Test: Einzeltest: NZXT Havik 140 Heatsink
Zitat: Pro: + Solid Mounting on Sandy Bridge
+ Rubber Mounted Fans
+ High Powered Fans
Contra: - Rubber mounted fans, rubber tends to rot over time
- Mounting on AMD is labor intensive
- Lack luster cooling
- Flashy fans with no results
- No support for LGA1366
In our heatsink and waterblock tests we don´t really focus on overall load temperatures but rather how well the product can remove heat given a specified heat load. Since this is a real world testing method we need to take into consideration real world variables and estimate tolerances. This is why we normally only apply 85% of the total wattage output to our heat calculations. The resulting C/W number is used to rate how efficient a heatsink or waterblock is based on the given heat load. These numbers can be used to determine heat capacity, the larger the difference the less efficient the heatsink is. (aka not good for overclocking) During this test we were able to pump an estimated 163w into the heatsink and while overall temps are still less than stock the C/W rating indicates that the Havik has started to become saturated. This is not uncommon considering the heat load however, we don´t normally see this sort of increase with such a mild overclock or voltage increases. It should also be noted that we did test this heatsink using both 140mm fans operating in a push pull configuration at full speed. Despite the unique fan design and total airflow the fact that the fan is bigger than the heatsink means that the majority of the high speed air isn´t touching the heatsink at all. Had this cooler been enlarged or come with smaller fans the performance numbers may have improved. Keep in mind these calculations are provided for demonstration purposes only and may not reflect the actual lab tested C/W rating, but we´re pretty close.