Hewlett Packard V8L75EA User Manual

Maintenance and Service Guide
HP RP9 G1 Retail System
© Copyright 2016 HP Development Company, L.P.
ENERGY STAR® is a registered mark owned by the U.S. government. Microsoft and Windows are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries.
The information contained herein is subject to change without notice. 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.
First Edition: February 2016
Document Part Number: 834296-001
Product notice
This guide describes features that are common to most models. Some features may not be available on your computer.
Not all features are available in all editions of Windows 8. This computer may require upgraded and/or separately purchased hardware, drivers and/or software to take full advantage of Windows 8 functionality. See
http://www.microsoft.com for details.
This computer may require upgraded and/or separately purchased hardware and/or a DVD drive to install the Windows 7 software and take full advantage of Windows 7 functionality. See http://windows.microsoft.com/en-us/
windows7/get-know-windows-7 for details.
Software terms
By installing, copying, downloading, or otherwise using any software product preinstalled on this computer, you agree to be bound by the terms of the HP End User License Agreement (EULA). If you do not accept these license terms, your sole remedy is to return the entire unused product (hardware and software) within 14 days for a refund subject to the refund policy of your place of purchase.
For any further information or to request a full refund of the computer, please contact your local point of sale (the seller).
Safety warning notice
WARNING! To reduce the possibility of heat-related injuries or of overheating the device, do not place
the device directly on your lap or obstruct the device air vents. Use the device only on a hard, at surface. Do not allow another hard surface, such as an adjoining optional printer, or a soft surface, such as pillows or rugs or clothing, to block airow. Also, do not allow the AC adapter to contact the skin or a soft surface, such as pillows or rugs or clothing, during operation. The device and the AC adapter comply with the user-accessible surface temperature limits dened by the International Standard for Safety of Information Technology Equipment (IEC 60950-1).
iii
iv Safety warning notice
Table of contents
1 Product overview .......................................................................................................................................... 1
Standard features .................................................................................................................................................. 1
Unfolding the ergonomic stand ............................................................................................................................. 3
Rear components ................................................................................................................................................... 4
2 Illustrated parts catalog ................................................................................................................................ 5
Computer major components ................................................................................................................................ 5
Optional displays and USB devices ........................................................................................................................ 7
Cables and adapters .............................................................................................................................................. 8
Storage devices ...................................................................................................................................................... 9
Misc parts ............................................................................................................................................................. 10
3 Routine care, SATA drive guidelines, and disassembly preparation .................................................................. 11
Electrostatic discharge information .................................................................................................................... 11
Generating static ............................................................................................................................... 11
Preventing electrostatic damage to equipment ............................................................................... 12
Personal grounding methods and equipment .................................................................................. 12
Grounding the work area ................................................................................................................... 12
Recommended materials and equipment ........................................................................................ 13
Routine care and maintenance ............................................................................................................................ 13
Drivers and rmware ......................................................................................................................... 13
Operating guidelines ......................................................................................................................... 13
Environmental specications ............................................................................................................ 14
Before you begin ............................................................................................................................... 14
Cleaning the computer case .............................................................................................................. 14
Cleaning the monitor or touch screen ............................................................................................... 15
Cleaning I/O ports and fan area ......................................................................................................... 15
Cleaning the keyboard ....................................................................................................................... 15
Cleaning the mouse ........................................................................................................................... 15
Cleaning the MSR ............................................................................................................................... 16
Service considerations ......................................................................................................................................... 16
Power supply fan ............................................................................................................................... 16
Tools and software Requirements .................................................................................................... 16
Screws ............................................................................................................................................... 16
Cables and connectors ...................................................................................................................... 16
Hard Drives ........................................................................................................................................ 17
v
Lithium coin cell battery .................................................................................................................... 17
SATA hard drives .................................................................................................................................................. 17
SATA hard drive cables ......................................................................................................................................... 18
SATA data cable ................................................................................................................................. 18
SMART ATA drives ................................................................................................................................................ 18
Cable management .............................................................................................................................................. 18
4 Removal and replacement procedures ........................................................................................................... 19
Preparation for disassembly ............................................................................................................................... 19
Installing a port cover .......................................................................................................................................... 20
Removing and attaching the ergonomic and compact stands ........................................................................... 21
Routing cables (ergonomic stand) ....................................................................................................................... 24
Routing cables (compact stand) .......................................................................................................................... 24
Removing and replacing the power supply (ergonomic stand) .......................................................................... 25
Rear cover and shield ........................................................................................................................................... 28
Installing an optional HP integrated USB barcode scanner, magnetic strip reader (MSR), biometric
reader, or webcam ............................................................................................................................................... 29
Installing an optional HP integrated USB module on the sides or top of the display head ............. 29
Installing an optional HP integrated USB barcode scanner on the bottom of the display head ..... 31
Installing a 2 x 20 LCD or 7” LCD customer facing display (CFD) ......................................................................... 32
Installing a top mount CFD ................................................................................................................ 32
Installing a bottom mount CFD ......................................................................................................... 33
Installing memory ............................................................................................................................................... 35
DDR4-SDRAM SODIMMs .................................................................................................................... 35
Removing and installing a SODIMM .................................................................................................. 36
Removing and installing a 2.5-inch hard drive ................................................................................................... 37
Removing and installing an M.2 storage device .................................................................................................. 39
Replacing the battery .......................................................................................................................................... 41
WLAN module ...................................................................................................................................................... 42
Hard drive bracket ............................................................................................................................................... 43
VESA mount bracket ............................................................................................................................................ 44
Heat sink .............................................................................................................................................................. 46
