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Liquid cooler blocks RAM port
(lemmy.world)
Many 360 coolers require low profile RAM sticks. Does your manual for the part possibly mention this?
Unfortunately, there are real physical limitations to computer hardware. I have an ITX mobo, and I have to use my CPU cooler upside down, because it would block the only two RAM slots otherwise.
You should return the cooler and get something that fits, or return the RAM and get a lower profile kit that works with the cooler. I've never seen a CPU cooler riser, so those are really your only options, I think.
Try an air cooler.