The winner of the day

A co-worker had a system in that the user stated was crashing a lot. Co-worker booted it up, started a diagnostic, system crashed. So he opened the case to look inside. Apparently one of the blades on the CPU fan was bent so it was making more noise than usual. So the user stuck a twist tie into it to keep it from moving and making noise.

Hmmm, I wonder why the system kept crashing?