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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The charger is functioning well. There are still two possible reasons why your computer is not turning on. 1. The battery, 2. The computer itself.
What you need to do is to isolate the problem.
Here's what you can do to isolate the problem.
1. Remove the battery from the computer. 2. Turn on the computer using the cord. Remember not to put back the battery yet. Just the cable and the computer connected. If the computer turns on, then, you need to replace the battery. 3. If it still not turning on by using the cord alone. Try to wiggle the cord to check whether it's loose or not. Check if there are some signs of power on the computer. If there is a power like lights lit in the computer, then, it's the computer that's having the problem. You need to bring it to a technician if that's the situation.
Please let me know if there are any development after doing the troubleshooting above so that I can get back to you if you need my help.
You can try and just pull the battery and the power cord for a few minutes, if that doesn't help may need to verify you haven't had a stick of ram or some other connection. If it's none of those it could be the charging circuit, or the amperage being off on the power adapter. I have seen that numerous times
i'd say first try a known working ac adapter and if that Working AC adapter works and the system detects the battery well, then it could be the ac. If not then try to borrow a working battery to get your final conclusion. if the working battery still doesnt work properly, then it could be the system motherboard. If battery and ac adapter (working) are not available, then check the BIOS and see if it really doesnt detect the battery. try flashing the BIOS and still if that fails, then replace the battery.