Lenovo ThinkPad X131e Chromebook Hardware Maintenance Manual page 56

• Avoid rough handling of any kind.
• Avoid bending a system board and hard pushing to prevent cracking at each BGA (Ball Grid Array) chipset.
• 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 conductive
corrugated material.
For access, remove these FRUs in order:
Note: Depending on your model type, your computer might not have all the FRUs that are listed.
• "1010 Battery pack" on page 33
• "1020 Bottom slot cover" on page 34
• "1040 PCI Express Mini Card for wireless LAN" on page 36
• "1050 mSATA solid-state drive" on page 37
• "1060 PCI Express Mini Card for wireless WAN" on page 38
• "1070 Hard disk drive or solid-state drive assembly" on page 39
• "1080 Hard disk drive bracket" on page 40
• "1090 Keyboard" on page 41
• "1110 Keyboard bezel assembly" on page 44
Removal steps of system board
When installing: Ensure that the connectors are attached firmly to the system board.
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