2a
2e
2c
2h
2b
2g
2d
2f
3
3
When installing:
• Do not touch the areas marked
a
and
b
in the following illustrations.
b
a
a
b
• Ensure that the fan connector is attached firmly.
• Each screw is marked with a number on the thermal fan assembly. When installing, follow the screw
number to tighten the screws in ascending numerical order; otherwise, the system board assembly
might be damaged.
• If you want to re-use the old thermal fan assembly, remove the thermal grease first, and then apply new
thermal grease to the thermal fan assembly, at an amount of 0.2 grams, before you attach it to the
system board. Either too much or too less application of grease can cause a thermal problem due to
imperfect contact with a component.
1180 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.
94
ThinkPad P50 Hardware Maintenance Manual
Summary of Contents for ThinkPad P50
Page 1: ...ThinkPad P50 Hardware Maintenance Manual ...
Page 6: ...iv ThinkPad P50 Hardware Maintenance Manual ...
Page 11: ...DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information 5 ...
Page 12: ...6 ThinkPad P50 Hardware Maintenance Manual ...
Page 13: ...PERIGO PERIGO PERIGO PERIGO Chapter 1 Safety information 7 ...
Page 14: ...PERIGO PERIGO PERIGO PERIGO DANGER 8 ThinkPad P50 Hardware Maintenance Manual ...
Page 15: ...DANGER DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information 9 ...
Page 16: ...DANGER VORSICHT VORSICHT VORSICHT VORSICHT 10 ThinkPad P50 Hardware Maintenance Manual ...
Page 17: ...VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information 11 ...
Page 18: ...12 ThinkPad P50 Hardware Maintenance Manual ...
Page 19: ...Chapter 1 Safety information 13 ...
Page 20: ...14 ThinkPad P50 Hardware Maintenance Manual ...
Page 21: ...Chapter 1 Safety information 15 ...
Page 22: ...16 ThinkPad P50 Hardware Maintenance Manual ...
Page 23: ...Chapter 1 Safety information 17 ...
Page 24: ...18 ThinkPad P50 Hardware Maintenance Manual ...
Page 28: ...22 ThinkPad P50 Hardware Maintenance Manual ...
Page 46: ...40 ThinkPad P50 Hardware Maintenance Manual ...
Page 64: ...58 ThinkPad P50 Hardware Maintenance Manual ...
Page 122: ...116 ThinkPad P50 Hardware Maintenance Manual ...
Page 123: ......
Page 124: ...Part Number SP40J71944_01 Printed in China 1P P N SP40J71944_01 1PSP40J71944_01 ...