Lenovo ThinkCentre A30 Hardware Maintenance Manual (HMM) for ThinkCentre 2296, - Page 18

RECEIVE, CORRECT, RESPONSE?, Power, Management, Disabled, Automatic, Hardware - bios

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Notes: v Type 2296, 8191, 8198, 8199, 8316, and 8434 computers default to come up quiet (no beep and no memory count and checkpoint code display) when no errors are detected by POST. v To enable beep and memory count and checkpoint code display when a successful POST occurs, do the following: 1. Select Start Options in the IBM Setup Utility program (see Chapter 5, "IBM Setup Utility program," on page 21). 2. Set Power-On Self-Test to Enhanced. v Before replacing any FRUs, ensure that the latest level of BIOS is installed on the system. A down-level BIOS might cause false errors and unnecessary replacement of the system board. For more information on how to determine and obtain the latest level BIOS, see "BIOS levels" on page 111. v If multiple error codes are displayed, diagnose the first error code displayed. v If the computer hangs with a POST error, go to Chapter 7, "Symptom-to-FRU Index," on page 69. v If the computer hangs and no error is displayed, go to "Undetermined problems" on page 108. v If an installed device is not recognized by the diagnostics program, that device might be defective. 001 1. Power-off the computer and all external devices. 2. Check all cables and power cords. 3. Make sure the system board is seated properly. 4. Set all display controls to the middle position. 5. Power-on all external devices. 6. Power-on the computer. 7. Check for the following response: v Readable instructions or the Main Menu. DID YOU RECEIVE THE CORRECT RESPONSE? If NO, continue to 002 . If YES, proceed to 003 . 002 If the Power Management feature is enabled, do the following: 1. Start the IBM Setup Utility program (see Chapter 5, "IBM Setup Utility program," on page 21). 2. Select Power Management from the IBM Setup Utility program menu. 3. Select APM. 4. Be sure APM BIOS Mode is set to Disabled. If it is not, press Left Arrow (←) or Right Arrow (→) to change the setting. 5. Select Automatic Hardware Power Management. 6. Set Automatic Hardware Power Management to Disabled. 7. If the problem persists, continue to 003 . 12 Hardware Maintenance Manual

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Notes:
v
Type
2296,
8191,
8198,
8199,
8316,
and
8434
computers
default
to
come
up
quiet
(no
beep
and
no
memory
count
and
checkpoint
code
display)
when
no
errors
are
detected
by
POST.
v
To
enable
beep
and
memory
count
and
checkpoint
code
display
when
a
successful
POST
occurs,
do
the
following:
1.
Select
Start
Options
in
the
IBM
Setup
Utility
program
(see
Chapter
5,
“IBM
Setup
Utility
program,”
on
page
21).
2.
Set
Power-On
Self-Test
to
Enhanced
.
v
Before
replacing
any
FRUs,
ensure
that
the
latest
level
of
BIOS
is
installed
on
the
system.
A
down-level
BIOS
might
cause
false
errors
and
unnecessary
replacement
of
the
system
board.
For
more
information
on
how
to
determine
and
obtain
the
latest
level
BIOS,
see
“BIOS
levels”
on
page
111.
v
If
multiple
error
codes
are
displayed,
diagnose
the
first
error
code
displayed.
v
If
the
computer
hangs
with
a
POST
error,
go
to
Chapter
7,
“Symptom-to-FRU
Index,”
on
page
69.
v
If
the
computer
hangs
and
no
error
is
displayed,
go
to
“Undetermined
problems”
on
page
108.
v
If
an
installed
device
is
not
recognized
by
the
diagnostics
program,
that
device
might
be
defective.
±001²
1.
Power-off
the
computer
and
all
external
devices.
2.
Check
all
cables
and
power
cords.
3.
Make
sure
the
system
board
is
seated
properly.
4.
Set
all
display
controls
to
the
middle
position.
5.
Power-on
all
external
devices.
6.
Power-on
the
computer.
7.
Check
for
the
following
response:
v
Readable
instructions
or
the
Main
Menu.
DID
YOU
RECEIVE
THE
CORRECT
RESPONSE?
If
NO,
continue
to
±002²
.
If
YES,
proceed
to
±003²
.
±002²
If
the
Power
Management
feature
is
enabled,
do
the
following:
1.
Start
the
IBM
Setup
Utility
program
(see
Chapter
5,
“IBM
Setup
Utility
program,”
on
page
21).
2.
Select
Power
Management
from
the
IBM
Setup
Utility
program
menu.
3.
Select
APM
.
4.
Be
sure
APM
BIOS
Mode
is
set
to
Disabled
.
If
it
is
not,
press
Left
Arrow
(
←
)
or
Right
Arrow
(
→
)
to
change
the
setting.
5.
Select
Automatic
Hardware
Power
Management
.
6.
Set
Automatic
Hardware
Power
Management
to
Disabled
.
7.
If
the
problem
persists,
continue
to
±003²
.
12
Hardware
Maintenance
Manual