IBM 704 User Manual download pdf (Page 155)

Replacing the Real-Time Clock

The real-time clock (RTC) contains a long-life, integral lithium

battery. If the battery malfunctions (for example, the CMOS

random-access memory (RAM) no longer stores the correct system

settings), you must replace the RTC as described in this section.

Contact your IBM reseller or IBM marketing representative for

information about approved replacement devices.

This product has been designed with your safety in mind. The

lithium battery must be handled correctly to avoid possible danger.

If you replace the battery, you must adhere to the following

requirements.

CAUTION:

The lithium battery presents a fire, explosion, or severe

burn risk if handled incorrectly. Do not recharge it,

disassemble it, heat it, incinerate it, or expose its cell

contents to water. Dispose of the battery as required by

local ordinances or regulations and the manufacturer's

instructions.

When replacing the battery, use only an equivalent type

battery recommended by the manufacturer. The battery

contains lithium and can explode if not properly used,

handled, or disposed of.

Notes:

1. Replace the real-time clock module only with IBM FRU part

number 75H9104 or with an IBM recommended equivalent. Use

of any other real-time clock module could result in ignition or

explosion.

2. Be sure to review the information provided in the PC Server 704

Safety Information booklet.

Chapter 4. Installing Options 137

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IBM 704 User Manual Page 155