SilverStone Heligon HE02: Monster Fanless CPU Cooler

Cooling
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TEST RESULTS

Test Results: SilverStone Heligon HE02
(Reference 140mm Fan: Noctua NF-P14)
Fan Voltage
One Fan
Two Fans
SPL@1m
Thermal Rise
SPL@1m
12V
29~30 dBA
42°C
40°C
33 dBA
9V
22 dBA
45°C
42°C
26~27 dBA
8V
19 dBA
46°C
43°C
23 dBA
7V
15~16 dBA
48°C
44°C
19 dBA
6V
12~13 dBA
50°C
46°C
15 dBA

As a traditional heatsink/fan, the HE02 delivers rather poor performance in relation to its size. With one of our 140 mm reference fans it produced a CPU thermal rise of 42°C~50°C. In comparison, elite coolers easily produce a result of 40°C or less with only moderate fan speeds. Adding a second fan garner predictable improvements of 2~3°C at higher fan speeds and 4°C at low speeds. Our sample emitted an intermittent clanging sound with one fan and the problem was more pronounced with two. It was steady enough to actually affect the dual fan noise measurements, making them slightly higher than usual.

The noise generated caused a prominent tonal peak with a frequency of approximately 950 Hz, a significant departure from the smooth, broadband profile we typically see with the Noctua NF-P14's. This won't be an issue for users who use the HE02 as it was intended, as a fanless heatsink.

After testing we took a look at the thermal compound left behind by the HE02. The branch-like pattern is indicative of suboptimal contact between the heatsink base and CPU heatspreader. Elite coolers leave behind a very faint smudge of TIM. The physical design of the HE02 exacerbates this issue; due to its odd shape, the distance between the center of the body of the fans is very large, diminishing their ability to exhaust the radiating heat.

Heatsink Comparison Tables

CPU Coolers (ref. 140mm fan): °C Rise Comparison
Heatsink
Fan voltage / SPL @1m*
9V
7V
6V
18~22 dBA
13~16 dBA
11~13 dBA
Thermalright Archon SB-E
37
40
42
Prolimatech Armageddon
39
42
45
Thermalright HR-02 Macho
39
43
45
NZXT Havik 140
40
43
47
Noctua NH-C14
(top mounted)
40
44
48
Noctua NH-C14
40
44
49
Thermalright Silver Arrow
39
45
49
Phanteks PH-TC14PE
42
45
48
SilverStone Heligon HE02
45
48
50
be quiet! Dark Rock 2
49
51
53
*Note: there are minor differences in measured SPL due to the variety of fan orientations and mounting methods offered by the compared coolers.

With one fan, the HE02 placed a few degrees behind the Phanteks PH-TC14PE, a dual tower heatsink which isn't really optimized for single fan operation.

Dual Fan CPU Coolers (ref. 140mm fans): CPU °C Rise Comparison
Heatsink
Fan Voltage / SPL*
8V
7V
6V
18~20 dBA
15~17 dBA
12~14 dBA
Prolimatech Genesis
36
37
39
Thermalright HR-02 Macho
36
37
40
Noctua NH-C14
37
39
41
Thermalright Silver Arrow
37
39
41
Noctua NH-D14
38
40
42
Phanteks PH-TC14PE
39
41
43
NZXT Havik 140
39
40
43
SilverStone Heligon HE02
43
44
46
*Note: there are minor differences in measured SPL due to the variety of fan orientations and mounting methods offered by the compared coolers.

With two fans, it was again, a step or two behind the more dominant dual fan heatsinks.



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