Lenovo 90BX E50-00 Series, Hardware Maintenance Manual

Page: 41 / 49

Step 6. Disconnect the data cables from the connectors on motherboard.
Step 7. Remove the screw that secures the front card reader module to the chassis.
Step 8. Slide out the card reader module out of chassis.
Step 9. Install the new front card reader module:
a. Slide the front card reader module in and secure it with screw.
b. Connect the data cables to the motherboard.
Step 10. Reattach the front bezel, computer cover.
Replacing the motherboard
Note: For this procedure, it helps to lay the computer flat.
To replace the motherboard:
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.
Step 3. Disconnect all cables attached to the computer. This includes power cords, input/output (I/O)
cables, and any other cables that are connected to the computer. Refer to “Left and right view”
and “Rear view” for help with locating the various connectors.
Step 4. Remove the computer cover. Refer to “Removing the computer cover”.
Step 5. Remove the front bezel. Refer to “Removing the front bezel”.
Step 6. Remove the memory module. Refer to “Replacing a memory module”.
Step 7. Remove the heat-sink assembly. Refer to “Replacing the heat-sink assembly”.
Step 8. Remove the graphic card. Refer to “Replacing the graphic card”.
Step 9. Remove the system fan. Refer to “Replacing the system fan”.
Step 10. Disconnect the all cables from the connectors on motherboard.
Chapter 8
.
Replacing hardware
35