Shut my computer down when i went on holiday, got back started it up and now it
just won't turn on, when you press the power button all the leds
flashes for a moment, plus the fan just moves and than stops.
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And nothing will happen. Do not PERFORM BIOS UPDATE unless strictly necessary. Do not perform BIOS UPDATE without CHARGER plugged in and be sure you have enough power for 10 minutes. NOW... If you are lucky, in service they will be able to REWRITE your BIOS. Check HP website for service in your area. If not, your motherboard will have to be replaced. Good luck. Keep us informed of the results.
If computer SHUT DOWN while reading BIOS FILES you might have a little chance to repair it. Unplug battery. Charger must not be connected. Press POWER for 30-40 seconds. Plug back battery. Press power. And pray before this. IF this will not repair it... the two options described before will...
When the CPU overheats then it will shut down (i.e. thermaloverload) and won't boot up again until it has cooled down. If this is theproblem is not fixed then the CPU will eventually fail. A faulty fan causes the problem or the fan and heat sink assembly are cloggedwith dust. Check the CPU fan to see if it spins freely, if not replace the fan. If the fan and heat sink is clogged with dust the remove the dust and make surethe vents are clear and dust free. Use a small brush and can of compressed airto do this.
Hold down the power button for 10 seconds. That will hard-shut the PC. Once that is done, fire it back up, and try again. Somethimes, windows will act goofy shutting down. Especially Vista when it is left on too long without shutting it down.
Power drain would be a better solution in this case. 1.first shut down the comp 2.unplug the charger 3. remove the battery and after press and hold the power button for 60 seconds without any charger and the battery.After the 60 seconds replug the battery and the charger and turn the computer .
1. Disconnect the AC Adapter. 2. Remove the Battery. Note : Please see that there are no external devices or cables connected to the Notebook.
3. Hold the Power button down for 30 seconds to 1 minute. 4. Reconnect the AC adapter and do NOT connect the battery now. 5. Turn on the Notebook power
If the issue persists, try these steps to reset the BIOS to its defaults :
Start or restart the Notebook and start tapping the F10 Key which will take you to the BIOS setup window.
In this, press the F10 Key again to set the settings to its default and exit the BIOS setup screen.
If the issue still persists, make sure that the Power adapter of the notebook is correctly pluged into the Notebook.
Some process running in the background is not letting the system shut down. Use task manager to kill unnecessary processes before pressing turn off. If it shut downs then try to locate the process using taskmanager which is causing this problem.