Error Prevention
6-12
HP Servers Troubleshooting Guide
HP CONFIDENTIAL
Writer: Ted Weiman File Name: g-ch6 Error Prevention.doc
Codename: Generic TSG Part Number: 161759-007 Last Saved On: 11/19/02 9:38 AM
Preventing Electrostatic Damage
Many 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 the discharge contains
enough power to alter device parameters or melt silicon junctions.
A sudden discharge of static electricity from your finger or other conductor can
destroy static-sensitive devices or micro-circuitry. Often the spark is neither felt nor
heard, but damage occurs. An electronic device exposed to electrostatic discharge
may not be affected at all and can work perfectly throughout a normal cycle.
However, the device may function normally for a while, then degrade in the internal
layers, reducing the life expectancy of the device.
Preventing Cable Damage
Handle cables with extreme care to avoid damage. Apply only the tension required to
unseat or seat the cables during removal and insertion. Handle cables by the
connector whenever possible. In all cases, avoid twisting or tearing cables. Make sure
that cables are routed in such a way that they cannot be caught or snagged by parts
being removed or replaced.
