HP 500B, 505B, NV517UT, Compaq 500B, Compaq 505B Maintenance And Service Manual
Maintenance & Service Guide
Compaq 500B and 505B Minitower Business PC
© Copyright 2009 Hewlett-Packard
Development Company, L.P. The
information contained herein is subject to
change without notice.
Microsoft and Windows are trademarks of
Microsoft Corporation in the U.S. and other
countries.
The only warranties for 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 shall not be liable for technical
or editorial errors or omissions contained
herein.
This document contains proprietary
information that is protected by copyright. No
part of this document may be photocopied,
reproduced, or translated to another
language without the prior written consent of
Hewlett-Packard Company.
Compaq 500B and 505B Minitower
Business PC
First Edition (September 2009)
Document Part Number: 591882-001
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 off in this manner provides important supplemental information.
iii
iv About This Book
Table of contents
1 Product Description
Chassis Designations ........................................................................................................................... 1
Microtower (MT) ................................................................................................................... 1
Product Description .............................................................................................................................. 2
2 Removal and Replacement Procedures Microtower (MT) Chassis
Preparation for Disassembly ................................................................................................................ 3
Access Panel ........................................................................................................................................ 4
Front Bezel ........................................................................................................................................... 6
Memory ................................................................................................................................................ 8
DDR3-SDRAM DIMMs ........................................................................................................ 8
Populating DIMM Sockets ................................................................................................... 9
Installing Memory Modules ................................................................................................ 10
Expansion Cards ................................................................................................................................ 12
Cable Management ............................................................................................................................ 19
Cable Connections ............................................................................................................ 20
Drives ................................................................................................................................................. 21
Installing Additional Drives ................................................................................................. 21
System Board Drive Connections ..................................................................... 22
Removing an Optical Drive ............................................................................... 23
Replacing an Optical Drive ................................................................................ 25
Removing a Hard Drive ..................................................................................... 26
Replacing a Hard Drive ..................................................................................... 29
Front I/O and USB Panel Housing Assembly ..................................................................................... 31
Power Switch/LED Assembly ............................................................................................................. 32
System Fan ........................................................................................................................................ 33
Heat sink assembly (Intel) — Model 500B ......................................................................................... 34
Heat sink assembly (AMD) — Model 505B ........................................................................................ 35
Processor (Intel) — Model 500B ........................................................................................................ 36
Processor (AMD) — Model 505B ....................................................................................................... 38
Power Supply ..................................................................................................................................... 39
System Board ..................................................................................................................................... 45
Battery ................................................................................................................................................ 46
Type 1 Battery Holder ........................................................................................................ 47
v
Type 2 Battery Holder ........................................................................................................ 48
Type 3 Battery Holder ........................................................................................................ 48
Appendix A Computer (F10) Setup
Model 500B — Computer Setup (F10) Utilities .................................................................................. 50
Using Computer Setup (F10) Utilities ................................................................................ 50
Computer Setup—Main ..................................................................................................... 51
Computer Setup—Advanced ............................................................................................. 52
Computer Setup—Power ................................................................................................... 53
Computer Setup—Boot ...................................................................................................... 54
Computer Setup—Exit ....................................................................................................... 54
Model 505B — Computer Setup (F10) Utilities .................................................................................. 55
Using Computer Setup (F10) Utilities ................................................................................ 55
Computer Setup—Main ..................................................................................................... 56
Computer Setup—Advanced ............................................................................................. 57
Computer Setup—Power ................................................................................................... 58
Computer Setup—Boot ...................................................................................................... 59
Computer Setup—Exit ....................................................................................................... 59
Appendix B Diagnostics
Interpreting Diagnostic Beep Codes ................................................................................................... 61
LED Codes ......................................................................................................................................... 62
Accessing HP Insight Diagnostics ...................................................................................................... 63
Testing Memory Modules ................................................................................................................... 63
POST Error/Warning Messages ......................................................................................................... 64
Power Button/Power Button LED ....................................................................................................... 65
Using the Setup Utility ........................................................................................................................ 65
BIOS Updates .................................................................................................................................... 66
Clearing CMOS .................................................................................................................................. 66
Appendix C Troubleshooting Without Diagnostics
Safety and Comfort ............................................................................................................................ 68
