My computer is subject to chronic (that is, it happens every few months) instability, which manifests itself in the form of heavy graphical glitches, GPU driver failures, distorted sound, network instability and the such. Despite knowing my way around a computer, I have not been able to narrow down the source of these issues, so this is a toss up between drivers problems, hardware problems and a more general electrical problems in my home.
I'd like to find a tool that can at least investigate the second one, ie. the state of my components. Can anyone recommend a good one ? Alternatively, any thoughts about possible causes for these problems ?