Lenovo ThinkPad X230 Tablet User Manual
Page 98
Loosen the screws
4
in ascending alphabetic order as illustrated. When attaching the thermal fan assembly,
secure the screws in reverse order.
4a
4c
4b
4d
5
When installing:
Before you attach the thermal fan assembly to the computer, apply thermal grease, at an amount of 0.2
grams, on the part marked
a
as in the following illustration. Either too much or too less application of grease
can cause a thermal problem due to imperfect contact with a component. You need to peel the thin film
off from the rubber
b
.
a
b
a
Attention: The following components soldered on the system board are extremely sensitive. When you
service the system board, avoid any kind of rough handling.
a
Platform Controller Hub (PCH)
b
Microprocessor
c
Accelerometer chip for the hard disk drive Active Protection System™
92
Hardware Maintenance Manual