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I saw an unused 4 pin connector post on the motherboard for a liquid cooled pump. I didn’t see a place to add a top mounted fan, either. Fans should always blow air out.
Sorry, there was a problem. Please try again later.Yes, you can mount a 120mm fan as described here: https://h30434.www3.hp.com/t5/Gaming-Desktops/Where-how-to-install-additional-120mm-fan-in-Omen-Obelisk/td-p/6916065
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