7.
Reinstall the DIMM air baffle, if one was removed (see “Replacing the DIMM
air baffle” on page 271).
8.
Reconnect any cables that your disconnected from the adapters or system
board.
Thermal grease:
The thermal grease must be replaced whenever the heat sink has been removed
from the top of the microprocessor and is going to be reused or when debris is
found in the grease.
When you are installing the heat sink on the same microprocessor that is was
removed from, make sure that the following requirements are met:
v
The thermal grease on the heat sink and microprocessor is not contaminated.
v
Additional thermal grease is not added to the existing thermal grease on the
heat sink and microprocessor.
Note:
v
Read the Safety information on page “Safety” on page vii.
v
Read the “Installation guidelines” on page 261.
v
Read “Handling static-sensitive devices” on page 263.
To replace damaged or contaminated thermal grease on the microprocessor and
heat sink, complete the following steps:
1.
Place the heat sink on a clean work surface.
2.
Remove the cleaning pad from its package and unfold it completely.
3.
Use the cleaning pad to wipe the thermal grease from the bottom of the heat
sink.
Note:
Make sure that all of the thermal grease is removed.
4.
Use a clean area of the cleaning pad to wipe the thermal grease from the
microprocessor; then, dispose of the cleaning pad after all of the thermal grease
is removed.
Microprocessor
0.02 mL of thermal
grease
5.
Use the thermal-grease syringe to place 9 uniformly spaced dots of 0.02 mL
each on the top of the microprocessor. The outermost dots must be within
approximately 5 mm of the edge of the microprocessor; this is to ensure
uniform distribution of the grease.
356
System x3690 X5 Types 7147, 7148, 7149, and 7192: Problem Determination and Service Guide
Summary of Contents for System x3690 X5
Page 1: ...System x3690 X5 Types 7147 7148 7149 and 7192 Problem Determination and Service Guide...
Page 2: ......
Page 3: ...System x3690 X5 Types 7147 7148 7149 and 7192 Problem Determination and Service Guide...
Page 8: ...vi System x3690 X5 Types 7147 7148 7149 and 7192 Problem Determination and Service Guide...
Page 13: ...Safety statements Safety xi...
Page 22: ...4 System x3690 X5 Types 7147 7148 7149 and 7192 Problem Determination and Service Guide...
Page 266: ...248 System x3690 X5 Types 7147 7148 7149 and 7192 Problem Determination and Service Guide...
Page 278: ...260 System x3690 X5 Types 7147 7148 7149 and 7192 Problem Determination and Service Guide...
Page 386: ...368 System x3690 X5 Types 7147 7148 7149 and 7192 Problem Determination and Service Guide...
Page 407: ...1 2 Chapter 5 Removing and replacing components 389...
Page 444: ...426 System x3690 X5 Types 7147 7148 7149 and 7192 Problem Determination and Service Guide...
Page 454: ...436 System x3690 X5 Types 7147 7148 7149 and 7192 Problem Determination and Service Guide...
Page 461: ...weight of memory enclosure 28 Index 443...
Page 462: ...444 System x3690 X5 Types 7147 7148 7149 and 7192 Problem Determination and Service Guide...
Page 463: ......
Page 464: ...Part Number 47C8865 Printed in USA 1P P N 47C8865...