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The Gamemax Sigma 520 Digital is a black tower air cooler measuring 125 x 95 x 157mm and weighing around 600g. It carries a 220W thermal design power rating, which places it above entry-level towers and puts it in range of the higher-power desktop processors that throttle under a smaller heatsink during long workloads.

The Gamemax Sigma 520 Digital is a black tower air cooler measuring 125 x 95 x 157mm and weighing around 600g. It carries a 220W thermal design power rating, which places it above entry-level towers and puts it in range of the higher-power desktop processors that throttle under a smaller heatsink during long workloads.

A digital readout in the top cover shows the current processor temperature as it changes. Having the number on the cooler means you can watch thermals during a game or an export without a monitoring utility open in the background, and it is visible through a side panel to anyone standing at the machine.

A digital readout in the top cover shows the current processor temperature as it changes. Having the number on the cooler means you can watch thermals during a game or an export without a monitoring utility open in the background, and it is visible through a side panel to anyone standing at the machine.

Six 4mm heat pipes make direct contact with the processor and carry heat up into the fin stack. They are arranged in an offset layout, shifting the tower away from the memory slots so tall modules with heat spreaders still fit underneath. That clearance is what usually decides whether a tower cooler works in a given build.
Six 4mm heat pipes make direct contact with the processor and carry heat up into the fin stack. They are arranged in an offset layout, shifting the tower away from the memory slots so tall modules with heat spreaders still fit underneath. That clearance is what usually decides whether a tower cooler works in a given build.


A 120 x 120 x 25mm fan is fitted, with seven milk white blades in a black frame on a hydro bearing. PWM control sets speed between 800 and 1800 RPM with a 10 percent tolerance, drawing 0.35A at 12 VDC. Fan life is rated at 30,000 hours, and the fan connects through a 4-pin PWM plug.

A 120 x 120 x 25mm fan is fitted, with seven milk white blades in a black frame on a hydro bearing. PWM control sets speed between 800 and 1800 RPM with a 10 percent tolerance, drawing 0.35A at 12 VDC. Fan life is rated at 30,000 hours, and the fan connects through a 4-pin PWM plug.

Maximum airflow is 74.8 CFM, with static pressure ranging from 0.46 to 2.09mmH2O across the speed range within a 10 percent tolerance. Noise reaches a maximum of 33.8dB(A). That airflow figure is high for a single 120mm fan and is what allows a tower this size to keep a 220W processor in check.
Maximum airflow is 74.8 CFM, with static pressure ranging from 0.46 to 2.09mmH2O across the speed range within a 10 percent tolerance. Noise reaches a maximum of 33.8dB(A). That airflow figure is high for a single 120mm fan and is what allows a tower this size to keep a 220W processor in check.


The Sigma 520 carries ARGB lighting that synchronises with compatible motherboard software, so the cooler runs the same colours and effects as the memory, fans and strips already installed. One profile then covers the whole machine instead of the cooler sitting in the middle of the build running its own separate pattern.

The Sigma 520 carries ARGB lighting that synchronises with compatible motherboard software, so the cooler runs the same colours and effects as the memory, fans and strips already installed. One profile then covers the whole machine instead of the cooler sitting in the middle of the build running its own separate pattern.

The fan clips on and off without tools. That is worth having every time the cooler needs dusting, because clearing a tower heatsink means removing the fan and refitting it, and doing that with clips in a cramped case takes a fraction of the time screws would. Swapping in a different fan later is equally quick.
The fan clips on and off without tools. That is worth having every time the cooler needs dusting, because clearing a tower heatsink means removing the fan and refitting it, and doing that with clips in a cramped case takes a fraction of the time screws would. Swapping in a different fan later is equally quick.


Bracket support covers Intel LGA1700, 1366, 1200 and 115X, plus AMD AM5 and AM4. Between them those sockets take in current desktop platforms from both manufacturers along with several earlier generations, so the cooler can be carried over to a new board rather than retired alongside the machine it started in.

Bracket support covers Intel LGA1700, 1366, 1200 and 115X, plus AMD AM5 and AM4. Between them those sockets take in current desktop platforms from both manufacturers along with several earlier generations, so the cooler can be carried over to a new board rather than retired alongside the machine it started in.
Everything you need to know about this product
It carries a 220W thermal design power rating.
It measures 125 x 95 x 157mm and weighs approximately 600g.
The top cover shows real-time CPU temperature directly on the cooler.
It uses six 4mm heat pipes in a direct touch arrangement with an offset layout.
The offset heat pipe design shifts the tower clear of the memory slots to improve clearance.
A 120 x 120 x 25mm fan with seven milk white blades on a hydro bearing.
It runs from 800 to 1800 RPM under PWM control with a 10 percent tolerance.
Maximum airflow is 74.8 CFM with static pressure between 0.46 and 2.09mmH2O.
The fan reaches a maximum of 33.8dB(A) at full speed.
The fan connects through a standard 4-pin PWM header on the motherboard.
Yes, the fan mounts without tools, which also makes cleaning and swapping it faster.
It fits Intel LGA1700, 1366, 1200 and 115X, along with AMD AM5 and AM4.
The hydro bearing fan carries a rated life of 30,000 hours.
AI-Generated Content: These FAQs are generated by an automated AI system and may contain inaccuracies or omissions. Evetech makes no warranties, express or implied, regarding their completeness or reliability. For definitive information, please refer to the manufacturer's official specifications.








Please Note: Product images are for illustrative purposes only and may differ from the actual product.
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