Processor ............................................................................................................................................................. 47
Fan ........................................................................................................................................................................ 48
Rear trim .............................................................................................................................................................. 49
USB port ............................................................................................................................................................... 50
Speakers .............................................................................................................................................................. 51
Antennas .............................................................................................................................................................. 52
System board ....................................................................................................................................................... 53
System board callouts ....................................................................................................................... 56
Display panel assembly ....................................................................................................................................... 57
vi
Power board ......................................................................................................................................................... 59
5 Conguring the software .............................................................................................................................. 60
Touch screen calibration ...................................................................................................................................... 60
Calibration for Windows 7 Professional and Embedded POSReady 7 .............................................. 60
Calibration for Windows 8.1 Professional and Embedded 8.1 Industry Pro Retail .......................... 60
Calibration for Windows 10 Professional and Windows 10 IoT Enterprise for Retail ...................... 60
Conguring all optional HP integrated USB peripheral modules (HP integrated USB barcode scanner, magnetic strip reader (MSR), biometric reader, or webcam)
Conguring powered serial ports ........................................................................................................................ 61
6 Computer Setup (F10) Utility ........................................................................................................................ 62
Computer Setup (F10) Utilities ............................................................................................................................ 62
Using Computer Setup (F10) Utilities ................................................................................................ 62
Computer Setup–Main ....................................................................................................................... 64
Computer Setup—Security ............................................................................................................... 66
Computer Setup—Advanced ............................................................................................................. 68
Recovering the Conguration Settings ............................................................................................................... 73
.............................................................................. 61
7 POST error messages and diagnostic front panel LEDs and audible codes ......................................................... 74
POST numeric codes and text messages ............................................................................................................. 74
Interpreting system validation diagnostic front panel LEDs and audible codes ................................................ 79
8 Password security and resetting CMOS .......................................................................................................... 81
Resetting the password jumper .......................................................................................................................... 81
Changing a Setup or Power-On password ........................................................................................................... 82
Deleting a Setup or Power-On password ............................................................................................................ 83
Clearing and resetting the CMOS ......................................................................................................................... 83
9 Using HP PC Hardware Diagnostics (UEFI) ....................................................................................................... 85
Downloading HP PC Hardware Diagnostics (UEFI) to a USB device .................................................................... 85
10 Troubleshooting without diagnostics .......................................................................................................... 87
Safety and comfort .............................................................................................................................................. 87
Before you call for technical support .................................................................................................................. 87
Helpful hints ........................................................................................................................................................ 88
Solving retail system-specic problems ............................................................................................................. 89
Solving general problems .................................................................................................................................... 90
Solving hard drive problems ................................................................................................................................ 94
Solving audio problems ....................................................................................................................................... 97
vii
Solving printer problems ..................................................................................................................................... 99
Solving hardware installation problems ........................................................................................................... 100
Solving Network Problems ................................................................................................................................ 101
Solving memory problems ................................................................................................................................ 104
Solving USB ash drive problems ..................................................................................................................... 105
Solving Internet access problems ..................................................................................................................... 106
Solving software problems ............................................................................................................................... 108
11 System backup and recovery ..................................................................................................................... 109
Backing up, restoring, and recovering in Windows 10 ...................................................................................... 109
Creating recovery media and backups ............................................................................................ 109
Creating HP Recovery media (select products only) .................................................... 109
Using Windows tools ....................................................................................................................... 111
Restore and recovery ...................................................................................................................... 111
Recovering using HP Recovery Manager ...................................................................... 111
What you need to know before you get started ........................................ 111
Using the HP Recovery partition (select products only) ............................ 112
Using HP Recovery media to recover ......................................................... 112
Changing the computer boot order ............................................................ 113
Removing the HP Recovery partition (select products only) ..................... 113
Backing up, restoring, and recovering in Windows 8.1, Windows 8, or Industry 8.1 ....................................... 113
Creating recovery media and backups ............................................................................................ 113
Restoring and recovering using Windows tools ............................................................................. 114
Using Reset when the system is not responding ......................................................... 114
Recovery using the Windows recovery USB ash drive ............................................... 115
Recovery using Windows operating system media (purchased separately) ............... 115
Backing up, restoring, and recovering in Windows 7 and POSReady 7 ............................................................ 116
Creating recovery media ................................................................................................................. 116
Creating recovery media using HP Recovery Manager (select models only) ............... 117
Creating recovery discs with HP Recovery Disc Creator (select models only) ............. 117
Creating recovery discs .............................................................................. 118
Backing up your information ........................................................................................ 118
System Restore ............................................................................................................................... 119
System Recovery ............................................................................................................................. 119
System Recovery when Windows is responding .......................................................... 120
System Recovery when Windows is not responding .................................................... 120
System Recovery using recovery media (select models only) ..................................... 121
Using HP Recovery Disc operating system discs (select models only) ........................ 121
Appendix A Power cord set requirements ....................................................................................................... 123
General requirements ........................................................................................................................................ 123
viii
Japanese power cord requirements .................................................................................................................. 123
Country-specic requirements .......................................................................................................................... 124
Appendix B Specications ............................................................................................................................. 125
Index ........................................................................................................................................................... 126
ix
x

