GlacialTech Siberia CPU Cooler Review
By Rafael Coelho on April 26, 2011


Hardware Secrets Bronze Award

We just tested the GlacialTech's Siberia CPU cooler, which has a horizontal heatsink, six heatpipes, one 140 mm fan over the heatsink, and a 92 mm fan under it. Check it out!

The Siberia box is large, with a frontal transparent window affording you a look at the cooler.

GlacialTech Siberia
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Figure 1: Package

Figure 2 shows what is inside the package: the cooler itself, thermal grease, manual, and installation hardware.

GlacialTech Siberia
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Figure 2: Accessories

In Figure 3, you can see the GlacialTech Siberia.

GlacialTech Siberia
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Figure 3: The GlacialTech Siberia

This cooler is discussed in detail in the following pages.

The GlacialTech Siberia

In Figure 4, you have a front view of the cooler. Here you can see the two fans that come with the cooler. Note also the small heatsink at the base.

GlacialTech Siberia
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Figure 4: Front view

Figure 5 shows the side of the cooler. The heatpipes are all at the same side, and the lower fan (a 92 mm one) does not touch the small heatsink over the base.

GlacialTech Siberia
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Figure 5: Side view

Figure 6 reveals the rear side of the cooler, where the six heatpipes are visible.

GlacialTech Siberia
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Figure 6: Rear view

In Figure 7 you see the top of the cooler, which reveals the upper 140 mm fan.

GlacialTech Siberia
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Figure 7: Top view

The GlacialTech Siberia (Cont’d)

Figure 8 shows the base of the cooler, which is not polished enough to have a mirror-like look.

GlacialTech Siberia
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Figure 8: Base

In Figure 9 you see the fans. They are connected to the same cable, and there is no way to disconnect them from each other. The bigger fan has red, green, and blue LEDs. The connector is that of a four-pin.

GlacialTech Siberia
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Figure 9: Fans

Figure 10 shows the heatsink without the fans. They are easy to remove, thanks to the metal wire holders.

GlacialTech Siberia
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Figure 10: Heatsink


Figure 11 shows the base of the Siberia with the metal clips needed to install the cooler on Intel processors. After screwing the clips, put the backplate on the solder side of the motherboard and attach four screws (with springs) from the component side.

GlacialTech Siberia
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Figure 11: Clips

In Figure 12 you see the cooler installed on our motherboard. Because of the shape of the cooler, there is no way to fasten the four screws without removing the motherboard from the case. Actually, the GlacialTech Siberia was probably the trickiest cooler to install from all the models we tested using this methodology. It could be far easier if the clips on the cooler base had the screws attached to it, so you just needed to screw the nuts from the solder side.

GlacialTech Siberia
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Figure 12: Installed on our motherboard

Figure 13 presents the GlacialTech Siberia installed in our case.

GlacialTech Siberia
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Figure 13: Installed in our system

How We Tested

We tested the cooler with a Core i7-860 CPU (quad-core, 2.8 GHz), which is a socket LGA1156 processor with a 95 W TDP (Thermal Design Power). In order to get higher thermal dissipation, we overclocked it to 3.3 GHz (150 MHz base clock and 22x multiplier), keeping the standard core voltage (Vcore), which was the maximum stable overclock we could make with the stock cooler. Keep in mind that we could have raised the CPU clock more, but to include the stock cooler in our comparison, we needed to use this moderate overclock.

We measured noise and temperature with the CPU idle and under full load. In order to get 100% CPU usage in all threads, 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 the Intel stock cooler with a copper base (included with the CPU), as well as with other coolers. Note that in the past, we tested coolers with a socket LGA775 CPU, and 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 in the next page. Every cooler was tested with the thermal compound that accompanies 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 left panel of the case was open.

The sound pressure level (SPL) was measured with a digital noise meter, with its sensor placed 4" (10 cm) from the fan. We turned off the case and video board cooler fans so they wouldn't interfere with the results. 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 isn't the case here.

Hardware Configuration

Operating System Configuration

Software Used

Error Margin

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

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 idle and 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 minimum speed on the idle test and at full speed on the full load test.


