I think the whine is the coil and is a known issue, I believe somewhere on Gaf a thread was posted about it back while back.
im aware of the coil whine which was fixed last year in an update. my issue isn't that, the sound I get is a constant high pitched eeeeee..... its like my xbox has tinnitus.
I wish they would have made the ps4 bigger. It's so loud. Needs a 120mm fan. That little guy is overworked.
I switched to a second system last summer had issue a second time. I don't think it's a quality control issue I think it's a fan size issue.
Depressing to find out the paste thing too though. Is it a product of it running so hot? PS4s run hot.
thermal paste is supposed to be applied thin. its only meant to fill the tiny gaps in the metal surface of the processor and heat sink, not be a coating of peanut butter. the heat sink design in the ps4 is pretty poor as its attached to stamped out sheet metal. any warping could lead to poor contact between components.
the fan itself is a big issue. blower fans are always noisy since they have to push harder than your typical top down fan. that's why aftermarket gpu that note low noise levels never use them. increasing the fan size wont really help, it needs to be redesigned. Im not sure sony will do it since the ps4 will need to become thicker in order to make it quieter.