I'm afraid these dumps point at a failing CPU. One of the dumps is empty, which is a worry in itself, one of the others is a WHEA_UNCORRECRTABLE_ERROR for a machine check (a hardware failure). The two killer dumps are both CLOCK_WATCHDOG_TIMEOUT bugchecks, they happen when a processor in the CPU fails to respond to a clock synchronisation request. On rare occasions this can be due to a bad driver, I'll need to check the kernel dump to see that - and your kernel dump is corrupted (another concern), but typically this is a failing CPU.
I've downloaded your kernel dump on two different browsers, so you might want to try uploading it again?
I think it would be wise for you to stress test your CPU before doing anything else. First though, give the PC a good clean, especially the fans and fan blades, also check that your CPU cooler is functioning properly (what cooler do you have)? Then place the P{C in an area where it has clear air all around it. All this is important because this test WILL make your CPU run hot....
- Download Prime95 and a CPU temperature monitor (CoreTemp will do).
- Keep the temperature monitor running all the time you run Prime95. Your CPU will get hot!
- Run each of the three Prime95 tests (smallFFTs, largeFFTs, and Blend) one after the other for a minimum of 1 hour per test, 2 hours per test would be better.
- If Prime95 generates error messages, if the system crashes/freezes/BSODs, or if your CPU temp reaches 72°C (Tmax for your CPU), then stop Prime95 and let us know what happened.
Note that a properly cooled and stable CPU should be able to run all Prime95 tests pretty much indefinitely.
FYI: The small FFT test stresses the CPU more than RAM. The large FFT test stresses RAM more than the CPU. The Blend test is a mixture of the two.