Pc is working but after 1 hour its show blank display

[jitu0011]

Hello,
i was install windows XP in my home pc and when i start the computer after 1-2 hour it's showing blank display and restarting..?

 

[Proximon]

You will have to provide a lot more information if you expect any serious help.

Tell us all about the computer. Is it a brand name computer? Home built? If it's not a brand name computer, what parts does it have?

Where did you get the XP? What version?

What are you using the PC to do?

http://www.tomshardware.com/forum/264823-31-progess-troubleshooting