My computer freezes and shows some PIXELS on the screen.

My computer freezes when I'm playing games and watching videos on youtube. :(
Then it will show a crash pixels with a "ENGGGGK" sound.
Please help me =( This freezing is so annoying.
I've checked my GPU temperature and it drops down from 11Celcius to 19Celcius. Is it bad?
I have replaced my RAM and my HDD but this thing still exist.
Note: I'm not overclocking, my bios is save as DEFAULT settings.

Here's my specs:
Processor: AMD a6-3670k with Radeon 6530D
MoBo: EMX a55- GT
RAM - Transcend 2GB RAM
HDD: 500gb

HELP ME PLEASE! Reply if you want to know more and willing to help me :(
3 answers Last reply
More about computer freezes shows pixels screen
  1. What games are you playing and on what settings?
  2. Warcraft III, with 1360x768 resolution. And medium settings.
  3. What is your Power Supply?
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