IBM 8862 Hardware Maintenance Manual - Page 78

Microprocessor, assembly, board, connectors, jumpers, removal

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Page 78 highlights

Microprocessor tray assembly This section shows the locations of items on the microprocessor board and describes how to remove a microprocessor. Microprocessor board connectors, jumpers and LEDs The following illustration shows the connectors, jumpers, and LEDs on the microprocessor board. Force power-on jumper (J10) Microprocessor 3 VRM error LED Light-path diagnostics button Microprocessor 4 VRM error LED Microprocessor 3 VRM connector Microprocessor 4 VRM connector Microprocessor 1 socket Microprocessor 1 error LED Microprocessor 2 error LED Microprocessor 4 socket Light-path test LED Microprocessor 4 error LED Microprocessor 3 socket Microprocessor 2 socket Microprocessor 3 error LED The microprocessor board contains the force power-on jumper (J10), a three-pin jumper block. The default position is pins 1 and 2. Move the jumper to pins 2 and 3 to force the server to start up when you connect the server to ac power. Microprocessor removal This section contains information about removing a microprocessor. Note: v v v Read "Installation guidelines" on page 29. Read "Safety information" on page 147. Read "Handling static-sensitive devices" on page 30. Complete the following steps to remove a microprocessor: 1. Turn off the server and all peripheral devices; then, disconnect all power cords and external cables. 2. Remove the top cover (see "Removing the cover and bezel" on page 32). 3. Remove all fans. 4. Remove the memory cassette. 5. Lift the microprocessor-tray release latch. 6. Remove the microprocessor tray assembly (see "Installing a microprocessor" on page 44). 68 IBM xSeries 365 Types 8861, 8862: Hardware Maintenance Manual and Troubleshooting Guide

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Microprocessor
tray
assembly
This
section
shows
the
locations
of
items
on
the
microprocessor
board
and
describes
how
to
remove
a
microprocessor.
Microprocessor
board
connectors,
jumpers
and
LEDs
The
following
illustration
shows
the
connectors,
jumpers,
and
LEDs
on
the
microprocessor
board.
Light-path
diagnostics button
Light-path
test LED
Microprocessor 4
VRM error LED
Microprocessor 3
VRM error LED
Microprocessor 4
VRM connector
Microprocessor 3
VRM connector
Microprocessor 4
socket
Microprocessor 3
socket
Microprocessor 2
socket
Microprocessor 1
socket
Microprocessor 1
error LED
Microprocessor 4
error LED
Microprocessor 2
error LED
Microprocessor 3
error LED
Force power-on
jumper (J10)
The
microprocessor
board
contains
the
force
power-on
jumper
(J10),
a
three-pin
jumper
block.
The
default
position
is
pins
1
and
2.
Move
the
jumper
to
pins
2
and
3
to
force
the
server
to
start
up
when
you
connect
the
server
to
ac
power.
Microprocessor
removal
This
section
contains
information
about
removing
a
microprocessor.
Note:
v
Read
“Installation
guidelines”
on
page
29.
v
Read
“Safety
information”
on
page
147.
v
Read
“Handling
static-sensitive
devices”
on
page
30.
Complete
the
following
steps
to
remove
a
microprocessor:
1.
Turn
off
the
server
and
all
peripheral
devices;
then,
disconnect
all
power
cords
and
external
cables.
2.
Remove
the
top
cover
(see
“Removing
the
cover
and
bezel”
on
page
32).
3.
Remove
all
fans.
4.
Remove
the
memory
cassette.
5.
Lift
the
microprocessor-tray
release
latch.
6.
Remove
the
microprocessor
tray
assembly
(see
“Installing
a
microprocessor”
on
page
44).
68
IBM
xSeries
365
Types
8861,
8862:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide