My HP DV6700 turns on and off repeatedly after pressing the power button. The LED lights turn on and I can hear it making noise but then it shuts off before anything is displayed on the screen, and then it turns off and then turns on again and repeats the process. I have tried reseating the RAM to no avail. Is there anything else I can do?
EDIT: I have tried holding the power button down for a minute with the battery and AC adapter removed. Actually, the last thing I did before this issue started was holding down the power button for a minute. I tried it again anyway.
Pressing F10 quickly during boot causes the laptop to hang at black screen. The black screen slightly flashes between dark black and light black, as if the screen's backlight is turning on and off. It is very slight.
I tried reseating my hard drive, disc drive, and CMOS battery for ten sconds, no benefit.
EDIT: I have tried holding the power button down for a minute with the battery and AC adapter removed. Actually, the last thing I did before this issue started was holding down the power button for a minute. I tried it again anyway.
Pressing F10 quickly during boot causes the laptop to hang at black screen. The black screen slightly flashes between dark black and light black, as if the screen's backlight is turning on and off. It is very slight.
I tried reseating my hard drive, disc drive, and CMOS battery for ten sconds, no benefit.