Anywhere you have plural or dissociative people having a discussion about current research there's going to be someone hell-bent on denying their existence with 40 year old info.
I work at a small MSP. Things work pretty well considering how little long term planning happens. We're good at ignoring embers, but great at putting out fires.
I once had a TV tuner card use up 4GB of address space taking me from 8GB down to 4GB. Do you have any add-in cards that can be removed for testing? Or maybe any unnecessary onboard devices that can be disabled in the BIOS/firmware.