Important Notice For Replacing A System Board; Fru Identification - Lenovo Zhao Yang E40-30 Hardware Maintenance Manual

Attention: The drive startup sequence in the computer you are servicing may have been changed. Be
extremely careful during write operations such as copying, saving, or formatting. If you select an incorrect
drive, data or programs can be overwritten.

Important notice for replacing a system board

Some components mounted on a system board are very sensitive. Improper handling of a system board can
cause damage to those components, and may cause a system malfunction.
Attention: When handling a system board:
• Do not drop a system board or apply any excessive force to it.
• Avoid rough handling of any kind.
• Avoid bending a system board and hard pushing to prevent cracking at each ball-grid-array (BGA) chipset.

FRU identification

Use Lenovo eSupport to identify major FRUs, FRU part numbers, and FRU descriptions for a product at an
MT - serial number level. Examples of major FRUs are hard disk drive, system board, liquid crystal display
(LCD), and memory module.
To identify the major FRUs for a product, do the following:
1. Go to:
http://www.lenovo.com/support
2. Click Warranty & Services.
3. Click Check Warranty Status.
4. On the Warranty Status Lookup page, click Parts Lookup.
5. Type your machine type and serial number, and then click Submit.
eSupport also can be used to view the general FRU list for a product.
To get the general FRU list for a product, do the following:
1. Go to:
http://www.lenovo.com/support
2. Click Parts.
3. Follow the instructions on the screen to select product.
4. Click Products and Parts Detail.
5. On the PRODUCT AND PARTS DETAIL page, click the Parts Detail tab to view the FRU list.
Note: The FRU list is a general list of components and does not contain specific model information.
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Hardware Maintenance Manual