Maintenance and Service GuideHP ProDesk 405 G1 Microtower
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Fuzzy focus; streaking, ghosting, or shadowing effects; horizontal scrolling lines; faint vertical bars; orunable to center 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
Sound does not come out of the speaker or headphones.Cause SolutionThe application is set to use a different audio device thanspeakers.Some graphics c
There is no sound or sound volume is too low.Cause SolutionThe application is set to use a different audio device thanspeakers.Some graphics cards sup
Printer will not turn on.Cause SolutionThe cables may not be connected properly. Reconnect all cables and check the power cord and electricaloutlet.Pr
Keyboard commands and typing are not recognized by the computer.Cause SolutionKeyboard needs repairs. See the Worldwide Limited Warranty for terms and
Mouse does not respond to movement or is too slow.Cause SolutionMouse may need cleaning. Remove the roller ball cover on the mouse and clean theintern
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 computerbeeps ten times. (Beeps stop after fifth iteration
1 Product featuresStandard configuration featuresFeatures may vary depending on the model. For a complete listing of the hardware and softwareinstalle
Table 7-2 Solving Network Problems (continued)Wake-on-LAN feature is not functioning.Cause SolutionS5 Wake on LAN is disabled (some models). Enable t
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
Network controller stops working without apparent cause.Cause SolutionThe files containing the network drivers are corrupted. Reinstall the network dr
NOTE: The memory count will be affected by configurations with the Management Engine (ME)enabled. The ME uses 8MB of system memory in single channel m
Power LED flashes Red five times, once every second, followed by a two second pause, and thecomputer beeps five times. (Beeps stop after fifth iterati
Solving CD-ROM and DVD problemsIf you encounter CD-ROM or DVD problems, see the common causes and solutions listed in thefollowing table or to the doc
Movie will not play in the DVD drive.Cause SolutionMovie may be regionalized for a different country. See the documentation that came with the DVD dri
Recording or copying CDs is difficult or impossible.Cause SolutionWrong or poor quality media type. 1. Try using a slower speed when recording.2. Veri
Solving USB flash drive problemsIf you encounter USB flash drive problems, common causes and solutions are listed in the followingtable.USB flash driv
Front panel componentsDrive configuration may vary by model. Some models have a bezel blank covering one or more drivebays.1 5.25-inch Optical Drive (
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 SolutionThe CAT5 UTP cable is disconnected. Connect the CAT5 UTP cable between the cable modem andthe computer
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
8 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 section alsoincludes some
Control panel message Description Recommended action163-Time & Date Not Set Invalid time or date in configuration memory.RTC (real-time clock) bat
Control panel message Description Recommended action301-Keyboard Error Keyboard failure. 1. Reconnect keyboard with computerturned off.2. Check connec
Control panel message Description Recommended action514-CPU or Chassis Fan not Detected CPU or chassis fan is not connected or mayhave malfunctioned.1
Control panel message Description Recommended action1152-Serial Port B Address Conflict Detected Both external and internal serial ports areassigned t
Rear panel components1 Power Cord Connector 7 Line-Out Connector for powered audiodevices (green)2 Power Indicator Light 8 Voltage Select Switch
Control panel message Description Recommended action2201-MEBx Module did not checksumcorrectlyMemory error during POST execution of theManagement Engi
Control panel message Description Recommended action2211-Memory not configured correctly forproper MEBx execution.DIMM1 or XMM1 is not installed. Make
Control panel message Description Recommended action2230-General error during MEBx execution Error occurred during MEBx execution whichfails into the
Control panel message Description Recommended actionNetwork Server Mode Active and NoKeyboard AttachedKeyboard failure while Network ServerMode enable
Interpreting POST diagnostic front panel LEDs andaudible codesThis section covers the front panel LED codes as well as the audible codes that may occu
Activity Beeps Possible cause Recommended actionRed Power LED flashes fourtimes, once every second,followed by a two secondpause. Beeps stop after fif
Activity Beeps Possible cause Recommended actionRed Power LED flashes ninetimes, once every second,followed by a two secondpause. Beeps stop after fif
Activity Beeps Possible cause Recommended actionRed Power LED flashes eleventimes, once every second,followed by a two secondpause. Beeps stop after f
9 Password security and resettingCMOSThis computer supports security password features, which can be established through the ComputerSetup Utilities m
Resetting the password jumperCAUTION: If you enable the stringent security feature in Computer Setup and you forget the setuppassword or the power-on
Serial number locationEach computer has a unique serial number and a product ID number that are located on the exterior ofthe computer. Keep these num
8. Plug in the computer and turn on power. Allow the operating system to start. This clears the currentpasswords and disables the password features.9.
