Replace The System Board - Lenovo ThinkPad P14s Gen 5 Hardware Maintenance Manual

• After replacing the system board, remember to make the sensor calibration. For details, see "Sensor
calibration" on page 62.
• 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
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
Important notices for handling the system board:
When handling the system board, read the following:
• 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.
• The system board has an accelerometer, which can be broken when several thousands of G-forces are
applied.
Note: Dropping a system board from a height of as little as 6 inches so that it falls flat on a hard bench
can subject the accelerometer to as much as 6000 G's of shock.
• Be careful not to drop the system board on a bench top that has a hard surface, such as metal, wood, or
composite.
• Avoid rough handling of any kind.
• At every point in the process, be sure not to drop or stack the system board.
• If you put a system board down, be sure to put it only on a padded surface such as an ESD mat or a
corrugated conductive surface.
• Avoid bending a system board and hard pushing to prevent cracking at each BGA (Ball Grid Array)
chipset.
For access, remove these FRUs in order:
• "Removing the nano-SIM card and nano-SIM-card tray (for selected ThinkPad P16s Gen 3 models)" on
page 68
• "Base cover assembly of ThinkPad P14s Gen 5" on page 68 or "Base cover assembly of ThinkPad P16s
Gen 3" on page 70
• "M.2 solid-state drive and its bracket (for selected models)" on page 72
• "Wireless WAN card (for ThinkPad P16s Gen 3 selected models)" on page 73
• "Memory module" on page 74
• "Built-in battery" on page 75
• "Thermal assembly" on page 78
• "Thermal fan kits" on page 79
• "I/O bracket (on system board)" on page 80
This computer shares a common system board with another computer. After replacing the system board,
you will be prompted to input a brand name to correctly identify the machine type. The following table
contains the brand name required to complete this step.
Note: Input the exact brand name as shown in this table.
Product name
ThinkPad P14s Gen 5
ThinkPad P16s Gen 3

Replace the system board

Step 1. Remove the system board as shown below.
88
ThinkPad P14s Gen 5 and ThinkPad P16s Gen 3 Hardware Maintenance Manual
https://support.lenovo.com/us/en/solutions/ht102004
https://support.lenovo.com/us/en/solutions/
Machine type (MT)
21G2 and 21G3
21KS and 21KT1
for instructions.