constant CPU spikes when gaming/watching video

I have a Z77 board, your Bios will be a little different but here is how I set up a 4.5 OC for my CPU using turbo. For more help you can post at the MSI forums. https://forum-en.msi.com/

Try using a different browser and see if the spiked continue. Your specs say FF, so I would check with Chrome or IE.

Okay, your specs said Mozilla Firefox. Try running IE and see if it changes

GokAy said:

Alright, I see I was not through with my suggestions.

Can you please (one step at a time, not all together at once, move to next if one doesn't help)
- disable C1E in BIOS, login, see if it helps
- start in safe mode
- perform a clean startup Troubleshoot Application Conflicts by Performing a Clean Startup

@Dude: The problem is persistent in games too, not only a browser issue.

Okay, I will step aside and follow you

Might not be related in your case but I had the same problem when updating to the latest Skype which would cause all video/audio playback on and off line to stutter and freeze whatever I was doing for a few seconds at a time and at present I could only solve it by going back to an earlier version of Skype (7.2) or quitting Skype completely and if you're using Skype might be worth trying to see if that's the cause