Deep Cool Gammaxx S40 Reviewred454 - December 23, 2013
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Deep Cool Gammaxx S40 Testing:
Testing of the Deep Cool Gammaxx S40 will be accomplished by installing the cooler into the test system case, rather than a test bench. Most systems are built and mounted into a (relatively) sealed chassis, so this method will be used to generate the idle and load results to give a real world view as to the cooling performance one can expect, based on the test system listed below. Of course, your results may vary by several degrees due to case design and ambient air temperature. The CPU load is generated by Prime 95 version 27.9 for a period of two hours, with a cooldown period of one hour after the computer has returned to an idle state. Real Temp 3.70 is used to log the temperatures with the highest and lowest averages across the four cores of the Core i7 4770K test CPU. Ambient temperatures are kept at 24 °C during the testing to minimize the effect of temperature variations. Each cooler is tested with the manufacturer-supplied thermal compound as delivered.
- Processor: Core i7 4770K @ 3.9 GHz (100 MHz x 39)
- CPU Cooling: Deep Cool Gammaxx S40
- Motherboard: MSI Z87-GD65
- Memory: Patriot Viper 3 Series Black Mamba PC3-19200 16GB
- Video Card: NVIDIA GTX 770
- PSU: Thermaltake SMART 750W SP-750P
- Hard Drive: Corsair Force GT 240GB SSD
- Optical Drive: ASUS DRW-24B1ST
- OS: Windows 7 Ultimate 64-Bit SP1
- Chassis: Phanteks Enthoo Primo
- Temperature: 24 °C
- Cooler Master Nepton 280L
- Thermaltake BigTyp Revo
- DeepCool Neptwin
- Noctua NH-U12P SE 1366
- Noctua NH-D14
- Titan Dragonfly 4
At idle, the Gammaxx S40 was able to keep my CPU at 28 °C stock and 32 °C overclocked, which is close to the middle of the comparison field. That field contains coolers much larger and more expensive than the S40. Now when you get to the load results, the S40 stays toward the middle of the pack at 72 °C at stock speeds, but shoots up to a whopping 98 °C when overclocked. This is a little disappointing since that is not much better than stock. A few questions come to mind: Is the fan too small? Too slow? Would a standard 120mm case fan be better? And how about the heat pipe orientation - would temps be better if they were not lined up so close together?
The Gammaxx S40 is just fine for normal use, but things get a little toasty when we crank things up. The advantage that the S40 gives us in access to RAM slots may come at the expense of cooling capacity. Regarding fan noise, I expect a little noise when the cooler is running at full speed, but the S40 was quiet, even with the side of the case opened up.