IBM 8872 Service Guide - Page 142

PCI-X, board, assembly

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5. Use the thermal-grease syringe to place 16 uniformly spaced dots of 0.01 mL each on the top of the microprocessor. Note: 0.01mL is one tick mark on the syringe. If the grease is properly applied, approximately half (0.22 mL) of the grease will remain in the syringe. 6. Install the heat sink onto the microprocessor as described in "Removing and installing a microprocessor" on page 122. PCI-X board assembly To remove the PCI-X board assembly, complete the following steps: Handle Retainer screws DCAC 1. Read the safety information that begins on page vii and "Installation guidelines" on page 99. 2. Turn off the server and peripheral devices, and disconnect the power cords and all external cables necessary to replace the device. 3. Remove the top cover and bezel (see "Top cover and bezel" on page 113). 4. Remove the power supplies and power-structure assembly (see "Power-supply structure" on page 119). 5. Remove the I/O board (see "I/O board" on page 115). 6. Remove all adapters and adapter dividers, and place the adapters on a static-protective surface. Note: You might find it helpful to note where each adapter is installed before removing the adapters. 7. Remove the card guide (see "PCI-X adapter guide" on page 118). 126 IBM xSeries 460 Type 8872 and xSeries MXE 460 Type 8874: Problem Determination and Service Guide

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5.
Use
the
thermal-grease
syringe
to
place
16
uniformly
spaced
dots
of
0.01
mL
each
on
the
top
of
the
microprocessor.
Note:
0.01mL
is
one
tick
mark
on
the
syringe.
If
the
grease
is
properly
applied,
approximately
half
(0.22
mL)
of
the
grease
will
remain
in
the
syringe.
6.
Install
the
heat
sink
onto
the
microprocessor
as
described
in
“Removing
and
installing
a
microprocessor”
on
page
122.
PCI-X
board
assembly
To
remove
the
PCI-X
board
assembly,
complete
the
following
steps:
Handle
Retainer
screws
1.
Read
the
safety
information
that
begins
on
page
vii
and
“Installation
guidelines”
on
page
99.
2.
Turn
off
the
server
and
peripheral
devices,
and
disconnect
the
power
cords
and
all
external
cables
necessary
to
replace
the
device.
3.
Remove
the
top
cover
and
bezel
(see
“Top
cover
and
bezel”
on
page
113).
4.
Remove
the
power
supplies
and
power-structure
assembly
(see
“Power-supply
structure”
on
page
119).
5.
Remove
the
I/O
board
(see
“I/O
board”
on
page
115).
6.
Remove
all
adapters
and
adapter
dividers,
and
place
the
adapters
on
a
static-protective
surface.
Note:
You
might
find
it
helpful
to
note
where
each
adapter
is
installed
before
removing
the
adapters.
7.
Remove
the
card
guide
(see
“PCI-X
adapter
guide”
on
page
118).
126
IBM
xSeries
460
Type
8872
and
xSeries
MXE
460
Type
8874:
Problem
Determination
and
Service
Guide