4. Locate, press, and hold the CMOS button in for five seconds.NOTE: Make sure you have disconnected the AC power cord from the wall outlet. The CMOSb
10 HP PC Hardware DiagnosticsTo help troubleshoot and diagnose failures, use the UEFI-based hardware diagnostic solution that HPincludes on all produc
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
11 System backup and recoveryBacking up, restoring, and recovering in Windows8.1 or Windows 8Your computer includes tools provided by HP and Windows t
NOTE: Any information on the USB flash drive will be erased before the recovery media iscreated.●To create the Windows 8.1 recovery media, from the St
6. Select Troubleshoot.7. Select Reset.8. Follow the on-screen instructions to continue.Recovery using the Windows recovery USB flash driveTo recover
After the repair is completed and the Windows desktop appears:1. Remove the Windows operating system media, and then insert the Driver Recovery media.
There are two types of recovery media. To determine which steps to follow for your computer:1. Click the Start button.2. Click All Programs.●If Securi
NOTE: Recovery Media Creation formats the USB flash drive, deleting any files on it.1. Close all open programs.2. Insert the USB flash drive into a US
2 Activating and Customizing theSoftwareNOTE: This chapter provides information for both Windows 7 and Windows 8.Activating and customizing the softwa
After the Windows 7 operating system DVD has been created, create the Driver Recovery DVD:1. Select Start > All Programs > Productivity and Tool
To start System Restore:1. Close all open programs.2. Click the Start button, right-click Computer, and then click Properties.3. Click System protecti
4. When Windows has loaded, click the Start button, and then click All Programs.●If Security and Protection is listed, continue with step 5.●If Produc
To perform a System Recovery using recovery media:1. If you are using a set of DVDs, insert the first recovery disc into the DVD drive tray, and close
NOTE: This process takes several minutes.1. If possible, back up all personal files.2. Restart the computer, and then insert the Windows 7 operating s
A Battery replacementThe battery that comes with the computer provides power to the real-time clock. When replacing thebattery, use a battery equivale
6. Locate the battery and battery holder on the system board.NOTE: On some computer models, it may be necessary to remove an internal component togain
b. Insert the new battery and position the clip back into place.NOTE: After the battery has been replaced, use the following steps to complete this pr
B Power cord set requirementsThe power supplies on some computers have external power switches. The voltage select switch featureon the computer permi
Country-specific requirementsAdditional requirements specific to a country are shown in parentheses and explained below.Country Accrediting Agency C
Downloading Windows 7 updatesMicrosoft may release updates to the operating system. To help keep the computer running optimally,HP recommends checking
C SpecificationsMicrotower specificationsChassisHeightWidthDepth14.05 in7.2 in15.82 in357 mm182.9 mm402 mmApproximate Weight 15.75 lb 7.15 kgTemperatu
Standard EfficiencyHigh Efficiency300W active PFC(230 VAC input only)300W active PFC EStar 682/85/82% efficient at 20/50/100% load (230V)Rated Input C
IndexAaccess panellocked 77microtower removal 27microtower spare part number27microtower, spare partnumber 8, 16adapter, DisplayPort to DVI, sparepart
front I/O assemblymicrotower spare part number51microtower, spare partnumber 10, 16front panel components 2front panel problems 110front USB panelmicr
microtower spare part number59microtower, spare partnumber 9, 16operating voltage range 150power switch assemblymicrotower removal andreplacement 53mi
System Restore, Windows 7 140Ttamper-proof screwstool 23temperature control 20tools, servicing 23Torx T15 screwdriver 23Vventilation, proper 20WWake-o
We recommend that you register your computer with HP during operating system set up so you canreceive important software updates, facilitate support q
