Lenovo H535 Lenovo H505/520/535 Hardware Maintenance Manual - Page 47

Replacing an AMD CPU, For this procedure, it helps to lay the computer flat.

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Step 7. Holding the sides of the microprocessor with your fingers, remove the protective cover 1 that protects the gold contacts on the new microprocessor. 2 Step 8. Holding the sides of the microprocessor with your fingers, position the microprocessor so that the notches on the microprocessor are aligned with the tabs in the microprocessor socket. Important: To avoid damaging the microprocessor contacts, keep the microprocessor completely level while installing it into the socket. Step 9. Lower the microprocessor straight down into its socket on the motherboard. Step 10. To secure the microprocessor in the socket, close the microprocessor retainer and lock it into position with the small handle. Step 11. Use a thermal grease syringe to place 5 drops of grease on the top of the microprocessor. Each drop of grease should be 0.03ml (3 tick marks on the grease syringe). Step 12. Reattach the heat-sink assembly and the computer cover. Replacing an AMD CPU Note: For this procedure, it helps to lay the computer flat. To replace the CPU Step 1. Remove any media (disks, CDs, DVDs, or memory cards) from the drives, shut down the operating system, and turn off the computer and all attached devices. Step 2. Unplug all power cords from electrical outlets. Chapter 8. Replacing hardware 41

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Step 7.
Holding the sides of the microprocessor with your fingers, remove the protective cover
1
that
protects the gold contacts on the new microprocessor.
2
Step 8.
Holding the sides of the microprocessor with your fingers, position the microprocessor so that the
notches on the microprocessor are aligned with the tabs in the microprocessor socket.
Important:
To avoid damaging the microprocessor contacts, keep the microprocessor completely level
while installing it into the socket.
Step 9.
Lower the microprocessor straight down into its socket on the motherboard.
Step 10. To secure the microprocessor in the socket, close the microprocessor retainer and lock it into
position with the small handle.
Step 11. Use a thermal grease syringe to place 5 drops of grease on the top of the microprocessor. Each
drop of grease should be 0.03ml (3 tick marks on the grease syringe).
Step 12. Reattach the heat-sink assembly and the computer cover.
Replacing an AMD CPU
Note:
For this procedure, it helps to lay the computer flat.
To replace the CPU
Step 1.
Remove any media (disks, CDs, DVDs, or memory cards) from the drives, shut down the operating
system, and turn off the computer and all attached devices.
Step 2.
Unplug all power cords from electrical outlets.
Chapter 8
.
Replacing hardware
41