1. What does Event Viewer say happened.
2. What were GPU / CPU temps prior to failure ?
3. When you say "touch it" touch what ? Case, GFX card, KB ?
4. List PC components including full model numbers.... descriptions like Mushkin Memory, Asus MoBo, or Corsair 500 watt will not allow diagnosis.
The "touch it" part implies a lose cable or ground issue.