My PC randomly freezes, though it unfreezes sometimes if I hit the side of the tower unit quite hard (seriously). It does this whenever. Additionally, the PC turns itself off if I'm not using it, and then when I start it up again it says that it hasn't been shut down properly (so I think it crashes after inactivity as well). Also, when I try and turn the PC on sometimes the fan just runs and the PC doesn't turn on. I'm thinking all these things are connected...
AMD Phenom(tm) II X4 965 Processor
Microsoft Windows 7 Home Premium Edition (build 7600), 64-bit
ATI Radeon HD 5800 Series
Features: of Video Card
Video RAM 2.7 GB
Hardware T&L Yes
Pixel Shader version 5.0
Vertex Shader version 5.0
Free Disk Space
You Have: 247.7 GB
If you need anything else, please ask, thanks for trying to help!