1240 System Board - Lenovo ThinkPad P15g Gen 2 Hardware Maintenance Manual

Removal steps of the GPU board
Step Screw (quantity)
1
M2 × 8 mm, flat-head, nylon-coated (3)
When installing:
Ensure that the connector is attached firmly.

1240 System board

Important notices for handling the system board
When handling the system board, read the following:
• 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 material.
For access, remove these FRUs in order:
• "1010 Bottom door" on page 75
• "1020 M.2 solid-state drive" on page 75
• "1030 Memory module under the bottom cover" on page 76
• "1040 Keyboard and keyboard sub board" on page 78
• "1070 Memory module under the keyboard" on page 83
• "1150 MIMO wireless-WAN antenna assembly with cable(for P17 Gen 2)" on page 95
• "1180 Coin-cell battery" on page 99
• "1160 Base cover assembly" on page 95
• "1180 Coin-cell battery" on page 99
• "1220 Thermal fan assembly" on page 103
• "1230 GPU board" on page 104
94Torque
Color
Black 0.181 Nm
(1.85 kgf-cm)
.
Chapter 9 Removing or replacing a FRU
105