Weird acting, motherboard, system or harddrive?

Gazi

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May 13, 2011
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Hi,
Since last weeks I've noticed weird system acting. Computer can run well untill the time when it frozeing for some time and then back to normal. It happens when i try to ctrl+alt+delete or minimanizing/maximizing game. When computer is frozing even keyboard don't responding(pushing capslock, num lock, scroll lock and lights don" want to turn on untill system unfroze- never had this issue with keyboard before even on huge slowdowns). After reset computer back to normal.... for some time. Don't know that important but during compuiter startup(just before "welcome") i have white lines for a second. Anybody?second