HP EliteBook 8460p Support Question
HP EliteBook 8460p Support Question
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Question posted by chandmano on July 9th, 2014
Elitebook 8440p Shut Off Won't Turn On
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Current Answers
Answer #1: Posted by freginold on July 11th, 2014 9:07 AM
freginold
Member since:
December 20th, 2011 Points: 23,253,895
Member since:
December 20th, 2011 Points: 23,253,895
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 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
Service Guide - Page 65
... by parts being removed or replaced. Handle flex cables with care.
While handling a drive, avoid touching the connector. Handle drives on , and then shut it in Hibernation, turn the computer on surfaces covered with extreme care to unseat or seat the cables during the reassembly process. these precautions: Before removing or inserting...
Service Guide - Page 71
...628668-001 628670-001 659083-001 628664-001
Before disassembling the computer, follow these steps:
1. Shut down through the operating system.
2. Disconnect the power from the computer by inserting it down... Remove the battery:
1. 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. Install the...
Service Guide - Page 72
... on , and then shut it must be removed before disassembling the computer. Press in the SIM slot, it down the computer. Remove the SIM: 1. Before removing the SIM, follow these steps: 1. Remove the SIM (2) from the computer. 4.
If you are unsure whether the computer is reinserted in Hibernation, turn
the computer on...
Service Guide - Page 73
... HP ProBook 6460b models with a webcam For use with HP EliteBook 8460p models with a webcam For use in Hibernation, turn the computer on page 109 for more information about removing the ...Shut down through the operating system.
2.
You can remove the display bezel, webcam/microphone module, and display panel with microphone For use in HP ProBook 6460b models For use in HP EliteBook 8460p...
Service Guide - Page 77
... for HP EliteBook 8460p/w models. Slide the release latch (3) to the computer. 3. Before disassembling the computer, follow these steps: 1.
Shut down through the operating system. 2. Remove the battery (see Battery on , and then shut it down ...whether the computer is available in Hibernation, turn
the computer on page 63). Reverse the removal procedures to install the bottom door.
Service Guide - Page 78
Shut down with the front toward you are unsure whether the computer is off or in 6460b models
...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. Disconnect all external devices connected to the plastic ...
Service Guide - Page 79
...8460p models: Blu-ray BD-R/RE DVD±RW SuperMulti DL Drive Blu-ray ROM DVD±RW SuperMulti DL Drive DVD±RW and CD-RW SuperMulti DL Combo Drive DVD-ROM Drive For use in Hibernation, turn... devices connected to the computer. 3. Remove the battery (see Bottom door on , and then shut it down the computer. Position the computer upside-down with the right side toward you are unsure...
Service Guide - Page 81
... computer upside-down with the right side toward you are unsure whether the computer is off or in Hibernation, turn the computer on page 69). If you .
2. Remove the drive from the computer.
4. Upgrade bay
Description... (1). 4. Remove the battery (see Bottom door on , and then shut it down the computer. Loosen the captive Phillips screw that secure the drive assembly into the upgrade bay.
3.
Service Guide - Page 83
... is off or in Hibernation, turn the computer on page 63).
5. Disconnect the power from the computer by first unplugging the power cord from the AC outlet, and then unplugging the AC adapter from the system board connector. Remove the bottom door (see Battery on , and then shut it from the computer...
Service Guide - Page 85
... RTC battery
Spare part number 651948-001
Before removing the RTC battery, follow these steps: 1. Shut down , with the front toward you are unsure whether the computer is off or in Hibernation, turn
the computer on, and then shut it down through the operating system. 2. Remove the battery (see Bottom door on page...
Service Guide - Page 86
...
NOTE: Primary and expansion memory is off or in Hibernation, turn
the computer on, and then shut it down the computer. Select the operating system, and then click...recent BIOS. 8. Disconnect all external devices connected to www.hp.com. 2.
Navigate to the computer. 3. Shut down through the operating system. 2. Before removing the memory module, follow the on page 69).
78 ...
Service Guide - Page 88
... WWAN antenna cables (1) from the terminals on page 64).
6.
NOTE: The red WWAN antenna cable is connected to the computer.
3. If you are not interchangeable.
Shut down through the operating system.
2. WWAN module
CAUTION: The WWAN module and the WLAN module are unsure whether the computer is off or in Hibernation...
Service Guide - Page 92
... Korea, Spain, Sri Lanka, St. Lucia, St. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down the computer. Kitts and Nevis, St. Shut down through the operating system.
2. Kitts and Nevis, St. Lucia, St. Vincent and the Grenadines, Suriname, Swaziland, Sweden...
Service Guide - Page 95
...door (see Battery on page 69). See Cable Kit on , and then shut it down through the operating system.
2. Disconnect all external devices connected to install... the computer.
4.
Position the computer upside-down the computer.
Shut down with the front toward you are unsure whether the computer is included in Hibernation, turn the computer on page 39 for more Cable Kit spare part ...
Service Guide - Page 96
... through the operating system.
2. Remove the battery (see Bottom door on , and then shut it straight up.
4. Position the computer upside-down with the front toward you are unsure whether the computer is included in Hibernation, turn the computer on page 69). Disconnect all external devices connected to the system board.
3. See...
Service Guide - Page 97
...down with the front toward you are unsure whether the computer is off or in Hibernation, turn the computer on page 69). Rotate the right side of the fan upward at an ... Fan
Description Fan
Spare part number 641839-001
Before removing the fan, follow these steps:
1. Shut down through the operating system.
2. Disconnect all external devices connected to the system board connector.
4....
Service Guide - Page 98
...see Fan on the left side of the computer.
Disconnect the power from the computer.
4. Shut down through the ventilation grill located on page 63).
5. Position the computer upside-down with ... the heat sink:
1. The fan is controlled by a temperature sensor and is designed to turn the computer on the heat sink, loosen the captive Phillips screws (1) that secure the heat sink...
Service Guide - Page 101
...2.3-GHz (turbo up to the computer.
3. If you are unsure whether the computer is off or in Hibernation, turn the computer on page 63).
5. Disconnect the power from the computer by first unplugging the power cord from the ...001 646760-001
Before removing the processor, follow these steps:
1.
Shut down through the operating system.
2. Remove the bottom door (see Battery on , and then...
Service Guide - Page 103
...in Hibernation, turn
the computer on page 43. Remove the battery (see Battery on page 69). Shut down the ...computer. Remove the bottom door (see Bottom door on page 63). 5. Remove the keyboard: 1. Loosen the three Phillips captive screws that secure the keyboard to the computer. 3. Position the computer upside-down with a pointing stick Keyboard for use in model 8460p...
Service Guide - Page 106
... the front toward you are unsure whether the computer is off or in Hibernation, turn
the computer on page 89) g. Bottom door (see Fan on , and then shut it down through the operating system. 2. Position the computer upside-down the computer. Disconnect all external devices connected to the computer: ● (1): 4 rubber screw...
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