Alphacool Eisberg 240 Review
Alphacool Eisberg 240 Review
Couple weeks ago Alphacool released its updated Alphacool Eisberg 240 “expandable” liquid cooler and we are going to have a look if it’s providing the performance that they claim to. Alphacool is well known on the market for their many years of cooling experience providing big portfolio of liquid cooling components.
First thing we noticed after unboxing was the very flexible tubing which is protected with anti-kinking spring over the entire length of tubing. As we use to say “it’s a matter of taste” but we actually like this spring. It allows also less experienced users to install the cooler with a little bit of protection against kink.
The pump housing has a side window where you can see moving fluid. The mounting brackets are pushed into windowed pump housing from side securing each other very well. The mounting system is surprisingly stable.
Although, we had little problem to screw the threaded bolts into small hexagonal nuts which you have to push into mainboard first (similar system as stock Intel cooler). The Idea of push-in nuts is actually smart, but the nut is turning around as we try to screw the threaded bolt into it. So some little jaw spanner for holding the nut against rotation would be just very useful especially for users with bigger hands.
CPU block is made of copper. It uses the micro channel structure with unique JetStream technology, where the water is transported by Turbo injection inside the cooler so the fluid is running through small copper fins with high pressure increasing the flow and cooling performance. We disassembled the copper plate to show you the the micro channels. It is not unusual that the copper surface will make chemical reaction with coolant so that the surface turns brown/ green, however it will not lower the cooling performance at all.
Alphacool included their new Coolmove 2 fans with 1300rpm and air flow 100,00 m³/h. They are very silent and almost not noticeable @7V.
The pump is operating with 3600rpm(@12V) which has to be connected with either 7V or 12V directly from PSU over the cable splitter adapter which is included in delivery. If you connect the pump in MB fan port it may not always start and operate properly. We have tested this and in fact 2 out of 10 times the pump didn’t even start as the pump is quite power hungry.
To ensure that the results from one review to another are comparable, the Testing Methodology will be the same throughout all reviews, otherwise we will make a note if somethings changed and keep it separately from other results.
All testing was done on test Bench-table with a room ambient temperature of 22- 23°C and if temperature changes we will add delta T °C to the results.
Before testing we run 10 minutes of Prime95 followed by 30 minutes of idling. This warm up period was done at stock CPU core frequency. For noise testing we ensure the PSU fan is isolated or using fanless PSU and we don’t use any graphics card. We mostly do fan noise test over night so we have our room as silent as possible.
We take values at IDLE and full load – where all fans run at their maximum speed.
For testing we used OCCT software and between each test we left the PC at least 15 minutes to rest so that the temperature went back to the IDLE state. Followed by overclocking with help of Easy Tune Software. Each test lasted for 15 minutes. If the temperature of any CPU core exceeded 85°C the test was automatically turned off and the value of the results we have marked as “failed”. The resulting temperature in the tables are the average temperature of all cores. The results of the tests are influenced by many factors such as: the amount of thermal paste, pressure between the processor and CPU block, humidity, thermal conductivity of thermal paste, etc.. Therefore this results should be considered as indicative only.
For this test we use it’s own thermal paste provided by manufacturer.
During our test we measured the Noise level of 40db(A) @12V dual fan setup and as silent/PWM mode @7V – 32db(A). So to say, it’s acceptable quiet at lower rpm. Although, if the pump runs on full speed @12V it’s noticeable louder providing good performance and flow rate. We like the mounting system, flexible tubing protection and the fill port on top of pump, so you have the option to change the coolant or to fill more if needed. The pump should be strong enough if you plan to add one more ( non heavy resistant) radiator or GPU block. We do not recommend to add more then one component to loop. Alphacool also plan to change the packaging in future.
Silent fans @7V
Loud pump @12V