HP EliteBook 8460p Support Question
HP EliteBook 8460p Support Question
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Question posted by acdenn on March 22nd, 2014
Computor Wont Trun On Low Battery
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Current Answers
Answer #1: Posted by freginold on June 8th, 2014 6:55 AM
freginold
Member since:
December 20th, 2011 Points: 23,253,885
Member since:
December 20th, 2011 Points: 23,253,885
Usually when a laptop won't power on, it's because of one of four things: the battery, the battery charger/AC adapter, the power board/battery charging board (if the laptop has one), or themotherboard.
You can attempt to rule out the battery by attaching the AC adapter and trying to turn the laptop on. If the laptop turns on when on AC power but won't turn on with the battery, then one of two things is happening: either the battery is bad, or the charger is bad and the battery has run down. If the laptop won't turn on with or without the AC adapter plugged in, then the battery is not the problem. If your AC adapter has an LED on it, you can often tell if the adapter isn't working because the LED won't light up. (However, just because the LED does come on doesn't mean the adapter is working as it should.)
If it doesn't seem to be either the charger/adapter or the battery, then you're probably looking at either the power board or motherboard. If you are comfortable taking the laptop apart, you might want to try replacing the power board, which is the board that the charger plugs into. Amazon.com sells power boards (also sometimes called power jack boards) for many laptops for between $15 and $30.
The motherboard is a more expensive option to replace, so a good rule of thumb is to try the less expensive parts first. If it still won't power on, you may have a bad motherboard, in which case it might be cheaper to get a new laptop than have the motherboard repaired or replaced.
You can attempt to rule out the battery by attaching the AC adapter and trying to turn the laptop on. If the laptop turns on when on AC power but won't turn on with the battery, then one of two things is happening: either the battery is bad, or the charger is bad and the battery has run down. If the laptop won't turn on with or without the AC adapter plugged in, then the battery is not the problem. If your AC adapter has an LED on it, you can often tell if the adapter isn't working because the LED won't light up. (However, just because the LED does come on doesn't mean the adapter is working as it should.)
If it doesn't seem to be either the charger/adapter or the battery, then you're probably looking at either the power board or motherboard. If you are comfortable taking the laptop apart, you might want to try replacing the power board, which is the board that the charger plugs into. Amazon.com sells power boards (also sometimes called power jack boards) for many laptops for between $15 and $30.
The motherboard is a more expensive option to replace, so a good rule of thumb is to try the less expensive parts first. If it still won't power on, you may have a bad motherboard, in which case it might be cheaper to get a new laptop than have the motherboard repaired or replaced.
Related HP EliteBook 8460p Manual Pages
Installing Microsoft Windows on an HP ProBook or EliteBook Notebook PC and creating an image - White Paper - Page 2
Supported models
HP EliteBook 8460p Notebook PC HP EliteBook 8560p Notebook PC HP ProBook 6360b Notebook PC P ... white paper is available at http://www.microsoft.com. HP Driver Recovery DVD (DRDVD)
1 Typically provided on select HP Elitebook and HP ProBook Notebook PC models. Media from an alternate source may require a product ID (PID)1 Access ...
Service Guide - Page 1
HP EliteBook 8460w Mobile Workstation HP EliteBook 8460p Notebook PC HP ProBook 6460b Notebook PC
Maintenance and Service Guide
Service Guide - Page 9
... (Turbo up to 3.20)
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processor 3-MB L3 cache, 4 threads
2430M, 2.40-GHz (Turbo up to 3.00)
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processor 3-MB L3 cache, 4 threads
HP EliteBook 8460p Notebook PC
HP EliteBook 8460w Mobile Workstation
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Service Guide - Page 12
... interface card (non-vPro
models)
S3/S4/S5 wake on LAN
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NIC power down technology
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Ethernet cable not included
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Service Guide - Page 13
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Description
HP ProBook 6460b Notebook PC
HP EliteBook 8460p Notebook PC
HP EliteBook 8460w Mobile Workstation
Integrated WLAN options by way...5 band, in
WWAN panels only)
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Subscriber identity module (SIM)
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security (customer-accessible in battery
bay)
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Supports "no WWAN" option
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Supports the following WWAN modules:
&#...
Service Guide - Page 14
...;
3-pin AC power
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Secondary battery connector
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Docking connector
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...battery
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6-cell, 2.8-Ah (62-Wh) Li-ion battery
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6-cell, 2.55-Ah (55-Wh) Li-ion battery
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3-cell, 2.8-Ah (31-Wh) Li-ion battery
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Supports 9-cell, 73-Wh HP Ultra-
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Capacity Extended Life Battery
HP EliteBook 8460p Notebook PC
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HP EliteBook...
