SilverStone NT06-PRO CPU Cooler Review

[nextpage title=”Introduction”]

We tested the SilverStone NT06-PRO CPU cooler. It has a horizontal heatsink, six heatpipes, a 120 mm fan, and is 3.2”(82 mm) tall, which makes it a viable option for small form factor (SFF) cases.

Figure 1 shows the box of the cooler.

Figure 1: Package

Figure 2 shows the contents of the box: heatsink, fan, a small syringe of thermal compound, a manual, and installation hardware.

Figure 2: Accessories

Figure 3 displays the NT06-PRO heatsink.

Figure 3: The SilverStone NT06-PRO heatsink

This cooler is discussed in detail in the following pages.

[nextpage title=”The NT06-PRO “]

Figure 4 illustrates the front of the heatsink. You are able to see the tips of the heatpipes at the heatsink and inside the base. The fins are almost rectangular.

Figure 4: Front view

Figure 5 reveals the side of the cooler. The height from the bottom of the heatsink to the level of the base is 2.0” (52 mm).

Figure 5: Side view

Figure 6 shows a rear view of the cooler, where the curves of the heatpipes are visible.

Figure 6: Rear view

The top of the heatsink is visible in Figure 7.

Figure 7: Top view

[nextpage title=”The NT06-PRO (Cont’d)”]

Figure 8 shows the base of the cooler. It is a nickel-plated copper plaque, not polished enough for a mirror-like aspect.

Figure 8: Base

In Figure 9, you can see the 120 mm PWM fan that comes with the NT06-PRO. Its model is HA1220H12SA-Z, its nominal speed is 2,200 rpm, and airflow of 74 cfm. This fan is slim (20 mm height).

Figure 9: Fan

Figure 10 presents the NT06-PRO with the fan installed. There are four rubber pads to be glued to the corners of the fan in order to absorb vibration.

The manufacturer suggests installing the fan below the heatsinks, blowing air upwards, directly into the heatsink. In this position, there is a clearance of only 1.26” (32 mm) under the fan, so you can only install it over the memory modules if you have no modules taller than that under the fan. If the fan interferes with the memory modules, you can choose to install the fan over the heatsink (it will not be a problem if you are using a regular case, but may not be feasible if you are using a small form factor case) or to rotate the cooler in 180 degrees, letting the fan run over the motherboard voltage regulator area.

Figure 10: Fan installed

[nextpage title=”Installation”]

Figure 11 shows the backplate for use with AMD and Intel processors with the screws inserted in the holes for use with socket LGA1155.

Figure 11: Backplate with screws

After inserting the screws from the solder side, insert four plastic spacers from the component side, then place the metal bars shown in Figure 12, holding them with four thumbnuts.

Figure 12: Metal frame installed

Then, install the cooler over the CPU, holding it with two screws. In our system, we were not able to install the cooler with the fan over the memory modules, so we installed it with the fan over the voltage regulator heatsinks.

Figure 13: Cooler installed

[nextpage title=”How we tested”]

We tested the cooler with a Core i5-2500K CPU (quad-core, 3.3 GHz), which is a socket LGA1155 processor with a 95 W TDP (Thermal Design Power). In order to get higher thermal dissipation, we overclocked it to 4.0 GHz (100 MHz base clock and x40 multiplier), with 1.3 V core voltage (Vcore). This CPU was able to reach 4.8 GHz with its default core voltage, but at this setting, the processor enters thermal throttling when using mainstream coolers, reducing the clock and thus the thermal dissipation. This could interfere with the temperature readings, so we chose to maintain a moderate overclocking.

We measured noise and temperature with the CPU under full load. In order to get 100% CPU usage in all cores, we ran Prime 95 25.11 with the “In-place Large FFTs” option. (In this version, the software uses all available threads.)

We compared the tested cooler to other coolers we already tested, and to the stock cooler that comes with the Core i5-2500K CPU. Note that the results cannot be compared to measures taken on a different hardware configuration, so we retested some “old” coolers with this new methodology. This means you can find different values in older reviews than the values you will read on the next page. Every cooler was tested with the thermal compound that comes with it.

Room temperature measurements were taken with a digital thermometer. The core temperature was read with the SpeedFan program (available from the CPU thermal sensors), using an arithmetic average of the core temperature readings.

During the tests, the panels of the computer case were closed. The front and rear case fans were spinning at minimum speed in order to simulate the “normal” cooler use on a well-ventilated case. We assume that is the common setup used by a cooling enthusiast or overclocker.

The sound pressure level (SPL) was measured with a digital noise meter, with its sensor placed near the top opening of the case. This measurement is only for comparison purposes, because a precise SPL measurement needs to be made inside an acoustically insulated room with no other noise sources, which is not the case here.

