Power turns off itself then sometimes won't turn back on for sometime
My Compaq presario is 2 yrs old- it turns itself off completely then often will not turn back on for hours.. I've tried holding the button down to restart but it doesn't hold the connection. Why would it be shuttign itslef down?
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Hold down the "Power" button for at least four seconds to turn the DSi off. If the system powers off, hold the Power button to turn the system back on and reset the operating system. The system should no longer be frozen. If the system doesn't power off, go to the next step.
Plug the Nintendo DSi to the power outlet using its AC adapter. Allow the system to charge for two to three hours. A battery may be recharged 500 times or less before being depleted. Once charged, hold down the "Power" button to turn on and reset the operating system. The system should unfreeze itself; if not, follow the next step.
Remove the battery from the Nintendo DSi. Unplug the AC adapter from the DSi. Loosen the two screws with a Philips screwdriver on the battery cover. Remove the cover, then remove the battery. Put the old battery back in or replace it with a new battery. Removing and resituating an old battery will sometimes jolt the system and allow it to unlock itself. Replace the battery cover and retighten the screws. Then, try to hold down the "Power" button to unfreeze the system.
You may try this fix. No guaranties though. Remove the battery and unplug power cable. Then hold down the "power" button for about 10 seconds. After that plug it back in and try turning it on. Again, this may NOT work but it has for others.
Power down your Compaq Presario F500 notebook computer. Remove the unit's internal battery from its housing compartment. Use a screwdriver to unscrew and remove all of the screws from the
bottom panel of your Compaq Presario F500. Use your hands to lift off
the bottom panel, revealing the inside of the notebook computer. Look for the CMOS/BIOS chip: It will be located in the center of your
computer's motherboard, which is itself located in the center of the
case. Remove the small battery from its housing compartment on the CMOS/BIOS
chip. Then, press and hold the "Power" button on the laptop's case for a
few seconds. This will completely discharge all electricity from the
device. Replace the CMOS/BIOS' battery. Place the bottom panel of the notebook
computer back on and screw it back into place. Place the Compaq Presario
F500's battery back into its housing compartment and press the "Power"
button to turn it on. Your CMOS/BIOS will now be completely reset. Good luck and please let me know how you get on!!!!
Try draining the power of the computer first. completely shut it down by pressing poweer button for like 5-7 sec. then unplug power supply from the outlet. then press and hold power button for another 15-20 sec. After that, plug back in the power cord, and turn computer on normally.
The power on buttom might be it.
Before doing anything else, check and fix the power ON button.
I have a tower that gave me the same trouble.
The Power On button somehow was out of place.
Once I aligned it, the tower worked again.