The Laying On Of Hands.
The father of a childhood friend always started fixing household devices by opening doors, re-seating cables, and just fiddling with the equipment. It was reasonably effective, and he referred to this process as "the laying on of hands".
Since I rebuilt my computer a few months ago, it was intermittently failing to find the hard drive on boot up. I figured it was a hardware failure, since there were no boot problems when the drive was found. I cracked the case, poked around a bit, and reseated the SATA cables. I've had no problems since!
The laying on of hands wins again.
Tags: hardware troubleshooting