Chapter 2. Important service information
This chapter introduces the following important service information that applies to all machine types
supported by this manual:
• “Strategy for replacing FRUs” on page 21
– “Strategy for replacing a hard disk drive or a solid-state drive” on page 21
– “Important notice for replacing a system board” on page 22
– “How to use error message” on page 22
• “Strategy for replacing FRUs for CTO, special-bid, and standard models” on page 22
– “Product definition” on page 22
– “
Important:
• Advise customers to contact the Lenovo
®
Customer Support Center if they need any assistance in
obtaining or installing any software fixes, drivers, and UEFI BIOS downloads. Telephone numbers for
Lenovo Support are available at:
http://www.lenovo.com/support/phone
• System disassembly and reassembly videos that show the FRU removal or replacement procedures for
the Lenovo authorized service technicians are available at:
http://www.lenovoservicetraining.com/ion/
Strategy for replacing FRUs
Before replacing parts:
Ensure that all software fixes, drivers, and UEFI BIOS downloads are installed before you replace any FRUs
listed in this manual.
After a system board is replaced, ensure that the latest UEFI BIOS is loaded to the system board before you
complete the service action.
To download and install software fixes, drivers, and UEFI BIOS, go to
http://www.lenovo.com/ThinkPadDrivers
and follow the instructions on the screen.
Use the following strategy to prevent unnecessary expense for replacing and servicing FRUs:
• If you are instructed to replace a FRU but the replacement does not correct the problem, reinstall the
original FRU before you continue.
• Some computers have both a processor board and a system board. If you are instructed to replace either
the processor board or the system board, and replacing one of them does not correct the problem,
reinstall that board, and then replace the other one.
• If an adapter or a device consists of more than one FRU, any of the FRUs might be the cause of the error.
Before replacing the adapter or device, remove the FRUs, one by one, to see if the symptoms change.
Replace only the FRU that changed the symptoms.
Strategy for replacing a hard disk drive or a solid-state drive
Always try to run a low-level format operation before replacing a hard disk drive or a solid-state drive. This
will cause all customer data on the drive to be lost. Ensure that the customer has a current backup of the
data before you perform this task.
© Copyright Lenovo 2017
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