IBM 8478 Hardware Maintenance Manual - Page 29

Installing

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1 2 3 CMOS jumper (JBAT1) 3 2 1 Boot block jumper (JROM1) 3. Move the JROM1 jumper to the alternate position (pins 1 and 2) to enable the BIOS recovery mode. 4. Reinstall the side cover, see "Installing the cover" on page 70. 5. Reconnect all external cables and power cords and turn on the peripheral devices. 6. Insert the BIOS flash diskette in the diskette drive. 7. Restart the server. The BIOS begins the power-on self-test. 8. Select 1 - Update POST/BIOS from the menu that contains various flash (update) options. 9. When prompted as to whether you want to save the current code to a diskette, select N. 10. When prompted to choose a language, select a language (from 0 to 7) and press Enter to accept your choice. 11. Do not restart your server at this time. 12. Remove the BIOS flash diskette from the diskette drive. 13. Turn off the server and peripheral devices and disconnect all external cables and power cords; then, remove the side cover, see "Removing the side cover" on page 46. 14. Move the JROM1 jumper to the normal position (pins 2 and 3) to return to normal startup mode. 15. Reinstall the side cover, see "Installing the cover" on page 70. Chapter 3. Diagnostics 19

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CMOS jumper
(JBAT1)
Boot block jumper
(JROM1)
1
1
2
2
3
3
3.
Move
the
JROM1
jumper
to
the
alternate
position
(pins
1
and
2)
to
enable
the
BIOS
recovery
mode.
4.
Reinstall
the
side
cover,
see
“Installing
the
cover”
on
page
70.
5.
Reconnect
all
external
cables
and
power
cords
and
turn
on
the
peripheral
devices.
6.
Insert
the
BIOS
flash
diskette
in
the
diskette
drive.
7.
Restart
the
server.
The
BIOS
begins
the
power-on
self-test.
8.
Select
1
-
Update
POST/BIOS
from
the
menu
that
contains
various
flash
(update)
options.
9.
When
prompted
as
to
whether
you
want
to
save
the
current
code
to
a
diskette,
select
N
.
10.
When
prompted
to
choose
a
language,
select
a
language
(from
0
to
7)
and
press
Enter
to
accept
your
choice.
11.
Do
not
restart
your
server
at
this
time.
12.
Remove
the
BIOS
flash
diskette
from
the
diskette
drive.
13.
Turn
off
the
server
and
peripheral
devices
and
disconnect
all
external
cables
and
power
cords;
then,
remove
the
side
cover,
see
“Removing
the
side
cover”
on
page
46.
14.
Move
the
JROM1
jumper
to
the
normal
position
(pins
2
and
3)
to
return
to
normal
startup
mode.
15.
Reinstall
the
side
cover,
see
“Installing
the
cover”
on
page
70.
Chapter
3.
Diagnostics
19