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Attention: The setup conguration on the computer you are servicing might have been customized. Running
Automatic Conguration might alter the settings. Note the current conguration settings (using the View
Conguration option); then, when service has been completed, verify that those settings remain in effect.
Strategy for replacing a hard disk drive, a solid-state drive, or an mSATA
solid-state drive
Always try to run a low-level format before replacing a hard disk drive. This will cause all customer data on
the hard disk to be lost. Be sure that the customer has a current backup of the data before doing 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 equipped with both a hard disk drive and an mSATA solid-state drive, do not use the
mSATA solid-state drive as a bootable device. The mSATA 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 mSATA
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 mSATA solid-state drive after installing it on the computer you are
servicing. Otherwise, the mSATA solid-state drive will not function correctly. For instructions on how to
partition an mSATA 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 might 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 message
Use the error codes displayed on the screen to diagnose failures. If more than one error code is displayed,
begin the diagnosis with the rst error code. Whatever causes the rst 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 for the computer you are servicing.
Strategy for replacing FRUs for CTO, CMV, and GAV
Product denition
Dynamic Congure To Order (CTO)
This provides the ability for a customer to congure a Lenovo solution from an eSite, and have this
conguration sent to fulllment, where it is built and shipped directly to the customer. The machine label,
Product Entitlement Warehouse (PEW), and eSupport will load these products as the 4-digit MT and 3-digit
model, where model = “CTO” (Example: 1829-CTO).
22 Hardware Maintenance Manual