3 Illustrated parts catalogThis chapter provides spare part information for all chassis.Microtower chassis spare partsComputer major componentsItem De
Item Description Spare part number(3) Power supply 300W, Energy Star 5.0 712298-001 300W, Energy Star 6.0 748824-001 300W, Active PFC 715184-001
© Copyright 2013 Hewlett-PackardDevelopment Company, L.P. The informationcontained herein is subject to changewithout notice.Microsoft and Windows are
CablesItem Description Spare part number(1) Front I/O assembly 745049-001(2) Power switch/LED assembly 745050-001 SATA data cable, 14 inch, 2 straigh
Misc partsItem Description Spare part number(1) Speaker 745053-001(2) Fan Standard 745052-001 Fan, BFR/PVC free 748825-001(3) Parallel port, PCI ca
Item Description Spare part number Hard drive adapter bracket(to install 2.5” or 3.5” hard drives into 5.25 drive bay) 397117-001 WLAN antennas 5833
DrivesDescription Spare part numberHard drive 2 TB, 7200 rpm, 3.5 inch 747993-0011 TB, hybrid SSD 724937-0011 TB, 7200 rpm, 3.5 inch 747992-001500 GB
Sequential part number listingSpare partnumberDescription202997-001 Adapter, DVI-I to VGA (standard)397117-001 Hard drive adapter bracket (to install
Spare partnumberDescription701671-xx1 Keyboard, smart card, CCID702084-001 Nvidia GeForce GT630 DP PCIe x16 graphics card, 2 GB703372-001 HP Ultraslim
Spare partnumberDescription729726-601 System board for use in models with an AMD A4-5000 processor with Windows 8 Professional (includesreplacement th
4 Routine care, SATA driveguidelines, and disassemblypreparationThis chapter provides general service information for the computer. Adherence to the p
Generating staticThe following table shows that:●Different activities generate different amounts of static electricity.●Static electricity increases a
Personal grounding methods and equipmentUse the following equipment to prevent static electricity damage to equipment:●Wrist straps are flexible strap
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
●Conductive foam●Conductive tabletop workstations with ground cord of one-megohm +/- 10% resistance●Static-dissipative table or floor mats with hard t
●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
CAUTION: Use safety glasses equipped with side shields before attempting to clean debris fromunder the keys.●Visible debris underneath or between the
Tools and software RequirementsTo service the computer, you need the following:●Torx T-15 screwdriver●Torx T-15 screwdriver with small diameter shank
●If you are inserting or removing a hard drive, turn off the computer. Do not remove a hard drivewhile the computer is on or in standby mode.●Before h
SATA hard drive cablesSATA data cableAlways use an HP approved SATA 3.0 Gb/s cable as it is fully backwards compatible with the SATA1.5 Gb/s drives.Cu
5 Removal and replacementprocedures: MicrotowerAdherence to the procedures and precautions described in this chapter is essential for proper service.A
Access panelDescription Spare part numberAccess panel 745046-001To access internal components, you must remove the access panel:1. Prepare the compute
Front bezelDescription Spare part numberFront bezel for use in all countries and regions except for the People’s Republic of China 745047-001Front bez
Bezel blanksDescription Spare part numberBezel blank 745036-001On some models, there are bezel blanks covering the 3.5-inch and 5.25-inch drive bays t
iv About This Book
●To remove a 3.5-inch bezel blank, press inward on the two retaining tabs on the side of thebezel blank that hold the bezel blank in place (1) and rot
MemoryDescription Spare part number8-GB, PC3-12800 689375-0014-GB, PC3-12800 671613-0012-GB, PC3-12800 671612-001The computer comes with double data r
Installing DIMMsCAUTION: You must disconnect the power cord and wait approximately 30 seconds for the powerto drain before adding or removing memory m
4. Push the module down into the socket, ensuring that the module is fully inserted and properlyseated. Make sure the latches are in the closed positi
3. Remove the screw that holds down the expansion card retention latch (1) then slide the latch up(2) and pull it off the rear of the chassis (3).4. L
