Replacing Frus - Lenovo ThinkStation P320 Tiny User Manual

3. Install the computer cover.
Figure 49. Installing the computer cover
4. Install the screw to secure the computer cover.
5. Place the computer in an upright position.
6. If a locking device is available, use it to lock the computer. See Chapter 3 "Computer locks" on page 7.
7. Reconnect the external cables and power cords to the corresponding connectors on the computer.
See "Front view" on page 1 or "Rear view" on page 2 for the locations of various components in your
computer.

Replacing FRUs

Before replacing FRUs
Before replacing any Field Replaceable Units (FRUs), read the following:
• Only certified and trained personnel can service the computer.
• Before replacing an FRU, read the entire section about replacing the part.
• Be extremely careful during writing operations such as copying, saving, or formatting.
The sequence of the drives in the computer that you are servicing might have been altered. If you select an
incorrect drive, data or programs might be overwritten.
• Replace an FRU only with another FRU of the correct model.
When you replace an FRU, ensure that the model of the machine and the FRU part number are correct by referring
to the website http://www.lenovo.com/serviceparts-lookup.
• An FRU should not be replaced because of a single, unreproducible failure.
Single failures can occur for a variety of reasons that have nothing to do with a hardware defect, such as cosmic
radiation, electrostatic discharge, or software errors. Consider replacing an FRU only when a problem recurs. If
you suspect that an FRU is defective, clear the error log and run the test again. If the error does not recur, do not
replace the FRU.
• Only replace a defective FRU.
To check the locations of FRUs, see "Knowing replaceable parts" on page 12.
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Chapter 5 Replacing hardware
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