DeepCool GAMMAXX S40 CPU Cooler Review

Posted by on Tuesday, May 28, 2013 - 1:23am

The GAMMAXX S40 isn’t DeepCool’s biggest and meanest cooler but it is geared to be one of their better sellers. Reason being is that it is categorized as a budget cooler aimed for users looking for a decent upgrade from the stock OEM cooler that comes with AMD and Intel processors. We will be taking a tour of the DeepCool GAMMAXX S40 and see if it is worth your hard earned money.

DeepCool GAMMAXX S40 CPU Cooler Review


Today, we will be reviewing a product from a company we have yet to do business with. DeepCool maybe new to other sites but they have been around for a decent amount of time. Over that time, they have produced some pretty good products. DeelCool products range from CPU coolers to fan controllers and everything in between. We will be taking a look at one of their newest CPU coolers.

The GAMMAXX S40 isn’t DeepCool’s biggest and meanest cooler but it is geared to be one of their better sellers. Reason being is that it is categorized as a budget cooler aimed for users looking for a decent upgrade from the stock OEM cooler that comes with AMD and Intel processors. We will be taking a tour of the DeepCool GAMMAXX S40 and see if it is worth your hard earned money.

Deep Cool’s take on the GAMMAXX S40

The bowl shaped 120mm fan successfully help GAMMAXX 300 achieve the superb cooling performance, and it will do the same on GAMMAXX S40. With PWM function, it runs at between 900 and 1600RPM, which offers big airflow to cool the heatsink at very low noise level. The unique D.A.C. design on the fan frame helps to cool the surrounding components such as the MOSFET, thus the overall platform temperature drops by over 10%.
The unique holes-on-fins design makes full use of the heat dissipation surface and push hot air out the heatsink more quickly. In addition, these fins improve vertical air flow during passive cooling. Moreover, the fins are designed as shark fin for the beauty of the product.

The heatsink body is fully nickel plated to prevent from oxidation and increase durability of the product. And the four pieces heatpipe directly touch the processor surface, which can conduct the heat quickly to the fins.
With multiple clips, this cooler can support all mainstream processors including Intel LGA2011 and AMD FM2/FM1.


Overall Dimension

Fan Dimension

Net Weight

Bearing Type
Hydro Bearing

Rated Voltage

Operating Voltage

Started Voltage

Rated Current

Power Input

Fan Speed

Max. Air Flow



  • Equipped with multiple clips to support Intel 2011/1366/1156/1155/775 and AMD FM2/FM1/AM3+/AM3/AM2+/AM2.
  • Ф120x25mm fan with PWM function offers a perfect balance between airflow and noise.
  • Double Airflow Channel (D.A.C.) technology allows more cold air to cool the surrounding components, such as MOS.
  • 4 pieces of Ф6mm heat pipes, Core Touch Technology (CTT) gives perfect contact with the CPU surface.
  • The whole heatsink set is nickel plated for appealing appearance and also for gaming spirits.
  • De-vibration design absorbs operating noise maximally.

Closer Look

The DeepCool GAMMAXX S40 has a relatively smaller size when it comes to aftermarket CPU coolers and it weighs a mere 610 grams. But for today’s standards, this is considered small. Standing 5.63” tall, it is shorter as well as lighter than the Thermaltake NiC F4 we recently tested.

Looking at the cooler as a whole, you will see a few features that are unique to the cooler and we will tackle each of them as we go along. The first thing we noticed is that the entire cooler is layered in nickel for appearance purposes.

The GAMMAXX S40 to begin with is a simple tower design meaning the array of aluminum fins stand upright with the fan mounted to the left or right of the stack of fins. In the case of the GAMMAXX S40, a series of twenty holes are implanted into each fin to aid with heat dissipation. DeepCool kept the branding simple with just the company logo stamped into the topmost fin.

A set of four 6mm heat pipes support the fin structure. The pipes are arranged in a way that allows heat to travel through the fins at different points which promotes fast heat dissipation.

The GAMMAXX S40 comes with thermal compound already applied to the base of the cooler. But we cleaned it up for the purpose of this review. Like many other coolers, the S40’s base is comprised of a separate aluminum and the heat pipes. Yes, the pipes come in direct contact with the processor. DeepCool calls this Core Touch Technology or CTT.

The PWM-controlled fan is different as well. The frame has a tunnel shape that forces air across the surface of the fins. According to DeepCool, the fan specifications are 900 to 1600 RPM, 17.8 to 21 dBA pushing a maximum of 55 CFM of air. The corners of the fan have rubber plates attached to it for better handling of vibration made by the spinning fan.

Like any good cooler, the DeepCool GAMMAXX S40 can be mounted onto any current CPU socket including AMD series from AM2 to FM2 and Intel sockets from 775 to 2011.

Mounting Images
Mounting the DeepCool GAMMAXX S40 is one of the easiest you would ever experience. There aren't a lot of tiny pieces that comes bundled with the cooler, just four screws and three sets of mounting plates. No motherboard plates are needed as the cooler uses the stock motherboard holes or brackets. And because of its light weight, this way of mounting is a big concern.

Testing Methodology

For our testing we will be using the following procedures and parameters to acquire the necessary data:

  • Thermal compound used is Arctic Silver 5
  • Idle temperatures are recorded after the system has been allowed to idle for thirty minutes from the point Windows has finished loading.
  • Load temperatures are recorded by running OCCT for twenty minutes on all available threads.
  • Real Temp is used for the recording of all temperature sensor reading.
  • PWM function is disabled via BIOS to allow the fans to run at full speed.
  • CPU model and overclock speed used for testing are outlined below in "Test Hardware".
  • Each cooler is first tested with one fan supplied from the manufacturer.
  • Each cooler is then tested again with a second fan attached if provided by the manufacturer.

Test Hardware:

1. ASUS X79 Deluxe Motherboard
2. Intel Core i7 3930K Processor
3. Kingston HyperX 1866 DDR3 16GB
4. Kingston V+ 200 120GB Solid State Drive
5. ASUS BC12B1LT BD-Rom Drive
6. Thermaltake Frio Extreme CPU Cooler
7. MicrocoolBanchetto 101 Open Air Test Bench
8. Silverstone Strider Gold Evolution 850W Power Supply
9. ASUS Nvidia GTX 560Ti 448 Graphic Card




We have seen from the tests that the DeepCool GAMMAXX S40 is not going to be a challenger to the bigger coolers on the market nor it is meant to. The GAMMAXX S40 is more of the ideal cooler to replace the stock unit that came with your processor. If you are not trying to push your CPU to the limits, this cooler would be your best bet with its seemingly inaudible operation along with a better performance compared to the stock cooling.

As for a system builder, you will also like the fact that the GAMMAXX S40 is very quick to mount. You do not have to deal with a ton of tiny pieces as the cooler comes with minimum accessories that use the motherboard's stock holes and brackets for mounting. Even the fan was easy to mount using the wire hangers that comes with it.

The overall appearance of the cooler is good as well. There isn't any flashy look here, just a simple single tower cooler with functional features. The fan with its blue and black theme would look nice with some of the midrange ASUS motherboards with the same color scheme.

At $35-$40, you are getting a pretty good cooler for the money.

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