HP Pro 4500 Maintenance & Service Guide: HP Pro 4500 Microtower Business P
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- HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 1
Maintenance & Service Guide HP Pro 4500 Microtower Business PCs - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 2
HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP Hewlett-Packard Company. HP Pro 4500 Microtower Business PCs First Edition (November 2010) Document Part Number - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 3
About This Book WARNING! Text set off in this manner indicates that failure to follow directions could result in bodily harm or loss of life. CAUTION: Text set off in this manner indicates that failure to follow directions could result in damage to equipment or loss of information. NOTE: Text set - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 4
iv About This Book - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 5
Description ...1 Chassis Designation ...1 HP Pro 4500 ...1 Product Description ...2 2 Illustrated parts catalog ...3 Microtower Chassis spare parts 3 Computer major components 3 Sequential part number listing 6 3 Removal and Replacement Procedures Microtower (MT) Chassis 9 Preparation for - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 6
Appendix B Troubleshooting Without Diagnostics 57 Safety and Comfort ...57 Before You Call for Technical Support 57 Helpful Hints ...58 Solving General Problems ...60 Solving Power Problems ...64 Solving Hard Drive Problems 65 Solving Media Card Reader Problems 66 Solving Display Problems ...68 - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 7
Cleaning the Mouse 106 Service Considerations ...106 Power Supply Fan 106 Tools Drives ...107 Lithium Coin Cell Battery 108 Appendix E Serial ATA (SATA) Drive Guidelines and Features 109 SATA Hard Drives ...109 SATA Hard Drive Cables ...109 SATA Data Cable 109 SMART ATA Drives ...110 Hard Drive - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 8
Appendix F Power Cord Set Requirements 111 General Requirements ...111 Japanese Power Cord Requirements 111 Country-Specific Requirements 112 Appendix G Specifications 113 Index ...114 viii - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 9
1 Product Description Chassis Designation The following subsection illustrates the chassis design. HP Pro 4500 Chassis Designation 1 - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 10
Product Description HP Pro 4500 features: ● 2 external 5-1/4 inch optical drive bays ● 2 internal 3-1/2 inch hard drive bays ● 1 external 3-1/2-inch option drive ● reset button ● Intel processors: ◦ Core 2 Quad ◦ Core 2 Duo ◦ Pentium Dual-Core ◦ Celeron Dual-Core ◦ Celeron ● Intel Q45 Express - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 11
catalog This chapter provides parts information for the chassis. Microtower Chassis spare parts Computer major components Item Description (1) Front bezel (2) Access panel (3) Power switch/LED assembly (4) Front I/O assembly (5) Power supply Spare part number 614495-001 586372-001 614496 - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 12
drives 1-TB 500-GB 320-GB 250-GB Optical drives 6X BD±RW SuperMulti drive with LightScribe 16X DVD±RW SuperMulti drive with LightScribe 16X DVD-ROM drive SATA hard drive includes bracket Keyboard NOTE: For a list of supported countries and associated dash numbers, see Sequential part - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 13
HP PS/2 HP 6-MB L2 cache (95W) ● Q8400, 2.66 GHz, 4-MB L2 cache Intel Core 2 Duo Processors ● E8600, 6-MB cache, 3.33 GHz ● E8500, 6-MB cache, 3.16 GHz ● black USB, optical, black USB, laser, black (not illustrated) Bezel blank 5.25-inch 3.5-inch Ports Printer Serial Microtower Chassis spare parts 5 - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 14
, PCIe, 56K, Agere International 56K, includes bracket Printer port Intel Core2 Duo E8600 processor , 6-MB cache, 3.33 GHz Intel Power supply, 300W, PFC Intel Core2 Duo E8400 processor, 6-MB cache, 3.00 GHz 1394 PCI adapter, full height Serial port Bezel blank, 5.25-inch 6X BD±RW SuperMulti drive - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 15
) 320-GB hard drive 500-GB hard drive 1-TB hard drive 250-GB hard drive Intel Core2 Duo E6800 processor, 2-MB cache, 3.33 GHz Intel Core2 Duo E5700 processor, 2-MB cache, 3.00 GHz Memory module, 1-GB, PC3 10600, 1333-MHz Memory module, 2-GB, PC3 10600, 1333-MHz Microtower Chassis spare parts 7 - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 16
Spare part number 636735-001 638006-001 Description System board (includes replacement thermal material) ATI HD4550, 512-MB PCIeX16 graphics card 8 Chapter 2 Illustrated parts catalog - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 17
Microtower (MT) Chassis Adherence to the procedures and precautions described in this chapter is essential for proper service. CAUTION: Turn off the computer before disconnecting any cables. CAUTION: Regardless of the power-on state, voltage is always present on the system board as long as the - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 18
