אומרים שהוא רועש מאוד ושבמהירויות נמוכות יותר אז הוא כמעט לא מתפקד
But, the Freezer 7 Pro is not for everybody. At normal (12V) speed,
the fan is too loud for a quiet computer. Dropping the fan speed requires another device like the Zalman Fanmate, not a big expense, but something to consider. At lower speeds, the fan is much better behaved, but the cooling performance also falls off fairly quickly. The usable fan voltage range is just 12~9V, which seems quite narrow. In that range, the fan drops from 34
~37 dBA@1m down to just 20 dBA, while its cooling performance also drops from only 18°C rise over ambient to 32°C. Because of its high impedance fins, the Freezer 7 Pro does not downscale gracefully like the best of the low airflow optimized heatsinks. Anyone expecting the same stellar cooling performance at lower fan speeds and noise will be a bit disappointed.
This is not to say the Freezer 7 Pro cannot be used successfully to make a quiet Prescott system. It can be done with good case / system configuration to ensure a cooler ambient for the reduced thermal headroom at lower fan speed.
Overall, the Freezer 7 Pro is an impressive HSF with just a couple of faults, at least for us: The high level and odd surging turbulence noise at full speed (which might be specific to our sample?) and the
rapid drop in performance at lower fan speed. Arctic Cooling could make a very attractive quiet variant by simply removing a few fins to reduce the airflow impedance and adding some kind of speed control for the fan.
עריכה: ל Zalman יש 53.3 dBA
ראשי
צ'אט
02-01-2007, 19:40
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