A first time PC owner drops off their brand new PC for service, reporting that it is slow and the memory
should be 12GB according to the box but only reports 4GB. The RAM voltage was set improperly; one chip
needed to be reseated and the BIOS had to be set to use the triple channel architecture. When picking up
the PC the customer asks what was wrong. Which of the following would be the MOST appropriate
response for this customer?