panel is facing up. Figure 3-1 Removing the Computer Access Panel To replace the access panel, reverse the removal steps. 10 Chapter 3 Removal and Replacement Procedures Microtower (MT) Chassis - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 19
Front Bezel Description Front bezel Spare part number 616792-001 1. Prepare the computer for disassembly (Preparation for Disassembly on page 9). 2. Remove the access panel (Access Panel on page 10). 3. Press outward on the three latches on the right side of the bezel (1), then rotate the right - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 20
blank. If the blank needs to be replaced at a later date, you can order a replacement blank from HP. 3. To remove the 3.5-inch bezel blank, press the two retaining tabs towards the outer left edge of 4. Replace the front bezel. 12 Chapter 3 Removal and Replacement Procedures Microtower (MT) Chassis - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 21
random access memory (DDR3SDRAM) dual inline memory module (DIMM). DDR3-SDRAM DIMMs The memory sockets are populated with at least one preinstalled DIMM. To achieve the maximum memory support, you can populate the system board with up to 8 GB of memory. For proper system operation, the DDR3-SDRAM - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 22
Location Item/Description DIMM1 socket, Channel A DIMM2 socket, Channel B DIMM3 socket, Channel A DIMM4 socket, Channel B NOTE: A DIMM must occupy the DIMM1 socket. Socket Color White Black White Black 14 Chapter 3 Removal and Replacement Procedures Microtower (MT) Chassis - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 23
Installing Memory Modules CAUTION: 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-on state, voltage is always supplied to the memory modules as long as the computer is plugged into an - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 24
(2). NOTE: On HP Pro 4500 systems with Intel processors, populate the DIMM sockets in the following order: DIMM1, DIMM3, DIMM2, then DIMM4. Figure 3-5 Installing a DIMM NOTE: A memory module can be installed in only one Reconnect the power cord and Microtower (MT) Chassis - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 25
for use in China only) 1394 PCI adapter, full height Intel Gigabit NIC, includes bracket Modem, PCIe, 56K, Agere International 56K, includes bracket Printer port Serial/parallel port PCI adapter Serial port, full height Spare part number 584217-001 638006-001 538052-001 617079-001 589145-001 589146 - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 26
the Slot Cover Lock 5. Before installing an expansion card, remove the expansion slot cover or the existing expansion card. 18 Chapter 3 Removal and Replacement Procedures Microtower (MT) Chassis - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 27
NOTE: Before removing an installed expansion card, disconnect any cables that may be attached to the expansion card. a. If you are installing an expansion card in a vacant socket, you must use a flatblade screwdriver to pry out the metal shield on the rear panel that covers the expansion slot. Be - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 28
, you must replace it with a new card or expansion slot cover for proper cooling of internal components during operation. 20 Chapter 3 Removal and Replacement Procedures Microtower (MT) Chassis - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 29
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 chassis so that the bottom of the bracket on the card slides into the small slot on the chassis. Press the card straight down into the expansion socket on - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 30
F_USB1 (P24) F_AUD (P23) MEDIA (P150) white white brown white black white yellow black power supply, 24-pin power supply, 4-pin chassis fan heat sink fan front power button/LED front I/O USB cable front I/O audio card reader 22 Chapter 3 Removal and Replacement Procedures Microtower (MT) Chassis - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 31
(P62) light blue SATA4 (P63) orange PCI1 (J20) white PCI2 (J21) white X1PCEXP1 (J31) black X16PCIEXP (J41) black Description hard drive optical drive optical or hard drive optical or hard drive PCI expansion slot PCI expansion slot PCIe x1 expansion slot PCIe x16 expansion slot Cable - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 32
drives (optical drives shown) 2 One 3.5-inch external drive bay for optional drive (media card reader shown) 3 Primary 3.5-inch internal hard drive bay 4 Secondary 3.5-inch internal hard drive bay for optional hard drive 24 Chapter 3 Removal and Replacement Procedures Microtower (MT) Chassis - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 33
does not support Parallel ATA (PATA) optical drives or PATA hard drives. ● If needed, HP has provided extra drive retainer screws on drives in the drive cage. Hard drives use 6-32 standard screws. All other drives use M3 metric screws. The HP-supplied M3 metric guide screws (1) are black. The HP - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 34
