Today’s all-in-one (AIO) liquid cooling systems are evolving from simple hardware that removes processor heat to miniature computer platforms. Many newly announced models attract attention with color screens, approaching smartphone sizes, advanced monitoring software and multimedia capabilities.

The screens used in some cooling systems are even larger than the 4.7-inch panels found in the Apple iPhone SE model. An easy temperature sensor is no longer sufficient to manage these displays.

Computers hidden inside cooling blocks

ASUS uses a 6.67-inch curved AMOLED display with a resolution of 2400 × 1080 on the ROG Strix SLC IV model. The company also highlights individualization features by offering a 3.5-inch IPS panel option in the ROG Strix LC IV model.

These screens have special units called microcontrollers (MCU) to process graphics, animation and telemetry data. These small computers, integrated on a single chip, can operate independently with their own processors, memory and storage.

Twenty years ago, a high-end CPU cooler was just a big metal block and fans. Today’s flagship AIO models are equipped with features such as wireless communication, high-resolution displays, RGB controllers and image playback.

This technological complexity makes cooling systems one of the most remarkable components of a modern computer. Manufacturers are now competing not just on thermal performance, but also on aesthetics and software ecosystems.

Aesthetics and functionality race in the hardware market

JONSBO’s TM-280 comes with a 3.95-inch IPS display that can play hardware stats, GIF documents, and MP4 images. ASRock, on the other hand, uses 3-inch LCD panels in the Challenger Digital series that display data such as processor temperature and pump speed.

Antec raises the bar by offering a 5-inch rotatable IPS display with a resolution of 1280 × 720 with the Vortex View 360 model. MSI, on the other hand, takes an approach that emphasizes the value of the exterior, with the screen hidden under a fabric-covered cooler design.

In addition to display technologies, manufacturers continue to increase thermal performance with faster pumps and improved fan designs. ASUS added a small fan for VRM cooling, while JONSBO models support processor loads of up to 285W TDP.

These components are now managed through proprietary software packages, internal USB connections, and proprietary communication interfaces. ASUS’s wireless display solution works with a system that uses special contact points on the motherboard for power and information transfer.

This development of cooling systems offers higher priced but visually powerful options for enthusiasts who build systems.

Do you think these large screens added to processor coolers are really necessary, or are they just a visual show?