1 Product overview

Standard features

The HP RP9 G1 Retail System includes the following features.
Integrated All-in-One (AiO) form factor
Designed for long-term deployment within general retail, hospitality, and other markets
15.6” (Model 9015) and 18.5” (Model 9018) base models with Projected Capacitive touch technology and 1366 x 768 resolution
VESA mounting holes (100 mm x 100 mm)
Choice of ergonomic stand, compact stand, or no stand (Display Head unit only)
Optional Integrated HP peripherals:
Integrated magnetic strip reader (left mount or right mount options, encryption capable)
2 x 20 LCD customer facing display (rear top mount or bottom mount with extension arm)
7" LCD customer facing display (rear top mount or bottom mount with extension arm)
Two integrated barcode scanners (one with left mount or right mount options, and one bottom mount only)
Integrated webcam (top mount only)
Integrated biometric ngerprint reader (left mount or right mount options)
DDR4 2133 MHz Memory, up to 32GB maximum RAM
Operating system choices:
Embedded 8.1 Industry ProRetail 64-bit
FreeDos 2.0
POSReady 7 32-bit
Standard features 1
POSReady 7 64-bit
Windows 10 IoT Enterprise for Retail 64-bit
Windows 10 Pro 64-bit
Windows 10 Pro downgrade to Windows 7 Pro 32-bit
Windows 10 Pro downgrade to Windows 7 Pro 64-bit
Windows 10 Pro downgrade to Windows 8.1 Pro 64-bit
Windows 7 Professional Edition 32-bit
Windows 7 Professional Edition 64-bit
Windows 8.1 Pro 64-bit
One M.2 slot for optional WLAN
Two USB 2.0 ports and two USB 3.0 ports
One 24V powered USB port and three 12V powered USB ports, two powered serial ports, and one cash drawer port
Audio line-in and line-out ports
One DisplayPort for secondary display
One 2.5” internal storage bay for SATA HDD or SSD
Two M.2 internal storage bays
Cable management features
ENERGY STAR compliant
2 Chapter 1 Product overview

