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Thermals & Acoustics
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Thermals & Acoustics
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Test State
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Temperatures
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System Noise
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CPU
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HDD
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GPU
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@1m
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@0.6m (VESA)
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@0.6m
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Idle
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41°C
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30°C
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47°C
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21~22 dBA
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22 dBA
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24 dBA
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x264 Playback
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50°C
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33°C
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53°C
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CPU Load
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62°C
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31°C
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55°C
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CPU + GPU Load
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73°C
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33°C
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68°C
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23 dBA
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24 dBA
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25 dBA
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Ambient temperature: 22°C.
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The EB1501 stayed relatively cool until we used Prime95 to put the CPU on full
load. Still with CPU and GPU temperatures of 62°C and 55°C respectively,
it wasn't much of a concern. The addition of a GPU load heated up the CPU and
GPU by another 12°C. The system's fan, stayed at almost a constant 3050rpm
speed throughout testing, only picking up the pace when the GPU temperature
surpassed 60°C. Even then, it only increased the system's noise level by
1~2 dBA.
The noise generated by the system was broadband, sounding like a low, soft
hiss, rather pleasant compared to most SFFs. It measured about 24 dBA@0.6m from
a 45° angle, and 2 dBA less when VESA-mounted, measured from directly in
front of the monitor. Overall, it's a suitably quiet nettop, and its unlikely
you'll ever experience the fan spin much faster than its idle speed — we had
to do a complete CPU and GPU torture test to accomplish that.
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EB1501 idle @0.6m.
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EB1501 idle, VESA-mounted @0.6m.
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SpeedFan Support
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SpeedFan correlations.
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Surprisingly, we found that the EB1501's fan could be controlled using SpeedFan.
In the Advanced configuration menu, look for chip "IT8720F" and change
PWM 1 mode to "Software controlled" to enable control using the Speed01
setting. With SpeedFan you can drop the fan speed all the way to zero, or ramp
it up to its maximum speed of 5200rpm, though caution obviously should be taken.
We suggest keeping the fan spinning fast enough to keep temperatures lower than
what we recorded at full load.
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