OK, so the compressed air thing didn’t really work. The volume of this thing really has to be heard to be believed. It is possibly even louder than my old base unit which had some sort of beasty extractor fan on the side.
I’m pretty sure that it’s not the PSU fan, because that makes a reasonable humming sound. But there is the most irritating, high-pitched whirring sound coming from just inside the case. The fan over the processor is something akin to the head of a small child, so I’m guessing that could be the culprit.
Short of buying a new fan, any suggestions?