem issolved.12 MXM thermal shutdown.

E Power Cord Set RequirementsThe power supplies on some computers have external power switches. The voltage select switchfeature on the computer permi

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

F SpecificationsAll-in One ModelDesktop DimensionsWidthDepthHeight19.94 in3.98 in15.75 in50.7 cm10.1 cm40.0 cmApproximate Weight (includes stand) 13.8

3 Serial ATA (SATA) Drive Guidelinesand FeaturesNOTE: HP only supports the use of SATA hard drives on these models of computer. No ParallelATA (PATA)

IndexAaccess panel, locked 86antenna, spare part number 31,39audible codes 135audio problems 101BBackup and Restore 125batterydisposal 15beep codes 13

Mmass storage devices, spare partnumbers 36Media Card Reader problems 94memory moduleremoving 46spare part numbers 32memory problems 112monitor proble

webcam moduleremoving 58spare part number 32Windows 8 operating systemDVD 127WLAN moduleremoving 71spare part number 32144 Index

SMART ATA DrivesThe Self Monitoring Analysis and Recording Technology (SMART) ATA drives for the HP PersonalComputers have built-in drive failure pred

4 Routine Care, and DisassemblyPreparationThis chapter provides general service information for the computer. Adherence to the procedures andprecautio

Removing DIPs* from vinyl trayRemoving DIPs* from StyrofoamRemoving bubble pack from PCBPacking PCBs in foam-lined box2,000 V3,500 V7,000 V5,000 V4,00

Grounding the Work AreaTo prevent static damage at the work area, use the following precautions:● Cover the work surface with approved static-dissipat

© Copyright 2012 Hewlett-PackardDevelopment Company, L.P. Theinformation contained herein is subject tochange without notice.Microsoft and Windows are

Operating GuidelinesTo prevent overheating and to help prolong the life of the computer:●Keep the computer away from excessive moisture, direct sunlig

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

Cleaning the MouseBefore cleaning the mouse, ensure that the power to the computer is turned off.● Clean the mouse ball by first removing the retainin

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

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

●Solve system configuration errors detected but not automatically fixed during the Power-On Self-Test (POST).●Replicate the system setup by saving sys

Computer Setup—FileNOTE: Support for specific Computer Setup options may vary depending on the hardwareconfiguration.Table 5-2 Computer Setup—FileOpt

Computer Setup—StorageNOTE: Support for specific Computer Setup options may vary depending on the hardwareconfiguration.Table 5-3 Computer Setup—Stor

Table 5-3 Computer Setup—Storage (continued)Storage Options eSATA PortAllows you to set a SATA port as an eSATA port for use with an external drive.

Table 5-3 Computer Setup—Storage (continued)DPS Self-Test Allows you to execute self-tests on ATA hard drives capable of performing the Drive Protect

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

Computer Setup—SecurityNOTE: Support for specific Computer Setup options may vary depending on the hardwareconfiguration.Table 5-4 Computer Setup—Sec

Table 5-4 Computer Setup—Security (continued)Slot Security Allows you to disable any PCI or PCI Express slot. Default is enabled.Network Boot Enables

Table 5-4 Computer Setup—Security (continued)System Security(these options arehardware dependent)Data Execution Prevention (enable/disable) - Helps p

Table 5-4 Computer Setup—Security (continued)DriveLock Security Allows you to assign or modify a master or user password for hard drives. When this f

Computer Setup—PowerNOTE: Support for specific Computer Setup options may vary depending on the hardwareconfiguration.Table 5-5 Computer Setup—PowerO

Computer Setup—AdvancedNOTE: Support for specific Computer Setup options may vary depending on the hardwareconfiguration.Table 5-6 Computer Setup—Adv

Table 5-6 Computer Setup—Advanced (for advanced users) (continued)BIOS Power-On Allows you to set the computer to turn on automatically at a time you

Table 5-6 Computer Setup—Advanced (for advanced users) (continued)VGA Configuration Displayed only if there is an add-in video card in the system. Al

6 Illustrated parts catalogComputer major componentsItem Description Spare part number(1) Front bezel 709846-001(2) Display panels (18.5-inch, WLED, n

CablesDescription Spare part number(1) Hard drive cable 709826-001(2) Optical drive cable 709827-001 Display cable (LVDS) (not illustrated) 709828-00

iv About This Book

BoardsDescription Spare part number(1) System board (includes replacement thermal material) For use in models with Windows 8 with no Digital Produc

