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When installing:
Ensure that the connectors are attached firmly.
The following component
sensitive. When you service the system board, avoid any kind of rough handling.
1110 Coin-cell battery
For access, remove these FRUs in order:
• "1010 Removable battery" on page 64
• "1020 Base cover assembly" on page 66
• "1030 Built-in battery" on page 67
• "1040 Memory module" on page 69
• "1050 Internal storage drive and drive cable" on page 69
• "1060 Wireless-LAN card" on page 73
• "1070 Wireless-WAN card (available on some models)" on page 74
• "1080 Thermal fan assembly" on page 74
• "1100 System board" on page 77
DANGER
Use only the authorized battery specified for your computer. Any other battery could ignite or
explode.
80
A275 Hardware Maintenance Manual
a
Microprocessor soldered on the top side of the system board is extremely
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