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MasterLiquid ML240R CPU Liquid Cooler intel amd Support


This is the cooler I chose for my first custom PC build. I installed it in the BitFenix Enso case. My original intent was to install it in the top of the case, but it does not have the space with the ASUS Z370-E motherboard, so I had to install it front-facing. MasterLiquid ML240R

This also was a challenge. The front of the case has three 120mm mounts with filters built into the case in front of the lower two. Yet the mounts for this cooler would not line up with the lower two mounts and had to be installed in the top two, which is detrimental to its performance – it’s not pulling nearly as much air into the case.

This may be the fault of the case itself, but I also am not afforded space to install a third fan under the radiator. I’m not deducting points for any of this – as I said, it may be the fault of the case. MasterLiquid ML240R

Also, out of the box, a small number of the radiator fans were dented. The effect on performance is beyond negligible, but still disappointing.

Installation Process

The hoses are very rigid and made it a bit trickier to install, trying to determine what angle I should install the pump at so it could reach the front of the case. This is indicative of it being intended for top-case mounting. MasterLiquid ML240R

When I first turned on the PC, I had to hold the tubing to feel the water flow to ensure it was working. It was beautifully quiet. About three days into use, I heard a horrendous leaking noise from the cooler. I panicked and checked thoroughly inside the case, but it hadn’t leaked. I started hearing the noise every couple hours and panicked every time, but it never leaked.

Then I started hearing a rattling noise coming from it. The noise was intermittent, but started growing louder and more frequent with time.


Doing some research, I discovered that means there’s some air in the loop. This is a sealed loop, so it is not intended to be opened or modified by the consumer. Since I’d been waiting for other PC parts, I was already past the return date for this product, so I’ve continued using it.

In discussing my computer with a more advanced PC builder, he recognized that this cooler is more ideally mounted in the top of the case – specifically to keep the radiator horizontal. For standard ATX cases, a lot of times this is standard practice with a 240mm radiator, but the AIO coolers will often not mention this detail. This is, in his opinion, quite likely the reason this cooler is so noisy for me.

I’ve not bothered measuring the temperature of my CPU with this cooler since it’s simply inadequate for my build and not in an ideal spot in my case for airflow.


If you get this cooler, ensure it will fit in the top of your case rather than attempting to mount it vertically. Also, it doesn’t say it, but it does come with a little bit of thermal paste.

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MasterLiquid ML240R
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