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HP still has not come out with a liquid cooler for this computer. Inside the top of this computer is a mounting plate for the fan and radiator. It is held to the computer with 4 Phillips head screws. Mount the fan and radiator first then the cooler on the CPU. Intel BXTS13X Water/Liquid Cooling Thermal Solution This is the only one I could find that had a four pin power connector. The mother board has a dedicated 4 pin plug for liquid cooler.
Sorry, there was a problem. Please try again later.Here is our Support documentation for the full details of the Omen Obelisk. As far as the cooling is concerned, you can definitely add one so long as it's not taller than 5" (giving some wiggle room for the chassis depth of 6.5," but also accommodating the motherboard thickness and CPU). https://support.hp.com/us-en/document/c06169524
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