Before You Call for Technical Support ............................................................................................... 68
Helpful Hints ....................................................................................................................................... 69
Solving General Problems .................................................................................................................. 70
Solving Power Problems .................................................................................................................... 71
Solving Hard Drive Problems ............................................................................................................. 72
Solving Media Card Reader Problems ............................................................................................... 73
Solving Display Problems ................................................................................................................... 74
Solving Audio Problems ..................................................................................................................... 75
Solving Keyboard and Mouse Problems ............................................................................................ 75
Solving Network Problems ................................................................................................................. 76
Solving Memory Problems ................................................................................................................. 77
vi
Solving CD-ROM and DVD Problems ................................................................................................ 78
Solving Front Panel Component Problems ........................................................................................ 79
Appendix D Connector Pin Assignments
4-Pin Power (for CPU) ........................................................................................................................ 80
Ethernet BNC ..................................................................................................................................... 80
USB .................................................................................................................................................... 80
Microphone ......................................................................................................................................... 81
Headphone ......................................................................................................................................... 81
Line-in Audio ...................................................................................................................................... 81
Line-out Audio .................................................................................................................................... 81
Monitor ............................................................................................................................................... 82
24-Pin Power ...................................................................................................................................... 82
PCI Express ...................................................................................................................................... 83
PCI Express ...................................................................................................................................... 84
Appendix E Routine Care and Disassembly Preparation
Electrostatic Discharge Information .................................................................................................... 85
Generating Static ............................................................................................................... 85
Preventing Electrostatic Damage to Equipment ................................................................ 86
Personal Grounding Methods and Equipment ................................................................... 86
Grounding the Work Area .................................................................................................. 87
Recommended Materials and Equipment .......................................................................... 87
Operating Guidelines .......................................................................................................................... 88
Routine Care ...................................................................................................................................... 89
General Cleaning Safety Precautions ................................................................................ 89
Cleaning the Computer Case ............................................................................................ 89
Cleaning the Keyboard ...................................................................................................... 89
Cleaning the Monitor .......................................................................................................... 90
Cleaning the Mouse ........................................................................................................... 90
Service Considerations ...................................................................................................................... 90
Power Supply Fan ............................................................................................................. 90
Tools and Software Requirements .................................................................................... 90
Screws ............................................................................................................................... 91
Cables and Connectors ..................................................................................................... 91
Hard Drives ........................................................................................................................ 91
Lithium Coin Cell Battery ................................................................................................... 92
Appendix F Serial ATA (SATA) Drive Guidelines and Features
SATA Hard Drives .............................................................................................................................. 93
SATA Hard Drive Cables .................................................................................................................... 93
SATA Data Cable .............................................................................................................. 93
SMART ATA Drives ............................................................................................................................ 94
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Hard Drive Capacities ........................................................................................................................ 94
Appendix G Power Cord Set Requirements
General Requirements ....................................................................................................................... 95
Japanese Power Cord Requirements ................................................................................................ 95
Country-Specific Requirements .......................................................................................................... 96
Appendix H Specifications
Index ................................................................................................................................................................... 99
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1 Product Description
Chassis Designations
The following subsection illustrates the 500B and 505B chassis design.
Microtower (MT)
Chassis Designations 1
Product Description
The Compaq 500B MT is based on Intel PCA and processor technology, whereas the Compaq 505B
MT is based on AMD technology. The following table lists the notable features of the PCs.
Compaq 500B MT features:
●
Intel Core 2 Duo processors
●
Intel G41/ICH7 Express chipset
●
Intel GMA X4500 integrated graphics controller
Compaq 505B MT features:
●
AMD AM3 Athlon II and Phenom II processors
●
nVidia MCP61P
●
nVidia GeForce 6150SE integrated graphics controller
Both PCs feature:
●
Support for up to 4GB of DDR3 SDRAM in two dual-channel DIMM slots
●
One PCI-E x16, two PCI-E x1, one PCI expansion slot
●
300W passive Power Factor Correction (PFC) and non-PFC power supply
●
Six USB 2.0 ports
●
Realtek 10/100 Mbps Ethernet controller
●
Integrated 5.1 channel audio
●
Support for HP Kensington MicroSaver cable lock
●
Windows 7 logo compliance
2 Chapter 1 Product Description
2 Removal and Replacement Procedures
Microtower (MT) Chassis
Adherence to the procedures and precautions described in this chapter is essential for proper service.
