Call it a Hardware Problem

[Max5fromcoh]

To make a long story short, I was playing WC3 and when one the animations finished, it froze my computer with all my appliances still lighting correctly (G15 Keyboard and G5 mouse), the monitor was also working. I tried turning off the computer and turning it on again. The result was the monitor always showed the no signal thing. Also, the mouse and the keyboard didn't light up. I went to a friend and he told me that either the battery of the RAM fucked up. So, we went to go buy a battery and new ram which was about 900 bucks. Now the new battery is installed, but I'm still getting the same problem. Anyone know what's wrong?
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[IAntDemo]

900bucks for new memory and battery? don't listen to your friend mate, if its the ram it would bleep.

I'd say it could be your cpu or graphics, best to leave it off for a good hour and tell me if it does the same.

You should go to the pc shop and ask them to diagnose it and test it with diffrent parts.