Pc restarts while installing Win XP

hello,


I have a PC Lenovo Desktop PC 8823 3CQ,2.8 Ghz Dual Core, 256MB (400 Mhz) RAM, 80GB SATA, CDRW DVD Combo, Speaker, Keyboard, Optical Mouse but I spoiled the drive and was in warranty as the hard drive gave me another, the matter is that now .. I have installed the new hard drive, the bios of the computer recognizes only 20gb, that is no problem .. I have partitioned with diskmanager up there and everything's fine, but it turns out that you put the CD of Windows XP SP2 on CD-ROM installation begins, but there comes a time when only the computer is restarted and new boots particularly as the beginning .. that problem may be? I had never before this happened ..

Hello, cutting power and has cleaned the interior, fans with a brush, the memories dismantled and cleaned with alcohol and check that the fans when it starts operating.

Greetings

hello, thank you for such help .. .. .. the problem is solved after completely clean the PC hardware level .. proceedings to begin the installation of xp and restarted the continued .. but I remembered that he had been recently added AGP video card 16MB, so the draw, put another video card ... install xp .... problem solved .. I am now working on my pc ..