c90s wont switch on but when i .....

hi there i am new to this ,i have an asus c90s ,the problem is when i shut it down & go to turn it back on it wont do a thing ,however if i unplug the power adapter & remove battery then put it back in ,push the on button it works normally and still works normally when i plug back in the power adapter, but when i shut it down again i have the same problem.
any help greatly appreciated ,cheers

 

Is it still under warranty?

something like that sounds hardware related and cant be fixed, so sending it out for repair sounds like the only option.

your sure your shutting it down and not putting it into hibernate or something right?

 

its out of warranty ,and im not putting it into hibernate, the only thing ive done is add an internal tv tuner, this problem happened a few days aferwards

 

If you press and hold the power button to turn it off, can you boot right back up without doing the battery thing?

 

no that doesnt work

 

Have you tried resetting the BIOS to factory defaults?

 

yes still no joy ,it reboots fine

 

If you take the battery out and turn it on, does the same thing happen after you subsequently shut it down and try to power back on? That would rule out the battery at least.

If you find that the battery is the problem, you could try recalibrating your battery from the BIOS.

 

yeah still wont turn on

 

Maybe your AC adapter is the culprit... edit: does the same thing happen if you have the AC unplugged and shut down? If you're running from battery power only and have this problem obviously that rules out the AC adapter too... so that would point to a hardware problem as ViciousXUSMC said. It's best to rule out everything else, so also make sure you are on the latest BIOS version. You can find updates at: http://support.asus.com/download/download.aspx?SLanguage=en-us

That's about all I can think of... good luck!

 

if i unplug the ac adapter then shut it down it still wont turn on unless i take the battery in and out

 

and i have latest bios

 

Sorry I couldn't help... but at least you've pretty much ruled out all the obvious stuff. It's probably a hardware problem, like a component on the motherboard failing. But it's probably not a huge deal as long as it doesn't annoy you too much. Again, best of luck.