I have a HP 5060zx laptop that does not boot up sometimes: The power light comes on, but there is no display. I tried connecting to an external display and nothing happens on that as well. This problem happens seems to happen intermittently. After this problem occurs if I leave it off for 15 mins, then I am able to bring it up in Windows Safe mode, but then the computer hangs. If I power off after that and power on, the laptop does not boot up once again.

The laptop has been running fine for the last 1 year and 6 mos. and suddenly this problem showed up last week.

Any help would be appreciated!

Just bought my Last HP Product

You know, I had the same problem and don't like this line at all. What I finally discovered was that the light on the back causes some kind of problem with booting.
I'm quite suspicious of the reason the computer doesn't power down totally. I don't like it to be easily bootable when I'm not sitting at it.

What I did notice after a lot of delving into the problem thinking it was everything from motherboard to power supply, was that my HP is plugged into a surge protector. (I've tried two different ones now.)

If I turn OFF the surge protector totally so no power at all can get to the computer when the computer switch is OFF, then when I try to power up the computer again it won't start.

The way to overcome this is to turn on the power switch, turn on the computer, and then wait half an hour for it to warm up like a rusty old car.

That works every time for me.