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ACTIVE COOLING TEST RESULTS
We had not yet received the Turbo Module from Arctic Cooling, but we did
have a variety of 80mm, 92mm and 120mm fans to choose from. We
went straight for a Nexus 120mm as there was no compelling reason to try a smaller
fan. Users savvy enough to add their own quiet fan would surely
choose a 120mm as well. Some thick double-sided tape was applied to the corners
to keep the fan from being in direct contact with the fins and to accomodate
the plastic spacers. Each corner was strapped tightly to the S1 with zip-ties.
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A Nexus 120mm fan strapped to the S1.
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A marriage of silent cooling prowess.
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Comparison: Zalman VF1000 LED vs. Accelero S1 + Nexus
120 fan
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Zalman VF1000 LED
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Fan Speed
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Accelero S1 (Nexus 120mm)
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System Noise
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GPU Temp.
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VGA Amb.
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System Noise
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GPU Temp.
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VGA Amb.
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20 dBA
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76°C
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56°C
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5V
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<20 dBA
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67°C
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57°C
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22 dBA
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74°C
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55°C
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7V
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21 dBA
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64°C
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54°C
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24 dBA
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72°C
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54°C
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9V
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22 dBA
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53°C
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29 dBA
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70°C
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53°C
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12V
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23 dBA
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63°C
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52°C
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Note: Ambient temperature during VF1000 testing
was 1°C lower.
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Compared to our previous champion, the Zalman VF1000, the S1 with Nexus 120mm
fan was clearly superior. At each fan speed level, the noise output
was lower and more pleasing to the ear. The temperature results were impressive
to say the least. With its fan at full blast, the VF1000 could not match
the performance of the S1 and Nexus 120 fan even at an inaudible 5V. Only a marginal amount
of direct airflow was needed to push the S1 straight past competency and into
first-class status — increasing the fan speed past 7V was pointless as
there was no significant improvement.
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