Idle Processor

Processor at Full Load

CoolerRoom Temp.NoiseSpeedCore Temp.NoiseSpeedCore Temp.
Intel stock (socket LGA1156)14 °C44 dBA1700 rpm46 °C54 dBA2500 rpm90 °C
Cooler Master Hyper TX3 G114 °C47 dBA2050 rpm33 °C56 dBA2900 rpm62 °C
Zalman CNPS10X Extreme14 °C45 dBA1400 rpm27 °C53 dBA1950 rpm51 °C
Thermaltake Silent 115614 °C44 dBA1200 rpm38 °C49 dBA1750 rpm69 °C
Noctua NH-D1414 °C49 dBA1250 rpm27 °C49 dBA 1250 rpm53 °C
Zalman CNPS10X Performa14 °C46 dBA1500 rpm28 °C52 dBA1950 rpm54 °C
Prolimatech Megahalems14 °C40 dBA750 rpm27 °C60 dBA2550 rpm50 °C
Thermaltake Frio14 °C46 dBA1450 rpm27 °C60 dBA2500 rpm50 °C
Prolimatech Samuel 1714 °C40 dBA750 rpm40 °C60 dBA2550 rpm63 °C
Zalman CNPS8000A18 °C43 dBA1400 rpm39 °C54 dBA2500 rpm70 °C
Spire TherMax Eclipse II14 °C55 dBA2200 rpm28 °C55 dBA2200 rpm53 °C
Scythe Ninja317 °C39 dBA700 rpm32 °C55 dBA1800 rpm57 °C
Corsair A5018 °C52 dBA1900 rpm33 °C52 dBA1900 rpm60 °C
Thermaltake Jing18 °C44 dBA850 rpm34 °C49 dBA1300 rpm60 °C
GlacialTech Alaska18 °C43 dBA1150 rpm36 °C51 dBA1600 rpm60 °C
Deepcool Gamer Storm18 °C43 dBA1100 rpm35 °C48 dBA1600 rpm62 °C
Corsair A7026 °C56 dBA1900 rpm40 °C56 dBA1900 rpm65 °C
Deepcool Ice Blade Pro23 °C45 dBA1200 rpm38 °C52 dBA1500 rpm64 °C
AC Freezer 7 Pro Rev. 223 °C47 dBA1750 rpm44 °C51 dBA2100 rpm77 °C
Corsair H7027 °C60 dBA1900 rpm37 °C60 dBA1900 rpm61 °C
Zalman CNPS9900 Max27 °C55 dBA1600 rpm38 °C58 dBA1750 rpm63 °C
Arctic Cooling Freezer 11 LP25 °C45 dBA1700 rpm51 °C49 dBA1950 rpm91 °C
CoolIT Vantage26 °C60 dBA2500 rpm37 °C60 dBA2500 rpm62 °C
Deepcool Ice Matrix 60025 °C46 dBA1100 rpm41 °C53 dBA1300 rpm69 °C
Titan Hati26 °C46 dBA1500 rpm40 °C57 dBA2450 rpm68 °C
Arctic Cooling Freezer 1327 °C49 dBA1950 rpm41 °C53 dBA2300 rpm70 °C
Noctua NH-C1426 °C52 dBA1300 rpm37 °C52 dBA1300 rpm61 °C
Intel XTS100H26 °C49 dBA1200 rpm42 °C64 dBA2600 rpm68 °C
Zalman CNPS5X SZ23 °C52 dBA2250 rpm38 °C57 dBA2950 rpm69 °C
Thermaltake SlimX321 °C50 dBA2700 rpm46 °C50 dBA2750 rpm99 °C
Cooler Master Hyper 10121 °C50 dBA2600 rpm38 °C57 dBA3300 rpm71 °C
Antec Kühler H2O 62019 °C52 dBA1400 rpm34 °C55 dBA1400 rpm58 °C
Arctic Cooling Freezer 13 Pro20 °C46 dBA1100 rpm36 °C49 dBA1300 rpm62 °C
GlacialTech Siberia22 °C49 dBA1400 rpm34 °C49 dBA1400 rpm61 °C

In the graph below, at full load 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.

 GlacialTech Siberia

Main Specifications

The main specifications for the GlacialTech Siberia CPU cooler include:


The GlacialTech Siberia is an eye-catching CPU cooler. It has excellent performance, too. The unique design, with a 140 mm top fan and a 92 mm bottom fan, seems to work very well. Furthermore, it helps cool the parts around the CPU, like the motherboard chipset, voltage regulator transistors, and memory modules.

The great drawback we found in this cooler is its mounting system. It seems as if the engineers who designed this system never had to actually mount it. There were two simple solutions, one opening holes on the heatsink in order to pass a screwdriver through it, and another allowing the user to screw it from the solder side of the motherboard. The way it is, this cooler has the most laborious mounting system we've seen so far.

The GlacialTech Siberia is a good cooler, with excellent performance and nice looks, receiving the Hardware Secrets Bronze Award just because of its awful mounting mechanism.

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