Alex, you're not loading it one little bit unless you're using a MoDem and printer from 30 years ago.
Unless he has all that gear plus
his PC is running a 700w powers supply to feed multiple hard drives in raid configuration, an external HD, dual SLI linked video cards that take so much power they each require their own separate rail from the power supply, two monitors (one a 22"CRT), and a 5.1 PC surround system where all speakers are powered via a PS in the sub woofer connected to the same outlet.
OK, that's not quit my PC but close. I have but one internal drive.