Hi,
Check you motherboard and hard drive, make and model again, When will it hang?
Whenever you are on the internet or when you try to do something?
Will it happen ever time?
Did it work well before?
What has changed?
Are all the fans working?
Will it start to work after a time or stay frozen?
Will it happen when not online?

it will hung , if i open some folder on my network connection, surfing in the internet in about 1to 2 hours, it will instantly hung up when i open games application, its never happen before it works just fine,,,, fans are fine... it stay frozen including the keyboard and mouse... i tried restarting it, but same result i get.., online or network and even applications from its own

Hi again,
I am sorry but I do not understand. first you say it will work for 1 to 2 hours then you say it will hang instantly when you try to open a game. Do you try to open a game straight away or do you wait 1 to 2 hours?
Can you open the game when you first go online?
Is it only when you go online and try to access a game?
Will it hang when not using the internet?
Will it hang when you are online but not opening a game?
Is it the same game every time or different games?
When you tried restarting your PC, was it still frozen or could you use it online for 1 to 2 hours?
Please give us some information about your PC.

when i try to open a game or network folder, it will hung up instantly, while when i am going surfing on the net it will last for 1-2 hours then hung up, when i tried to restart it, it works same....
as i explain