A Computer/IT slang term meaning to strip a Desktop PC down to its bare chassis or case. Basically the removal of all installed hard drives, disc drives, motherboard, power supply, expansion cards...everything.
Working in the shop today my manager enters with his personal computer and tells me to do a 'tear-down' on it.
My computer is really starting to show its age. It seems I'll have to order new hardware soon and do a 'tear-down'.