Lenovo Storage N3310 (English) User Guide and Hardware Maintenance Manual - Le - Page 87

method to avoid any possible damage to the system board., from the heat sink.

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6. If you are replacing a heat sink, remove the four screws that secure the heat sink to the system board. It is recommended that you carefully remove the four screws from the system board using the following method to avoid any possible damage to the system board. a. Partially remove screw 1 , then completely remove screw 3 , and then return to screw 1 and completely remove it. b. Partially remove screw 2 , then completely remove screw 4 , and then return to screw 2 and completely remove it. Note: The four screws are integrated parts of the heat sink. Do not try to remove the four screws from the heat sink. 1 2 4 3 Figure 42. Removing the heat sink 7. Gently twist the heat sink to free it from the microprocessor and then lift the heat sink off the system board. 8. Lay aside the old heat sink. Touch the static-protective package that contains the new heat sink to any unpainted surface on the outside of the storage product. Then, take the new heat sink out of the package. Notes: • If you are replacing a heat sink, use a cleaning pad that might come with the new heat sink to wipe the thermal grease from the top of the microprocessor before installing the new heat sink. Dispose of the cleaning pad after all of the thermal grease is removed from the microprocessor. • When handling the new heat sink, do not touch the thermal grease on the bottom of it. 9. Remove any protective cover that protects the thermal grease on the bottom of the new heat sink. Then, place the new heat sink on the system board so that the four screws on the new heat sink are aligned with the corresponding mounting studs on the system board. Chapter 6. Replacing hardware 73

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6.Ifyouarereplacingaheatsink,removethefourscrewsthatsecuretheheatsinktothesystemboard.It
isrecommendedthatyoucarefullyremovethefourscrewsfromthesystemboardusingthefollowing
method to avoid any possible damage to the system board.
a. Partially remove screw
1
, then completely remove screw
3
, and then return to screw
1
and
completely remove it.
b. Partially remove screw
2
, then completely remove screw
4
, and then return to screw
2
and
completely remove it.
Note:
The four screws are integrated parts of the heat sink. Do not try to remove the four screws
from the heat sink.
1
2
3
4
Figure42.Removingtheheatsink
7. Gently twist the heat sink to free it from the microprocessor and then lift the heat sink off the system
board.
8. Lay aside the old heat sink. Touch the static-protective package that contains the new heat sink to
any unpainted surface on the outside of the storage product. Then, take the new heat sink out of
the package.
Notes:
• If you are replacing a heat sink, use a cleaning pad that might come with the new heat sink to wipe
thethermalgreasefromthetopofthemicroprocessorbeforeinstallingthenewheatsink.Disposeof
thecleaningpadafterallofthethermalgreaseisremovedfromthemicroprocessor.
• When handling the new heat sink, do not touch the thermal grease on the bottom of it.
9.Removeanyprotectivecoverthatprotectsthethermalgreaseonthebottomofthenewheatsink.Then,
placethenewheatsinkonthesystemboardsothatthefourscrewsonthenewheatsinkarealigned
with the corresponding mounting studs on the system board.
Chapter 6
.
Replacing hardware
73