Pavilion tx 1000 will not boot up

Question

I was using my pavilion tx 1000 a few months ago and the screen suddenly started to fade to full white and this happened. My notebook will not boot up after powering on. The lights come on except for the wifi and mute button indicators. The fan starts and then stops after a few seconds. The screen remains blank. I took it to a family friend who changed my motherboard and it's been working for about a few weeks. The screen faded again like the first time two weeks ago but I left the computer alone and tried to turn it on again and it magically worked. Just today I tried to turn it on after what seemed to be normal use without any problems and the same boot up problems occurred. Does anyone have a solution or at least an explanation? Any assistance is greatly appreciated.

Answer 1

I had a similar problem.  I finally got my HP tx 1220us to  boot at power up and also start automatically after reboot. All without replacing the motherboard.  It's been nearly two days now and the computer has been booting up without a problem. 
I do not know what cleared up the problem.  I did try all of the solutions offered on the net such as:
1. Removing the Norton Antivirus
2. checking connection for ram, hard drive etc.
3. Stopped the sleep/hibernation mode.
Nothing worked.  HP suggested that I replace the motherboard at cost of $399. I could not accept this simple and easy solution, not yet.  Not until, someone could tell me which part of the motherboard was bad or at least get me the error codes from POST.
I found out that one can buy for under $9, a simple display unit, which would tell you the POST error code and what the error was in the POST operations. However, this unit works only if you have a PCI slot or USB and Parallel printer port.  The Tx1220 does not have the PCI slot or the parallel printer port. Technically, one can buy a parallel to USB adapter for under $20. 
I checked with Geek Squad.  They wanted $70 to run tests on the motherboard.  So I decided to do something else for a change.
I took the following steps:
First, I restored the Operating System as soon as I got the notebook to boot up.  The computer started booting up at first try and even restarted after Windows restarted the computer.
Second, I also replaced the Norton Internet Security 60-day subscription installed automatically by HP by default to plain Symantec antivirus.
(Note- Windows does not do a clean uninstall of NOrton Internet Security or the Antivirus program.  You will need the Norton removal tool from Symantec to do a better job.)
Also, I later removed the symantec antivirus program and replaced with the free AVG program.
Third, I disabled CLCApssvc.  (I believe this program controls the webcam- not sure what else it does.  You will see this program listed in the error message -windows event viewer). 
Fourth, I also changed the screen resolution to low/medium settings,
Fifth, I stopped the sleep and hibernation mode in the power settings. 
I do not know what or which of the above actions actually cleared up the problem.  It is a mystery.
I strongly believe that this is not a hardware problem rather a software problem.  Something happens in between after POST completes its process and the OS takes over.  I might be wrong but, either SAV or CLcapsvcs leave behind a conflicting set of instructions, which stops the boot up process to Windows.