It looks as though I'm going to have to wait for being in the UK All tools are packed. Total chaos here as sale of house was held up, so week of sorting up near DFW was lost. PC now just MB and HD in old meat boxes of all things. Hope they work in a new case - didn't want to lose the OEM OS.
I probably could clean this unit in an hour or so, but not in son's house. I did put the Dyson vac on the outlet and could not see ANY sign of fluff, but it might be it's just sucked it into a tighter blob.
Better not linger.