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- Thermalright Peerless Assassin in the HP Omen 30L

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05-08-2025 12:52 PM - edited 05-08-2025 12:56 PM
I have a stock HP Omen 30L with the i9-10850K and RTX 3080. I want to replace the stock CPU AIO liquid cooler. Is the Thermalright Peerless Assassin 120SE compatible with this case?
Edit: Product Dimensions 4.92"L x 5.31"W x 6.1"H
TY in advance !
05-08-2025 02:46 PM - edited 05-08-2025 02:52 PM
Greetings @RodBrig
Welcome to the HP Forum.
I don't believe the 30L case can handle a 120 mm air cooler. I'm pretty sure a dual heatsink air cooler (Peerless Assassin) will not work with your PC's case.
It would be a tight fit if the dual heatsink Peerless Assassin 120 fits.
Check this YouTube video showing a Noctua Chromax U9S installation having two 92 mm fans.
Regards
05-08-2025 04:14 PM
TY Bill for your input. Check this video out. This guy installed a "MASSIVE" Noctua NH-D15 inside an Omen 30L. The D15 has 140mm fans. I may try the Peerless Assassin to see if it will fit. If not I will go with the cooler you suggested as it is much cheaper than the NH-D15.
05-08-2025 04:33 PM
Greetings @RodBrig
My pleasure.
Thanks for the video.
The Noctua D15 height exceeds the 30L case width. You can't install the left side glass panel when using the D15.
I pretty sure a 120 mm air cooler may also not work with the 30L case. The Peerless Assassin 120 may exceed 30L case width.
Try the Peerless Assassin but I think it's too big for the 30L case.
Regards
05-08-2025 04:54 PM