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be quiet! Pure Rock Review


be quiet! Pure Rock Testing:

Testing of the Pure Rock will be accomplished by installing the cooler into the test system case, rather than a test bench. Most systems are built and mounted into a (relatively) sealed chassis, so this method will be used to generate the idle and load results to give a real world view as to the cooling performance one can expect, based on the test system listed below. Of course, your results may vary by several degrees due to case design, case fan placement, and ambient air temperature. The CPU load is generated by Prime 95 version 27.9 for a period of two hours, with a cooldown period of one hour after the computer has returned to an idle state. Real Temp 3.70 is used to log the temperatures with the highest and lowest averages across the four cores of the Core i7 4770K test CPU. Ambient temperatures are kept at 24 °C during the testing to minimize the effect of temperature variations. Each cooler is tested with the manufacturer-supplied thermal compound as delivered.


Testing Setup:


Comparison Coolers:






Idle temperatures with no overclock come in at 26 °C, while it jumps to 78 °C under a load, which is a little on the warm side, but still not too bad. No thermal concerns here. Now, after we put the overclock in gear, the idle hits 32 °C, which is in the middle of the pack. No surprises here. Now when we crank up the overclock and load CPU the temps come in at 82 °C, which is starting to get a bit toasty, but the Pure Rock does keep the temps in check. Four degrees is a fairly narrow gap between overclocked and non-overclocked. I was expecting a wider gap, but 82 °C is still well below any thermal alarm bells going off, and be quiet! keeps the noise down as is typical with all of its products that I have tested. Even with the cooler fan running at full speed, the regular case fans drown out the Pure Rock fan.

Now, given that this cooler is not directed at the people who administer the type of thermal beating often seen in overclocking, it holds up well and keeps things from melting down - at least with a mild overclock.

  1. be quiet! Pure Rock: Introduction & Closer Look
  2. be quiet! Pure Rock: Closer Look (Continued)
  3. be quiet! Pure Rock: Specifications & Features
  4. be quiet! Pure Rock Testing: Setup & Results
  5. be quiet! Pure Rock: Conclusion
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