The control box when I'm running the most power consuming program I've found: Star Trek Elite Force. It's based on the Quake III engine. The game had run for around two hours now, so it's stable.

GPU temperature is 50.1°C, CPU temperature 56.4°C, case air at 30.8°C.

The fan voltage meters are ranged differently. The red is ranged 0-12V (the upmost led is hidden) for the CPU fan, which starts early (3-4V) and runs enough at this setting (6-7V).

The green ones are for the upper and lower group of Papst fans, which starts late (6-7V) and is thus ranged from 5 to 12V.