HP laptop does not start any more

[Jacek]

My Hp laptop does not start. It began with a difficult start on the screen remained black and the disc does not work, a result of this I tried to reinstall xp, the first part of the install goes well but after 15 minutes the laptop reboot and installation is done. I tried changing the hard drive same. I tried to install vista and reboot. I put Knoppix which runs only on cd good start, but the computer still reboot itself after 15 min.

[Dominic8]

Perhaps overheating problem, check the cooling fan, clean the fans/air-holes

[Jacek]

yes when I changed the hard drive I had the opportunity to all dusted, but that has not changed

[samar69]

Perhaps a problem with power supply, try with the battery only for checking before it is loaded

[Jacek]

yes I also tried removing the battery, only with the battery, but still the same

[samar69]

If the charger is in good condition, even when checking the temperature and memory, the hardware problem is the possibility because you have changed. Fixed on the PC when they reboot alone is often a problem of capacitor, on laptops I can not tell you, probably an electrical problem, but at what level? Problem of power connector, as it happens.