Lenovo Computer ThinkCentre M900 10M6

Read and understand the 'Read this first: Important safety information' on page iii

Remove any media from the drives and turn off all connected devices and the computer

Disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer

Remove the storage drive bracket

Disconnect the Wi-Fi antenna cables from the Wi-Fi card

Remove the screw that secures the Wi-Fi card

Pull the Wi-Fi card out of the M.2 Wi-Fi card slot

Remove any media from the drives and turn off all connected devices and the computer.

Disconnect all power cords from electrical outlets and disconnect all cables connected to the computer.

Disconnect the internal speaker cable from the internal speaker connector on the system board.

Release the two tabs securing the internal speaker and lift the internal speaker out of the holder.

Read and understand the 'Read this first: Important safety information' on page iii

Remove any media from the drives and turn off all connected devices and the computer

Disconnect all power cords from electrical outlets and disconnect all cables connected to the computer

Remove the storage drive bracket

Locate the memory module to replace

Open the retaining clips and gently pull the memory module out of the memory slot

Insert the notched end of the new memory module into the slot and press firmly until it snaps into place

Ensure the memory module is secured in the slot and does not move easily

Pre-replacement Safety Measures

Read and understand the 'Read this first: Important safety information' on page iii.

Remove any media from the drives and turn off all connected devices and the computer.

Disconnect all power cords from electrical outlets and disconnect all cables connected to the computer.

Replacing the 2.5-inch Storage Drive

Remove the computer cover. See 'Removing the computer cover' on page 77.

Locate the 2.5-inch storage drive. See 'Computer components' on page 5.

Is there a front Wi-Fi antenna installed?

Disconnect the front Wi-Fi antenna cable from the Wi-Fi card if applicable.

Pre-replacement Safety and Preparation

Read and understand the 'Read this first: Important safety information' on page iii.

Ensure a 90-watt power adapter is available for M700 and M900 models.

Verify the I/O box compatibility

Remove all media from the drives.

Turn off all attached devices and the computer.

Disconnect all power cords from electrical outlets.

Disconnect all cables connected to the computer.