T e c n i c a l I n f o r m a t i o n
A THE SYSTEM UNIT
This appendix provides instructions regarding access to the inside of the system unit for the purposes of maintaining or upgrading the system, plus some of the general system/drives specifications. The only tool required is a small cross head screwdriver.
Warning
Turn off the computer and unplug all power cords before removing the top cover.
Anti-static precautions
Static electricity can cause permanent damage to electronic components. You should be aware of this risk, and take precautions against the discharge of static electricity into the computer.
Static electricity can be generated by moving on a chair, brushing against desks or walls, or simply walking across an ordinary carpet. Items handed from one person to another, or being wrapped or unwrapped, can acquire a static charge. Air conditioning systems can also result in very high levels of static.
Clothing made of synthetic fibres is particularly likely to generate static electricity; this static electricity is often completely unnoticed by the wearer, but can be sufficient to cripple or destroy sensitive electronic components in computers.
The computer is at risk from static discharge while the top cover is off, as the electronic components of the motherboard are exposed. Memory modules, cache upgrades and OverDrive processors are other examples of electrostatic sensitive devices (ESSDs).
All work that involves removing the cover must be done in an area completely free of static electricity. We recommend using a Special Handling Area (SHA) as defined by EN