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Disconnect the speaker connector from the system board.
Remove the four M2. Shut down the operating system: Lift the palm rest and remove it from the computer. Before you begin the following procedure, follow the safety instructions in the Product I nformation Guide.
If you are replacing the thermal-cooling assembly without removing deol replacing a new processor, it is not necessary to clean the surface of the processor. Before you begin the following m990, follow the safety instructions in the Product Information Guide. Ensure that the AC adapter is plugged in and that the main battery is installed properly. If you are replacing a Mini-Card, remove the existing card: Slide the battery-bay latch release on the bottom of the computer and remove the battery from the bay.
When the flash update is complete, the computer will automatically reboot. When you replace the processor thermal-cooling assembly, be sure to place a new thermal pad on the part of the thermal-cooling assembly that covers the processor. Replace the coin-cell battery see Replacing the Coin-Cell Battery. Remove the spring from the hook on the computer base by lifting it up and away with a screwdriver or a plastic scribe. Replace and tighten the screws.
Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Remove the display assembly see Removing the Display Assembly.
Dell Precision M90 Parts
Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. The screw locations may vary slightly from the image shown below. If a memory module is not installed properly, the computer does not boot.
Remove the two M2. If nanual remove the hard drive from the computer when the drive is hot, do not touch the metal housing of the hard drive. Replace the display assembly see Replacing the Display Assembly. Reconnect the bottom flex-cable connector to pdecision inverter connector.
Align the display assembly over the screw holes in the base of the computer. Recommended Tools The procedures in this document may require the following tools: The left hinge assembly has a small tab that you must first insert underneath the edge of the palm rest.
Loosen eell two captive screws that secure the subwoofer in place. Re-route the speaker cables into the cable guides, and re-adhere the tape to secure the speaker cables in place on the computer base. You may experience slight resistance when you lift the battery because of an adhesive underneath the battery that holds it in place.
Full text of “Dell: Precision M90 Service Manual”
Replacing the Palm Rest Ensure that the AC adapter is plugged in and that the main battery is installed properly. Page 14 Back to Contents Page Dfll a small flat-blade screwdriver, insert the screwdriver on the right side to gently pry dll hinge cover loose. If you feel resistance, check the connectors and realign the card. To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer.
The system board’s BIOS chip contains the Service Tag, which is also visible on a barcode label on the bottom of the computer. Install the replacement Mini-Card: Turn on the computer.
Disconnect the speaker cable connector from the connector on the system board. Ensure that the newly installed latch moves smoothly and freely when pushed and released. Loosen the captive ground screw servicee attaches the display-panel ground wire to the display back cover. Unless otherwise noted, each procedure in this document assumes that a part can be replaced by performing the removal procedure in reverse order.
Replace the display panel inside the display back cover. A NOTE indicates important information that helps you make better use of your computer. Trademarks used in this text: To avoid damaging the Mini-Card, never place cables under the card.
Remove the four M2. If a Mini-Card is not already installed, go preciision step 5.