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Overview
During the Power On Self-Test (POST), if the BIOS detects an error requiring you to do
something to fix, it will either sound a beep code or display a message.
If a message is displayed, it will be accompanied by:
PRESS F1 TO CONTINUE, CTRL-ALT-ESC OR DEL TO ENTER SETUP
Post Beep
Currently there are two kinds of beep codes in BIOS. This code indicates that a video
error has occurred and the BIOS cannot initialize the video screen to display any additional
information. This beep code consists of a single long beep followed by two short beeps.
The other code indicates that your DRAM error has occurred. This beep code consists of
a single long beep repeatedly.
Error Messages
One or more of the following messages may be displayed if the BIOS detects an error
during the POST. This list includes messages for both the ISA and the EISA BIOS.
1.
CMOS BATTERY HAS FAILED
CMOS battery is no longer functional. It should be replaced.
2.
CMOS CHECKSUM ERROR
Checksum of CMOS is incorrect. This can indicate that CMOS has become corrupt. This
error may have been caused by a weak battery. Check the battery and replace if
necessary.
3.
DISK BOOT FAILURE, INSERT SYSTEM DISK AND PRESS ENTER
No boot device was found. This could mean that either a boot drive was not detected or the
drive does not contain proper system boot files. Insert a system disk into Drive A: and
press <Enter>. If you assumed the system would boot from the hard drive, make sure the
controller is inserted correctly and all cables are properly attached. Also be sure the disk
is formatted as a boot device. Then reboot the system.
4.
DISKETTE DRIVES OR TYPES MISMATCH ERROR - RUN SETUP
Type of diskette drive installed in the system is different from the CMOS definition. Run
Setup to reconfigure the drive type correctly.
ESM-2740/2743 User's Manual
User's Manual
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