IBM 6643 Personal Computer User Manual


 
v
Sources
for
determining
the
latest
level
BIOS
available
1.
IBM
Home
Page,
Support
http://www.ibm.com/pc/us/
2.
PC
PartnerInfo-Technical
Database
(CTSTIPS.NSF)
3.
IBM
Support
Center
4.
Levels
1
and
2
Support
5.
RETAIN
®
v
Sources
for
obtaining
the
latest
level
BIOS
available
1.
IBM
Home
Page,
Support
http://www.ibm.com/pc/us/
2.
PC
PartnerInfo-Technical
Database
(CTSTIPS.NSF)
3.
Support
Center
4.
Levels
1
and
2
Support
To
update
(flash)
the
BIOS,
see
“Flash
(BIOS/VPD)
update
procedure.”
CMOS
Clear
Procedure
1.
Power-off
the
computer
2.
Unplug
the
power
cord.
3.
Remove
the
rear
bucket
housing.
4.
Remove
the
rear
EMC
shield.
5.
Move
the
CMOS
Clear
jumper
from
pins
1,2
to
pins
2.3
(See
“System
board
layout”
on
page
14).
6.
Power-on
the
computer.
This
will
erase
the
CMOS
information.
7.
Power-off
the
computer.
8.
Unplug
the
power
cord.
9.
Move
the
CMOS
Clear
jumper
from
pins
2,3
back
to
pins
1,2.
10.
Install
the
rear
EMC
shield.
11.
Install
the
rear
bucket
housing.
12.
Power-on
the
computer.
Flash
(BIOS/VPD)
update
procedure
1.
Power-off
the
computer.
2.
Insert
the
flash
update
diskette
into
drive
A.
3.
Power-on
the
computer.
4.
When
the
Update
Utility
appears;
select
the
country/keyboard,
then
press
Enter.
5.
If
the
computer
serial
number
was
previously
recorded,
the
number
is
displayed
with
an
option
to
update
it.
Press
Y
to
update
the
serial
number.
6.
Type
the
7-digit
serial
number
of
the
computer
you
are
servicing,
then
press
Enter.
7.
Follow
the
instructions
on
the
screen
to
complete
the
flash
(BIOS/VPD)
update
procedure.
72
Hardware
Maintenance
Manual