Could be the power module on the board is fried.

Try remove the battery, AC adapter and holding down the power button over 15 seconds to discharge and reset the laptop.
Then connect AC adapter...

Could be the HDD controller onboard causing the problem.

Unplug the AC adapter and the battery.
Try remove the HDD and the removable devices, then holding down the power button do not let go for...

Could be the PC hardware problem.

Now, try reset the PC and see if works.

Unplug the power cord, holding down the power button over 20 seconds to discharge and reset the PC.

Then connect the...

Try reset the Bios.

If the CD cannot boot the computer, seems the mainboard is faulty again.

Try unplug the AC adapter and the battery, holding down the power button over 15 seconds to...

Try install the latest chipset driver and reboot PC, then make sure you got the correct drivers for all the rest of the devices.

If there is mainboard hardware issue, this cannot be done by the...

Try remove the power cord to the PC and holding down the power button over 20 seconds to discharge the PC.

Connect the power cord again and press the power button.

Hope this helps!
Bill

Check the monitor on other PC and check the VGA card as well.

If you have known good RAM, try use that.

Hope this helps!
Bill

Please advise what type of PC and more details.

Any beep sounds, what is the monitor LED status...etc

try update the Bios to the latest version.
Then use 1 new RAM to test teh laptop.

Compatibility maybe a problem.

Or try backup data and reinstall the OS with both new RAM installed.

Hope...

Replace the broken wire and see if your laptop POST.
For me, I would say, probably not since CPU already overheated, maybe the mainboard not letting the PC to POST because it detects the wire is...

Do you have a known good HDD?

Battery is the big battery
which can be easily taken out from the base of a laptop, AC adapter is the power cable that connects the laptop to the power socket in house and charging the battery.
...

Try reset the laptop by following steps:

remove battery and AC adapter, remove all other removable devices like PC card, USB connections...etc.

holding down the power button over 15 seconds,...

Try run from DOS the fixmbr and fixboot command to fix any boot file errors.

Check the PSU as well.

Hope this helps!
Bill

Check the power connectors and make sure there is no dust stuck the connection as well.

Reseat CPU and RAM.

Hope this helps!
Bill

Try install the new hardware one by one at a time and power on the PC.

Hope this helps!
Bill

This problem seems the same as the PC keep rebooting when clicking on the logon logo in XP.

Reinstall the XP works, the system has been infected by the virus and the XP needed to be reinstalled.
...

"i have 10 years of info on the computer that i can't lose"

Hope you are not using the HDD that is 10 years old as well.

For PC keep rebooting itself, most of the time is the OS registry error...

Check the CPU fan if that is turning, maybe the CPU overheated!

Hope this helps!
Bill

I would suggest start with the system chipset driver first, install the latest chipset driver and reboot PC to take effect.
After the system rebooted, check to see if the LAN card been installed as...

If you believed that the lightning damamged your PC, there are many parts could be faulty.

Mobo and PSU is the best part to start with, but VGA RAM CPU could be the faulty part as well.

Good...

Try use the Last Known Good configuration to reload the working driver profile.
You can do this by pressing the F8 key when PC boots, then select from the list LKGC and press enter.

Also, you can...

Test the PSU first to find out if it is faulty.

Reseat the CPU and the power connector to the mainboard may help!

Hope this helps!
Bill

Is there a nice link to get mp4?

Thanks in advanced!
Bill

Try swap the RAM in different slot or just use 1 RAM only if there is more than 1 RAM stick.

Check CPU fan for overheated issue.

Get to the HP web site and download the latest chipset driver,...

Try take the battery away from the mobo for a few minutes, unplug the power cord as well, holding down the power button over 20 seconds to discharge the mobo.

Also swap the RAM in different RAM...

Have you tried reset the BIOs to default and/or back up data and reinstall the OS?

Hope this helps!
Bill

For the Faulty Ram, I would suggest use a rubber to clean the lead contacts and try again.

Taking the RAM from the system should not cause any problem to the file system, just slow down the...

try use RAM on other RAM slot and reseat the CPU.
Check the monitor VGA cable connection as well.
If possible, use the monitor on other working PC and see if the monitor is ok.

Hope this helps!...

From the Start Run, type "shutdown –s" and hit enter to shut down your PC.
you may try use system restore to get back to the date when you can shut down the PC without any problem.

Hope this...

I wonder it the monitor ever been tested on other working PC.

Sometimes the semi faulty RAM or oxidized RAM slot may cause no beep but no screen output and shut down.

Hope this helps!
Bill

I would suggest try check the keyboard if there is any stuck key(s).

You may also try remove all removable devices like DVD, external KB/MS, PC cards, AC adapter, battery..etc.
Then holding down...

I would suggest you reseat the CPU.

Also there may be more than 1 connector from the PSU that you need to connect to the mobo.

If the PC shutdown in 1 second, I believed not a overheat problem....

Hope the following helps you:

Error Message:
Sound Hardware Test: An error occurred during direct play voice setup. The error code is 0x80004005.
Translation:
This error message may also be...

Could be your video card or RAM.

try swap RAM in different slot and/or reseat the VGA card.
Also check if the VGA card fan is working or not.

Hope this helps!
Bill

So another faulty mainboard?

without Ram, the system should beep.

Hope this helps!
Bill

Sometimes installing the new hardware may cause the system not to recognize the original hardware.

For me, I reset the laptop first by doing the following steps:

(1)power off and remove AC...

Use other CDROM controller on the mobo(move the CDROM cable to the other connector on the mainboard).
Install the latest mobo chipset driver, reboot to take effect.

If necessary, update the mobo...

I have seen a lot of laptops with similar problem causing by the power management part failure/ electric shockand thus caused the damaged to the system chipset.

Most of the time, the shocked power...

I have seen quiet a few problem like yours.

The solution is reinstall the windows.

Hope this helps!
Bill