Unfolding the ergonomic stand

If your model includes an ergonomic stand, the system is shipped with the stand in the folded position. Follow the steps below to unfold the stand.
1. Unfold the stand to the desired position.
2. Route the DC power cord through the cable retainer and connect the cord to the rear I/O power
connector.
Unfolding the ergonomic stand 3

Rear components

ItemDescription ItemDescription
1 Top USB port for optional HP integrated USB
webcam, 7” CFD, or 2 x 20 CFD (behind rear cover)
2 Side USB port for optional HP integrated USB
barcode scanner, MSR, or biometric reader (behind rear cover)
3 Side USB port for optional HP integrated USB
barcode scanner, MSR, or biometric reader (behind rear cover)
4 Power button 13 Cash drawer connector
5 DC In power connector 14 USB 2.0 ports
6 Powered serial port (COM A) 15 USB 3.0 ports
7 Powered serial port (COM B) 16 RJ-45 network connector
8 DisplayPort (for secondary display) 17 Audio line in connector
9 Powered USB 12V (A) 18 Audio line out connector
NOTE: The powered serial ports can be congured for 0V, 5V, or 12V.
NOTE: The 24-volt Powered USB connector and the 12-volt Powered USB connector are keyed dierently as
a precaution to prevent connection errors.
NOTE: The cash drawer connector is covered by a sticker that must be removed to connect the cash drawer
cable.
CAUTION: The cash drawer connector is similar in size and shape to a modem jack. To avoid damage to the
computer, DO NOT plug a network cable into the cash drawer connector.
10 Powered USB 12V (B) used if the optional
bottom mount barcode scanner is installed
11 Powered USB 12V (C)
12 Powered USB 24V
4 Chapter 1 Product overview

2 Illustrated parts catalog

NOTE: HP continually improves and changes product parts. For complete and current information on
supported parts for your computer, go to http://partsurfer.hp.com, select your country or region, and then follow the on-screen instructions.

Computer major components

Item Description
(1) System board (includes replacement thermal material)
(2) Rear plastic trim
15.6- inch models
18.5 inch models
(3) Rear cover
15.6-inch models
Computer major components 5
Item Description
18.5-inch models
(4) VESA bracket plastic cover
(5) Power supply, 230W
Standard
Slim
(6) Display panel assembly (includes touch board that is pre-programmed to the touch glass)
15.6-inch models
18.5-inch models
(7) Memory modules (SODIMM, PC4-17000, CL15)
16 GB
8 GB
4 GB
Stand
(8) Ergonomic
(9) Compact
*
Processor (not illustrated)
Intel Core i7-6700
Intel Core i5-6500
Intel Core i3-6100
Intel Pentium G4400
Intel Celeron G3900
*
not illustrated
6 Chapter 2 Illustrated parts catalog

Optional displays and USB devices

Item Description
HP Retail Integrated 7-inch Customer Facing Display (with arm)
(1) Bottom mount
(2) Top mount
HP Retail Integrated 2x20 Display (with arm)
(3) Bottom mount
(4) Top mount
(5) HP Integrated Single-Head MSR
(6) HP Retail Integrated Webcam
HP Integrated Bar Code Scanner
(7) Left/right
(8) Bottom
(9) HP Integrated Fingerprint Reader
Optional displays and USB devices 7

Cables and adapters

Description
USB board cable
Right, 15.6-inch
Left, 15.6-inch
Right, 18.5-inch
Left, 18.5-inch
Top, 18.5-inch
Hard drive connector and cable
Antennas and transceivers
Left
Right
Power board cable
15.6-inch
18.5-inch
DisplayPort cable
Adapters
USB to serial
DisplayPort to VGA
DisplayPort to DVI
DisplayPort to HDMI 1.4
8 Chapter 2 Illustrated parts catalog