After completing all necessary removal and replacement procedures, run the Diagnostics utility to verify
that all components operate properly.
NOTE: Not all features listed in this guide are available on all computers.
Preparation for Disassembly
1. Close any open software applications.
2. Exit the operating system.
3. Remove any media from the computer.
4. Turn off the computer and any peripheral devices that are connected to it.
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 system is plugged into an active AC outlet. In some systems the cooling fan is on even
when the computer is in the “Standby,” or “Suspend” modes. The power cord should always be
disconnected before servicing a unit.
5. Disconnect the power cord from the electrical outlet and then from the computer.
6. Disconnect all peripheral device cables from the computer.
NOTE: During disassembly, label each cable as you remove it, noting its position and routing.
Keep all screws with the components removed.
CAUTION: The screws used in the computer are of different thread sizes and lengths; using the
wrong screw in an component may damage the component or the computer.
Preparation for Disassembly 3
Access Panel
1. Prepare the computer for disassembly (Preparation for Disassembly on page 3).
2. Remove the side cover by loosening the screw that connects the cover to the computer.
Figure 2-1 Removing the Computer Access Panel
3. Grasp the handle on the side cover and pull towards the back of the computer. Slide the cover
about 2.4 cm (1 inch) to remove it.
NOTE: You may want to lay the computer on its side to install internal parts. Be sure the side
with the access panel is facing up.
Figure 2-2 Removing the Computer Access Panel
4 Chapter 2 Removal and Replacement Procedures Microtower (MT) Chassis
4. Remove the side panel by lifting it away from the computer.
Figure 2-3 Removing the Computer Access Panel
To replace the access panel, reverse the removal steps.
Access Panel 5
Front Bezel
1. Prepare the computer for disassembly (Preparation for Disassembly on page 3).
2. Remove the access panel (
Access Panel on page 4).
3. Pull each of the three side tabs that secure the front bezel to the computer, to release the front
bezel.
Figure 2-4 Removing the Front Bezel
6 Chapter 2 Removal and Replacement Procedures Microtower (MT) Chassis
4. Swing the front bezel out to remove from the computer.
Figure 2-5 Removing the Front Bezel
NOTE: The appearance of the front bezel may vary.
To reinstall the front bezel, reverse the removal procedure.
Front Bezel 7
Memory
The computer comes with double data rate 3 synchronous dynamic random access memory (DDR3SDRAM) dual inline memory modules (DIMMs).
DDR3-SDRAM DIMMs
The memory sockets on the system board can be populated with up to two industry-standard DIMMs.
These 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 4 GB of memory configured in a highperforming dual channel mode.
For proper system operation, the DDR3-SDRAM DIMMs must be:
●
industry-standard 240-pin
●
unbuffered PC3-10600, 1333 MHz-compliant
●
1.5 volt DDR3-SDRAM DIMMs
The DDR3-SDRAM DIMMs must also:
●
support CAS latency 9 DDR3 1333 Mhz (9-9-9 timing)
●
contain the mandatory JEDEC SPD information
In addition, the computer supports:
●
512Mbit, 1Gbit, and 2Gbit non-ECC memory technologies
●
single-sided and double-sided DIMMs
●
DIMMs constructed with x8 and x16 DDR devices; DIMMs constructed with x4 SDRAM are not
supported
NOTE: The system will not operate properly if you install unsupported DIMMs.
8 Chapter 2 Removal and Replacement Procedures Microtower (MT) Chassis
Populating DIMM Sockets
There are two DIMM sockets on the system board.
Figure 2-6 DIMM Socket Locations — 500B
Figure 2-7 DIMM Socket Locations — 505B
Table 2-1 DIMM Socket Locations
Item Description Socket Color
1 DIMM1 socket, Channel A (populate first) Blue
2 DIMM2 socket, Channel A Blue
NOTE: A DIMM must occupy the DIMM1 socket.
Memory 9
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 active AC outlet. Adding
or removing memory modules while voltage is present may cause irreparable damage to the memory
modules or system board.
The memory module sockets have gold-plated metal contacts. When upgrading the memory, it is
important to use memory modules with gold-plated metal contacts to prevent corrosion and/or oxidation
resulting from having incompatible metals in contact with each other.
Static electricity can damage the electronic components of the computer or optional cards. Before
beginning these procedures, ensure that you are discharged of static electricity by briefly touching a
grounded metal object.
