I have just built another pc to sell online, and I have been having issues with the aio cooler. The first time I installed it, it was running at over 90c idle. I later discovered this was a mounting issue and I bought some replacement washers. This worked, but then more problems came. I was going to sell it in a couple of days, but the aio fans ramped up to 100% and it sounded like a jet engine. Another issue is that the usually white led on the block turned red. Is this a warning or an error about the aio? The cpu temps are still at around 60c under full load. I've seen that this red light could be a blockages. Could I fix a possible blockage, and if so, how? Thanks