FUD Zilla spotted an odd story over at the EVGA Forums from a guy who complains his new GeForce GTX 295 Quad SLI setup is interfering with his garage door remote. Apparently, the graphics cards are emitting just the right radio frequencies to interfere with the garage door opening system.
He claims that the problem resolves itself when he shuts off his system and notes that the problem never occurred in the past with any other GPUs, all while using the same power supply unit. He also mentioned that the system, located in his office room, is on another circuit from the garage's power, so the problem is certainly not likely to be an outside variable.
The observation at hand begs the question of just how valid the FCC's safety and electromagnetic interference rating approvals might be. We know that EM fields can do strange things, but as Skydive states, "[the card] has to be pushing acceptable levels by the FCC if it can jam your garage door remotes."