Knowing Frus (Including Crus) - Lenovo ThinkCentre M710q Hardware Maintenance Manual

b. Runtime metadata
c. Desktop management interface (DMI)
d. CGPT partition layout
e. CGPT layout check
• OS Tests: Depending on the suspected failing part, select a corresponding test.
7. Replace the failing part. Refer to the replacing instructions for the part in this chapter.
8. Reconnect the computer to the Internet with a static IP address, as required by Amazon.
9. Reconnect the keyboard and mouse to the computer.
10. Reconnect the computer to ac power and turn on the computer.
11. In the Welcome screen, click the test button at the right-bottom corner. Then, the self-checking and
manufacturing auto-testing will start automatically to verify whether the failing part has been replaced
properly.
Notes:
• The manufacturing auto-testing will start automatically when the self-checking completes. The self-
checking might take around ten minutes.
• During the manufacturing auto-testing, firmware, TPM, and client ID will be tested automatically.
• If the manufacturing auto-testing fails, refer to

Knowing FRUs (including CRUs)

• Field Replaceable Units (FRUs) are computer parts that a trained technician can upgrade or replace. FRUs
include all CRUs. For detailed FRU information, such as the FRU part numbers and supported computer
models, go to:
http://www.lenovo.com/serviceparts-lookup
• Customer Replaceable Units (CRUs) are computer parts that a user can upgrade or replace.
– Self-service CRUs: You can install self-service CRUs easily. These CRUs might be stand-alone,
latched, or secured by up to two screws. Examples of self-service CRUs include the keyboard, mouse,
any USB device. You are responsible for replacing all self-service CRUs.
– Optional-service CRUs: Handling optional-service CRUs requires some technical skills and simple tools
(such as a screwdriver). These CRUs are isolated parts within the computer. They are usually
concealed by an access panel that is secured by more than two screws. You must remove the screws
and panel to access the specific CRU. Optional-service CRUs can be removed and installed by users
or, during the warranty period, by a Lenovo service technician.
Before replacing FRUs
Before replacing any FRU, 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.
• An FRU should not be replaced because of a single, unreproducible failure.
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M710q Hardware Maintenance Manual
Amazon Project Failure Handing Instruction
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