NZXT Source S340 Mid Tower

Cases|Damping
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TEST RESULTS

System Measurements: CPU + GPU Load,
80°C Target GPU Temp
Avg. System
Fan Speed
620 RPM
(40%)
910 RPM
(60%)
1000 RPM (70%)
1120 RPM (80%)
GPU Fan Speed*
1380 RPM
(47%)
1170 RPM
(43%)
1170 RPM
(43%)
1120 RPM
(42%)
CPU Temp
67°C
64°C
63°C
62°C
MB Temp
51°C
48°C
46°C
45°C
SSHD Temp
37°C
36°C
System Power (AC)
361W
360W
27 dBA
25 dBA
25~26 dBA
26~27 dBA
*set as low as possible to maintain target GPU temperature on load.
CPU fan at 60% (800 RPM).
Ambient temperature: 24°C.

For our system configuration, the stock fans running at 60% (910 RPM) produces the quietest result, 25 [email protected] with the GPU fans at 43% speed. Increasing the speed of the system fans further results in only very minor differences in CPU and motherboard temperature. At 80% speed, GPU cooling does not improve enough to allow the video card fans to slow down, while at 100%, the case fans drown everything out.

 

The noise emitted doesn't differ much from what was produced during the baseline tests. The CPU and GPU fans generate a poorer acoustics than the stock case fans, but they don't spin fast enough to change the overall sound of the machine. At the machine's sweet spot, the noise output is about as pleasant as 25 [email protected] can sound.

Comparison

Case Comparison: System Measurements
(CPU + GPU Load, 80°C GPU Temp at 22°C Ambient)
Case
Fractal Define S
SilverStone KL05B-Q
Zalman Z11 Neo
NZXT S340
Antec P100
Avg. System Fan Speed
630 RPM
(2 x 80%)
840 RPM
(2* x 60%)
960 RPM
(3 x 70%)
910 RPM
(2 x 60%)
980 RPM
(2 x 80%)
GPU Fan Speed
1120 RPM
1070 RPM
1180 RPM
1170 RPM
1530 RPM
CPU Temp
60°C
57°C
61°C
62°C
60°C
MB Temp
45°C
43°C
45°C
46°C
44°C
SSHD Temp
35°C
34°C
36°C
34°C
32°C
23 dBA
24 dBA
25 dBA
25 dBA
25~26 dBA
Street Price (USD)
$90
$70
$75
$70
$70
*one fan added.

Compared to previously tested sub-$100 cases, the S340 is a middling performer, about on par with the Zalman Z11 Neo and Antec P100. This result is disappointing as its fairly open intake airflow design is not dissimilar to that of the Define S, which leads this pack of budget competitors.

The only thing I can think of that could be responsible for this discrepancy is the limited exhaust ports. The fan grill at the back is noticeably more restrictive than most cases and there's only a single fan vent at the top. Almost all modern towers offer two fan mounts on the ceiling and this undoubtedly helps hot air escape the case more easily. This could have been enough to offset any gains from having unrestricted airflow coming in through the front panel.



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