• Sockets: Intel LGA 1151, LGA 2011, LGA 2066; AMD AM4, TR4
  • Radiator Size: 240mm
  • Radiator Material: Aluminium
  • Waterblock Material: Copper
  • Dimensions: 272 x 122 x 27 mm
  • Pros:
  • Easy setup
  • OLED display
  • Cons:
  • Cable management

The Dragon That Eats CPU Heat

Thanks to the demands of many for more bling and fancy features, LED displays have made its way to the realm of CPU watercooling. Meet the ROG Ryujin 240, an AIO CPU liquid cooler with an OLED display.

This AIO liquid cooler has a water pump with a removable plastic housing that goes over it. Since it’s plastic, note that the glossy chrome piece on it could scratch easily. The pump itself has a fan embedded on it and is meant to generate some airflow around the CPU socket area, thus cooling the VRMs nearby. The 240mm radiator is a standard one built with aluminium, while the tubes have a braided sleeve protecting them and the contact plate uses copper.

The copper plate here is not the smoothest we've seen, but it performs well enough

The copper plate here is not the smoothest we’ve seen, but it performs well enough

Moving on to the smaller details, another unusual thing for this cooler is that there are two built-in fan headers for the radiator fans. This is to make it so that the fan speeds can be controlled using the ASUS AI Suite tool. While that’s fine and dandy, it does make the cables crisscross around, which is a bit unsightly.

Installation was a mix bag, because while attaching the mounting plate and water pump wasn’t too hard, it did require the plastic cover to be removed first. Due to the position of the tube connections on the pump, the space between it and the first RAM slot is quite tight as well. The plastic housing has a notch on the side to accommodate the tubes, but it does mean that you won’t be able to install the housing in any other orientation.

Once it’s installed and running, the small static pressure fan on the water pump generates good airflow but is rather loud while at it. Fortunately, you can disable that fan. On the flip side, the Noctua fans for the radiator are relatively quiet.

The built-in fan headers make the cables stick out like a sore thumb

The built-in fan headers make the cables stick out like a sore thumb

We used an Intel Core i7-8700K that we clocked at 4.8 GHz for our benchmarks. As you know, this CPU is known to be hotter than the previous generation. It managed to keep it at 76°C, which is not too bad. But considering the chip can be clocked further, thus increasing voltage used, such numbers aren’t great.

The OLED display is just there for aesthetic purposes, though the RGB LEDs are bright and colourful. By default, it displays the ROG logo, but you can use the LiveDash app to upload your own image to it. However, it can’t do more useful things like displaying the CPU temperatures or fan speeds.

CHIP CONCLUDE: If you are looking for a unique AIO to make your rig look better, then you can consider this one.

(to be published in issue November 2018)