IBM 240 manual Problem, Dos

Ÿ A bootable diskette is in the diskette drive.

If you still have a problem, check the boot sequence in the BIOS setup util

Chapter 4. Solving computer problems91

Ÿ The hard disk drive is correctly installed.

Troubleshooting charts

Problem

Action

The DOS full-screen

If

you use

a DOS

application

that

supports

only the

640x480

resolution

(VGA

looks smaller.

mode),

the screen

image

might

look

slightly

distorted

or

might

appear smaller th

the display size. This is to maintain compatibility with

other

DOS

applications.

expand

the screen image to the same size as the

actual

screen,

start

the

ThinkPad

Configuration

program

and LCDclick

;

then

selectScreen

the

expansion

function. (The image might look slightly distorted.)

Critical low-battery errorThe

computer

powered

off,

because

the

battery

is

low.

Connect

the

AC

Adapter

to

the

computer and

charge

the

battery

pack,

or

repla

the

battery pack with a fully charged one.

Hibernation error

The

system

configuration

differs

between

the

time

your

computer

entered

hibernation mode and the time it exited

this

mode,

and

your

computer

cannot

resume

normal

operation.

ŸChange the system configuration to what it was before your computer entere hibernation mode.

ŸIf the memory size was changed, re-create the hibernation file.

Operating system not Verify the following: found