Storage devices

Item Description
(1) Hard drives, 2.5-inch
1 TB, hybrid SSD
500 GB, 7200 rpm, 2.5-inch, self-encrypting
500 GB, 7200 rpm, 2.5-inch
*
Solid-state drives, 2.5-inch (not illustrated)
256 GB Solid-state drive
128 GB Solid-state drive
128 GB Solid-state drive, self-encrypting (SED)
120 GB Solid-state drive
64-GB, ash, MLC
(2) Solid-state drives, M.2
256 MB, PCIe
256 MB, PCIe, NVMe
256 MB
128 MB, PCIe
128 MB, PCIe, NVMe
128 MB
*
not illustrated
Storage devices 9

Misc parts

Item Description
(1) Heat sink
(2) Speakers
15.6-inch models
18.5-inch models
(3) Fan
(4) Power board
(5) USB port
(6) WLAN module
802.11 a/b/g/n + Bluetooth 4.0, 2x2
802.11 a/b/g/n + Bluetooth 4.0, 2x2 (for use only in Indonesia)
Intel Dual Band Wireless-AC 8260
*
*
*
*
*
*
*
not illustrated
Foot kit (includes rubber foot and screw)
Pad lock
I/O cover
Top port cover
Side port cover
Plug cover
10 Chapter 2 Illustrated parts catalog
3 Routine care, SATA drive guidelines, and
disassembly preparation
This chapter provides general service information for the computer. Adherence to the procedures 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 component damage.

Electrostatic discharge information

A sudden discharge of static electricity from your nger or other conductor can destroy static-sensitive devices or microcircuitry. Often the spark is neither felt nor heard, but damage occurs. An electronic device exposed to electrostatic discharge (ESD) may not appear to be aected at all and can work perfectly throughout a normal cycle. The device may function normally for a while, but it has been degraded in the internal layers, reducing its life expectancy.
Networks built into many integrated circuits provide some protection, but in many cases, the discharge contains enough power to alter device parameters or melt silicon junctions.

Generating static

The following table shows that:
Dierent activities generate dierent amounts of static electricity.
Static electricity increases as humidity decreases.
Relative Humidity
Event 55% 40% 10%
Walking across carpet
Walking across vinyl oor
Motions of bench worker
Removing DIPs from plastic tube
Removing DIPs from vinyl tray
Removing DIPs from Styrofoam
Removing bubble pack from PCB
Packing PCBs in foam-lined box
These are then multi-packaged inside plastic tubes, trays, or Styrofoam.
7,500 V
3,000 V
400 V
400 V
2,000 V
3,500 V
7,000 V
5,000 V
15,000 V
5,000 V
800 V
700 V
4,000 V
5,000 V
20,000 V
11,000 V
35,000 V
12,000 V
6,000 V
2,000 V
11,500 V
14,500 V
26,500 V
21,000 V
NOTE: 700 volts can degrade a product.
Electrostatic discharge information 11

Preventing electrostatic damage to equipment

Many electronic components are sensitive to ESD. Circuitry design and structure determine the degree of sensitivity. The following packaging and grounding precautions are necessary to prevent damage to electric components and accessories.
To avoid hand contact, transport products in static-safe containers such as tubes, bags, or boxes.
Protect all electrostatic parts and assemblies with conductive or approved containers or packaging.
Keep electrostatic sensitive parts in their containers until they arrive at static-free stations.
Place items on a grounded surface before removing them from their container.
Always be properly grounded when touching a sensitive component or assembly.
Avoid contact with pins, leads, or circuitry.
Place reusable electrostatic-sensitive parts from assemblies in protective packaging or conductive foam.

Personal grounding methods and equipment

Use the following equipment to prevent static electricity damage to equipment:
Wrist straps are exible straps with a maximum of one-megohm ± 10% resistance in the ground cords. To provide proper ground, a strap must be worn snug against bare skin. The ground cord must be connected and t snugly into the banana plug connector on the grounding mat or workstation.
Heel straps/Toe straps/Boot straps can be used at standing workstations and are compatible with most types of shoes or boots. On conductive oors or dissipative oor mats, use them on both feet with a maximum of one-megohm ± 10% resistance between the operator and ground.
Static Shielding Protection Levels
Method Voltage
Antistatic plastic
Carbon-loaded plastic
Metallized laminate

