IBM Aptiva Hardware Maintenance Guide

2-12
Table 2- 1 BIOS Error Codes, Messages, and Beeps List
BIOS Error Codes,
Messages, beeps
Action/FRU
NOTE: To diagnose a problem, first find the BIOS error messages, codes,
or beeps in left column. If directed to a check procedure, replace the FRU
indicated in the check procedure. If no check procedure is indicated, the
first Action/FRU listed in right column is the most likely cause.
052
IDE Secondary Channel
Master Drive Error
053
IDE Secondary Channel
Slave Drive Error
Ensure the IDE Secondary Channel Master
(Slave) is set to [Auto] in BIOS Setup.
Check hard disk jumper. See “3.5-In. Hard
Disk Drive Jumper Locations” on page 5-21
or "5.25-In. Hard Disk Drive Jumper
Location" on page 5-24.
Hard disk drive power.
Hard disk drive cable/connection.
Hard disk drive.
055
Hard Disk Drive(s) Write
Protected
Ensure that the hard disk drive is not set to
[Write Protected] in the Security Options in
BIOS Setup.
Hard disk drive cable/connection.
Hard disk drive.
061
CPU Clock Mismatch
Enter BIOS Setup and load the default
settings.
070
Real Time Clock Error
Enter BIOS Setup and load the default
settings. RTC battery. See “System Backup
Battery” on page 4-26.
System board.
071
CMOS Battery Bad
Enter BIOS Setup and load the default
settings.
RTC battery. See “System Backup Battery”
on page 4-26.
System board.
072
CMOS Checksum Error
Enter BIOS Setup and load the default
settings.
RTC battery. See “System Backup Battery”
on page 4-26.
System board.

IBM Aptiva Specifications

General

CPU	Intel Pentium
RAM	8 MB to 64 MB
Operating System	Windows 95
Graphics	S3, ATI
Optical Drive	CD-ROM
Ports	Serial, Parallel, PS/2
Expansion Slots	ISA, PCI