Drive Connections Table 3-4 System Board Drive Connections System Board Label Color SATA1 dark blue SATA2 white SATA3 light blue SATA4 orange Drive Primary hard drive Primary optical drive Secondary drive Secondary drive 26 Chapter 3 Removal and Replacement Procedures Microtower (MT - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 35
Front Bezel on page 11). 4. Disconnect the power cable (1) and data cable (2) from the rear of the optical drive. Figure 3-16 Disconnecting the Power and Data Cables 5. Remove the two screws that secure the drive to the drive cage (1), then slide the drive out of the front of the chassis (2). Figure - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 36
includes only one optical drive, connect the SATA data cable to the white system board connector. If you are adding a second optical drive, connect the SATA data cable to the light blue or orange system board connector. 28 Chapter 3 Removal and Replacement Procedures Microtower (MT) Chassis - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 37
10). 3. Remove the front bezel (Front Bezel on page 11). 4. Disconnect the drive cables. a. If you are removing a diskette drive (available on some models only), disconnect the data cable and power cable from the back of the drive. b. If you are removing a media card reader, disconnect the USB cable - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 38
and rotate the screwdriver to break the knockout plate out of the chassis. Discard the knockout plate. 6. If the new drive has screws installed on the sides of the drive, remove them before inserting the drive into the chassis. 30 Chapter 3 Removal and Replacement Procedures Microtower (MT) Chassis - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 39
M3 metric retainer screws for diskette drives or media card readers are black. Refer to Installing Additional Drives on page 25 for an illustration drive cables: a. If installing a diskette drive (available on some models only), connect the power and data cables to the rear of the drive and - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 40
the Hard Drive Cage Screws 4. Push down the latch on the side of the hard disk drive cage (1), then slide the hard disk drive cage away from the bottom of the chassis (2) as shown below. Figure 3-23 Releasing the Hard Drive Cage 32 Chapter 3 Removal and Replacement Procedures Microtower (MT) Chassis - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 41
5. Lift the hard disk drive cage out of the chassis. Figure 3-24 Removing the Hard Drive Cage 6. Disconnect the power cable (1) and data cable (2) from the back of the hard drive. Figure 3-25 Disconnecting the Hard Drive Cables Drives 33 - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 42
Figure 3-26 Removing the Hard Drive Installing an Internal 3.5-inch Hard Drive 1. Follow the steps in Removing an Internal 3.5-inch Hard Drive on page 31 to remove the hard drive cage and, if necessary, the existing hard drive. 34 Chapter 3 Removal and Replacement Procedures Microtower (MT) Chassis - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 43
that secure the hard disk drive to the hard disk drive cage (2). Make sure the hard disk drive cables are facing the top of the drive cage. NOTE: If you are replacing an old drive with a new drive, use the four retainer screws from the old drive to install the new drive. NOTE: If you are installing - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 44
. A sharp bend can break the internal wires. 4. Place the hard disk drive cage into the chassis (1), then slide it down toward the bottom of the chassis until it locks into place (2). Figure 3-29 Installing the Hard Drive Cage 36 Chapter 3 Removal and Replacement Procedures Microtower (MT) Chassis - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 45
to the appropriate system board connector. If your system has only one SATA hard drive, you must connect the hard drive data cable to the dark blue connector to avoid any hard drive performance problems. If you are adding a second hard drive, connect the data cable to the next available (unpopulated - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 46
the screw (1) that secures the housing to the chassis, slide the housing up (2), and then pull the assembly away from the chassis while guiding the cables through the hole in the chassis. Figure 3-31 Removing the front I/O assembly To install the housing assembly, reverse the removal procedures - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 47
Switch/LED Assembly Description Power switch/LED assembly Spare part number 614496-001 1. you. 4. Remove the front bezel (Front Bezel on page 11). 5. Remove the optical drive (Removing an Optical Drive on page 27). 6. Disconnect the braided cables from the system board. 7. Remove the cable - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 48
switch downward (2), and then pull it away from the chassis while guiding the wires through the hole in the chassis. Figure 3-33 Removing the power switch To install the power switch/LED assembly, reverse the removal procedures. 40 Chapter 3 Removal and Replacement Procedures Microtower (MT) Chassis - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 49
