Precision 7540 Teardown Removal Guide for Customer Replaceable Units (CRUs)

Pre-removal instructions before removing the access panel:

1. During installation or removals of any hardware, always ensure that all data is backed up properly.

2. Disconnect any telephone, network, or USB cables from the computer.

3. Disconnect the computer and all attached devices from their electrical outlets.

4.  

Loosen the seven (7) captive screws securing the access panel cover to the base [1]. Pry open the cover starting at the two (2) recess points along the top edge [2]. Work along the sides of the computer [3].

Lift the panel off the computer [4].

Pre-removal instructions before removing the battery:

1. During installation or removals of any hardware, always ensure that all data is backed up properly.

2. Disconnect any telephone, network, or USB cables from the computer.

3. Disconnect the computer and all attached devices from their electrical outlets.

4. Remove the System Cover.

For the 6-Cell Battery, disconnect the battery cable from the connector under the memory to the left of the battery [1]. Remove the three (3) screws along the top edge of the battery [2] and remove the battery from the computer [3].

For the 4-Cell Battery, disconnect the battery cable from the connector on the left corner of the battery [1]. Remove the two (2) screws along the top edge of the battery [2] and remove the battery from the computer [3].

Pre-removal instructions before removing the micro-SD card:

1. During installation or removals of any hardware, always ensure that all data is backed up properly.

2. Disconnect any telephone, network, or USB cables from the computer.

3. Disconnect the computer and all attached devices from their electrical outlets.

Push the seated micro-SD card further into the reader, it pops out far enough for you to get a grip of it.

Pull the micro-SD card fully out of the slot and computer.

Pre-removal instructions before removing the cellular SIM card:

1. During installation or removals of any hardware, always ensure that all data is backed up properly.

2. Disconnect any telephone, network, or USB cables from the computer.

3. Disconnect the computer and all attached devices from their electrical outlets.

4. Remove the System Cover, and Battery.

The SIM card is located beside the WLAN card, gently slide the SIM card cover towards the rear of the personal computer to unlock it [1]. Flip the SIM card up and over along the top edge of the card [2] and lift the card out of the computer [3].

Pre-removal instructions before removing the keyboard:

1. During installation or removals of any hardware, always ensure that all data is backed up properly.

2. Disconnect any telephone, network, or USB cables from the computer.

3. Disconnect the computer and all attached devices from their electrical outlets.

4. Remove the System Cover, and Battery.

The keyboard's cables are located underneath the battery. Lift the catches on the zif connectors and disconnect the keyboard cable, the fingerprint cable, and the fingerprint button cable from the connectors on the motherboard.

Turn the computer over and open it, so you can get access to the keyboard lattice. Using a plastic scribe or similar tool pry up the lattice. Start at the recess points between the F3 and F4 keys [1] and the Delete and Calc keys [2].

Lift the lattice up and out of the computer.

Remove the six (6) screws that hold the keyboard to the palm rest [1]. Pry up the bottom edge of the keyboard and work along both sides [2,3,4].

Pull the keyboard toward you and lift it out of the computer.

Pre-removal instructions before removing the memory:

1. During installation or removals of any hardware, always ensure that all data is backed up properly.

2. Disconnect any telephone, network, or USB cables from the computer.

3. Disconnect the computer and all attached devices from their electrical outlets.

4. Remove the System Cover, Battery, and Keyboard.

The primary memory is located underneath the keyboard. Remove the single screw securing the memory shield [1] and slide the shield to the right and lift it up away from the memory [2]. Pull the metal retention clips away from the memory DIMM [3]. Lift out of the personal computer [4] and repeat for any additional memory DIMMs at that location.

Turn the computer over, because the secondary memory is located in the middle of the base of the computer. As with the primary memory, pull apart the metal retention clips on either side of the memory DIMM [1]. Lift it out of the slot [2] and repeat for any additional DIMMs at that location.

Pre-removal instructions before removing the hard disk drive:

1. During installation or removals of any hardware, always ensure that all data is backed up properly.

2. Disconnect any telephone, network, or USB cables from the computer.

3. Disconnect the computer and all attached devices from their electrical outlets.

4. Remove the System Cover, and Battery.

The 2.5" hard drive is located to the left side of the battery. Remove the four (4) screws from around the cage [1]. Pull the release tab on top of the drive towards the right side of the cage, to lift it up and out of the computer [2].

Remove the four (4) screws holding the hard drive in its cage and lift it out of the cage.

Remove the two (2) screws from the top of the interposer card [1]. Remove the card from the computer and lift it out of the personal computer [2].

Pre-removal instructions before removing the M.2 solid state drive (SSD):

1. During installation or removals of any hardware, always ensure that all data is backed up properly.

2. Disconnect any telephone, network, or USB cables from the computer.

3. Disconnect the computer and all attached devices from their electrical outlets.

4. Remove the System Cover, and Battery.

There are three (3) possible locations on the base of the computer to fit an M.2 SSD card. The steps below take you through where each position is:

1. Slot 4 is located in the bottom-left corner of the base. Remove the single screw that holds the thermal plate in place [1] and lift the plate out of the personal computer [2]. To remove the M.2 card from the computer, remove the screw from the bottom-left corner of the card [3]. Lift the card out of the module [4].

2. Slot 3 is located above the battery bay in the right corner of the base. Remove the single screw that holds the thermal plate [1] in place. Pull the plate out of the computer [2]. Undo the screw [3] securing the end of the card and lift the card out of the personal computer [4].

3. Slot 5 is located between Slot 3 and the right corner computer fan. Remove the single screw that holds the thermal plate [1] in place and pull the plate out of the computer [2]. Undo the screw [3] securing the end of the card and lift the card out of the personal computer [4].

Pre-removal instructions before removing the cellular WWAN wireless card:

1. During installation or removals of any hardware, always ensure that all data is backed up properly.

2. Disconnect any telephone, network, or USB cables from the computer.

3. Disconnect the computer and all attached devices from their electrical outlets.

4. Remove the System Cover, and Battery.

The WWAN card is located to the left of the secondary memory, remove the screw [1] and the bracket [2] from the card.

Disconnect the antenna cables from the card [3]. (The cables have a press-stud connector and pop off the stud with a little pressure.) When the card appears, lift it out of the connector and the personal computer [4].

Pre-removal instructions before removing the WLAN card (WiFi, Wireless):

1. During installation or removals of any hardware, always ensure that all data is backed up properly.

2. Disconnect any telephone, network, or USB cables from the computer.

3. Disconnect the computer and all attached devices from their electrical outlets.

4. Remove the System Cover, and Battery.

The WLAN card is located between the WWAN card and the left side computer fan, remove the screw [1] and the bracket [2] from the card.

Disconnect the antenna cables from the card [3] (The cables have a press-stud connector and pop off the stud with a little pressure.), and when the card appears, lift it out of the connector and the personal computer [4].