Lenovo ThinkCentre A70Z & Asus EeeTop ET2203 All-In-One PCs

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Acoustics & Thermals: Lenovo ThinkCentre A70Z

System Measurements
Activity
SPL@0.6m
Avg. Core Temp
HD Temp
Idle
22~23 dBA
35°C
34°C
720p x264 Playback
22~23 dBA
50°C
35°C
CPU Load
22~23 dBA
62°C
35°C
CPU + GPU Load
22~23 dBA
65°C
35°C
Ambient temperature: 21°C.
Ambient noise level: 11 dBA.

The fan(s) in the A70Z kept the system reasonably cool with an average core temperature of 35°C when idle and 50°C during x264 playback. Full load brought the core temperature above 60°C.

The measured SPL at the ISO 7779 user position of 0.6m was 22~23 dBA regardless of the system activity. The noise generated is likely adequately low for most users, but for someone used to super quiet PCs, it is marginally tolerable. The acoustic character was somewhat high pitched and had a noticeable uneven wobble.


The A70Z measured 22~23 dBA@0.6m.

Acoustics & Thermals: Asus EeeTop ET2203

System Measurements
Activity
SPL@0.6m
Avg. Core Temp
HD Temp
GPU Temp
Idle
21 dBA
43°C
33°C
52°C
720p x264 Playback
23 dBA
47°C
33°C
61°C
CPU Load
31~32 dBA
67°C
34°C
60°C
CPU + GPU Load
36 dBA
71°C
33°C
76°C
Ambient temperature: 21°C
Ambient noise level: 11 dBA.

The EeeTop's temperatures were also fairly reasonable with the cooling system doing an acceptable job. However, with both a CPU and dedicated graphics card to cool, the EeeTop has a tougher time balancing thermals and acoustics, with temperatures rising a tad more than the A70Z on load. In addition, it's a much noisier machine when heavily stressed due to the challenges inherent in the tight confines of the system's thin profile.

When idle, the EeeTop was fairly quiet, measuring 21 dBA@0.6m, and sounded very smooth with a gentle hiss emanating from the exhaust port. Subjectively, the noise was low and smooth enough to be easily ignored. During x264 playback, the SPL increased by 2 dB, but retained its benign nature. When placed on a real CPU or GPU load, the fan ramped up quickly, settling at above 30 dBA after temperatures stabilized. The noise was a lot louder and whinier, and just generally awful.


EeeTop idling at 0.6m.


EeeTop with both the CPU and GPU stressed at 0.6m.



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