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Strategy for replacing a hard disk drive
Always try to run a low-level format before replacing a hard
disk drive.
Attention: The drive startup sequence in the computer
you are servicing may 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.
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:
v Do not drop a system board or apply any excessive
force to it.
v Avoid rough handling of any kind.
v Avoid bending a system board and hard pushing to
prevent cracking at each BGA (Ball Grid Array) chipset.
How to use error messages
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 may 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 definition
Dynamic Configure To Order (CTO)
This provides the ability for a customer to configure an
IBM
®
solution from an eSite, and have this configuration
sent to fulfillment, where it is built and shipped directly to
the customer. The machine label, PC Entitlement
Warehouse (PEW), eSupport, and the HMM 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 IBM and the customer. A unique 4-digit MT and
Important service information
4 MT1866/1867/1869