Hardware Configuration

• Processor: Core i5-2500K
• Motherboard: ASUS Maximus IV Extreme-Z
• Memory: 16 GB G.Skill Sniper (DDR3-1600/PC3-12800), configured at 1,600 MHz
• Hard disk: Seagate Barracuda XT 2 TB
• Video card: MSI GeForce GT 210 1 GB
• Video resolution: 1920×1080
• Video monitor: Samsung SyncMaster P2470HN
• Power supply: Seventeam ST-550P-AM
• Case: Cooler Master HAF 922

Operating System Configuration

• Windows 7 Home Premium 64 bit SP1

Software Used

• Prime95
• SpeedFan

Error Margin

We adopted a 2°C error margin, meaning temperature differences below 2°C are considered irrelevant.

[nextpage title=”Our Tests”]

The table below presents the results of our measurements. We repeated the same test on all coolers listed below. Each measurement was taken with the CPU at full load. In the models with a fan supporting PWM, the motherboard controlled the fan speed according to core load and temperature. On coolers with an integrated fan controller, the fan was set at the full speed.

Cooler	Room Temp.	Noise	Speed	Core Temp.	Temp. Diff.
Intel stock cooler	18 °C	41 dBA	2000 rpm	97 °C	79 °C
Cooler Master Hyper TX3	18 °C	50 dBA	2850 rpm	69 ºC	51 °C
Corsair A70	23 °C	51 dBA	2000 rpm	66 ºC	43 °C
Corsair H100	26 °C	62 dBA	2000 rpm	64 ºC	38 °C
EVGA Superclock	26 °C	57 dBA	2550 rpm	67 ºC	41 °C
NZXT HAVIK 140	20 °C	46 dBA	1250 rpm	65 ºC	45 °C
Thermalright True Spirit 120	26 °C	42 dBA	1500 rpm	82 °C	56 °C
Zalman CNPS12X	26 °C	43 dBA	1200 rpm	71 °C	45 °C
Zalman CNPS9900 Max	20 °C	51 dBA	1700 rpm	62 °C	42 °C
Titan Fenrir Siberia Edition	22 °C	50 dBA	2400 rpm	65 °C	43 °C
SilenX EFZ-120HA5	18 °C	44 dBA	1500 rpm	70 °C	52 °C
Noctua NH-L12	20 °C	44 dBA	1450 rpm	70 °C	50 °C
Zalman CNPS8900 Extreme	21 °C	53 dBA	2550 rpm	71 °C	50 °C
Gamer Storm Assassin	15 °C	48 dBA	1450 rpm	58 °C	43 °C
Deepcool Gammaxx 400	15 °C	44 dBA	1500 rpm	60 °C	45 °C
Cooler Master TPC 812	23 °C	51 dBA	2350 rpm	66 °C	43 °C
Deepcool Gammaxx 300	18 °C	43 dBA	1650 rpm	74 °C	56 °C
Intel stock cooler	18 °C	41 dBA	2000 rpm	97 °C	79 °C
Xigmatek Praeton	19 °C	52 dBA	2900 rpm	83 °C	64 °C
Noctua NH-U12P SE2	18 °C	42 dBA	1300 rpm	69 °C	51 °C
Deepcool Frostwin	24 °C	46 dBA	1650 rpm	78 °C	54 °C
Thermaltake Frio Advanced	13 °C	56 dBA	2000 rpm	62 °C	49 °C
Xigmatek Dark Knight Night Hawk Edition	9 °C	48 dBA	2100 rpm	53 °C	44 °C
Thermaltake Frio Extreme	21 °C	53 dBA	1750 rpm	59 °C	38 °C
Noctua NH-U9B SE2	12 °C	44 dBA	1700 rpm	64 °C	52 °C
Thermaltake WATER2.0 Pro	15 °C	54 dBA	2000 rpm	52 °C	37 °C
Deepcool Fiend Shark	18 °C	45 dBA	1500 rpm	74 °C	56 °C
Arctic Freezer i30	13 °C	42 dBA	1350 rpm	63 °C	50 °C
Spire TME III	8 °C	46 dBA	1700 rpm	70 °C	62 °C
Thermaltake WATER2.0 Performer	11 °C	54 dBA	2000 rpm	49 °C	38 °C
Arctic Alpine 11 PLUS	11 °C	45 dBA	2000 rpm	82 °C	71 °C
be quiet! Dark Rock 2	10 °C	41 dBA	1300 rpm	58 °C	48 °C
Phanteks PH-TC14CS	16 °C	47 dBA	1300 rpm	58 °C	42 °C
Phanteks PH-TC14PE	16 °C	48 dBA	1300 rpm	57 °C	41 °C
SilverStone HE01 (Q)	19 °C	44 dBA	1150 rpm	63 °C	44 °C
SilverStone HE01 (P)	20 °C	57 dBA	2050 rpm	62 °C	42 °C
Thermaltake WATER2.0 Extreme (S)	17 °C	44 dBA	1250 rpm	52 °C	35 °C
Thermaltake WATER2.0 Extreme (E)	17 °C	53 dBA	1900 rpm	50 °C	33 °C
Deepcool Neptwin	11 °C	46 dBA	1500 rpm	56 °C	45 °C
SilverStone HE02	19 °C	49 dBA	2000 rpm	64 °C	45 °C
Zalman CNPS9900DF	23 °C	45 dBA	1400 rpm	68 °C	45 °C
Deepcool ICE BLADE PRO V2.0	22 °C	43 dBA	1500 rpm	67 °C	45 °C
Phanteks PH-TC90LS	24 °C	47 dBA	2600 rpm	95 °C	71 °C
Rosewill AIOLOS	20 °C	40 dBA	1600 rpm	94 °C	74 °C
Corsair H60	20 °C	49 dBA	2000 rpm	64 °C	44 °C
Zalman LQ310	27 °C	51 dBA	2050 rpm	65 °C	38 °C
Noctua NH-L9i	24 °C	44 dBA	2500 rpm	95 °C	71 °C
NZXT Respire T40	20 °C	45 dBA	1850 rpm	76 °C	56 °C
NZXT Respire T20	21 °C	45 dBA	1900 rpm	77 °C	56 °C
Zalman LQ315	20 °C	52 dBA	1950 rpm	57 °C	37 °C
Corsair H80i (Quiet)	19 °C	44 dBA	1100 rpm	61 °C	42 °C
Corsair H80i (Maximum)	19 °C	57 dBA	2500 rpm	55 °C	36 °C
NZXT Kraken X40 (Silent)	25 °C	44 dBA	1050 rpm	66 °C	41 °C
NZXT Kraken X40 (Extreme)	25 °C	53 dBA	1650 rpm	62 °C	37 °C
Zalman LQ320	20 °C	52 dBA	2100 rpm	57 °C	37 °C
Corsair H100i (Quiet)	22 °C	45 dBA	1150 rpm	58 °C	36 °C
Corsair H100i (Maximum)	22 °C	61 dBA	2500 rpm	54 °C	32 °C
NZXT Kraken X60 (Silent)	26 °C	46 dBA	1000 rpm	62 °C	36 °C
NZXT Kraken X60 (Extreme)	26 °C	60 dBA	1650 rpm	60 °C	34 °C
Prolimatech Genesis Black Series	25 °C	46 dBA	1150 rpm	69 °C	44 °C
Phanteks PH-TC12DX	25 °C	51 dBA	1850 rpm	74 °C	49 °C
Corsair H90	23 °C	51 dBA	1550 rpm	61 °C	38 °C
Corsair H110	27 °C	58 dBA	1500 rpm	60 °C	33 °C
Evercool Venti	23 °C	49 dBA	2250 rpm	72 °C	49 °C
Thermalright Archon SB-E X2	22 °C	45 dBA	1400 rpm	68 °C	46 °C
Scythe Kabuto II	20 °C	41 dBA	1450 rpm	67 °C	47 °C
Prolimatech Megahalems Red Series	20 °C	51 dBA	1500 rpm	63 °C	43 °C
Zalman FX100 (fanless)	18 °C	NA	NA	98 °C	80 °C
Zalman FX100 (92 mm fan)	18 °C	50 dBA	2850 rpm	69 °C	51 °C
Gelid The Black Edition	21 °C	45 dBA	1650 rpm	66 °C	45 °C
Thermalright AXP-100	22 °C	42 dBA	2400 rpm	76 °C	54 °C
SilverStone NT06-PRO	19 °C	50 dBA	2400 rpm	72 °C	53 °C

