The Alphacool Eisbaer 240 CPU AIO Liquid Cooler Review
by E. Fylladitakis on August 1, 2016 9:00 AM EST- Posted in
- Cases/Cooling/PSUs
- AIO
- Water Cooling
- Cooler
- Alphacool
Testing Results, Low Fan Speed (7 Volts)
The quiet fans of the Eisbaer 240 have their speed greatly reduced with an input voltage of 7 Volts, down to just 810 RPM. These fans can hardly generate any pressure at such a low speed so, naturally, the thermal performance of the Eisbaer 240 is now reduced significantly. With the average thermal performance reduced down to 0.106 °C/W, the Eisbaer 240 is now outperformed by every dual 120 mm AIO cooler that we have tested to this date.
| Core Temperature, Constant Thermal Load (Low Fan Speed) |
Nevertheless, the average thermal resistance of 0.106 °C/W is not actually bad considering that the Eisbaer 240 is virtually noiseless under these operating conditions. Our instruments recorded just 32.6 dB(A) from a distance of one meter, only 2.2 dB(A) higher than our floor noise level and a figure that it is not easily discernible by human ears inside a normal room. It is possible to discern low humming noises only from a distance of a few centimeters away from the fans and/or the pump.
Facebook
Twitter
RSS
69 Comments
View All Comments
MobiusPizza - Monday, August 1, 2016 - link
The author says this cooler has best noise/thermal performance ratio, but looking at the graphs the CoolerMaster H110 seems to have both lower noise level and lower thermal resistance?retrospooty - Monday, August 1, 2016 - link
Yeah, I am really not getting the need for water cooling these days. Today's Core i5/i7 CPU run extremely cool... Even if you are overclocking, there are little to no benefits of using water. It adds complexity with no benefit. I have a Core i5 Skylake with a BeQuiet shadow rock 2 cooler, and I dont even plug in the fan at all. I can run prime - 100% CPU utilization for hours and hours with no fan at all and it doesn't even get warm, not even a little... and I live in Arizona and its summer. There just isnt a need for water anymore, even if you are overclocking the hell out of it.nightbringer57 - Monday, August 1, 2016 - link
Think about people still rocking a good old FX8350 like me ;)And AIO watercooling still happens to be competitive in high perf / small cases (typically mini ITX) setups, where clearance around the CPU is often very limited (typically, the PSU is in the way and forbids anything but very low-profile coolers), but can fit 1 or 2 12cm fans.
retrospooty - Monday, August 1, 2016 - link
Agreed, if you have an AMD CPU, you can benefit from water cooling. Some high end video cards as well... but AMD CPU's and high end video cards get hot as hell. My comment was on Intel CPU's. I would have a hard time recommending anyone buy an AMD CPU these days, regardless of the cooling used. Hopefully the upcoming Zen processor changes that. It would be great to go AMD again if they can be competitive.nightbringer57 - Monday, August 1, 2016 - link
edit: and Intel power consumption climbs up if you get into the more high-end platforms (like the X79/X99 platforms). Especially on tinier mainboards (think: mini ITX X99 ones) where you don't have standard cooler mounting holes but the special I-can't-remember-the-name ones. In those cases, big coolers don't fit. But a waterblock happily does.retrospooty - Monday, August 1, 2016 - link
I dont know... My core i5 6600k cooled as described above is a Mini itx case. Even if it were a smaller case, with no room for a huge tall cooler, there are options that work great.nightbringer57 - Monday, August 1, 2016 - link
It depends on your case.And as explained, your i5 is not realy an "enthusiast" CPU, even if it's a great CPU in itself.
And the options that work great in more confined cases... Do not work quite as great as your typical AIO watercooling system, even if those have difficulties getting significantly better results than average-to-high-end aircooling systems.
It's a niche, yes. But I wouldn't say this niche doesn't exist.
retrospooty - Monday, August 1, 2016 - link
Agreed, in some cases water would be better, AIO cases is a good example... But if you buy an AIO with water cooling, it comes pre-built and you dont do anything with it... The product above would not be for that. Also, if you have an older system you want to keep and improve the old air cooler, it might be good too depending on what you have... I guess what I am getting at, is if you were putting together a new system as of today (as opposed to upgrading an older one) you would be better served to by a case and an air cooler. They have tons of options of all sizes. Let me put it another way, if were building a new system as of today and you chose parts (case and CPU) that would benefit from water cooling, you probably chose badly.nightbringer57 - Monday, August 1, 2016 - link
When I say "AIO", I mean "AIO liquid cooler" (such as in this review), not "AIO computer" ;)And no, cases that cannot fit a good air rad (so limit the choice to either low profile rads or AIO liquid cooler) simply allow you to have a more compact PC, so they are not a bad choice, they answer different needs.
retrospooty - Monday, August 1, 2016 - link
Got it... I am paying attention LOL ;) I do see your point, I just dont think alot of people have that need. Like I said, if today (and that today part is a key thing here) were building a system, I cant see picking any case and CPU that would require something like the product above. If you are into massive overclocking, a tiny mini ITX case that cant fit a normal size air cooler probably isnt the best choice. There are plenty of mini ITX cases that can fit air coolers of any size and need. If you are overclocking and need something really small that cant fit a full size air cooler, OK... But if that is the case someone chose, where would they put the radiator? I know there are answers to that question and ways to do it, but extreme niche is what I am hearing.