Grounding the work area

To prevent static damage at the work area, use the following precautions:
Cover the work surface with approved static-dissipative material. Provide a wrist strap connected to the work surface and properly grounded tools and equipment.
Use static-dissipative mats, foot straps, or air ionizers to give added protection.
Handle electrostatic sensitive components, parts, and assemblies by the case or PCB laminate. Handle them only at static-free work areas.
Turn o power and input signals before inserting and removing connectors or test equipment.
1,500
7,500
15,000
Use xtures made of static-safe materials when xtures must directly contact dissipative surfaces.
Keep work area free of nonconductive materials such as ordinary plastic assembly aids and Styrofoam.
Use eld service tools, such as cutters, screwdrivers, and vacuums, that are conductive.
12 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation

Recommended materials and equipment

Materials and equipment that are recommended for use in preventing static electricity include:
Antistatic tape
Antistatic smocks, aprons, or sleeve protectors
Conductive bins and other assembly or soldering aids
Conductive foam
Conductive tabletop workstations with ground cord of one-megohm +/- 10% resistance
Static-dissipative table or oor mats with hard tie to ground
Field service kits
Static awareness labels
Wrist straps and footwear straps providing one-megohm +/- 10% resistance
Material handling packages
Conductive plastic bags
Conductive plastic tubes
Conductive tote boxes
Opaque shielding bags
Transparent metallized shielding bags
Transparent shielding tubes

Routine care and maintenance

This chapter describes how to clean the computer, monitor, keyboard, and mouse of your retail point of sales system. Dust and other particles can accumulate on or inside the computer and accessories. These particles can scratch hardware components and can cause overheating, shortening the life of the computer. Cleaning the computer removes this potentially damaging buildup and helps prolong the life of the computer. HP recommends that you inspect your system for cleanliness once a month as part of a regular maintenance program.
Drivers and rmware
HP recommends that you regularly download and install the latest drivers and rmware updates to help enhance computer performance, resolve known issues, and avoid replacing parts unnecessarily.
Please go to http://www.hp.com/support to download and install the latest drivers and BIOS updates for your specic Retail Point of Sale model.

Operating guidelines

Follow these guidelines to prevent overheating and to help prolong the life of the computer:
Keep the computer away from excessive moisture, direct sunlight, and extremes of heat and cold.
Place the computer on a sturdy, level surface.
Leave an area at least 10.2 cm (4 in) wide all around the computer and above the monitor clear to permit the ow of air in and out of the computer.
Routine care and maintenance 13
Do not operate the computer with the cover or side panel removed.
Do not stack computers on top of each other or place computers so near one another that they are subject to each other’s re-circulated or preheated air.
If you are operating the computer within a separate enclosure, the enclosure must have intake and exhaust ventilation. The same operating guidelines listed previously still apply.
Keep liquids away from the computer and keyboard.
Do not block or cover any intake and exhaust vents, this restrict the airow into the computer.
Do not place the keyboard, with the keyboard feet down, directly against the front of the computer as this also restricts airow.
Occasionally, clean the air vents. Lint, dust, and other foreign matter can block the vents and limit the airow. Be sure to unplug the computer before cleaning the air vents.
Install or enable power management functions of the operating system or other software, including sleep states
Environmental specications
This table describes the average environmental conditions for Retail Systems.
Specication Description
Temperature Operating: 10° to 40°C (50° to 104°F)
Non-operating: -22° to 149° F (-30° to 65° C)
Relative humidity Operating: 20% to 85%
Maximum altitude (unpressurized) Operating: 3048 m (10,000 ft)
Please visit http://h10025.www1.hp.com/ewfrf/wc/siteHome?lc=en&cc=us to view the specications for other retail platform models.

Before you begin

Before you begin cleaning the computer and components, perform these steps to reduce the risk of electrical shock:
1. Turn o the computer and monitor.
2. Unplug the power cord from the computer and monitor.

