Three Speed Cooling
 

1st pic: Schematic
2nd pic: Idle temps, minimum cooling.
3rd and 4th pics: Overclocked temps, Maximun cooling (CPU Burm/30 min.)
5th Pic: External loop

Minimum cooling:
The Eheim 1049 runs continuously, circulating water through the
entire loop with only the EBM/Papst blower on.

Medium cooling:
When the Iwaki starts, the Eheim circulates part of the water
through it's rad. And the Iwaki circulates water through the rest
of the loop with only the EBM/Papst blower on.

Maximum cooling:
Both pumps on, Blower and FFB1212EHE's on.