Precautionary Measures

Advance Technical Repair of Laptops Motherboard

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NOTICE: Only a certified service technician should perform the procedures for removing and replacing parts. The warranty on the computer becomes void if anyone other than a certified technician performs these procedures.

WARNING FOR YOUR PERSONAL SAFETY AND PROTECTION OF THE EQUIPMENT

Before you start to work on the computer, perform the following steps in the sequence indicated:

1. Ground yourself by attaching an antistatic grounding strap to your wrist and to an unpainted metal surface on the computer's I/O panel. If an antistatic grounding strap is not available, periodically discharge static electricity from your body by touching one of the connectors on the I/O panel.

2. Turn off the computer and any attached peripherals.

3. Disconnect the computer and any attached peripherals from electrical outlets to reduce the potential for personal injury or shock.

Precautionary measures include disconnecting the computer from the AC adapter and port replicator and removing the main battery, PC Cards, hard-disk drive, memory module cover, memory modules, and devices in the media bay.

To take these precautionary measures, perform the following steps:

1. Determine the power state of the computer.

If the system is on, go to step 2. If you are unsure whether the system is on, shut down and restart the system, and then go to step 2.

2. Turn off any attached peripherals, and then shut down the computer.

3. Disconnect the computer and any attached peripherals from electrical outlets to reduce the potential for personal injury or shock.

If the computer has an AC adapter, disconnect the AC power cable (see Figure 1) from the electrical outlet and then from the AC adapter; then disconnect the AC adapter from the computer or from the Inspiron Port Replicator.

Figure 1. AC Adapter

1

AC power cable

2

AC adapter

3

AC adapter cable

4

AC adapter connector

4. If the computer is connected to a port replicator (see Figure 2), pull both release handles on the sides of the replicator to undock the computer.

Figure 2. Port Replicator

1 Release handles

5. Remove the main battery from the battery compartment (see Figure 3).

Unlock the latch lock on the bottom of the computer by flipping it toward the back of the computer. Slide the latch release in the direction of the arrow. Keep holding the latch release with one hand while pulling the battery out of the compartment with the other.

Figure 3. Battery Compartment

1 Latch lock (unlocked position)

2 Battery

3 Latch release

6. Remove PC Cards (see Figure 4).

NOTICE: Use the PC Card configuration utility on the taskbar to select and stop a card before removing it from the computer. If you do not remove the card in the configuration utility, you could lose data from open application programs.

To remove PC Cards from the top connector, press the top eject button. When the button slides out, press it again to release the card. Gently remove the card. Press the eject button again until it is flush with the computer casing. Grasp the end of the card, and pull it completely from the slot.

To remove PC Cards from the bottom connector, follow the same procedure.

Figure 4. PC Card Removal

7 Remove the hard-disk drive assembly (see Figure 5).

Loosen the two captive screws that secure the hard-disk drive into the bottom of the computer. The front edge of the cover pops up slightly. Slide the hard-disk drive toward the front of the computer and then lift the drive out of the computer.

NOTICE: When the hard-disk drive is not in the computer, store it in a hard-disk drive case to protect it from exposure to static electricity.

NOTICE: Handle the hard-disk drive gently and don't bump or drop the drive. Rough handling of the drive could induce failure or loss of data.

Figure 5. Hard-Disk Drive Assembly Removal

1 Hard-disk drive

2 Hinge

3 Captive screws (2)

8. Remove the memory module covers (see Figure 6).

Slide the memory module cover as far as it will go in the direction of the arrow, and then remove the cover.

1 Video card cover

2 Memory module cover

To replace a cover, place it over the opening, leaving a small gap along the rounded edge, and then slide the cover toward the outside of the computer until it snaps into place.

9. Remove the memory modules (see Figure 7).

Carefully spread apart the inner metal tabs of the memory module socket to disengage the module from the socket. The module should pop up slightly. Then pull the memory module out of the socket.

bottom of computer

Figure 7. Memory Modules

1 Slot 1

2 Memory module

3 Slot 2

10. Remove the video card (see Figure 8).

Remove the two 3-mm screws securing the video card. Gently pull the video card off of the connectors on the bottom of the system board by lifting it at the notches located between the screws. Do not rock the card to remove it because this may damage the connectors.

Inspect the two thermal pads on the bottom of the system board and replace them if necessary.

Raised Floor Systems Details

2 Video card

3 Video card connectors (2)

11. If present, remove the module from the MegaBay™ (see Figure 9)

Unlock the latch lock by flipping it toward the back of the computer. Slide the latch release in the direction of the arrow. Keep holding the latch release with one hand while pulling the combo module or second battery straight out of the MegaBay with the other.

Figure 9. Media Bay Module Removal

Figure 9. Media Bay Module Removal

1 Latch release

2 Media bay module

3 Latch lock (unlocked position)

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