Lenovo B490 Notebook - Manual (Page 71)

When installing: Before you attach the thermal module to the computer, apply thermal grease, at an amount
of 0.2 grams, on the part marked
a and b as shown in the following illustrations. Either too much or too less
application of grease can cause a thermal problem due to imperfect contact with a component.
For models with a discrete thermal module
a
b
For models with an integrated thermal module
a
1170 Microprocessor
For access, remove these FRUs in order:
•
“1010 Battery pack” on page 44
• “1020 Bottom slot cover” on page 44
• “1030 Optical drive” on page 45
• “1040 Memory modules” on page 46
• “1050 Hard disk drive assembly” on page 47
• “1060 PCI Express Mini Card for wireless LAN” on page 49
• “1070 mSATA solid-state drive” on page 50
• “1080 Backup battery” on page 51
• “1090 Keyboard” on page 51
Chapter 7 . Removing and replacing a FRU 65