Lenovo ideacentre 200, Hardware Maintenance Manual, Page: 82 / 140

• Diagnose problems and restore the system to the factory-default settings.
• Refresh the system with the latest firmware and software.
The recovery shim is not necessary when a Customer Replaceable Unit (CRU) is
replaced. If a non-CRU is broken, or there is a strong suspicion that a particular
non-CRU is defective, it can be replaced directly. Otherwise, the recovery shim
must be used to diagnose problems before any non-CRU is replaced.
The following is the list of CRUs for your computer:
1. ac power adapter
2. Coin-cell battery
3. Front cover
4. Keyboard
5. M.2 storage drive
6. Memory modules
7. Mouse
8. Power adapter
9. Power cord
10. Power button board
11. System board frame
12. System fan
13. Wi-Fi card module
For the definition of CRUs, see “Locating major FRUs and CRUs” on page 43.
Creating the recovery shim
To create a recovery shim, do the following:
1. Prepare a USB storage device with at least 4 gigabytes (GB) space. The
required USB storage capacity depends on the size of the recovery image.
Attention: Creating the recovery shim will delete all data stored on the USB
device. To avoid data loss, back up all the data that you want to keep.
2. Download latest version of the recovery shim image from the Lenovo Support
Web site at http://www.lenovo.com/support to create a recovery shim. A
Lenovo service credential is required.
Note: Ensure that you create the recovery shim using the latest version of
the recovery shim image. Using an earlier version might cause the recovery
process to fail.
3. Extract the downloaded file that contains the recovery shim image.
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ideacentre 200 Hardware Maintenance Manual