Server hardware with their 15000rpm fans will do that. We have a customer specializing in GPU intensive number crunching. They have little storage cupboards accessible from the hallway for every two person office. Their workstations sit there and the cables go through the wall to the desks.
I use a PowerEdge T620 as my daily driver, let me assure you the CPU fans at full speed can be heard clearly through 3 closed doors :P
Server hardware with their 15000rpm fans will do that. We have a customer specializing in GPU intensive number crunching. They have little storage cupboards accessible from the hallway for every two person office. Their workstations sit there and the cables go through the wall to the desks.