I recently got my PC cleaned. The technician said everything looks fine (including wiring). Playing Andromeda on maxed settings with my PC results in average CPU and GPU temperatures of 70C (and max load). Temperature here is 32C (although my room is inexplicably hotter). The room stays closed and the AC runs quite often too (at 24C - its efficacy is dampened by the bed blocking its path; room still is cooler).