Lenovo H50-55 Lenovo H50 Series Hardware Maintenance Manual - Page 47

Replacingtheheat-sinkassembly

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Step 6. To install the new graphic card: a. Install the new adapter into the same adapter connector. b. Reattach the metal bracket back into position and secure the graphic card to the chassis with the screw. Step 7. Reattach the computer cover. Replacing the heat-sink assembly Note: For this procedure, it helps to lay the computer flat. To replace the heat-sink: Step 1. Step 2. Step 3. Step 4. 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. Unplug all power cords from electrical outlets. 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. Remove the computer cover. Refer to "Removing the computer cover". Chapter 8. Replacing hardware 41

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Step 6.
To install the new graphic card:
a.
Install the new adapter into the same adapter connector.
b.
Reattach the metal bracket back into position and secure the graphic card to the chassis
with the screw.
Step 7.
Reattach the computer cover.
Replacingtheheat-sinkassembly
Note:
For this procedure, it helps to lay the computer flat.
To replace the heat-sink:
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”.
Chapter 8
.
Replacing hardware
41