System Fan Description System fan Spare part number 438741-001 1. Prepare the computer for disassembly (Preparation for Disassembly on page 9). 2. Remove the access panel (Access Panel on page 10). 3. Lay the computer on its side with the rear facing toward you. 4. Disconnect the cable that - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 50
power cables: ● Power cable from the optical drive and hard drive. ● 20-pin connector from the system board. The connector has a latch that must be pressed to detach the it from the system board. ● 4-pin connector from the system board. 42 Chapter 3 Removal and Replacement Procedures Microtower (MT - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 51
back (2), slide it left (3) and tilt it so you can lift it out of the computer. Figure 3-36 Pressing the power supply latch and removing the power supply To install the power supply, reverse the removal procedure. Note that there is a latch, a guide, and a ledge on the computer that help secure the - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 52
fan sink on the processor. Failure to do so could result in damage that requires replacing the system board. 44 Chapter 3 Removal and Replacement Procedures Microtower (MT) Chassis - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 53
-MB L2 cache Q9550, 2.83 GHz, 12-MB L2 cache Q9505, 2.83 GHz, 6-MB L2 cache (95W) Q8400, 2.66 GHz, 4-MB L2 cache Intel Core2 Duo Processors E8600, 6-MB cache, 3.33 GHz E8500, 6-MB cache, 3.16 GHz E8400, 6-MB cache, 3.00 GHz E7600, 3-MB cache, 3.06 GHz E6800, 2-MB cache, 3.33 - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 54
to the system board and system board tray with the 4 captive screws and attach the heat sink control cable to the system board. CAUTION: Heat sink retaining screws should be tightened in diagonally opposite pairs system board. 46 Chapter 3 Removal and Replacement Procedures Microtower (MT) Chassis - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 55
board, always update the system ROM to ensure that the latest version of the BIOS is being used on the computer. The latest system BIOS can be found on the Web at: http://h18000.www1.hp.com/support/files. System Board Description System board (includes thermal material) Spare part number 636735 - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 56
of the BIOS is being used on the computer. The latest system ROM BIOS can be found at: http:\ \h18000.www1.hp.com/support/files. Battery The battery that comes with your computer provides power to the higher than 60°C (140°F) 48 Chapter 3 Removal and Replacement Procedures Microtower (MT) Chassis - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 57
or replaced, the CMOS settings will be cleared. Refer to the Troubleshooting Guide for information on backing up the CMOS settings. NOTE: Batteries, battery Replace the computer access panel. 5. Plug in the computer and turn on power to the computer. 6. Reset the date and time, your passwords, and - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 58
computer access panel. 4. Plug in the computer and turn on power to the computer. 5. Reset the date and time, your passwords, and any special system setups, using Computer Setup. Refer to the Computer Setup (F10) Utility Guide. 50 Chapter 3 Removal and Replacement Procedures Microtower (MT) Chassis - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 59
Modify the boot order of bootable devices such as hard drives, diskette drives, optical drives, or USB flash media devices. ● Restrict a device from booting the unit. ● Run hard drive self-tests. ● Establish a supervisor password that controls access to Computer Setup (F10) Utility and the settings - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 60
previous screen, press Esc. CAUTION: Do NOT turn the computer power OFF while the ROM is saving the Computer Setup (F10) F10 Setup screen. Computer Setup-Main NOTE: Support for specific Computer Setup options may vary depending you to set drive A to: ● Disabled ● 1.44 MB 3.5" ● Not - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 61
◦ SMART Extended Self-Test System Information (view only) ● Installed Memory ● Memory Bank 1 ● BIOS Revision ● Core Version ● Model Number ● Serial Number ● Product Number ● Asset Tag Computer Setup-Advanced NOTE: Support for specific Computer Setup options may vary depending on the hardware - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 62
boot display device when more than 2 video options are offered by the system: ● PCI ● PCI-Ex16 ● 32 MB ● 64 MB ● 128 MB SATA Controller Allows you to disable/enable the SATA Controller. USB Ports Allows you to disable/enable the USB ports. Onboard LAN Allows you to disable/enable onboard LAN - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 63
power loss: ● Stay Off ● Power On ● Auto Disables/enables XD (eXecute Disable) bit. NOTE: The XD bit is a technology used in to separate areas of memory for use by either storage of processor instructions that code. Computer Setup-Boot NOTE: Support for specific Computer Setup options may vary - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 64
