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9.
Carefully
install
the
memory-board
assembly.
See
“Memory
board”
on
page
115
for
instructions.
Processor-board
VRM
Before
you
begin:
v
Read
“Installation
guidelines”
on
page
77.
v
Read
the
safety
notices
at
“Safety
notices
(multilingual
translations)”
on
page
201.
v
Read
“Handling
static-sensitive
devices”
on
page
200.
To
remove
a
VRM
from
the
processor
board,
complete
the
following
steps:
1.
Turn
off
the
server
(see
“Turning
off
the
server”
on
page
8),
and
disconnect
all
power
cords
and
external
cables.
2.
Pull
open
the
memory-board
retaining
latches,
and
remove
the
memory-board
assembly.
See
“Memory
board”
on
page
115
for
details.
3.
Remove
the
shipping
thumbscrews
from
the
right
side
of
the
server,
and
lift
the
retention
bracket
from
the
server.
4.
Remove
the
processor-board
assembly.
See
“Processor-board
assembly”
on
page
119.
5.
Pull
the
VRM-retention
latches
apart,
and
lift
the
VRM
out
of
the
processor-board
VRM
connector.
To
replace
the
processor-board
VRM,
complete
the
following
steps:
1.
Turn
off
the
server
(see
“Turning
off
the
server”
on
page
8),
and
disconnect
all
power
cords
and
external
cables.
2.
Remove
the
memory-board
assembly.
See
“Memory
board”
on
page
115
for
details.
3.
Remove
the
shipping
thumbscrews
from
the
right
side
of
the
server,
and
lift
the
retention
bracket
from
the
server.
4.
Remove
the
processor-board
assembly.
See
“Processor-board
assembly”
on
page
119.
5.
Open
the
retaining
clip
on
each
end
of
the
VRM
connector.
6.
Touch
the
static-protective
package
containing
the
VRM
to
any
unpainted
metal
surface
on
the
server.
Then,
remove
the
VRM
from
the
package.
122
IBM
xSeries
450
Type
8688:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide