Raidmax Viper: A Modern Budget Tower

Cases|Damping
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Test Results: Radeon HD 3300 IGP

System Measurements
System State
Idle
CPU + GPU Load
System Fan Speeds
7V
9V
CPU Fan Speed
9V
12V
CPU Temp
29°C
52°C
49°C
48°C
SB Temp
34°C
39°C
37°C
36°C
HD Temp
32°C
32°C
32°C
31°C
SPL@1m
20 dBA
20 dBA
21 dBA
23 dBA
Ambient temperature: 22°C.

Our IGP test system was reasonably quiet at idle, measuring 20 dBA@1m with the CPU fan at 9V and the system fan at 7V. On load, the CPU and Southbridge temperatures rose by 23°C and 4°C respectively while the hard drive remained at a cool 32°C; There was no difference in noise level (the power supply fan probably ramped up but was likely drowned out by the rest of the components). Speeding up the CPU fan to 12V proved to be more effective than ramping up the system fans to 9V, cooling down the processor and chipset by 2~3°C and with less additional noise.


Our HD 3300 IGP test system measured 21 dBA@1m on load with the stock fans at 7V and CPU fan at 12V.

With the stock fans being quite smooth the resulting system noise was low at 21 dBA@1m, however we did detect a noticeable low pitched hum produced by the hard drive. The sound actually showed up in the spectrum analysis as a tonal peak at ~120 Hz which corresponds to the 7200 RPM speed of the hard drive. Typically when we encounter hard drive vibration issues with cases it's a rhythmic strumming due to loose hard drive cages rattling the side panels. In this case it was a more constant but subtle effect that couldn't be alleviated by bracing the cage or side panels.

IGP Configuration Comparison (Load)
Case
NZXT H2
Antec Solo II
CM Silencio 550
Raidmax Viper
System Fans
rear, fronts @low
rear @low
rear, front @12V
rear, front @7V
CPU Temp
51°C
47°C
51°C
49°C
SB Temp
38°C
38°C
41°C
37°C
HD Temp
37°C
35°C
31°C
32°C
SPL@1m
19 dBA
19~20 dBA
19~20 dBA
21 dBA
CPU fan set to 12V.
Ambient temperature: 22°C.

Competing against previously tested "quiet" cases, the Viper compares unfavorably. In our sweet spot fan configuration, thermally the Viper was in-between the Solo II and Silencio 550, but had a noise level 1~2 dB higher.



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