Thread: Why Computer hangs

Computer hangs, and hangs it seq. read:
1. recorded image on the monitor, issued a sharp sound from the speakers, turned off thinking (not lit).
2. Recorded image on the monitor turns off thinking (not lit).
3. appear on the monitor strips of different colors, muted thinking (not lit).
4. A screen of death (says there a problem with memory)

Tried to reinstall the os, reinstall the wood. all resultant.
3 months ago, installed os Windows XP XTreme_v7.8 and everything was working without a problem.

Yesterday, it all began again to work on your computer, it is simply impossible.
Reinstall the wood, did not help.

Processor: AMD Sempron 3000 + 1.80 GHz
Graphics Card: Radeon 9250 128 mb
do not know, but like on VIA chipset
RAM 512
HDD: WD 80 and 320

Prompt please, what can be done, unnecessarily on your computer installed a lot of needed programs.

If possible, you should first check the RAM (get a friend at the time, for example), if not help check the graphics card, if not help, you should change your computer ( if the hard left and the old computer will be AMD processor, it might even reinstall Windows will not need to).