Corsair Hydro Series H115i Pro RGB 280mm Liquid CPU Cooler Review

Test Setup

For our tests, we used a test rig which includes the ASRock Z370 Gaming-ITX/ac motherboard, along with an Intel Core i7-8700K (Coffee Lake) at default clock speed of 3.7GHz (overclock speed at 4.9GHz), as well as 8GB of G.Skill Trident-Z DDR4-3200 ram in dual channel mode.

All tests were conducted at default speed at a resolution of 1920×1080. High or Ultra settings enabled.

CPU Intel Core i7-8700K (Coffee Lake) @ 3.7GHz 
Overclocked  5.0GHz
Cooling Corsair H115i Pro RGB Liquid CPU cooler
Motherboard ASRock Z370 Gaming-ITX/ac
Ram 2 x 4GB G.Skill Trident-Z DDR4-3200
XMP 2.0 profiles Memory timings : 15-15-15-35 @1.35v
SSD/HDD Patriot Hellfire PCIE M.2 256GB SSD
PSU Thermaltake Toughpower RGB 750W
VGA card N/A
VGA Drivers Latest Intel drivers
OS Windows 10


Corsair Link Software

The Corsair Link Software allows you to change the RGB effects including different Colours, Mode and Speed. Available modes include Rainbow, Static, Blink, Color Pulse, Color Shift or Temperature. You can also check the temperature, as well as the speed of the fans and pump.


Idle Temperatures (default 3.7GHz)

At default clock speed, our idle temperatures were surprisingly low at only 35 degrees Celsius. 


Load Temperatures (Turbo Boost @ 4.3GHz)

Ok, now for the temperature reading at full load. Still very good at only 80 degrees Celsius. I guess the larger radiator, along with the 2 x 140mm fans really helped.



Idle Temperatures (overclocked 4.9GHz)

Not much to report here. Idle temperature was around 39 degrees Celsius, which what we expected. Not much CPU activity here.



Load Temperatures (overclocked 4.9GHz)

Darn! These Coffee Lakes run HOT! Full load temperature reached a high of 89 degrees Celsius, which looks pretty high, but mind you the CPU is running at 4.9Ghz (full load). But still, the AIO cooler can handle it…. the larger radiator and the 2 x 140mm fans made all the difference.


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Winston has over 20 years of experience in the I.T. Industry. He launched Funky Kit with the aim to capture a wider audience worldwide. His knowledge in PC hardware is very distinguished, not only publishing enjoyable reviews but also writing great articles.