Lenovo ThinkPad X40 (Greek) Service and Troubleshooting Guide for the ThinkPad - Page 51

Problem, Solution, Maximum, Performance, Automatic, Battery, Optimized

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Solving computer problems Also make sure that the device from which the computer starts is enabled. In the startup menu in the BIOS Setup Utility, make sure that the device is included in the ″Boot priority order″ list. If it is included in the ″Excluded from boot order″ list, it is disabled. Select the entry for it in the list and press the x key. This moves the entry to the ″Boot priority order″ list. Problem: The computer does not respond. Solution: IRQs for the PCI are all set as 11. The computer does not respond because it cannot share the IRQ with other devices. Refer to the ThinkPad Configuration Program. Problem: The computer can not play a CD, or the sound quality is not good. Solution: Be sure that the disk meets the standards for your country. Usually, a disk that meets the local standards is marked with a CD logo on the label. If you use a disc that does not meet these standards, we cannot guarantee that it will play, or that, if it does play, the sound quality will be good. Problem: Playback of DVD is not smooth in Windows 2000. Solution: If you select the Maximum Battery mode for the Intel SpeedStep™ technology, this problem may occur. This mode is designed to achieve maximum battery life by switching the processor speed between the regular low speed and half of that speed, depending on how much the processor is used. If the use increases, Intel SpeedStep switches the processor speed to the lower speed. Operation in this mode can severely degrade the performance of the processor, and thus cause the playback of a DVD to be jerky. To avoid or reduce this problem, you can choose any of three other modes of operation, as follows: v Maximum Performance: Keeps the processor speed high at all times. v Automatic: Switches the processor speed between high and low, depending on how much the processor is used. If the use increases, Intel SpeedStep switches the processor speed to high. v Battery Optimized Performance: Keeps the processor speed low at all times. Chapter 2. Solving computer problems 29

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Also
make
sure
that
the
device
from
which
the
computer
starts
is
enabled.
In
the
startup
menu
in
the
BIOS
Setup
Utility,
make
sure
that
the
device
is
included
in
the
″
Boot
priority
order
″
list.
If
it
is
included
in
the
″
Excluded
from
boot
order
″
list,
it
is
disabled.
Select
the
entry
for
it
in
the
list
and
press
the
x
key.
This
moves
the
entry
to
the
″
Boot
priority
order
″
list.
Problem:
The
computer
does
not
respond.
Solution:
IRQs
for
the
PCI
are
all
set
as
11.
The
computer
does
not
respond
because
it
cannot
share
the
IRQ
with
other
devices.
Refer
to
the
ThinkPad
Configuration
Program.
Problem:
The
computer
can
not
play
a
CD,
or
the
sound
quality
is
not
good.
Solution:
Be
sure
that
the
disk
meets
the
standards
for
your
country.
Usually,
a
disk
that
meets
the
local
standards
is
marked
with
a
CD
logo
on
the
label.
If
you
use
a
disc
that
does
not
meet
these
standards,
we
cannot
guarantee
that
it
will
play,
or
that,
if
it
does
play,
the
sound
quality
will
be
good.
Problem:
Playback
of
DVD
is
not
smooth
in
Windows
2000.
Solution:
If
you
select
the
Maximum
Battery
mode
for
the
Intel
SpeedStep
™
technology,
this
problem
may
occur.
This
mode
is
designed
to
achieve
maximum
battery
life
by
switching
the
processor
speed
between
the
regular
low
speed
and
half
of
that
speed,
depending
on
how
much
the
processor
is
used.
If
the
use
increases,
Intel
SpeedStep
switches
the
processor
speed
to
the
lower
speed.
Operation
in
this
mode
can
severely
degrade
the
performance
of
the
processor,
and
thus
cause
the
playback
of
a
DVD
to
be
jerky.
To
avoid
or
reduce
this
problem,
you
can
choose
any
of
three
other
modes
of
operation,
as
follows:
v
Maximum
Performance:
Keeps
the
processor
speed
high
at
all
times.
v
Automatic:
Switches
the
processor
speed
between
high
and
low,
depending
on
how
much
the
processor
is
used.
If
the
use
increases,
Intel
SpeedStep
switches
the
processor
speed
to
high.
v
Battery
Optimized
Performance:
Keeps
the
processor
speed
low
at
all
times.
Solving
computer
problems
Chapter
2.
Solving
computer
problems
29