Computer Troubleshooting
I have a custom-built computer that I built myself about 5 or 6 years ago. Over the last year or so it has begun bogging down. I have wiped the drive and re-installed a few times just to have a clean slate. However it has a hard time running a lot of stuff now. An example, I used to be able to watch YouTube videos in full-screen at 1080p. Now I can't even watch them non-full-screen at 320p with out it being very choppy and laggy. I know it is not the internet connection, speed, or router as my girlfriend's laptop that is only a year old can go full-screen at 1080p flawlessly. I believe I did memory tests. I tried swapping my graphics card out with one that is a year newer than mine and it made no difference. The processor when playing the videos tops out at 100%, which I don't understand why. I have two ethernet ports but switching to the other made no difference. My guess is that the components overall are just too worn out now but I don't know. Any help is greatly appreciated as this has gotten very frustrating.
System
Motherboard: ASUS A8N32-SLI Delux
Processor: AMD Athlon 2.2GHz Singlecore
Ram: 2GB OCZ DDR PC3200 Dual Channel
Video: nVidia GeForce 7600 GS
Power Supply: Apevia 500W
OS: Windows XP 32-bit with SP3