Lenovo B50-30 All-in-One - Manual (Page 49)

• Hard disk drive power cable
• Power switch board cable
• Speaker system cable
• Camera cable
• LVDS cable
Step 17. Remove the seven screws that secure the motherboard to the chassis and lift the motherboard
up to remove it.
Step 18. To install the new motherboard:
a. Line up the holes on the new motherboard with the mounting holes chassis and place the new
motherboard into position.
b. Use the screws to secure the new motherboard to the chassis.
c. Connect all the cables to the new motherboard.
Step 19. Install the following parts to the new motherboard:
• Wi-Fi card
• TV-Tuner card
• CPU
• Heat-sink
• Memory module
• TV-Tuner antenna jack
Step 20. Reattach the EMI cover, middle cover, optical drive, stand holder, foot cover and stand base.
Removing the rear deco
Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover.
Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo
recommends that you use a blanket, towel, or other soft cloth to protect the computer screen from scratches
or other damage.
To remove the rear deco:
Chapter 7 . Replacing hardware 43