HP Compaq nc6400 Notebook "power loop" Questions

Toshiba no powerlight when pressed just loops and power light and keyboard blinking light when power button pushed no display on power light black screen loops and blinking power light battery out ...

no power button light loops blinking light on caps lock and chrg light push the power button no light response from power button and it loops with blinking lights on caps lock and power charge light ...

...loop for many many cycles. Any ideas? thank you take the battery out after that then press the power button for 5 secs. and then wait like 10 secs. then put your battery back in and restart see if it ...

Unit powers on then goes into continuous loop More info please . how far into boot process does it get?. where does the loop begin and end?

loop. Tnx Hi, try pressing the power button and holding it for 10 seconds. Then wait a while. Turn it back on, you may press F12 or other key when the Samsung Logo appears (before Windows Logo) to see

...power button until the computer turned off. When I tried to start it again, it started the following loop: First the Acer screen, the the Windows XP screen, then a screen that gave me options of ...

...power button for 30 seconds. reinstalling battery and plugging in. same problem, no change probably a boot loop, hold down the f8 key when you turn it on untill you see a boot menu and select "safe ...

...power button until it stops and then start it again) it never shows me any boot screen it just goes into that loop immediately. I can fix the problem as long as I boot into BIOS but as I said it ...

loop and will never come out of it. Instead of pulling the SD card out I will try to force power cycle by pressing the power button for few seconds. Before it power cycles take the card out and let it

win7 problem power off my laptop does not power off when i shut it down. fan and touchpad still working Sounds like it is stuck in a loop. Press and hold the power key until it powers off.