Cleaning the computer case

Follow these steps to clean the computer case.
1. Use a clean, dry cloth to dust the computer case.
2. Use a clean, lint-free cloth or swab dampened with water to remove light stains or dirt.
Non-operating: 0% to 95% (non-condensing at ambient)
Non-operating: 9144 m (30,000 ft)
NOTE: For stubborn stains, use isopropyl (rubbing) alcohol. You do not need to rinse the case
afterwards as the alcohol evaporates quickly and does not leave a residue.
14 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation
3. Wipe the computer with a clean, lint-free cloth.
4. Use a battery-powered vacuum to remove dust and buildup from the vents.

Cleaning the monitor or touch screen

Follow these steps to clean the monitor or touch screen.
CAUTION: Do not clean the monitor using the following chemicals and materials:
Petroleum based materials such as benzene or thinner
Alcohol (ethyl, methyl, or isopropyl)
Abrasive material
Any volatile substance
1. Spray a small amount of a mild glass cleaner onto a lint-free soft cloth.
2. Wipe the surface and each side of the display to remove any dirt, ngerprints, or other debris.
CAUTION: Avoid wiping in the top corners where the optics are located.
3. Use a dry, soft, lint-free cloth to wipe the screen dry after cleaning.
4. Clean the display cabinet using a clean soft cloth that is lightly dampened with a mild detergent.

Cleaning I/O ports and fan area

The computer has a series of ports, usually in the back. Dust and debris can collect in these ports, this can reduce connectivity and performance. Use a battery-powered vacuum to remove any debris that has accumulated in and around these ports.
NOTE: Unplug the computer before cleaning the I/O ports and fan.

Cleaning the keyboard

Follow these steps to clean the keyboard.
CAUTION: Use safety glasses equipped with side shields before cleaning debris from under the keys.
1. Disconnect the keyboard from the computer.
2. Use a battery-powered vacuum to gently remove debris particles that get between and beneath the
keyboard keys. Use a low setting to avoid removing key caps and springs.
You can also use canned, pressurized air to clean debris from under the keys.
CAUTION: Too much air pressure can dislodge lubricants applied under the wide keys.
3. Use a clean, dry cloth and isopropyl alcohol to clean the buildup on the keyboard keys.

Cleaning the mouse

Follow these steps to clean an optical mouse.
1. Unplug the mouse from the computer.
2. Wipe the body of the mouse with cleaning wipes or a cloth and cleanser.
Routine care and maintenance 15
3. Turn the mouse body upside down.
4. Clean the LED bulb and the surrounding area on the bottom of the mouse with a cotton swab dampened
with isopropyl alcohol.

Cleaning the MSR

Swipe a standard cleaning card through the MSR a couple of times to clean the MSR (magnetic strip reader). You can order a standard cleaning card online. Alternately, you can create a cleaning card by putting a thin, oil free cloth around a credit card.

Service considerations

Listed below are some of the considerations that you should keep in mind during the disassembly and assembly of the computer.

Power supply fan

The power supply fan is a variable-speed fan based on the temperature in the power supply.
CAUTION: The cooling fan is always on when the computer is in the “On” mode. The cooling fan is o when
the computer is in “Standby,” “Suspend,” or “O” modes.
You must disconnect the power cord from the power source before opening the computer to prevent system board or component damage.

Tools and software Requirements

To service the computer, you need the following:
Torx T-15 screwdriver
Flat-bladed screwdriver (may sometimes be used in place of the Torx screwdriver)
Phillips #2 screwdriver
Diagnostics software
Tamper-resistant T-15 wrench

Screws

The screws used in the computer are not interchangeable. They may have standard or metric threads and may be of dierent lengths. If an incorrect screw is used during the reassembly process, it can damage the unit. HP strongly recommends that all screws removed during disassembly be kept with the part that was removed, then returned to their proper locations.
CAUTION: Metric screws have a black nish. U.S. screws have a silver nish and are used on hard drives only.
CAUTION: As each subassembly is removed from the computer, it should be placed away from the work area
to prevent damage.

Cables and connectors

Most cables used throughout the unit are at, exible cables. These cables must be handled with care to avoid damage. Apply only the tension required to seat or unseat the cables during insertion or removal from the connector. Handle cables by the connector whenever possible. In all cases, avoid bending or twisting the
16 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation
cables, and ensure that the cables are routed in such a way that they cannot be caught or snagged by parts being removed or replaced.
CAUTION: When servicing this computer, ensure that cables are placed in their proper location during the
reassembly process. Improper cable placement can damage the computer.