boot device priority within hard drives. Floppy Group Boot Priority Specifies boot device priority within removable devices. Network Group Boot Priority Specifies boot device priority within bootable network devices. Computer Setup-Exit NOTE: Support for specific Computer Setup options - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 65
support. ● Run the HP diagnostic tool. ● Run the hard drive self-test in Computer Setup. Refer to the Computer Setup (F10) Utility Guide for more information. ● Listen for beeps from the computer. The beeps are error codes that will help you diagnose the problem. Refer to Interpreting Power - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 66
of the drivers loaded. When booting the operating system, use "Last Known Configuration." ● Refer to the comprehensive online technical support at http://www.hp.com/support. ● Refer to Helpful Hints on page 58 in this guide. To assist you in resolving problems online, HP Instant Support Professional - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 67
to power on automatically as soon as power is restored in Computer Setup. If it does not restart, press the power Problems on page 77 for instructions. ● Be sure that all the needed device drivers have been installed. For example, if you are using a printer, you need a driver for that model printer - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 68
power button or press any key. CAUTION: When attempting to resume from standby mode, do not hold down the power button Control Panel (Computer Setup can also be used to update the RTC date and time). If the problem persists, replace the RTC battery. See the Hardware Reference Guide for instructions - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 69
. Solution 1. Check the F10 BIOS settings to make sure the internal powered on and that the speakers' volume control is set correctly. 3. Use the system volume control manually disabling the Smart Cover Lock, is available from HP. You will need the FailSafe Key in case of forgotten password, power - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 70
Problems (continued) Poor performance is experienced. Cause Solution Hard drive fragmented. Defragment hard drive. Program previously accessed did not release reserved memory Restart the computer. back to the system. Virus resident on the hard drive B Troubleshooting Without Diagnostics - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 71
voltage. Proper voltage setting depends on your region. 2. Remove the expansion cards one at a time and see if the system powers on. 3. Replace the system board. OR Press and hold the power button for less than 4 seconds. If the hard drive LED does not turn on green then: 1. Check that the unit is - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 72
reseller or service provider. 1. Check that the voltage selector, located on the rear of the power supply (some problem by removing ALL attached devices (such as hard drives or optical drives, and expansion cards). Power on the system. If the system enters the POST, then power off and replace one - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 73
-click on a drive. Select Properties then problem. Cause Solution Either the directory structure is bad or there is a problem drive. Select Properties then select the Tools tab. Under Error-checking click Check Now. Drive driver problem. If it is not listed, the probable cause is a hardware problem - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 74
"Shut Down" procedure. If this fails, press the power button for four or more seconds to turn off the power. To restart the computer, press the power button again. Solving Media Card Reader Problems Table B-4 Solving Media Card Reader Problems Media card will not work in a digital camera after - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 75
PRO card is not in the locked position. Unable to access data on the media card after inserting it into a slot. Cause Solution The media card is not inserted properly, is inserted in the wrong slot, or is not supported on the corresponding drive icon, and select turning the PC on for Problems 67 - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 76
listed in the following table. Table B-5 Solving Display Problems Blank screen (no video). Cause Monitor is not turned power button for more than four seconds. Otherwise, the computer will shut down and you will lose any unsaved data. 1. In Windows XP Control Troubleshooting Without Diagnostics - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 77
Reseat DIMMs. Power on the system. 2. Replace DIMMs one at a time to isolate the faulty module. 3. Replace third-party memory with HP memory. 4. controller was upgraded, the correct graphics Install the video drivers included in the upgrade kit. drivers may not be loaded. Solving Display Problems - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 78
Problems came with the monitor for instructions. Image is not centered that the computer power is off while supports. Restart the computer and enter Safe Mode. Change the settings to a supported setting then restart the computer so that the new settings take effect. 70 Appendix B Troubleshooting - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 79
