Caps Lock blinking and freeze on my new laptop

[merlin]

Hi, I have a problem about Linux Lite. Now, I wanna tell about my new laptop.
I'd success to installed Linux Lite on my new laptop, that's no error when I tried Live CD or beginning installation.
When I want to use my laptop, a few minutes it's no problem.
But after I am using that for browsing the internet, listening a music, and write my project, my laptop is freeze and caps lock blinking.
So, I am push a power button to turn off it.
That's no once can happen, every I am using my laptop.
Can anyone give me a solution how to fix my problem?

Thanks