In the graph below, you can see how many degrees Celsius hotter the CPU core is than the air outside the case. The lower this difference, the better is the performance of the cooler.

In the graph below, you can see how many decibels of noise each cooler makes.

[nextpage title=”Main Specifications”]

The main specifications for the SilverStone NT06-Pro CPU cooler include:

• Application: Sockets AM2(+), AM3(+), FM1, FM2, LGA775, LGA1155, LGA1156, LGA1366, and LGA2011
• Dimensions: 5.5 x 5.5 x 3.2 inches (140 x 139 x 82 mm) (W x L x H)
• Fins: Aluminum
• Base: Nickel-plated copper
• Heat-pipes: Six 6 mm copper heatpipes
• Fans: 120 mm
• Nominal fan speed: 2,200 rpm
• Fan air flow: 73.9 cfm
• Power consumption: 3.96 W
• Nominal noise level: Not informed
• Weight: 1.54 lb (700 g)
• More information: https://www.silverstonetek.com/
• Average price in the U.S.*: USD 58.00

* Researched at Newegg.com on the day we published this review.

[nextpage title=”Conclusions”]

The SilverStone NT06-PRO is a very good cooler, with flexibility as the main highlight. It performed nicely in the suggested configuration (fan under the heatsink, blowing upwards), but you can mount it with the fan over the heatsink (gaining clearance under the heatsink, but increasing its total height), or even running it with two fans for maximum performance.

The SilverStone NT06-PRO is very well made, with a robust and simple installation mechanism. Due to its flexibility, quality, and good performance, it receives the Hardware Secrets Silver Award.