Cooler Master MasterLiquid Pro 240 Review
Cooler Master MasterLiquid Pro 240 Review
Cooler Master’s new generation of all-in-one liquid cooler series MasterLiquid Pro 240 and MasterLiquid Pro 120 is featuring new pump design and better radiator with improved contact surface between fins and channels. Also fans have been re-designed and improved with additional RPM switch and anti-vibration pads.
MasterLiquid Pro 240 comes in black cardboard package with the product photo at the front side and main technical information and dimensions at the back side of the box. Also exploded view of the pump is shown at the back side, so users can see its main parts. Inner room of the package is well thought out and we really like to see, that the pump is extra protected with hard foam. Good job Cooler Master!
As we can see, MasterLiquid Pro 240 features FEP tubing that is used by industry for many years. Unfortunately it’s quite stiff and so bit harder to bend. To make the mounting process slightly easier, the fittings on the pump side are rotary. The advantage of this kind of tubing is in its higher resistance against kinking and reliability. We would like to see some rubber tubing instead. But that would also raise the final price as well. In fact, it’s personal taste and the look of the tubing, which we don’t like so much.
As first let’s have a look at the pump itself. The cold plate hasn’t mirror polished contact surface, but square contact area is slightly raised above the rest of the plate and is extra smooth. Blue LED illuminates the inner space under the acrylic top as well as the Cooler Master logo. Unfortunately, it only features blue color and can’t be switched off. The pump uses 4pin connector with PWM control function. It features also ceramic bearing which should help the pump to work properly for longer period of time. Cooler Master claims at least 50,000 hours (max. 175,000 hours). It’s powered with 12V and 6W. For proper function we recommend to use it with mainboards which have CPU-FAN header and CPU-OPT header. Thus, you can plug pump in CPU-OPT (optional) header and two fans in CPU-FAN header on mainboard using Y-splitter included. When it comes to noise, the pump is very silent and produces no vibrations.
The pump features new “separated” design, which means the pump/block has two chambers. Upper one for the pump and the lower one for the block itself.
The colder coolant flows into pump chamber and is further injected in the center of micro fins and flowing out on either side. This method is more effective as the coolant can get much faster out of the fins structure.
Installation process was pretty simple and instructions are nice and clear. The mounting brackets are compatible with current Intel as well as AMD sockets. We really like the way how all screws are packed, so users can see instantly which screws serves which purpose.
Radiator presents decent quality level and new fin-structure is definitively an improvement. It has nice white Cooler Master logo in the middle and features thick aluminium frame. The fins are also made of aluminium.
The unique square fin design provides better contact for heat dissipation and lowers the air flow resistance. As a result, the fan air flow produces less noise and the cooling performance does not suffer as much.
The fans have been also re-designed with number of interesting improvements. The fan frame corners are completely made of rubber, which definitively helps to lower vibrations transfer to the whole chassis. There’s an extra rubber gasket included for further isolation against fan vibrations.
At the back side of the rotor is a tiny switch for selection of max. RPM. We like to see that industry has started using these kind of switches to let the user decide which RPM speed mode should the fan work with.
Fans feature no LED lighting and has pretty flexible frame. The 9-blade design provides balanced air flow and static pressure. It’s nice to see that fans are starting at approx. 500-600 RPM which keeps the system very silent for users who prefer quieter operation.
Cooler Master MasterLiquid Pro 240 Specifications:
|MasterLiquid Pro 240||MasterLiquid Pro 120|
|CPU Socket||Intel® LGA 2011-3 / 2011 / 1366 / 1150 / 1151 / 1156 / 1155 / 775
AMD FM2+ / FM2 / FM1 / AM3+ / AM3 / AM2+
|Radiator Dimension (L x W x H)||275 x 118.5 x 27 mm
10.83 x 4.67 x 1.06 inch
|145 x 118.5 x 38 mm
5.71 x 4.67 x 1.50 inch
|Fan Dimension||120 x 120 x 25 mm
4.7 x 4.7 x 1 inch
|Fan Speed||500 ~ 2000RPM ± 5%|
|Fan Air Flow||66.7 CFM (Max)
113.32 m3/h (Max)
|Fan Air Pressure||2.34 mm H2O (Max)|
|Fan MTTF||490,000 Hours|
|Fan L-10||70,000 Hours|
|Fan Noise Level||6-30 dBA|
|Fan Bearing Type||POM Bearing|
|Fan Rated Voltage||12 VDC|
|Pump Dimension (L x W x H)||94.8 x 68 x 56.9 mm (3.7 x 2.68 x 2.2 inch)|
|Pump Waterblock Material||Copper|
|Pump Speed||1100 ~3300RPM (PWM)|
|Pump Bearing Type||Ceramic|
|Pump Rated Amperage||0.5 A|
|Pump Power Connector||4Pin (PWM)|
|Tube Diameter||Φ8 mm|
|Tube Length||358 ± 5mm|
|Pump MTTF||175,000 Hours|
|Pump L-10||50,000 Hours|
|Pump Noise Level(dB-A)||<12 dBA|
|Pump Rated Voltage||12 VDC|
|Pump LED||Blue LED|
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 are using fanless PSU. We mostly do fan noise test over night so we have our room as silent as possible.
We take noise values from distance of 30cm.
For testing we are using OCCT software and between each test we leave the system at least 15 minutes to rest. Thus, the temperature comes back to the IDLE state. Followed by overclocking with help of Easy Tune Software (for Gigabyte mainboard) or for ASUS mainboard (CPU Ratio only). 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 were 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.
Intel® Core™ i7-4790K Processor
|Fan max. RPM||noise dB(A) 2x fans distance 30cm|
|IDLE PWM mode||800||32dB(A)
|@4.4GHz PWM mode||1500||40dB(A)|
|@4.7GHz PWM mode||2000||44.5dB(A)|
Cooler Master MasterLiquid Pro 240 liquid cooler showed interesting new design upgrade. It offers decent cooling performance and adjustable fan RPM. It offers the performance ratio between its competition by lower overclocked system, where it positioned somewhere in the middle, right next to the SilverStone TD02-LITE and Corsair H100i GTX. Although, it looks like its maximum comfort zone under full system load is around 4.7Ghz. Also fans went to maximum 2000 RPM which makes the system pretty noisy. Overall the build quality is very good and there were no issues found at all. The system stayed comfortably silent in idle as well as acceptable loud by 50% load. The blue LED illumination may match many builds, but users with red or other color theme, won’t have much joy. RGB LED would be definitively the way to go in future.
The unique pump design is impressive and we are happy to see something new on the market. Also impressive is the radiator itself and we understand the reason of using aluminium as main material. Despite of the fact that copper would be better choice, it would at the same time raise the final price of the product quite a bit. So, Cooler Master had to find balance between price and performance, which resulted to this decision.
The FEP tubing is kind of hate it or go with it, but they have been used for many years by other products and so far didn’t show much fail rate. Only down side would be the problematic installation in smaller form factor cases. On the other side, fans have interesting design and are in acceptable noise range between 5V – 7V (1300-1500RPM) where they deliver optimal balance between noise/air flow. Game changes a lot when you turn RPM to max, where they become very loud and produce strong vibrations.
When it comes to price, the MasterLiquid Pro 240 for €119 and MasterLiquid Pro 120 with €109,90 are these AIO units in rather higher price segment along with competition coolers like Corsair Hydro Series H100i or H110i.
For its new radiator and pump design, build quality and decent performance, we are giving the MasterLiquid Pro 240 our Silver Recommendation.
Good build quality
Rubber fan corners
Only blue LED
Loud fans at 2000RPM