A4-SFX with Haswell-E
This test should demonstrate, what is possible with the A4 SFX. Therefore I did a build with an Haswell-E . It should be said, that some things have to be considered, to use Intel's Haswell-E inside the case.
This is required:
■ Motherboard: Asrock X99E-ITX
■ Heatsink: Dynatron T318
■ FANs: one of the following...
■Noctua A9x14
■Thermalrigth AXP100 FAN
■Deepcool GS 120
■Yate Loon D12SL-12C 120mm
■SilverStone FN123
Cooler Compatibility:
The Asrock X99e-ITX is the only motherboard in ITX format for the socket 2011-3. Unfortunately, it use not the square base ILM like for any other desktop boards. The X99E-ITX use the narrow ILM socket for server boards. Therefore normal 2011-3 cooler do not fit. The board includes a tower heatsink, but this one is too high for the A4-SFX.
Therefore we use the Dynatron T318 for this test. This is a 1U coolers, with an height of 27mm, made out of copper, with an Vapor Chamber on the ground and a cooling performance up to an TPD of 140W. Due to the low height of the heatsink, all fans up to 20mm could be mounted. The fan is fastened with cable ties on the heatsink, because it does not have a clamp or screw mount.
Pictures of the build:
Cooling test:
Depending on the quality of the CPU you will reach different temperatures. The processor I bought was well priced, because it one with a bad overclocking ability. I test the CPU in Prime95 8k test and Intel XTU cpu stability test.
The Prime95 8K test generates temperatures that are 10-20 ° C higher as in normal usecase like games and rendering software. The XTU test shows how heavy Prime95 is, because the temperature values are around 10 ° C lower.
A first test in Prime95 with standard voltage, inside the case and the Thermalright cooler result in 78 ° C, so I test also with an undervolted CPU. (-0.09 V - good CPUs can reach -0,14V and more). According to Intel, the 5820K has been approved to 105 ° C, therefore the 78 ° C would not be critical, but I'm trying to find the optimum.
It should be also noted, that the room temperature was 25 °C . This is 3-4 ° C higher than in the old test.
Results:
Someone would think that the 120mm fan of DeepCool would be the best, but much air passes by the heat sink and the air pressure is weaker than the other test candidates. Even if I covered the side of the fan, which is above the heat sink (see pictures), brought no real improvements.
Final words:
The test was able to demonstrate that it is possible to use a Haswell-E processor in the A4 SFX. In addition to the high cost of the motherboard and the CPU you have to do some points by yourself to make it possible. Somebody that will not run Prime95 or has no problems with temperatures around 78°C, can operate the processor with default voltage in A4 SFX. The optimum of this build would be an usecade with an external water cooling, e.g. with an 240 radiator. So you will be able to do overclocking around 6x4Ghz.
Thank you for reading