Building-up a semi-custom liquid cooling loop is a bit of a new trend, spawned from a surge in AIO dominance over the market. The ease of installation for AIOs greatly exceeds what’s possible with an open loop, with the obvious loss of some customization and uniqueness. The cooling loss, although present, isn’t necessarily a big factor for the types of buyers interested in AIO CLCs rather than open-loop alternatives. Ever since we saw PNY’s solution years ago, though, and then more recently EVGA’s quick disconnect solution, the market has begun to burgeon with semi-custom loop “CLCs.”

An example of these semi-custom CLCs would be the EK Waterblocks Predator XLC 280 that we benchmarked in our Kraken X62 review. Today’s review also focuses on one of these semi-custom liquid cooling solutions, featuring benchmarks of the Alphacool Eiswolf GPX Pro on a GTX 1080. Our testing looks into thermal performance under baseline conditions (versus a GN Hybrid DIY option), frequency stability and performance, overclocking, and FPS impact. We’ve got a few noise and CPU tests too, though this will primarily focus on the GPU aspect of the cooling. The Alphacool Eiswolf GPX Pro does not work as an out-of-box product, necessitating our purchase of the Alphacool Eisbaer to hook into the system (CPU cooler + radiator). The Eiswolf GPX Pro is a $130 unit, and the Eisbaer cost us ~$145.

This unit was provided by viewer and reader ‘Eric’ on loan for review. Thanks, Eric!

GN reader ‘Eric’ reached-out to us to loan his Alphacool Eiswolf GPX Pro cooling block, which we’ve now applied to a GTX 1080 Founders Edition card. The Eiswolf build process isn’t too difficult – certainly easier than the tear-down of the average FE card. The Eiswolf GPX Pro has an on-card pump with designated in/out tubes, each terminating in threaded quick release valves that hook into a semi-open loop system. We later purchased an Alphacool Eisbaer for our radiator and CPU cooler, then connected them all together.

The review of the Eiswolf will be posted tomorrow, followed shortly by a look at EK WB’s Predator XLC. For today, we’re just posting the build log that our Patreon backers have helped produce.

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