If you do, you will quickly contaminate the heads and platters, and eventually ruin the drive. You will also void the warranty of the drive if you try to open it up, as the warning labels on the drive itself will attest. The logic board is normally mounted on the bottom of the base casting, exposed to the outside. It is separated from the base casting using foam or other cushioning material. This is accomplished either with a flexible ribbon cable that runs from the logic board through a gasket and into the hard disk chamber, or a set of pins that goes through a hole in the base casting, mating to a special connector inside the head-disk assembly that connects to the heads.
Some manufacturers apply a coating to the inside of the base casting before assembling the drive.
The purpose of this coating is to seal in, against the walls of the casting, any minute particles of dirt or metal that might be hiding in the casting and might later dislodge and end up damaging the disk. This page has been served 6797 times. Copyright 1997-2001 Charles M. Kozierok . All Rights Reserved. Not responsible for any loss resulting from the use of this site .