The testbench was composed from the following hardware:

CPU: Intel I5 Retail @ 3.2GHz & 4.0GHz

Motherboard: ASUS P7P55D-EVO Preliminary

RAM: G.Skill Ripjaws F3-12800CL8D-4GBRM

Video: Sparkle Calibre X460 1GB GDDR5

Power Supply: Cooler Master Real Power Pro 850W non-modular

HDD: Hitachi 5K250 2.5'' HDD

Case: Cooler Master ATCS 840

Temperature tests

The testing procedure was the following:

- the system was left in IDLE for 30 minutes after the system booted up

- OCCT 3.1.0 was started with the following settings:

CPU:OCCT

Test Type: Custom -> 30 minutes

Test Mode: Small Data Set

Priority: Normal

after the test was complete, the system was left again alone for 30 minutes, for the temperatures to stabilize.

All the tests were performed inside a closed case, the Cooler Master ATCS 840 with all stock fans installed.

3.2GHz

4.0GHz

Extra Noise Tests

To be able to measure exactly the noise the pump/plate combo produces, all fans in the case were turned off (including the one from the radiator), along with the HDD, and the video card was removed.

With the system off, the noise in the room was measured to be 30.1dBA, and when the sound meter was placed 4 centimeters above the pump, we have measured 37.5 dBA.

When connecting the pump to the fan controller, we could find out its rotation speed, which is 1440RPM; the speed of the pump can be also monitored with the help of the motherboard.

Finding the fan speed was a problem, because it comes only with two wires, so RPM monitoring is impossible in its current state. When connecting the fan to a Kaze Master Server, the fan will start up on full speed, and after a couple of seconds, it will stop completely; if we will connect the fan to the motherboard, it will only run at full speed and the noise measured was 53,3dBA. In normal operation, the Kühler 620 modifies the fan voltage depending on the temperatures and it is kept at much lower speeds, so the noise is reduced dramatically.