b. If you are removing a PCI Express x1 card, hold the card at each end and carefully rock itback and forth until the connectors pull free from the so
7. If you are not installing a new expansion card, install an expansion slot cover to close the openslot.CAUTION: After removing an expansion card, yo
9. Press the expansion card retention latch against the back of the chassis (1) and slide it down (2)so that the tabs on the back of the latch slide i
System board connectionsRefer to the following illustration and table to identify the system board connectors for your model.No. System Board Connecto
DrivesDescription Spare part numberOptical drives DVD±RW drive 690418-001DVD-ROM drive 682550-001Blu-ray BD-RW SuperMulti XL Drive 682219-001Hard dri
Table of contents1 Product features ... 1
No. Mounting Screw Device1 Silver Standard 6-32 Mounting Screws USB 3.0 Media Card Reader3.5-inch Hard Drive2 Black M3 Mounting Screws 5.25-inch Optic
Drive positions1 5.25-inch half-height drive bay (optical drive shown)2 5.25-inch half-height drive bay3 3.5-inch drive bay for optional drive (media
Removing a 5.25-inch driveCAUTION: All removable media should be taken out of a drive before removing the drive from thecomputer.1. Prepare the comput
4. If you are installing an optical drive, install one black M3 metric mounting screw in the front upperscrew hole on the right side of the drive.NOTE
6. Connect the power cable (1) and data cable (2) to the rear of the optical drive.7. Connect the opposite end of the data cable to the light blue SAT
4. Disconnect the drive cables from the rear of the drive, or, if you are removing a media cardreader, disconnect the USB cable from the system board
Installing a 3.5-inch device1. Prepare the computer for disassembly (Preparation for disassembly on page 26).2. Remove the access panel (Access panel
5. If installing a USB 3.0 media card reader, connect the media card reader 3.0 cable to the USB3.0 to USB 2.0 adapter (1) and connect the adapter to
4. Remove the four 6-32 mounting screws (1) and slide the drive out of the bay (2).Installing a 3.5-inch drive1. Prepare the computer for disassembly
●Secure the drive to the bay adapter bracket by installing four black M3 adapter bracketscrews through the sides of the bracket into the drive.4. Slid
Grounding the work area ... 19Recommended materials and equipmen
5. Connect the power cable (1) and data cable (2) to the back of the hard drive.NOTE: The power cable for the hard drives is a two-headed cable that i
Front I/O assemblyDescription Spare part numberFront I/O assembly 745049-0011. Prepare the computer for disassembly (Preparation for disassembly on pa
5. Remove the cables from the plastic tie on the base pan.NOTE: System board appearance may vary.6. From the front of the computer, remove the Torx T1
Power switch/LED assemblyDescription Spare part numberPower switch/LED assembly 745050-0011. Prepare the computer for disassembly (Preparation for dis
6. Rotate the assembly downward to remove it from the chassis (2).7. Pull the assembly away from the chassis while threading the cable through the hol
SpeakerDescription Spare part numberSpeaker 745053-0011. Prepare the computer for disassembly (Preparation for disassembly on page 26).2. Remove the a
4. Remove the speaker cable from the cable tie on the base pan.NOTE: System board appearance may vary.5. From the outside front of the chassis, remove
6. From the inside of the chassis, slide the speaker toward the right to remove it from its holder, andthen remove it from the chassis.To replace the
FanDescription Spare part numberFan 745052-001Fan, BFR/PVC free 748825-0011. Prepare the computer for disassembly (Preparation for disassembly on page
Power supplyNOTE: System board appearance may vary.Description Spare part numberPower supply, 300W, Energy Star 5.0 712298-001Power supply, 300W, Ener
Front I/O assembly ... 51Power switch/LED
●P4 connector: secondary hard drive●P5 connector: secondary optical drive5. From the outside rear of the chassis, remove the four silver Torx T15 scre
6. From the inside of the chassis, slide the power supply toward the front of the computer, rotateslightly into the computer so the power supply clear