coil to be activated when the monitor is powered on. Clicking noise coming from inside a CRT -screen display menu. graphics card. 2. Manually synchronize the Clock and Clock Phase on- . Cause The font you are using does not support that particular symbol. Solution Use the Character Map to - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 80
B-6 Solving Audio Problems Sound cuts in and out. Cause Processor resources are being used by other open applications. Direct sound latency, common in many media player applications. Solution Shut down all open processor-intensive applications. In Windows XP only: 1. From the Control Panel, select - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 81
output connector. The rear audio output connector is for powered audio devices and is not designed for headphone use. Printer Problems Printer will not print. Cause Solution Printer is not turned on and online. Turn the printer on and make sure it is online. The correct printer drivers - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 82
printer driver for the application. Reconnect all cables. Reset the printer by turning it off for one minute, then turn it back on. Printer is offline. Cause The printer may be out of paper. Solution Check the paper tray and refill it if it is empty. Select online. 74 Appendix B Troubleshooting - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 83
following table. Table B-8 Solving Keyboard Problems Keyboard commands and typing are not recognized 1. On the Windows XP Desktop, click Start > Shut Down. On the Windows Vista Desktop, click Start, click the is in standby mode. Press the power button to resume from standby mode. CAUTION: When - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 84
Table B-9 Solving Mouse Problems Mouse does not respond to terms and conditions. Computer is in standby mode. Press the power button to resume from standby mode. CAUTION: When attempting to resume from standby mode, from most computer stores. 76 Appendix B Troubleshooting Without Diagnostics - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 85
Hardware Installation Problems You may need to reconfigure the computer when you add or remove hardware, such as an additional drive or expansion Hardware Wizard and follow the instructions that appear on the screen. WARNING! When the computer is plugged into an AC power source, voltage is always - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 86
problems. 3. If you still cannot resolve the issue, contact Customer Support. The computer emits one short beep then one Power on the system. 2. Replace the graphics card. 3. Replace the system board. For systems with integrated graphics, replace the system board. 78 Appendix B Troubleshooting - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 87
Click the Properties button. 6. Click the Configure button. 7. Click the Power Management tab, then select the check box to Allow this device to wake the computer. NOTE: Wake-on-LAN is only supported from the S1, S3 and S4 states. It is not supported from the S5 state. Solving Network Problems 79 - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 88
connector. There is a problem with the cable or a device at the other end Ensure that the cable and device at the other end are of the cable. operating correctly. The network controller is defective. Contact an authorized service provider. 80 Appendix B Troubleshooting Without Diagnostics - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 89
the network drivers. The cable is not securely connected. Ensure that the cable is securely attached to the network connector and that the other end of the cable is securely attached to the correct device. The network controller is defective. Contact an authorized service provider. New - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 90
. To avoid damage to the DIMMs or the system board, you must unplug the computer power cord before attempting to reseat, install, or remove a DIMM. For those systems that support ECC memory, HP does not support mixing ECC and non-ECC memory. Otherwise, the computer will not boot the operating system - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 91
or is bad. 1. Reseat DIMMs. Power on the system. 2. Replace DIMMs one at a time to isolate the faulty module. 3. Replace third-party memory with HP memory. 4. Replace the system board. Solving CD-ROM and DVD Problems If you encounter CD-ROM or DVD problems, see the common causes and solutions - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 92
or DVD with a CD cleaning kit, available from most computer stores. Windows does not detect the CD-ROM or DVD-ROM drive. 1. Use Device Manager to remove or uninstall the device. 2. Restart the computer and let Windows detect the CD or DVD driver. 84 Appendix B Troubleshooting Without Diagnostics - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 93
was not properly seated before power-up. Ensure the device is fully inserted into the USB port before applying power to the system System will not boot from USB flash drive. Cause Boot order is the "Replicating the Setup" section of the Service Reference Guide. Solving USB Flash Drive Problems 85 - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 94
