Lenovo ThinkPad X13 Yoga Gen 2, Руководство по техническому обслуживанию аппаратной части, Страница: 28 / 105

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.
After replacing the system board, use the Maintenance Utility to bind the model type, serial number, and
Brand ID of the computer with the new system board. Refer to
https://support.lenovo.com/us/en/solutions/
HT506954
for instructions on how to do that. As an alternative, you also can use the Golden Key U1 tool for
that purpose. Refer to
https://support.lenovo.com/us/en/solutions/ht507251
for instructions.
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 BGA (Ball Grid Array)
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 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, special bid model, and standard
models
This topic provides information about the model types and FRU identification.
Product definition
This topic introduces different model types and how to identify each type.
Dynamic Configure To Order (CTO)
This model provides the ability for a customer to configure a Lenovo solution from a web site, 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-character MT, 4-character model and 2-character country code.
The model is “CTO1” and the default country code is “WW” (example: 20AACTO1WW).
Special bid model
This model is a unique configuration that has been negotiated between Lenovo and the customer. A unique
MTM consists of a 4-character MT, a 4-character model, and a numeric 2-character country code is provided
to the customer to place orders (example: 20AA000955). The country code assigned is numeric and does not
designate a specific country or region. The custom model factsheet for the MTM indicates which country the
special bid MTM is set up for. Special bid offering is not generally announced.
Standard model
Standard models (fixed configuration) are announced and offered to all customers. The MTM portion of the
machine label consists of a 4-character MT, a 4-character model, and an alphabetic 2-character country
code. The country code assigned is alphabetic and represents a designated country or region (example:
20AA0009UK).
22
X13 Yoga Gen 2 Hardware Maintenance Manual