My Samsung R480 laptop freezes for short and inconsistent periods of time

I have a Samsung R480 laptop running Windows 7. It's great, I love it to death, but every so often it'll start having, for lack of a better term, "hiccups". It would freeze completely, emit a loud BZZZZZZT from the speakers (think when a video freezes and the sound gets stuck), then return to working order all in a span of 0.5~2 seconds. It has happened while I was playing Mass Effect, while I was watching both HD and non-HD videos, and while I was surfing the internet (which I've noticed while watching YouTube videos and playing Entanglement, but also noticed while using Facebook, minus the buzzing sound).

My Initial hypothesis was that my GPU or CPU were overheating as it would shut down while playing Mass Effect, but when I turned off my WiFi card hardware using [fn + F9], the problem was resolved. As I currently see it, it could be a problem with my CPU, my WiFi card, or my sound card. It could also be a software related issue, possibly an ill-functioning process. It could be chrome related. A memory leak from chrome maybe? Does anyone know how to resolve this?

Problem's still there. I noticed it only happens when my laptop is on battery though. I have uploaded a video of it on youtube: http://www.youtube.com/watch?v=ldn6tqQsguM

I would guess that the problem happens when Windows is scanning for new wireless networks via the WLAN AutoConfig service.

Here are some ideas :

• Disable WLAN AutoConfig
  If you need wireless, then disabling this requires using some other wireless utility, maybe the one provided by your wireless adapter manufacturer, in order to connect to wireless networks. Or you can use a batch file with the netsh command as described in the link to turn off the service once you are connected.
• Disable network discovery
• Disable homegroup
• Disable IPv6

Had the exact same problem. Fixed it by going to the Samsung website and downloading/installing ALL available driver updates. Not sure which exact ones(s) fixed this particular problem but

Happy with my computer again now. :)