Removal and replacement procedures
Drive handling
ÄCAUTION: Drives are fragile components that must be handled with care. To prevent damage to the computer, damage to a drive, or loss of information, observe these precautions:
■Before removing or inserting a
■Before handling a
■Before removing an optical drive, be sure that a disc is not in the drive, and be sure that the optical drive tray is closed.
■Handle
■Avoid dropping
■After removing a
■Avoid exposing a
■Avoid exposing a
■If a
Grounding guidelines
Electrostatic discharge damage
Electronic components are sensitive to electrostatic discharge (ESD). Circuitry design and structure determine the degree of sensitivity. Networks built into many integrated circuits provide some protection, but in many cases, ESD contains enough power to alter device parameters or melt silicon junctions.
A discharge of static electricity from a finger or other conductor can destroy
An electronic device exposed to ESD may not be affected at all and may work perfectly throughout a normal cycle. Or, the device may function normally for a while, and then degrade in the internal layers, reducing its life expectancy.
ÄCAUTION: To prevent damage to the computer when you are removing or installing internal components, observe these precautions:
■Keep components in their
■Use nonmagnetic tools.
■Before touching an electronic component, discharge static electricity by using the guidelines described in this section.
■Avoid touching pins, leads, and circuitry. Handle electronic components as little as possible.
■If you remove a component, place it in an
Maintenance and Service Guide |