Power-On Self-Test (Post); Failure To Boot - Mitsubishi Electric CX series Owner's Handbook Manual

T r o u b l e s h o o t i n g

Power-on self-test (POST)

Whenever the computer is turned on, the BIOS POST routine tests
various hardware components, including memory, and compares
the actual configuration of the computer with that recorded in
CMOS memory.
If POST detects a hardware fault, one or more POST error codes or
messages may be displayed. See the BIOS Setup & POST chapter for
more information and advice.

Failure to boot

On completion of POST, the computer attempts to boot from a
system diskette or bootable hard disk partition. The table below lists
some of the messages that might appear during the boot sequence.
Non-system disk or disk error
Diskette read failure
No boot sector on fixed disk
Fixed disk read failure
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The diskette drive contains a non-system diskette. Either
remove it, or replace it with a system diskette, and press <F1>.
The diskette is either not formatted or defective. Either remove
it, or replace it with a system diskette, and press <F1>.
The hard disk has no active, bootable partition or is not
formatted. If you are still using the original master hard disk
drive supplied with your computer, this is a serious problem
requiring the attention of a service engineer. If you have just
replaced the master drive with an unformatted one, you must
insert a system diskette, press <F1>, and format the new hard
disk as described in your operating system manuals.
The hard disk may be defective. Press <F1> to retry. Make sure
the drive is correctly specified in the BIOS setup utility. If the
problem persists, insert a system diskette, press <F1>, backup
the data held on the defective hard disk and try reformatting it.