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Chapter 4. Service and Maintenance
Note: This chapter is intended for qualified IT personnel and IT administrators. QNAP assumes you are a
qualified IT technician.
Safety Considerations
Before performing service procedures, review all the safety information.
To prevent damaging the device, be aware of the warnings below. A discharge of static electricity from
finders or electric conductors may damage system boards or other static-sensitive devices. This damage
may result in shorter life expectancy of the device.
WARNING: To prevent electrostatic damage:
Avoid hand contact by transporting and storing products in static-safe containers.
Place parts on a grounded surface before removing them from their containers.
Avoid touching pins, leads, or circuitry.
Always be properly grounded when touching a static-sensitive component or assembly.
WARNING: To reduce the risk of electric shock and damage to equipment:
Do not disable the power cord grounding plug.
Ensure the electrical outlet and the device plug are easily accessible at all times.
Unplug the power cord from the power supply to disconnect power from the equipment.
WARNING: To reduce the risk of personal injury from hot surfaces, ensure the drives and the
internal system components have cooled before touching them.
Preparation Procedures
To access some components and perform certain service procedures, you must perform one or more of
the following procedures:
• You must use the locking feature of the rack rails to support the ES NAS and gain access to
internal components if your rack provides one.
• Power down the system
If you must remove a system from a rack or a non-hot-plug component from a system, power down the
system. Please refer to the next section for more details on powering down the system.
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