Description Spare part number Intel Pentium Dual-Core processors: ●G2130 processor, 3.2 GHz 715898-001 ● G2120 processor, 3.1 GHz 703282-001 ●G645

Misc PartsDescription Spare part number(1) Heat sink/thermal module 709832-001(2) Optical drive bracket 671558-001(3) Speaker kit (includes left and r

Thermal padsDescription Spare part numberThermal pads PCH 709842-001Vaxg 709843-001Vcore 709844-001Thermal pad, SODIMM 709845-001Thermal pads 35

Mass storage devices (not illustrated)Description Spare part numberOptical driveHP SuperMulti DVD Writer Drive (includes bezel) 657958-001Hard drives2

Spare partnumberDescription703282-001 Intel Pentium Dual-Core G2120 processor, 3.1 GHz703643-001 System board for use in models with Windows 8 with no

Spare partnumberDescription709694-091 Keyboard, jade, wired, USB, Norway709694-101 Keyboard, jade, wired, USB, Sweden709694-111 Keyboard, jade, wired,

Spare partnumberDescription709695-271 Keyboard, USB, Romania709695-B41 Keyboard, USB, BHCSY709695-BB1 Keyboard, USB, Hebrew/Israel709695-DE1 Keyboard,

7 Removal and Replacement ProceduresAll-in One (AIO) ChassisThe following sections provide information about disassembling various components of the c

Rear CoverDescription Spare part numberRear cover 709839-001Remove the main rear cover to access internal components. The cover is secured by two capt

Table of contents1 Product Features ...

StandDescription Spare part numberStand 709838-001The stand is secured with four screws that you can remove from the inside of the rear cover.To remov

6. Slide the stand bracket through the slot in the rear cover, and then remove the stand from therear cover.To replace the stand, reverse the removal

Memory CoverRemove the memory cover to access the memory modules (SODIMMs) and RTC battery.To remove the memory cover:1. Prepare the computer for disa

3. Lift the cover off the computer.To replace the rear cover, reverse the removal procedures.Memory Cover 45

MemoryDescription Spare part number4 GB (PC3-12800) 689373-0012 GB (PC3-12800) 689372-001The memory modules are located under the memory cover.You mus

The DDR3-SDRAM SODIMMs must also:●support CAS latency 11 DDR3 1600 MHz (11-11-11 timing)●contain the mandatory Joint Electronic Device Engineering Cou

RTC BatteryThe RTC battery is located under the memory cover.To remove the RTC battery:1. Prepare the computer for disassembly (see Preparing to Disas

5. To insert the new battery, slide one edge of the replacement battery under the holder’s lip withthe positive side up. Push the other edge down unti

Optical DriveDescription Spare part numberHP SuperMulti DVD Writer Drive (includes bezel) 657958-001Optical drive bracket 671558-001The optical drive

4. Use the bracket to push the drive out of the bay, and then slide the drive out of the computer (2).5. If you need to remove the bracket from the op

Cleaning the Monitor ... 13Cleaning the Mouse .

Hard DriveDescription Spare part number2-TB 616608-0011.5-TB 613209-0011-TB 621418-001500-GB 621421-001Conductive tape (hard drive; 36mm x 11mm) 70984

4. Lift and grasp the handle on top of the hard drive cage (2) and slide the cage toward the outeredge of the computer, then lift the cage out of the

Converter BoardDescription Spare part numberConverter board 697319-001The converter board is located on the left side of the computer. It is secured w

4. Remove the two screws (2) that secure the board to the computer.5. Lift the converter board from the computer.To install the converter board, rever

SpeakersDescription Spare part numberSpeaker kit (includes left and right speakers) 709831-001The speakers are located at the bottom of the computer.

4. Disconnect the speaker cable (2) from the system board.5. Remove the speakers from the computer.To install the speakers, reverse the removal proced

Webcam ModuleDescription Spare part numberWebcam module 709837-001The webcam module is located at the top of the computer. It is housed in a bracket t

3. Remove the Torx screw (1) that secures the module to the computer, and lift the module fromthe computer as far as the cable allows (2).4. Disconnec

5. Remove the webcam from the bracket by removing the two Phillips screws that secure it to thebracket and then removing the webcam from the bracket.T

System Board CoverThe system board cover protects the system board. It is secured with two screws.To remove the system board cover:1. Prepare the comp

System Board Cover ... 61Fan ..

3. Remove the two Torx screws that secure the cover to the computer.4. Lift the cover off the computer.To install the system board cover, reverse the

FanDescription Spare part numberFan 671582-001The fan is located in the middle of the computer. It is secured with three screws.To remove the fan:1. P

5. Disconnect the fan cable (2) from the system board connector.6. Lift the fan and remove it from the computer (3).To install the fan, reverse the re

Heat sink/thermal moduleDescription Spare part numberHeat sink/thermal module 709832-001The heat sink is secured with four captive Torx screws and one

4. Remove the non-captive Torx screw (1) on the left side of the heat sink, and then loosen the fourcaptive screws (2) on the right side of the heat s

ProcessorDescription Spare part numberIntel Core i3 3240 processor, 3.4 GHz 688951-001Intel Core i3 3225 processor, 3.3 GHz 689578-001Intel Core i3 32

7. Carefully lift the processor from the socket (3).CAUTION: Do NOT handle the pins in the processor socket. These pins are very fragile andhandling t

Drive Cables and ConnectorDescription Spare part numberOptical drive connector cable 709827-001Hard drive connector cable 709826-001Both the optical d

9. Remove the connector from the computer.To install the drive connectors, reverse the removal procedures.70 Chapter 7 Removal and Replacement Proce

WLAN ModuleDescription Spare part numberRalink RT5390R 802.11bgn 1x1 Wi-Fi Adapter (WLAN module) 701396-001The WLAN module is located on the bottom le

Performing a system recovery ... 126Using the W

4. Disconnect the antenna cables from the module.5. Remove the Phillips screws that secure the module to the system board.72 Chapter 7 Removal and R

6. Lift the module to a 45-degree angle, and then pull it away to remove it from the socket.To install the WLAN module, reverse the removal procedures

System BoardDescription Spare part numberSystem board for use in models with Windows 8 with no Digital Product Key (DPK) 703643-001System board for us

10. Remove the nine screws (circled in image) that secure the system board to the computer.11. Lift the system board straight up and out of the comput

76 Chapter 7 Removal and Replacement Procedures All-in One (AIO) Chassis

Front BezelDescription Spare part numberFront bezel 709846-001The front bezel is located on the front of the computer and is secured to the display pa

6. Lift the computer from the bezel, removing lifting the tabs as necessary to remove it.To install the front bezel, reverse the removal procedures.78

Display PanelDescription Spare part numberDisplay panel, WLED, 18.5-inch, non-ZBD, 200 nits—Samsung 709833-001Display panel, WLED, 18.5-inch, non-ZBD,

5. Remove the four screws that secure the display panel to the bracket. Each panel is secured withtwo screws on opposite sides of the bracket. Samsung

Multiple display panels are available for this computer. The panels use the same converter boardspare part. You must position the jumpers on the conve

1 Product FeaturesOverviewHP Pro 3520 All-in-One Business PC offers the following features:●Integrated All-in-One form factor●20-inch, 16:9, WLED, 160

A Troubleshooting Without DiagnosticsThis chapter provides information on how to identify and correct minor problems, such as USBdevices, hard drive,

●Refer to the comprehensive online technical support at http://www.hp.com/support.●Refer to Helpful Hints on page 83 in this guide.To assist you in re

●Wake the computer by pressing any key on the keyboard or pressing the power button. If thesystem remains in suspend mode, shut down the computer by p

Solving General ProblemsYou may be able to easily resolve the general problems described in this section. If a problempersists and you are unable to r

Cursor will not move using the arrow keys on the keypad.Cause SolutionThe Num Lock key is turned on. Press the Num Lock key. The Num Lock light must b

Table A-1 Solving General Problems (continued)Poor performance.Cause SolutionVirus resident on the hard drive. Run virus protection program.Too many

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

Solving Power ProblemsCommon causes and solutions for power problems are listed in the following table.Table A-2 Solving Power ProblemsPower supply s

Power LED flashes Red four times, once every second, followed by a two second pause, and the computer beepsfour times. (Beeps stop after fifth iterati

Solving Hard Drive ProblemsTable A-3 Solving Hard Drive ProblemsHard drive error occurs.Cause SolutionHard disk has bad sectors or has failed. 1. In