System boardNOTE: All system board spare part kits include replacement thermal material.NOTE: System board appearance may vary.Description Spare part
6. Slide the system board toward the front of the computer to disengage the I/O panel, and then liftthe system board out of the computer.When reinstal
6 Computer Setup (F10) UtilityComputer Setup (F10) UtilitiesUse Computer Setup (F10) Utility to do the following:●Change factory default settings.●Set
Using Computer Setup (F10) UtilitiesComputer Setup can be accessed only by turning the computer on or restarting the system. To accessthe Computer Set
Computer Setup—FileNOTE: Support for specific Computer Setup options may vary depending on the hardwareconfiguration.Table 6-1 Computer Setup—FileOpt
Computer Setup—StorageNOTE: Support for specific Computer Setup options may vary depending on the hardwareconfiguration.Table 6-2 Computer Setup—Stor
Table 6-2 Computer Setup—Storage (continued)Storage Options SATA EmulationAllows you to choose how the SATA controller and devices are accessed by th
Computer Setup—SecurityNOTE: Support for specific Computer Setup options may vary depending on the hardwareconfiguration.Table 6-3 Computer Setup—Sec
8 POST error messages ... 114POST numeric codes and
Table 6-3 Computer Setup—Security (continued)System Security(these options arehardware dependent)NOTE: Available options are displayed depending on s
Computer Setup—PowerNOTE: Support for specific Computer Setup options may vary depending on the hardwareconfiguration.Table 6-4 Computer Setup—PowerO
Table 6-5 Computer Setup—Advanced (for advanced users) (continued)Onboard Devices Allows you to set resources for or disable Legacy devices.Select th
7 Troubleshooting withoutdiagnosticsThis chapter provides information on how to identify and correct minor problems, such as USB devices,hard drive, o
●If you recently installed new software, uninstall the software and see if the computer functionsproperly.●Boot the computer to the Safe Mode to see i
●Check the Power LED on the front of the computer to see if it is flashing red. The flashing lights areerror codes that will help you diagnose the pro
Solving general problemsYou may be able to easily resolve the general problems described in this section. If a problem persistsand 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
Poor performance.Cause SolutionHard drive fragmented. Defragment hard drive.Program previously accessed did not release reserved memoryback to the sys
Computer powered off automatically and the Power LED flashes Red two times, once every second,followed by a two second pause, and the computer beeps t
Appendix C Specifications ... 150Microtower specificatio
Solving power problemsCommon causes and solutions for power problems are listed in the following table.Power supply shuts down intermittently.Cause So
Power LED flashes Red four times, once every second, followed by a two second pause, and thecomputer beeps four times. (Beeps stop after fifth iterati
Disk transaction problem.Cause SolutionEither the directory structure is bad or there is a problem witha file.In Windows 7, click Start, expand Comput
Nonsystem disk/NTLDR missing message.Cause SolutionBootable hard drive is not attached as first in a multi-harddrive configuration.If attempting to bo
Solving media card reader problemsMedia card will not work in a digital camera after formatting it in Windows.Cause SolutionBy default, Windows will f
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
Blank screen (no video).Cause SolutionYou may have a screen blanking utility installed or energysaver features are enabled.Press any key or click the
Blank screen and the power LED flashes Red six times, once every second, followed by a two secondpause, and the computer beeps six times. (Beeps stop
The picture is broken up, rolls, jitters, or flashes.Cause SolutionThe monitor connections may be incomplete or the monitormay be incorrectly adjusted
“Out of Range” displays on screen.Cause SolutionVideo resolution and refresh rate are set higher than what themonitor supports.Restart the computer an
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