Lenovo 3000 J Series Manual

10.   
 Lift the small handle 
3 and open the retainer 
1. 
 
 
   
11 . 
 
 Lift the microprocessor 
2 straight up and out of the system board socket.
 
 
 
Notes:   
a. 
 
 Your microprocessor and socket might look different than the one 
illustrated. 
b. 
 
 Note the orientation of the notches on the microprocessor. This is 
important when reinstalling the microprocessor on the new system board. 
This is important when reinstalling the microprocessor on the new system 
board. 
c. 
 
 Do not drop...

cover and place it on the microprocessor socket of the failing system 
board when you complete this procedure. 
13.   
 Holding the microprocessor with your fingers, position the microprocessor so 
that the notches on the microprocessor are aligned with the tabs in the 
microprocessor socket on the new system board. 
 
 
Important 
To avoid damaging the microprocessor contacts, do not tilt the 
microprocessor when installing it into the socket.
14.   
 Lower the microprocessor straight down into the...

Replacing the system board (Types 7387, 7388, and 7389) 
 
1.   
 Remove only the left-side cover. See “Removing the covers” on page 84. 
 
2.   
 Lay the computer on the right side to make the system board accessible. 
 
3.   
 Remove any adapter cards installed in the PCI connectors. See “Replacing a 
PCI adapter” on page 91. 
 
4.   
 Carefully take note of the location of all cable connections on the system 
board and disconnect all cables. See “Identifying parts on the system board” 
on page 87....

11 .   
 Lift the small handle 
1. 
 
 
   
12. 
 
 Lift the microprocessor 
2 straight up and out of the socket. 
 
 
 
Notes:   
a. 
 
 Your microprocessor and socket might look different than the one 
illustrated. 
b. 
 
 Note the orientation of the microprocessor in the socket. Look for the small 
triangle on one corner of the microprocessor. This is important when 
reinstalling the microprocessor on the new system board. 
c. 
 
 Do not drop anything onto the microprocessor socket while it is...

13.   
 Holding the microprocessor with your fingers, position the microprocessor so 
that the small triangle 
1 is aligned with the corresponding triangle on the 
socket. 
 
 
   
14. 
 
 Lower the microprocessor straight down into the socket.
 
 
   
15. 
 
 Lower and latch the handle to secure the microprocessor in the socket. 
16. 
 
 Install the retention module that was removed from the rear of the failing 
system board on the new system board. 
17. 
 
 Install the heat sink and fan assembly on...

Replacing the microprocessor (Types 7393, 7394, and 7395) 
Note:   A thermal grease syringe is required to complete the microprocessor 
installation. Make sure the grease syringe is available before beginning the 
procedure. The FRU number for the thermal grease is 91P8835. 
 
1.   
 Remove the left-side cover. See “Removing the covers” on page 84. 
 
2.   
 Lay the computer on the right side to make the system board and 
microprocessor accessible. 
 
3.   
 Disconnect the heat sink and fan assembly...

6.   
 Lift the small handle 
3 and open the retainer 
1. 
 
 
 
 
 
Important 
Touch only the sides of the microprocessor. Do not touch the gold 
contacts on the bottom.
 7.   
 Lift the microprocessor 
2 straight up and out of the socket. 
 
 
 
 
Chapter 8. Replacing FRUs (Types 7387, 7388, 7389, 7393, 7394, and 7395) 101 

Notes:   
a. 
 
 Note the orientation of the notches 
1 on the microprocessor. This is 
important when reinstalling the microprocessor on the new system board. 
 
 
   
b. 
 
 Do not drop anything onto the microprocessor socket while it is exposed. 
The socket pins must be kept as clean as possible.
 8. 
 
 Holding the microprocessor with your fingers, remove the protective cover 

2 that protects the gold contacts on the new microprocessor 
1 .
 
 
   
 
9.   
 Make sure that the microprocessor...

12.   
 Use the thermal grease syringe to place five drops of grease on the top of the 
microprocessor. Each drop of grease should be 0.03ml (3 tick marks on the 
grease syringe).
 
 
   
13. 
 
 Install the heat sink and fan assembly on the system board. 
14. 
 
 Connect the heat sink and fan assembly cable to the system board. See 
“Identifying parts on the system board” on page 87. 
15. 
 
 Go to “Completing the FRU replacement” on page 112.
 
 
Chapter 8. Replacing FRUs (Types 7387, 7388, 7389, 7393,...

Replacing the microprocessor (Types 7387, 7388, and 7389) 
 
1.   
 Remove the left-side cover. See “Removing the covers” on page 84. 
 
2.   
 Lay the computer on the right side to make the system board and 
microprocessor accessible. 
 
3.   
 Disconnect the heat sink and fan assembly cable from the system board. See 
“Identifying parts on the system board” on page 87. 
 
4.   
 
 Rotate handle 
1 to release the heat sink clamp and then disengage the 
clamp from the plastic retention bracket....