The computer boots to DOS after making a bootable flash drive. Cause Solution Flash drive is bootable. Install the flash drive only after the operating system boots. 86 Appendix B Troubleshooting Without Diagnostics - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 95
. Table B-15 Solving Front Panel Component Problems A USB device, 1394 device, headphone, power. If the USB device requires AC power, be sure one end is connected to the device and one end is connected to a live outlet. The correct device driver is not installed. 1. Install the correct driver - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 96
Problems Unable to connect to the Internet. Cause Solution Internet Service "power" LED light on the front of the cable/DSL modem. Cable/DSL service the connection is good, the "PC" LED light on the front of 1. Select Start > Control Panel. 2. Click Network Troubleshooting Without Diagnostics - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 97
. Solution Verify that the modem is connected and communicating properly. Windows XP 1. Select Start > Control Panel. 2. Double-click System. 3. Click the Hardware tab. 4. In the Device Manager area response indicates the modem is connected and working properly. Solving Internet Access Problems 89 - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 98
drivers have been installed. ● If you have installed an operating system other than the factory-installed operating system, check to be sure it is supported on the system. If you encounter software problems HP logo screen has appeared. Cause Solution System files may be damaged. Scan hard drive - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 99
always applied to the system board. To reduce the risk of personal injury from electrical shock and/or hot surfaces, be sure to disconnect the power cord from the wall outlet and allow the internal system components to cool before touching. Color Green Green Green Clear Clear Green Red Red Red - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 100
jumper and other system board components, see the Illustrated Parts & Service Map (IPSM). The IPSM can be downloaded from http://www.hp.com/support. 5. Remove the jumper. 6. Plug in the computer and turn on power. 7. When you see the HP logo screen, turn off the computer. This clears the current - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 101
Guide for power cord is connected. NOTE: The CMOS jumper is light green so that it can be easily identified. For assistance locating the password jumper and other system board components, see the Illustrated Parts & Service Map (IPSM). The IPSM can be downloaded from http://www.hp.com/support - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 102
C Connector Pin Assignments This appendix contains the pin assignments for many computer and workstation connectors. Some of these connectors may not be used on the product being serviced. 4-Pin Power (for CPU) Connector and Icon Pin Signal 1 GND 2 GND 3 +12V CPU 4 -12V CPU Ethernet - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 103
Microphone Connector and Icon (1/8" miniphone) Headphone Connector and Icon (1/8" miniphone) Line-in Audio Connector and Icon (1/8" miniphone) Line-out Audio Connector and Icon (1/8" miniphone) Pin 1 (Tip) 2 (Ring) 3 (Shield) Signal Audio_left Audio_Right Ground Pin 1 (Tip) 2 (Ring) 3 (Shield) - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 104
Transmit Data 4 Data Terminal Ready 5 Signal Ground 6 Data Set Ready 7 Request to Send 8 Clear to Send 9 Ring Indicator (5V if powered) Monitor Connector and Icon Pin Signal 1 Red Analog 2 Green Analog 3 Blue Analog 4 Not used 5 Ground 6 Ground 7 Ground 8 Ground Pin - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 105
24-Pin Power Connector Pin Signal 1 +3.3V 2 +3.3V 3 GND 4 +5V 5 GND 6 +5V Pin Signal 7 GND 8 POK 9 +5 Vaux 10 +12V 11 +12V 12 +3.3V Pin Signal 13 +3.3V 14 -12V 15 GND 16 PSON 17 GND 18 GND Pin Signal 19 GND 20 open 21 +5V 22 +5V 23 +5V 24 GND 24-Pin Power 97 - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 106
PCI Express x1, x4, x8, and x16 PCI Express Connector Pin A Pin Signal 1 PRSNT1 2 +12V 3 +12V 4 GND 5 JTAG2 26 PERn(2) 27 GND 28 GND 29 PERp3 30 PERn3 51 GND 52 PERp8 53 PERN8 54 GND 55 GND Pin Signal 6 JTAG3 7 JTAG4 8 JTAG5 9 +3.3V 10 +3.3V 31 GND 32 RSVD 33 RSVD 34 GND 35 PERp4 56 PERp9 57 PERn9 - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 107
76 PERp14 81 PERn15 77 PERn14 82 GND 78 GND 79 GND 80 PERp15 Pin B information is on the next page NOTE: x1 PCI Express uses pins 1-18 x4 PCI Express uses pins 1-32 x8 PCI Express uses pins 1-49 x16 PCI Express uses pins 1-8 PCI Express x1, x4, x8, and x16 PCI Express Connector Pin B - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 108
51 PETn8 56 GND 52 GND 57 GND 53 GND 58 PETp10 54 PETp9 59 PETn10 55 PETn9 60 GND 76 GND 81 PRSNT2# 77 GND 82 RSVD 78 PETp15 79 PETn15 80 GND Pin B information is on the next page NOTE: x1 PCI Express uses pins 1-18 x4 PCI Express uses pins 1-32 x8 PCI Express uses pins 1-49 x16 - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 109
and precautions described in this chapter is essential for proper service. CAUTION: 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 - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 110
