Performance if one of the main reasons why one would invest in a watercooler, and most that consider this as an option are overclocking their systems as well, so we will poll temperatures at various CPU frequencies and voltages to show you how this cooler perform in a real life environment.
- AMD Thunderbird 1.4GHz AYHJA stepping
- Abit KG7 RAID
- 2x256MB Crucial 2100DDR, none parity
- 2xIBM 60GXP, RAID0 (disk striping)
- Elsa Gladiac GTS2
- Enermax 431W powersupply
- Windows XP Pro operating system
We will during this test look at idle and full load temperatures at different speeds. The first temperature is measured at default speed and voltage. To see the coolers scalability, we increase the multiplier by 1 up to where the system no longer is stable at default FSB (133/266). This is to make sure that all other components but the CPU is running at their default specifications. After that, we also show you the maximum speed with both multiplier and FSB tweaked. The core voltage is set to 1.85V except at default speed.
Genome@home has been used to stress the processor. If the Processor is stable at 100% load after one hour of Genome@home, the temperature has been polled.
Fig. 7 The temperatures. Degrees above ambient.
Looking at the chart above, you can see how well the cooler perform at different speeds. At default speed and voltage, the temperature is 8 degrees above ambient temperature at idle and rises to 12 degrees above ambient at full load. The maximum speed attained with this cooler was 1668MHz with the core voltage set to 1.85V, FSB to 139MHz(278) and multiplier set to 12.
Fig. 8 All temperatures Celsius
The chart above show you all temperatures measured. All temperatures are in Celsius. The difference in temperature between 1569MHz and 1668MHz are not much -- 1 degree at full load and 4 degrees at idle. The reason is that the voltage is the same, and the wattage output is more or less the same.