HomePC HardwareRosewill PB240 Liquid AIO Review (Updated)

Rosewill PB240 Liquid AIO Review (Updated)

Don't let the price fool you, this thing will cool you.

Update July 25, 2020: The pump on my unit died, leaving my CPU to overheat whilst playing one of my games. My unit didn’t quite make a full year before dying a horrible death.

The Rosewill PB240 LIquid AIO is an all in one that won’t break the bank but is it worth your hard-earned?

All the negative reviews on New Egg nearly scared me away when I was looking at this all in one liquid cooler. When I picked it up, it was on sale for 60% off. The only issue I had that some of the reviewers on New Egg had was the difficulty of installing the fans to the radiator. It was a bit of a struggle, but once I figured that out, the rest was smooth sailing. Let’s take a look at the specifications from Rosewill.

Rosewill PB240 Specifications

TypeLiquid Cooling System
Block CompatibilityIntel LGA 2066 / 2011 / 1366 / 1151 / 1155 / 1156 / 775AMD Socket AM4 / AM3+ / AM3 / AM2+ / AM2 / FM2 / FM1
Block MaterialCopper
Radiator Dim.274.00 x 122.00 x 32.00 mm
Radiator MaterialAluminum
Fan Size2 x 120mm
Fan RPM0 – 30%: 600 +/- 200 RPM
100%: 1800 +/- 200 RPM
Fan Air Flow53.4 CFM
Fan Noise34.1 dB(A)
Fan Connector4-Pin PWM Fan
FeaturesCPU Compatibility:
Intel Socket – LGA 2011 / 2066 / 1366 / 1150 / 1151 / 1155 / 1156 / 775
AMD Socket – AM4 / AM3+ / AM3 / AM2+ / AM2 / AM1 / FM2+ / FM1Block Material: CopperRadiator Material: AluminumRadiator Dimensions: 6.06 x 4.80 x 1.26 in (154 x 122 x 32 mm)Tube Length: 12.6 in (320 mm)Fan Type: 4-Pin PWMFan Speed: 600 – 1800 RPM ± 10%Fan Airflow: 53.4 CFMFan Static Pressure: 1.48 mm – H2OFan Life: 30,000 hrsNoise Level: 34.1 dBA
Package ContentsPB240 Liquid CPU cooler
Mounting kit for compatible CPU sockets
Two 120mm fans
Fan and radiator mounting screws

Rosewill PB240 Negative Reviews

Many of the reviews online were people complaining about so many of the fins on their radiators being bent, but my radiator didn’t have any bent fins. I either got lucky and got a good one, or they got unlucky. Its also possible Rosewill stepped up quality control after seeing so many complaints. Either way, mine came looking as it should with no bent fins other than the one I bent when my screwdriver slid off the screw.

Another complaint that many reviewers made was the gurgling sound. They said it sounded as if the AIO was only half-filled, so there were constant gurgling sounds. That has not been my experience. The Rosewill PB240 has been installed on my work /gaming rig for several months now, and it hasn’t bothered me at all. I don’t hear any sounds from the pump. I did set a custom fan curve in the bios for the fans as left at their default fan speed the fans would cause vibration making my case rattle. The default fan speed, on my bios, would max the fans out 100% at 60 degrees, so while I was playing a game, they would be going at nearly max speed. My custom fan curve made it, so the fans hit about 80% at 60 degrees, and this removed the case rattle.


I made a short video where I test the cooling power of the Rosewill PB240. It’s worth noting that I ran the test a few times in advance to saturate the loop before recording. Also, the clip of the actual test is sped up by 200% to make it a bit shorter.

The Rosewill PB240 does well at keeping my 2600x cool while working or gaming. While surfing the web or light workloads, temps seem to stay in the ’30s. During heavy workloads or gaming, they are usually in the ’50s. They may spike momentarily to 59-60 degrees but mostly the low 50’s. The air cooler that comes included with the AMD Ryzen 2600x during the same testing was pushing temps into the low to mid-70s. I tried some overclocking with the 2600x (not shown in footage), and it was able to keep the temps down during stress testing.

The fans are Rosewill 120mm high static pressure PWM fans. They are reasonably quiet and move a lot of air. Rosewill includes a PWM fan splitter in case your motherboard doesn’t have enough fan headers.

Stress Test

Final thoughts

The Rosewill PB240 is a budget-friendly no-frills liquid cooler. My experience has been great so far, but I am a sample size of 1, so I would read some other reviews before making a decision. Overall, I am happy with mine. I wanted to reduce the overall noise of my PC, and mission accomplished. My old setup was getting so loud I dreaded sitting down at my desk to work. Everything is whisper quiet now while staying cool.

Charles Leverehttps://www.riverbankwebdesign.ca/
Charles Levere is the editor-in-chief (dork-in-chief) of Urban Dork. When he is not writing or tinkering with hardware, he is most likely playing one of his favorite video games. He also loves being near the water, kayaking, water skiing, or anything that gets him on the water and in the sun.


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