Side sound ... going from 3000 rev / min to 700 ... We do not hear. I had to change a BIOS setting that signaled me a failure ventillo start: less than 600 r / min = fail on my ASUS. Fortunately, I could lower the alert threshold. This false positive is not the product, so no star less.
Assembly is easy if you take care to follow the instructions. Count one hour to complete disassembly cycle, cleaning, reassembling. I advise to spend the processor WD40 to remove thermal paste residue before applying the supplied tube.
