Silverstone Sugo SG07: The Ultimate Mini-ITX Case?

Cases|Damping
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Test Results: GeForce 9300 IGP

System Measurements (load)
System Fan Speed
off
5V
7V
SPL@1m
18~19 dBA
18~19 dBA
21 dBA
System Power
96W
93W
92W
Avg. Core Temp
54°C
39°C
37°C
GPU Temp
95°C
83°C
79°C
Ambient temperature: 24°C.
Ambient noise level: 11 dBA.
Idle noise level (system fan off): 17~18 dBA.
CPU fan @8V.
Dark gray boxes indicate testing failure.

Putting our test system on full load resulted in the power supply fan increasing in speed, raising the system noise level by 1 dBA from 17~18 dBA@1m to 18~19 dBA@1m. The system fan was vital for cooling as the integrated GPU reached 95°C during our initial stress test with the fan off. It usually fails at around that temperature, causing the system to freeze, so we stopped testing before it got any hotter. Setting the fan to just 5V delivered 15°C and 12°C improvements to CPU and GPU temperatures respectively. Cranking the fan to 7V (the low setting) resulted in further minor improvements but it wasn't worth the extra noise.


Our IGP test system measured ~21 dBA@1m on full load.

Test Results: Radeon HD 4870

System Measurements
System State
idle
load
System Fan Speed
7V
12V
SPL@1m
21~22 dBA
35 dBA
36 dBA
System Power
115W
270W
269W
Avg. Core Temp
38°C
41°C
34°C
GPU Temp
78°C
88°C
87°C
GPU Fan Speed
960 RPM
2080 RPM
2080 RPM
Ambient temperature: 25°C.
Ambient noise level: 11 dBA.
CPU fan @8V.
Dark gray boxes indicate testing failure.

Adding a Radeon HD 4870 increased the idle noise level only by half a decibel. On load, the noise difference was monstrous with the system outputing a massive 35 dBA@1m; the quality of noise was okay, but the volume was incredibly high. When we throw the 4870 into most ATX tower cases it typically runs much quieter, but the tight confines of the Sugo SG07 proves to be a more thermally challenging environment. The GPU fan is also on its side right next to the vent which gives the noise it generates a clear path to our microphone position. Turning up the speed on the system fan only improved CPU temperatures — the indirect airflow against the back graphics card PCB didn't help cool down the GPU.


Our HD 4870 test system measured 21~22 dBA@1m idle.



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