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Handling electrostatic discharge-sensitive devices
Any computer part containing transistors or integrated circuits (IC) should be considered sensitive to
electrostatic discharge (ESD). ESD damage can occur when there is a difference in charge between objects.
Protect against ESD damage by equalizing the charge so that the server, the part, the work mat, and the person
handling the part are all at the same charge.
✏ NOTE
Use product-specific ESD procedures when they exceed the requirements noted here.
Make sure that the ESD-protective devices you use have been certified (ISO 9000) as fully effective.
When handling ESD-sensitive parts:
• Keep the parts in protective packages until they are inserted into the product.
• Avoid contact with other people.
• Wear a grounded wrist strap against your skin to eliminate static on your body.
• Prevent the part from touching your clothing. Most clothing is insulative and retains a charge even when
you are wearing a wrist strap.
• Use the black side of a grounded work mat to provide a static-free work surface. The mat is especially
useful when handling ESD-sensitive devices.
• Select a grounding system, such as those in the following list, to provide protection that meets the specific
service requirement.
— Attach the ESD ground clip to any frame ground, ground braid, or green-wire ground.
— Use an ESD common ground or reference point when working on a double-insulated or battery-
operated system. You can use coax or connector-outside shells on these systems.
— Use the round ground-prong of the AC plug on AC-operated computers.
✏ NOTE
The use of a grounding system is desirable but not required to protect against ESD damage.
CAUTION:
If your system has a module containing a lithium battery, replace it only with the same module
type made by the same manufacturer. The battery contains lithium and can explode if not
properly used, handled, or disposed of. Do not:
• Throw or immerse into water
• Heat to more than 100×C (212×F)
• Repair or disassemble
• Dispose of the battery as required by local ordinances or regulations.
CAUTION:
When laser products (such as CD-ROMs, DVD-ROM drives, fiber optic devices, or
transmitters) are installed, note the following:
• Do not remove the covers. Removing the covers of the laser product could result in exposure to hazardous
laser radiation. There are no serviceable parts inside the device.
• Use of controls or adjustments or performance of procedures other than those specified herein might
result in hazardous radiation exposure.