Random freezing when playing video games.

I recently got a 32" tv which I am using as a monitor, hooked up using hdmi. During gameplay my computer freezes for a second or less and then everything is fine. This only happens when I play games. I was wondering if its because of the tv my gpu has to push out more power b/c of the hdmi setup?

My previous monitor was an hyundai 17" crt using a vga cable.

I don't think it has anything to do with any particular game b/c they all ran fine before at 1280 x 960, and I now run games at either 1280 x 720 or 1360 x 768.

Do I need a more powerful PSU, the one I have is a Xtech 500W with a over a years use. (I am in the process of getting a Thermaltake TR2 600W)

My specs are:
Win 7 Ultimate x64 SP1
AMD Phenom II X4 965
Kingston 8GB DDR 3
2 hard drives at 7200 rpm
nvidia gtx 550 Ti

I have the latest drivers for my gpu and mobo.

Could overheating be an issue? considering your computer has to work harder due to the bigger screen size/resolution. Or it might be due to switching from a vga to a hdmi, it somehow affects the graphic card. :\

billytale13 said:

Could overheating be an issue? considering your computer has to work harder due to the bigger screen size/resolution. Or it might be due to switching from a vga to a hdmi, it somehow affects the graphic card. :\

I also suspected that as well, but I have since changed my power settings from High Performance to Balanced in control panel, and have not had any problems since. So I'm gonna get a new PSU and a better case for cooling. Thank you for your reply.