SilverStone Temjin TJ04-E Evolution Case

Cases|Damping
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Test Results: Radeon HD 4870 System

System Measurements (HD 4870)
System State
Idle
CPU + GPU Load
System Fans
7V
9V
9V (top fan changed to exhaust)
CPU Temp
32°C
48°C
47°C
49°C
SB Temp
46°C
55°C
57°C
55°C
HD Temp
29°C
30°C
29°C
29°C
GPU Temp
75°C
87°C
85°C
84°C
GPU Fan
860 RPM
1950 RPM
1850 RPM
1810 RPM
System Power (AC)
117W
315W
315W
315W
SPL@1m
22~23 dBA
29 dBA
29 dBA
28~29 dBA
CPU fan set to 100% speed.
Ambient temperature: 22°C.

With the stock case fans running at 7V, our HD 4870 test system idled with measured noise level of 22~23 dBA@1m, slightly higher than we typically see with this configuration. On load, the internals heated up by a reasonable amount, +16°C for the CPU, +11°C for the southbridge, while the overall noise level settled at a loud 29 dBA@1m, a good portion of which was generated by the GPU fan spinning at 1950 RPM.

Increasing the system fan speeds helped somewhat, lowering temperatures a bit and allowing the GPU fan to spin 100 RPM slower, but the overall noise level was the same. Flipping the top panel fan to blow outward was more beneficial, improving the thermal conditions of both the southbridge and GPU, though it caused the CPU to run a bit hotter.

When acting as an intake, the top fan provides the CPU heatsink with a stream of cooler air from outside, which is then evacuated by the back panel exhaust fan. This allows the CPU to run cooler but it seems to interfere with the heat radiating upward from the video card.


Our HD 4870 test system measured 28~29 dBA@1m on load using the optimal stock fan speed of 9V.


HD 4870 Configuration Comparison (Load)
Case
SilverStone Raven RV03
Antec P280
Corsair Obsidian 550D
SilverStone TJ04-E
System Fans
top, bottom @9V/low
top, rear, front @low
rear, front @9V
top, rear, front @9V
CPU Temp
39°C
45°C
44°C
49°C
SB Temp
51°C
52°C
54°C
55°C
HD Temp
36°C
28°C
32°C
29°C
GPU Temp
83°C
85°C
86°C
84°C
GPU Fan
Speed
1680 RPM
1950 RPM
1890 RPM
1810 RPM
SPL@1m
25~26 dBA
27 dBA
27 dBA
28~29 dBA
CPU fan set to 100% speed
All temperature results adjusted to 22°C ambient.

Even with the reversed top panel fan, the TJ04-E is a somewhat disappointing performer. Compared to similarly price towers, the TJ04-E has poorer CPU cooling and is bit louder. It is easily bested by the Silverstone Raven RV03, Antec P280, and the Corsair Obsidian 550D.



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