Many motherboard manufacturers already include a graphics card holder for the AGP and PCI Express socket. This is designed to prevent the card from slipping out of the slot after installation. But other manufacturers don't offer this safeguard against loose cards, which represent a major cause of PC malfunctions.

Also, motherboard makers haven't given much thought about fastening down PCI or ISA cards. No one has considered the possibility that these too could slip out of the socket, although they are fastened to the case by screws. That could not only result in damage to the card, but also to the motherboard when the PC is switched on again.