Service Guide - Page 15
... 100-Wh HP Extended
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Life Battery
Supports 6-cell, 55-Wh HP Long Life Li-
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ion battery
HP Fast Charge Technology
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Integrated ...8730;
Microsoft Basics
Windows Vista Home Basic 32 with
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Microsoft Office 2010 Personal
HP EliteBook 8460p Notebook PC
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Service Guide - Page 16
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Windows 7 Home Premium 32
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Windows 7 Starter 32
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DRDVD Windows 7
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DRDVD Windows 7 with WinDVD
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Web-only support:
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Service Guide - Page 17
...;
Novell: SuSE Linux
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End-user replaceable parts:
AC adapter
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Battery (system)
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Hard drive
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Memory module
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Optical drive
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Mini-PCI components (WLAN, WWAN,
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SIM)
Modem
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Keyboard
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Service Guide - Page 28
...battery reaches a critical battery level, the battery light begins blinking rapidly.
● Off: The battery is charged from 90 - 99%.
● Blinking amber: A battery that most closely matches your computer.
Front
NOTE: Refer to external power and the battery...
(3) Power light
(4) Battery light
Description
Opens the ...external power and the battery is charged from 0 - 90%.
●...
Service Guide - Page 37
... touchpad without fingerprint reader
642741-001 642742-001 642743-001 642746-001
For use in model 8460p: ● Includes 4-button touchpad and fingerprint reader ● Includes 4-button touchpad without fingerprint...)
642765-001
Fingerprint reader board (includes cable)
642764-001
RTC battery
651948-001
ExpressCard assembly
642763-001
System board (includes replacement thermal material...
Service Guide - Page 43
... 641830-001. Battery, Li-ion 9-cell (100 WHr, 3.0 Ah) 9-cell (73 WHr, 2.8 Ah) 6-cell (62 WHr, 2.8 Ah) 6-cell (55 WHr, 2.8 Ah, long life) 6-cell (2.55 Ah) (1-year warranty) 3-cell (31 WHr, 2.8 Ah) Base enclosure (includes rubber feet) For use with HP ProBook 6460b computer models For use with HP EliteBook 8460p and 8460w...
Service Guide - Page 44
... use with HP ProBook 6460b models with a webcam
For use with HP EliteBook 8460p models with a webcam
For use with HP EliteBook 8460w models with a webcam
(2)
Webcam module with microphone
For use with HP ProBook 6460b models
For use with HP EliteBook 8460p/w models
36 Chapter 3 Illustrated parts catalog
Spare part number
643918-001 643919...
Service Guide - Page 77
... Plastics Kit, spare part number 641832-001 for HP ProBook 6460b models and 642804-001 for HP EliteBook 8460p/w models. If you . 2. Slide the release latch (3) to disengage the door from the computer. 4. Remove the battery (see Battery on , and then shut it down through the operating system. 2. Component replacement procedures 69 Position the...
Reference Guide - Page 6
...Check ...28
Displaying the remaining battery charge 28
Maximizing battery discharge time 28
Managing low battery levels 28
Identifying low battery levels 28
Resolving a low battery level 29
Resolving a low battery level when external power is available ....... 29
Resolving a low battery level when a charged battery is available ... 29
Resolving a low battery level when no power source...
Reference Guide - Page 34
... Windows password before your work will return to quickly access power settings and view the remaining battery charge. ● To display the percentage of the taskbar. ● Windows 7-Select Start... power or maximize performance. The icon also displays a message if the battery has reached a low or critical battery level. Viewing the current power plan
Use any of the following methods:...
Reference Guide - Page 38
... system responses set using Power Options in Windows Control Panel. Some low-battery alerts and system responses can be connected to external power for Battery Check to the computer.
Identifying low battery levels
When a battery that is not being used or charged. ● Store the battery in a cool, dry location. ● Select the Power saver setting in...
Reference Guide - Page 39
... computer takes the following devices: ● AC adapter ● Optional docking or expansion device ● Optional power adapter purchased as an accessory from HP
Resolving a low battery level when a charged battery is available 1.
Resolving a low battery level when no power source is on page 24. Exit Hibernation by pressing the power button.
Replace the discharged...
Reference Guide - Page 103
... 63
audio functions, checking 16
Automatic DriveLock password
entering 61
removing 61
B battery
conserving power 29
discharging 28
displaying remaining charge
28
disposing 30
low battery levels 28
replacing 30
storing 30
Battery Check 28
battery information, finding 27
battery power 27
battery temperature 30
BIOS
determining version 75
downloading an update 75
updating 75...
Reference Guide - Page 104
... configuring audio 20
HDMI port, connecting 20
Hibernation
exiting 23
initiated during critical battery
level 29
initiating 23
high-definition devices,
connecting 20, 21
hotkeys, media...local area network (LAN)
cable required 13
connecting cable 13
logical drive designations 79
low battery level 28
M maintenance
Disk Cleanup 48
Disk Defragmenter 48
media activity controls 15
media ...
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