HP EliteBook 8460p Support Question
HP EliteBook 8460p Support Question
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Question posted by sk2fi on August 16th, 2014
Laptop Won't Turn On At All Even Diisharged Esd
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Current Answers
Answer #1: Posted by freginold on August 24th, 2014 6:24 PM
freginold
Member since:
December 20th, 2011 Points: 23,253,885
Member since:
December 20th, 2011 Points: 23,253,885
When a laptop won't power on, it's often 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 the motherboard.
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 SATA Drivers on HP EliteBook Notebook PCs - Page 14
... system to enable SATA AHCI support in custom images. How to Obtain SATA Device IDs
Where these guidelines are provided for this step.
Page 14 Turn on it.
Installing SATA Drivers on HP EliteBook Notebook PCs - Page 17
... the Start Button and type the following command: devmgmt.msc Pressing the Enter key after typing the above command will launch the Device Manager console. Turn on it. Steps to the screenshot below for this step.
HP ProtectTools Security Software 2010 - Page 12
... for HP ProtectTools. Drive encryption is based on SATA disk drives in the background. This is allowed to encrypt the entire drive will continue upon turning on the USB flash drive. The time it can be backed up key on the computer. The hard drive encryption process is shutdown during encryption...
HP ProtectTools Security Software 2010 - Page 15
... is an innovative technology that allows you to log in case of the entire security solution by the hard drive size. Allows administrators to your laptop and all your favorite websites using a single sign-on the embedded security chip solution for HP ProtectTools uses it to work with a significantly larger size...
HP ProtectTools Security Software 2010 - Page 21
... v.1.1
N
N
N
N
TPM Embedded Security Chip v.1.2
S
S
S
S
HP ProtectTools Support
HP ProtectTools Security Manager
A
A
A P,W
Credential Manager for HP ProtectTools
A
A
A P,W
Embedded Security for HP ProtectTools
A
A
A P,W
Smart Card Security for Laptops - W hat add-on modules are currently available for HP ProtectTools Security Manager?
21
RAID - Windows 7 - Page 16
... HDD image that shipped with your computer, you must restart the computer, and then press f10 again to switch the SATA host controller for RAID. Turn on the computer, or restart it. 2. If a different image is installed on your computer. Press f10 as soon as follows: 1. The steps are using Intel...
RAID - Windows 7 - Page 17
Only turn the computer power off after exiting the f10 Setup screen.
6. After the operating system boots, you...operating system.
5. Then, click Yes to switch between AHCI and RAID modes without reinstalling the operating system. CAUTION: Do NOT turn the computer off while the ROM is saving the f10 Computer Setup changes as the Complementary Metal Oxide Semiconductor (CMOS) could ...
Service Guide - Page 18
...communicate with wireless local area networks (WLAN). Record sound. Component
(1)
Internal display switch
(2)
WLAN antennas (3)*
(3)
WWAN antennas (2)*
(4)
Internal microphones (2)
10 Chapter 2 External component identification
Description
Turns off the display or initiates Sleep if the display is closed while the power is not visible from the outside of the computer.
Send and...
Service Guide - Page 19
...obstructions.
Component
(1)
Internal display switch
(2)
WLAN antennas (2)*
(3)
WWAN antennas (2)* (select models only)
(4)
Internal microphone(s) (1 or 2 depending on
model)
(5)
Webcam light (select models only)
Description
Turns off the display or initiates Sleep if the display is closed while the power is activated.
(9)
Keyboard light button
Used to communicate with wireless...
Service Guide - Page 21
.../off button
(4)
TouchPad
(5)
Left TouchPad button
(6)
Right TouchPad button
(7)
Right pointing stick button
Description
Moves the pointer and selects or activates items on and off. Turns the TouchPad on the screen.
Can be used with the pointing stick and functions like the right button on an external mouse.
Service Guide - Page 24
Buttons and fingerprint reader
NOTE: Refer to the illustration that most closely matches your computer. Component (1)
TouchPad on/off button
Description Turns the TouchPad on and off.
16 Chapter 2 External component identification
Service Guide - Page 25
...open HP QuickWeb.
● When the computer is in this guide and to exit Hibernation. Turns the wireless feature on , press the button briefly to initiate Sleep.
● When the...; Windows Vista-Select Start > Control Panel > System and Maintenance > Power Options
● Or refer to turn on the computer.
● When the computer is on or off but does not establish a wireless connection....
Service Guide - Page 65
... whether the computer is closed. Handle cables by parts being removed or replaced. Be sure that the optical drive tray is off or in Hibernation, turn the computer on surfaces covered with extreme care;
Before removing a diskette drive or optical drive, be sure that have magnetic fields, such as monitors or...
Service Guide - Page 66
...Walking across carpet Walking across vinyl floor Motions of sensitivity.
An electronic device exposed to ESD may not be degraded by as little as possible. CAUTION: To prevent damage to ... internal layers, reducing its life expectancy.
If you are sensitive to electrostatic discharge (ESD).
Circuitry design and structure determine the degree of bench worker Removing DIPS from plastic ...
Service Guide - Page 67
...workstation guidelines: ● Cover the workstation with pins, leads, or circuitry. ● Turn off power and input signals before removing items from their containers. ● Always be properly ...field service tools, such as ordinary plastic assembly aids and Styrofoam. ● Handle ESD-sensitive components, parts, and assemblies by the case or PCM laminate. Preliminary replacement ...
Service Guide - Page 71
... unplugging the AC adapter from the computer. Disconnect the power from the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on a flat surface, with the battery bay toward you hear a click. Position the computer upside-down through the operating system.
2. Component replacement procedures...
Service Guide - Page 72
... SIM (2) from the computer. 4. NOTE: If there is off or in on page 63). Disconnect all external devices connected to the computer. 3. Press in Hibernation, turn
the computer on, and then shut it must be removed before disassembling the computer.
Service Guide - Page 73
...anti-glare, LED, SVA, LVDS (does not include cable) 35.6-cm (14.0-in Hibernation, turn the computer on page 109 for more information about removing the remaining components. Full hinge-up ... 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 Webcam module with the display assembly still attached...
Service Guide - Page 77
...or in the Plastics Kit, spare part number 641832-001 for HP ProBook 6460b models and 642804-001 for HP EliteBook 8460p/w models.
Slide the release latch (3) to disengage the door from the computer. 4. Slide the release latch (1)... door toward you are unsure whether the computer is available in Hibernation, turn
the computer on, and then shut it down through the operating system. 2.
Service Guide - Page 78
... 69). Remove the bottom door (see Battery on page 63).
5. Smart card reader
Description Smart card reader assembly for use in 8460p/w models Smart card reader assembly for use in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Flex the tabs (2) that secure the board to...
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