Replace A Cru; Pen Dummy (For Selected Models Of 300W Gen 3 And 500W Gen 3); Base Cover Assembly - Lenovo 100w Gen 3 User Manual

4. If prompted by User Account Control (UAC), click Yes.
5. Clear the Turn on fast startup check box, and then click Save changes.
To disable the built-in battery:
1. Enter the setup utility.
2. Select Configuration ➙ Disable Built-in Battery and press Enter.
3. Select Yes in the Setup Confirmation window. The built-in battery is disabled and the computer turns off
automatically. Wait three to five minutes to let the computer cool.

Replace a CRU

Follow the replacement procedure to replace a CRU.

Pen dummy (for selected models of 300w Gen 3 and 500w Gen 3)

For computer models come with a pen dummy, you can purchase a Lenovo Integrated Pen to use. To
purchase the pen, go to
Pen (for selected models of 300w Gen 3 and 500w Gen 3 only)" on page 14.
Prerequisite
Before you start, read
Generic Safety and Compliance Notices
For access, do the following:
1. Ensure that your computer is off or in sleep mode. Disconnect the computer from ac power and all
connected cables.
2. Close the computer display and turn the computer over.
Removal procedure
Use a tool as shown to release the pen dummy, then remove it.

Base cover assembly

Prerequisite
Before you start, read
Generic Safety and Compliance Notices
Note: Do not remove the base cover assembly when your computer is connected to ac power. Otherwise,
there might be a risk of short circuits.
26
Lenovo 100w Gen 3/300w Gen 3/500w Gen 3 User Guide
https://www.lenovo.com/accessories . To use the pen, see "Use Lenovo Integrated
and print the following instructions.
and print the following instructions.