. ● Heel straps/Toe straps/Boot straps can be used at standing workstations and are compatible with most types of shoes or boots. On conductive floors or dissipative floor mats, use them on both feet with a maximum of one-megohm ± 10% resistance between the operator and ground. Static Shielding - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 111
laminate. Handle them only at static-free work areas. ● Turn off power and input signals before inserting and removing connectors or test equipment. ● workstations with ground cord of one-megohm +/- 10% resistance ● Static-dissipative table or floor mats with hard tie to ground ● Field service - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 112
the keyboard, with the keyboard feet down, directly against the front of the desktop unit as this also restricts airflow. ● Occasionally clean the air vents on the monitor with any type of material. ● Install or enable power management functions of the operating system or other software, including - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 113
the keys or the keyboard body, follow the procedures described in Cleaning the Computer Case on page 105. When cleaning debris from under the keys, review all rules in General Cleaning Safety Precautions on page 105 before following these procedures: Routine Care 105 - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 114
page 105. Cleaning the Mouse Before cleaning the mouse, ensure that the power to the computer is turned off. ● Clean the mouse ball by first follow the procedures in Cleaning the Computer Case on page 105. Service Considerations Listed below are some of the considerations that you should keep - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 115
locations. CAUTION: Metric screws have a black finish. U.S. screws have a silver finish and are used on hard drives only. CAUTION: As each subassembly is or snagged by parts being removed or replaced. CAUTION: When servicing this computer, ensure that cables are placed in their proper location - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 116
excessive force when inserting a drive. ● Avoid exposing a hard drive to liquids, temperature extremes, power to the real-time clock and has a minimum lifetime of about three years. See the appropriate removal and replacement chapter for the chassis you are working on in this guide for instructions - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 117
Guidelines and Features NOTE: HP only supports the use of SATA hard drives on these models of computer. No Parallel ATA (PATA) drives are supported. SATA Hard Drives Serial ATA Hard Drive Characteristics Number of pins/conductors in data cable Number of pins in power cable Maximum data cable - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 118
while calculations by Microsoft are bytes to the base 2. File System FAT 32 NTFS Drive/Partition Capacity Limits Controller Type Operating System ATA Windows Vista/Windows 7 ATA Windows Vista/Windows 7 Maximum Size Partition Drive 32 GB 2 TB 2 TB 2 TB 110 Appendix E Serial ATA (SATA - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 119
and a nominal voltage rating of 125 or 250 volts AC, as required by each country's power system. 3. The diameter of the wire must be a minimum of 0.75 mm2 or cord must be between 1.8 m (6 feet) and 3.6 m (12 feet). The power cord should be routed so that it is not likely to be walked on or pinched - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 120
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 wall plug) must bear the certification mark of the agency responsible for evaluation in the - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 121
noise Idle, fixed disk drive spinning DVD-ROM sequential reads LWAd = 43 dB LWAd = 55 dB Desktop average LpAm = 32 dBA Deskside average LpAm = 44 dBA NOTE: Listed are the declared A-weighted sound power levels (LWAd) and declared average desktop - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 122
power cord set requirements 112 Customer Support 57 D disassembly preparation 9 diskette drive installing 30 removing 29 drive connectors 26 drives removal and replacement 38 front panel problems 87 G general problems 60 grounding methods 102 H hard drive installing 34 proper handling 107 removing - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 123
42 spare part number 3, 6, 42 power switch/LED removal and replacement 39 power switch/LED assembly spare part number 3, 7, 39 preparation for disassembly 9 printer problems 73 problems audio 72 CD-ROM or DVD 83 flash drive 85 front panel 87 general 60 hard drive 65 hardware installation 77 Internet - HP Pro 4500 | Maintenance & Service Guide: HP Pro 4500 Microtower Business P - Page 124
board removal and replacement 47 SATA connectors 109 spare part number 4, 8 system board drive connections 26 system fan spare part number 41, 47 T tamper-proof screws tool 107 temperature control 104 tools, servicing 107 Torx T15 screwdriver 107 U USB pin assignments 94 V ventilation, proper 104
Maintenance & Service Guide
HP Pro 4500 Microtower Business PCs