Lenovo 90BX E50-00 Series, Руководство по техническому обслуживанию аппаратной части

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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. 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. Disconnect the microprocessor fan cable from the system board.
Step 6. Remove the 4 screws that secure the heat-sink assembly to the motherboard. 1
Step 7. Lift up the heat-sink to remove it.
Step 8. To install the new heat-sink assembly:
a. Use a 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).
Chapter 8
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Replacing hardware
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