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9
POST
Error
Messages
This
appendix
lists
the
error
messages
and
the
various
audible
sequences
that
you
may
encounter
during
Power-On
Self-Test
(POST)
or
computer
restart,
the
probable
source
of
the
problem,
and
steps
you
can
take
to
resolve
the
error
condition.
POST
Text
Messages
The
section
includes
some
text
messages
that
may
be
encountered
during
POST.
NOTE:
The
computer
will
beep
once
after
a
POST
text
message
is
displayed
on
the
screen.
Recommended
actions
in
the
following
table
are
listed
in
the
order
in
which
they
should
be
performed.
WARNING!
When
the
computer
is
plugged
into
an
AC
power
source,
voltage
is
always
applied
to
the
system
board.
To
reduce
the
risk
of
personal
injury
from
electrical
shock
and/or
hot
surfaces,
be
sure
to
disconnect
the
power
cord
from
the
wall
outlet
and
allow
the
internal
system
components
to
cool
before
touching.
Table
10-1
Numeric
Codes
and
Text
Messages
Control
panel
message
Description
Recommended
action
Default
BIOS
settings
have
been
loaded
due
to
BIOS
update
or
checksum
issue.
Press
<F10>
to
enter
Setup.
Otherwise,
allow
the
PC
to
continue.
ERROR:
CPU
Fan
Has
Failed.
PC
will
automatically
power
down
in
a
few
seconds.
Service
PC
immediately
to
prevent
damage
to
CPU.
ERROR:
System
Fan
Has
Failed.
Service
PC
to
prevent
damage
to
the
system.
Press
F2
to
continue.
ERROR:
Unsupported
CPU
installed.
PC
will
automatically
power
down
in
a
few
seconds.
BIOS
has
been
updated
or
returned
to
default
settings.
CPU
fan
is
not
connected
or
may
have
malfunctioned.
System
fan
is
not
connected
or
may
have
malfunctioned.
Recently
installed
CPU
is
not
supported
by
the
system.
Press
F10
to
enter
Computer
Setup
and
configure
the
system
or
ignore
the
message
and
accept
the
default
settings.
1.
Reseat
the
CPU
fan.
2.
Reseat
the
fan
cable.
3.
Replace
the
CPU
fan.
1.
Reseat
the
system
fan.
2.
Reseat
the
fan
cable.
3.
Replace
the
system
fan.
Install
a
CPU
supported
by
your
system.
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