HP ProDesk 400 G4 Small Form Factor (SFF) - Maintenance and Service Guide

Grounding the work area
To prevent static damage at the work area, observe the following precautions:
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Cover the work surface with approved static-dissipative material. Provide a wrist strap connected to
the work surface and use properly grounded tools and equipment.
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Use static-dissipative mats, foot straps, or air ionizers to give added protection.
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Handle electrostatic-sensitive components, parts, and assemblies by the case or PCB laminate. Handle
them only at static-free work areas.
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Turn o power and input signals before inserting and removing connectors or test equipment.
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Use xtures made of static-safe materials when xtures must directly contact dissipative surfaces.
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Keep work area free of nonconductive materials such as ordinary plastic assembly aids and Styrofoam.
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Use eld service tools, such as cutters, screwdrivers, and vacuums, that are conductive.
Recommended materials and equipment
The following grounding equipment is recommended to prevent electrostatic damage:
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Antistatic tape
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Antistatic smocks, aprons, or sleeve protectors
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Conductive bins and other assembly or soldering aids
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Conductive foam
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Conductive tabletop workstations with ground cords of one-megohm +/- 10% resistance
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Static-dissipative table or oor mats with hard ties to ground
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Field service kits
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Static awareness labels
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Wrist straps and footwear straps providing one-megohm +/- 10% resistance
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Material handling packages
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Conductive plastic bags
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Conductive plastic tubes
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Conductive tote boxes
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Opaque shielding bags
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Transparent metallized shielding bags
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Transparent shielding tubes
16 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation