Lenovo ThinkPad Edge E431 Hardware Maintenance Manual - Page 30

Strategy for replacing a hard disk drive or a solid-state drive - replacement screen

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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. Attention: The drive startup sequence in the computer you are servicing might have been changed. Be extremely careful during write operations such as copying, saving, or formatting. If you select an incorrect drive, data or programs can be overwritten. If the computer is shipped with both an M.2 solid-state drive and a hard disk drive, the M.2 solid-state drive is used for the "cache" function and to support the Intel® Rapid Start Technology. We recommend that users do not replace the M.2 solid-state drive by themselves. Otherwise, the "cache" function will not work and the Intel Rapid Start Technology cannot be used any more. Attention: Ensure that you partition the M.2 solid-state drive after installing it on the computer you are servicing. Otherwise, the M.2 solid-state drive will not function correctly. For instructions on how to partition an M.2 solid-state drive, go to http://www.lenovo.com/support/msata-fru. Important notice for replacing a system board Some components mounted on a system board are very sensitive. Improper handling of a system board can cause damage to those components, and may cause a system malfunction. Attention: When handling a system board: • Do not drop a system board or apply any excessive force to it. • Avoid rough handling of any kind. • Avoid bending a system board and hard pushing to prevent cracking at each Ball Grid Array (BGA) chipset. How to use error codes Use the error codes displayed on the screen to diagnose failures. If more than one error code is displayed, begin the diagnosis with the first error code. Whatever causes the first error code might also cause false error codes. If no error code is displayed, see whether the error symptom is listed in the "Symptom-to-FRU Index" section. Strategy for replacing FRUs for CTO, CMV, and GAV Product definition Dynamic Configure To Order (CTO) This provides the ability for a customer to configure a Lenovo solution from an eSite, and have this configuration sent to fulfillment, where it is built and shipped directly to the customer. The machine label and eSupport will load these products as the 4-digit MT and 3-digit model, where model = "CTO" (Example: 1829-CTO). Custom Model Variant (CMV) This is a unique configuration that has been negotiated between Lenovo and the customer. A unique 4-digit MT and 3-digit model is provided to the customer to place orders (Example: 1829-W15). A CMV is a special bid offering. Therefore, it is NOT generally announced. 24 Hardware Maintenance Manual

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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.
Attention:
The drive startup sequence in the computer you are servicing might have been changed. Be
extremely careful during write operations such as copying, saving, or formatting. If you select an incorrect
drive, data or programs can be overwritten.
If the computer is shipped with both an M.2 solid-state drive and a hard disk drive, the M.2 solid-state drive
is used for the “cache” function and to support the Intel® Rapid Start Technology. We recommend that
users do not replace the M.2 solid-state drive by themselves. Otherwise, the “cache” function will not work
and the Intel Rapid Start Technology cannot be used any more.
Attention:
Ensure that you partition the M.2 solid-state drive after installing it on the computer you are
servicing. Otherwise, the M.2 solid-state drive will not function correctly. For instructions on how to partition
an M.2 solid-state drive, go to http://www.lenovo.com/support/msata-fru.
Important notice for replacing a system board
Some components mounted on a system board are very sensitive. Improper handling of a system board can
cause damage to those components, and may cause a system malfunction.
Attention:
When handling a system board:
•
Do not drop a system board or apply any excessive force to it.
•
Avoid rough handling of any kind.
•
Avoid bending a system board and hard pushing to prevent cracking at each Ball Grid Array (BGA) chipset.
How to use error codes
Use the error codes displayed on the screen to diagnose failures. If more than one error code is displayed,
begin the diagnosis with the first error code. Whatever causes the first error code might also cause false
error codes. If no error code is displayed, see whether the error symptom is listed in the “Symptom-to-FRU
Index” section.
Strategy for replacing FRUs for CTO, CMV, and GAV
Product definition
Dynamic Configure To Order (CTO)
This provides the ability for a customer to configure a Lenovo solution from an eSite, and have this
configuration sent to fulfillment, where it is built and shipped directly to the customer. The machine label and
eSupport will load these products as the 4-digit MT and 3-digit model, where model = “CTO” (Example:
1829-CTO).
Custom Model Variant (CMV)
This is a unique configuration that has been negotiated between Lenovo and the customer. A unique 4-digit
MT and 3-digit model is provided to the customer to place orders (Example: 1829-W15). A CMV is a special
bid offering. Therefore, it is NOT generally announced.
24
Hardware Maintenance Manual