Hard Drives

Handle hard drives as delicate, precision components, avoiding all physical shock and vibration. This applies to failed drives as well as replacement spares.
If a drive must be mailed, place the drive in a bubble-pack mailer or other suitable protective packaging and label the package “Fragile: Handle With Care.”
Do not remove hard drives from the shipping package for storage. Keep hard drives in their protective packaging until they are actually mounted in the computer.
Avoid dropping drives from any height onto any surface.
If you are inserting or removing a hard drive, turn o the computer. Do not remove a hard 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.
Do not use excessive force when inserting a drive.
Avoid exposing a hard drive to liquids, temperature extremes, or products that have magnetic elds such as monitors or speakers.

Lithium coin cell battery

The battery that comes with the computer provides 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 on the replacement procedures.
WARNING! This computer contains a lithium battery. There is a risk of re and chemical burn if the battery is
handled improperly. Do not disassemble, crush, puncture, short external contacts, dispose in water or re, or expose it to temperatures higher than 140ºF (60ºC). Do not attempt to recharge the battery.
NOTE: Batteries, battery packs, and accumulators should not be disposed of together with the general
household waste. In order to forward them to recycling or proper disposal, please use the public collection system or return them to HP, their authorized partners, or their agents.

SATA hard drives

Serial ATA Hard Drive Characteristics
Number of pins/conductors in data cable 7/7
Number of pins in power cable 15
Maximum data cable length 39.37 in (100 cm)
Data interface voltage dierential 400-700 mV
Drive voltages 3.3 V, 5 V, 12 V
SATA hard drives 17
Serial ATA Hard Drive Characteristics
Jumpers for conguring drive N/A
Data transfer rate 6.0 Gb/s

SATA hard drive cables

SATA data cable

Always use an HP approved SATA 6.0 Gb/s cable as it is fully backwards compatible with the SATA 1.5 Gb/s drives.
Current HP desktop products ship with SATA 6.0 Gb/s hard drives.
SATA data cables are susceptible to damage if overexed. Never crease a SATA data cable and never bend it tighter than a 30 mm (1.18 in) radius.
The SATA data cable is a thin, 7-pin cable designed to transmit data for only a single drive.

SMART ATA drives

The Self Monitoring Analysis and Recording Technology (SMART) ATA drives for the HP Personal Computers have built-in drive failure prediction that warns the user or network administrator of an impending failure or crash of the hard drive. The SMART drive tracks fault prediction and failure indication parameters such as reallocated sector count, spin retry count, and calibration retry count. If the drive determines that a failure is imminent, it generates a fault alert.

Cable management

Always follow good cable management practices when working inside the computer.
Keep cables away from major heat sources like the heat sink.
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.
Keep cables clear of sliding or moveable parts to prevent them from being cut or crimped when the parts are moved.
When folding a at ribbon cable, never fold to a sharp crease. Sharp creases may damage the wires.
Some at ribbon cables come prefolded. Never change the folds on these cables.
Do not bend any cable sharply. A sharp bend can break the internal wires.
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.
18 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation

4 Removal and replacement procedures

NOTE: HP continually improves and changes product parts. For complete and current information on
supported parts for your computer, go to http://partsurfer.hp.com, select your country or region, and then follow the on-screen instructions.
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

See Routine care, SATA drive guidelines, and disassembly preparation on page 11 for initial safety procedures.
1. Remove/disengage any security devices that prohibit opening the computer.
2. Shut down the computer properly through the operating system, then turn o any external devices.
3. Disconnect the power cord from the power outlet.
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. You must disconnect the power cord and wait approximately 30 seconds for the power to drain to avoid damage to the internal components of the computer.
4. Disconnect all cables from the rear I/O connectors.
CAUTION: The screws used in the computer are of dierent thread sizes and lengths; using the wrong screw
in an application may damage the unit.
NOTE: During disassembly, label each cable as you remove it, noting its position and routing. Keep all
screws with the units removed.
Preparation for disassembly 19

Installing a port cover

To install the port cover, snap the port cover onto the rear panel over the ports (1) and secure it with the screw (2).
20 Chapter 4 Removal and replacement procedures
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