a method and apparatus are disclosed for restricting electrical connection to an electrical contact in a hard disk drive . a hard disk drive is provided which includes an electrical interface having a plurality of electrical contacts , and a restricting member . access to at least one of the electrical contacts is restricted through the restricting member such that an electrical connection between the restricted contact and another electrical contact is avoided . the restricting member may be a shroud associated with the restricted electrical contact . the shroud includes an access passage which allows for an electrical connection between the restricted electrical contact and a contact on a self test rack . the shroud also prevents a shorting jumper from being placed on the restricted electrical contact , thus reducing the possibility of an inadvertent electrical connection between the restricted electrical contact and another electrical contact .