CMOS Battery Replacement
Remove the 3-volt lithium battery from the system board as follows.
Turn off and unplug the system unit and any external options connected to the system.
CAUTION: Removing the battery from the system board causes the computer to lose system configuration
information. If possible, run Setup and record the system configuration settings before removing the battery.
Use that information to restore the system after replacing the battery.
Remove the system access cover.
Locate the battery and its socket on the system board (see Figure 4-2).
Table -3 Beep Code Descriptions
Beeps
Error Message
Description
1
Refresh Failure
The memory refresh circuitry on the system
board is faulty.
2
Parity Error
Parity error in the first 64 KB of memory.
3
Base 64 KB Memory Failure
Memory failure in the first 64 KB.
4
Timer Not Operational
Memory failure in the first 64 KB of memory, or
Timer 1 on the system board is not functioning.
5
Processor Error
The CPU on the system board generated an
error.
6
8042 - Gate A20 Failure
The keyboard controller (8042) may be bad. The
BIOS cannot switch to protected mode.
7
Processor Exception Interrupt Error
The CPU generated an exception interrupt.
8
Display Memory Read/Write Error
The system graphics adapter is either missing or
its memory is faulty. This is not a fatal error.
9
ROM Checksum Error
ROM checksum value does not match the value
encoded in BIOS.
10
CMOS Shutdown Register
Read/Write Error
The shutdown register for CMOS RAM failed.
Summary of Contents for Ready 9734ES Pro
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Page 34: ...Turn on the serial device and the computer Figure 31 Connecting an RS 232C Cable ...
Page 59: ...Figure 5 15 Illustrated Parts Breakdown 980428mc ...
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