When handling a memory module, be careful not to touch any of the contacts. Doing so may damage
the module.
1. Prepare the computer for disassembly (Preparation for Disassembly on page 3).
2. Remove the access panel (
Access Panel on page 4).
3. Locate the memory module sockets on the system board (500B shown).
WARNING! To reduce risk of personal injury from hot surfaces, allow the internal system
components to cool before touching.
Figure 2-8 DIMM locations (500B shown)
10 Chapter 2 Removal and Replacement Procedures Microtower (MT) Chassis
4. Open both latches of the memory module socket (1), and insert the memory module into the
socket (2).
Figure 2-9 Installing a DIMM
NOTE: A memory module can be installed in only one way. Match the notch on the module with
the tab on the memory socket.
5. Push the DIMM module down firmly into the socket, ensuring that the module is fully inserted and
properly seated. The DIMM must be pushed all the way down into the socket and sit evenly in the
socket to avoid memory corruption. Make sure the latches are in the closed position (3).
6. Repeat steps 4 and 5 to install any additional modules.
7. Replace the computer access panel.
8. Reconnect the power cord and any external devices, then turn on the computer. The computer
should automatically recognize the additional memory when you turn on the computer.
9. Lock any security devices that were disengaged when the access panel was removed.
Memory 11
Expansion Cards
The computer has one PCI expansion slot, two PCI Express x1 expansion slots, and one PCI Express
x16 expansion slot. The expansion slots accommodate full-height or half-height expansion cards.
Figure 2-10 Expansion Slot Locations — 500B
Figure 2-11 Expansion Slot Locations — 505B
Table 2-2 Expansion Slot Locations
Item Description
1 PCI Express x16 expansion slot
2 PCI Express x1 expansion slot
3 PCI Express x1 expansion slot
4 PCI expansion slot
12 Chapter 2 Removal and Replacement Procedures Microtower (MT) Chassis
NOTE: You can install a PCI Express x1, x4, x8, or x16 expansion card in the PCI Express x16
expansion slot.
To remove, replace, or add an expansion card:
1. Prepare the computer for disassembly (
Preparation for Disassembly on page 3).
2. Remove the access panel (
Access Panel on page 4).
3. Locate the add-in cards at the back of the computer.
Figure 2-12 Locating the expansion card slots
4. On the back of the computer, remove the screw from the bracket cover for the add-in cards.
Figure 2-13 Opening the slot cover lock
Expansion Cards 13
5. Remove the bracket cover.
Figure 2-14 Removing the bracket cover
6. If you are removing a graphics card, press on the latch to release it.
Figure 2-15 Press the latch to release the graphics card
14 Chapter 2 Removal and Replacement Procedures Microtower (MT) Chassis
7. Remove the graphics card from the card slot.
NOTE: If you are removing a PCI Express x16 card, pull the retention arm on the back of the
expansion socket away from the card and carefully rock the card back and forth until the connectors
pull free from the socket. Be sure not to scrape the card against the other components.
Figure 2-16 Removing the graphics card from the slot
8. For other add-in cards, move the card back and forth gently to free it from the card slot in the
computer.
Figure 2-17 Rocking the card to Remove
Expansion Cards 15
9. Lift the card out of the computer.
Figure 2-18 Lifting the card from the computer
10. If present, remove any cables connected to the add-in card.
Figure 2-19 Removing cables from the card
11. Store the removed card in anti-static packaging.
12. If you are not installing a new expansion card, install an expansion slot cover to close the open
slot.
CAUTION: After removing an expansion card, you must replace it with a new card or expansion
slot cover for proper cooling of internal components during operation.
16 Chapter 2 Removal and Replacement Procedures Microtower (MT) Chassis
13. 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 the system board.
Figure 2-20 Installing an expansion card
NOTE: When installing an expansion card, press firmly on the card so that the whole connector
seats properly in the expansion card slot.
14. If you are replacing a graphics card, verify that the latch in the computer snaps back into place.
Figure 2-21 Replacing a graphics card
Expansion Cards 17
15. Press straight down until the card is fully seated in the card slot.
Figure 2-22 Seating the card
16. Replace the bracket cover on the back of the computer.
Figure 2-23 Replacing the bracket cover
18 Chapter 2 Removal and Replacement Procedures Microtower (MT) Chassis
17. Replace the screw to secure the bracket to the back of the computer.
Figure 2-24 Replacing the bracket screw
18. Connect external cables to the installed card, if needed. Connect internal cables to the system
board, if needed.
