SilverStone Grandia GD09 & GD10 HTPC Cases

Cases|Damping
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TEST RESULTS

System Measurements: CPU + GPU Load,
80°C Target GPU Temp (at 22°C Ambient)
Avg. System
Fan Speed
670 RPM
(60%)
880 RPM
(80%)
980 RPM (90%)
1120 RPM (100%)
CPU Fan Speed
1740 RPM
(100%)
1500 RPM
(80%)
1320 RPM
(70%)
GPU Fan Speed*
1870 RPM
(60%)
1690 RPM
(55%)
1560 RPM
(52%)
CPU Temp
67°C
65°C
63°C
62°C
MB Temp
57°C
57°C
54°C
52°C
SSHD Temp
49°C
49°C
47°C
47°C
System Power (AC)
350W
360W
359W
358W
31~32 dBA
32~33 dBA
30 dBA
33~34 dBA
*set as low as possible to maintain target GPU temperature on load.
Ambient temperature: 25°C.

For our system configuration, the stock fans running at 90% (980 RPM) produces the quietest result, 30 [email protected] with the GPU fans at 55% speed and CPU fan at 80%. The 60% setting isn't even stable as some CPU throttling occurs (as evidenced by the much lower system power draw) even with the CPU fan going at full blast. At both 60% and 80%, the GPU has to spin at 60% in order to achieve our GPU temperature standard resulting in higher noise levels. The 100% setting allows us to lower the CPU and GPU fan speeds by moderate amounts but the overall result is much louder as the case fans drown out everything out.


Dust filter.

The results are suspiciously poor considering it's equipped with three fans. The main issue is the construction of the dust filters. There's a fine layer of mesh that is fairly open but the plastic grill laid over it is quite thick and restrictive. Removing the filters leads to far superior performance.

System Measurements: CPU + GPU Load,
80°C Target GPU Temp (at 22°C Ambient)
Configuration
Stock
No Filters
Avg. System
Fan Speed
980 RPM
(90%)
770 RPM
(70%)
CPU Fan Speed
1500 RPM
(80%)
1050 RPM
(50%)
GPU Fan Speed*
1690 RPM
(55%)
1360 RPM
(47%)
CPU Temp
63°C
51°C
58°C
MB Temp
54°C
44°C
47°C
SSHD Temp
47°C
40°C
38°C
GPU Temp
83°C
76°C
83°C
System Power (AC)
359W
353W
356W
30 dBA
27 dBA
*set as low as possible to maintain target GPU temperature on load.
Ambient temperature: 25°C.

The results of the 90% system fan setting without the filters shows remarkable improvement. The CPU and motherboard temperatures lower by double digits, while both the SSHD and GPU receive a 7°C benefit. All the fan speeds can be lowered such that the machine produces 3 dB less noise while still achieving improved temperatures across the board. The CPU fan can be slowed down even further than 1050 RPM, but in this configuration, the GPU fan is the main noise contributor, so it doesn't really matter. Unfortunately, running the system like this would negate the entire point of having positive pressure as the fan vents would all be open allowing dust to accumulate more rapidly

Without the filters, the system can be made quieter, but the quality of the noise is actually worse. The tone produced by the stock fans during the baseline tests is more irritating at 70% than 90% speed, negating much of the benefit. If it were up to me, I would run the system fans faster than necessary just to avoid this effect.

Comparison

Case Comparison: System Measurements
(CPU + GPU Load, Results Adjusted to 80°C GPU Temp at 22°C Ambient)
Case
Fractal Define S
SilverStone KL05B-Q
NZXT S340
SilverStone PS11B-Q
SilverStone GD10
Avg. System Fan Speed
630 RPM
(2 x 80%)
840 RPM
(2* x 60%)
910 RPM
(2 x 60%)
1020 RPM
(2* x 80%)
980 RPM
(3 x 90%)
GPU Fan Speed
1120 RPM
1070 RPM
1170 RPM
1230 RPM
1690 RPM
CPU Temp
60°C
57°C
62°C
68°C
60°C
MB Temp
45°C
43°C
46°C
51°C
51°C
SSHD Temp
35°C
34°C
34°C
34°C
44°C
23 dBA
24 dBA
25 dBA
25~26 dBA
30 dBA
Apx. Volume
46 L
52 L
38 L
44 L
27 L
Street Price (USD)
$75
$70
$70
$50
$85
*one fan added.

It's probably not fair to compare the GD10 to small towers priced at the sub-US$100 level but our readers should have an idea of how much of a performance disparity to expect when using the GD10 to its full potential. A 5~6 dB difference is typical along with much higher internal temperatures. That being said, if the unfiltered result would be surprisingly competitive considering how much smaller the case is in volume.



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