IBM 8183 manual Appendix A. Replacing customer replaceable units CRU

Appendix A. Replacing customer replaceable units (CRU)

Some computer models are designed to be serviced with customer replaceable units (CRU). The CRUs for your computer vary by machine type. These procedures are provided to guide you when replacing the following CRUs:

vpower supply

vmicroprocessor

vsystem board

vbattery

vspeaker

vfan

vpower button and LED assembly

For memory DIMMs, PCI adapters, diskette drive, CD-ROM drive, and hard disk drive procedures, see Chapter 2, “Installing options,” on page 7.

If you have Internet access, the most up-to-date User Guide and Hardware Maintenance manual (HMM) for your computer are available from the World Wide Web. To access this information, go to:

http://www.ibm.com/pc/support

To replace some CRUs in your computer, you will need a flat-blade screwdriver.

See “Handling static-sensitive devices” on page 7 before replacing CRUs.

Although there are no moving parts in your computer after the power cord has been disconnected, the following warning is required for proper UL certification.

Warning

Hazardous moving parts

Keep fingers and other body parts away

Caution:

Turn off the computer and wait 3 to 5 minutes to let the computer cool before opening the cover.

Attention

Before disconnecting any cables, take note where the cables are connected.

This is important when installing new CRUs.

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