19. Reconfigure the computer, if necessary. Refer to the Computer Setup (F10) Utility Guide for
instructions on using Computer Setup.
Cable Management
Always follow good cable management practices when working inside the computer.
●
Keep cables away from major heat sources like the heatsink.
●
Do not jam cables on top of expansion cards or memory modules. Printed circuit cards like these
are not designed to take excessive pressure on them.
●
Some flat ribbon cables come prefolded. Never change the folds on these cables.
●
Never bend a SATA data cable tighter than a 30 mm (1.18 in) radius.
●
Never crease a SATA data cable.
●
Do not rely on components like the drive cage, power supply, or computer cover to push cables
down into the chassis. Always position the cables to lay properly by themselves.
When removing the power supply power cable from the connector on the system board, always follow
these steps:
1. Squeeze on the top of the retaining latch attached to the cable end of the connector (1).
2. Grasp the cable end of the connector and pull it straight up (2).
CAUTION: Always pull the connector - NEVER pull on the cable. Pulling on the cable could
damage the cable and result in a failed power supply.
Cable Management 19
Cable Connections
System board connectors are color-coded to make it easier to find the proper connection.
Table 2-3 Cable connections — 500B
Connector Name Connector Color Description
ATX_POWER white power supply, 24-pin
ATX_12V white power supply, 4-pin
SYS_FAN1 brown chassis fan
CPU_FAN white heat sink fan
F PANEL black front power button/LED
F_USB1 white front I/O USB cable
F_AUDIO yellow front I/O audio
SATA1 dark blue hard drive
SATA2 white optical drive
PCI2 white PCI expansion slot
PCIE1X black PCIe x1 expansion slot
PCIE1X1 black PCIe x1 expansion slot
PCIE16X black PCIe x16 expansion slot
Table 2-4 Cable connections — 505B
Connector Name Connector Color Description
ATXPOWER white power supply, 24-pin
ATXCPU white power supply, 4-pin
CHASSIS_FAN1 brown chassis fan
CPU FAN white heat sink fan
F_PANEL black front power button/LED
F_USB2 white front I/O USB cable
F_AUDIO yellow front I/O audio
SATA0 dark blue hard drive
SATA1 white optical drive
PCI1 white PCI expansion slot
PCIE_X1_1 black PCIe x1 expansion slot
PCIE_X1_2 black PCIe x1 expansion slot
PCIE X16 black PCIe x16 expansion slot
20 Chapter 2 Removal and Replacement Procedures Microtower (MT) Chassis
Drives
The computer supports one optical drive and one hard drive.
This section describes the procedure for replacing or upgrading the drives. A Torx T-15 screwdriver is
needed to remove and install the guide screws on a drive.
Installing Additional Drives
When installing additional drives, follow these guidelines:
●
Connect the primary SATA hard drive to the dark blue primary SATA connector on the system
board labeled SATA1 for model 500B, SATA0 for model 505B.
●
Connect the SATA optical drive to the white SATA connector on the system board labeled SATA2
on model 500B, SATA1 for model 505B.
CAUTION: To prevent loss of work and damage to the computer or drive:
If you are inserting or removing a drive, shut down the operating system properly, turn off the computer,
and unplug the power cord. Do not remove a drive while the computer is on or in standby mode.
Before handling a drive, ensure that you are discharged of static electricity. While handling a drive, avoid
touching the connector.
Handle a drive carefully; do not drop it.
Do not use excessive force when inserting a drive.
Avoid exposing a hard drive to liquids, temperature extremes, or products that have magnetic fields
such as monitors or speakers.
If a drive must be mailed, place the drive in a bubble-pack mailer or other protective packaging and label
the package “Fragile: Handle With Care.”
Drives 21
System Board Drive Connections
Refer to the following illustration and table to identify the system board drive connectors.
Figure 2-25 System Board Drive Connections — 500B
Figure 2-26 System Board Drive Connections — 505B
Table 2-5 System Board Drive Connections
No. System Board Label — 500B System Board Label — 505B Color
1 SATA1 SATA0 dark blue
2 SATA2 SATA1 white
22 Chapter 2 Removal and Replacement Procedures Microtower (MT) Chassis
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