Dell Inspiron 7490 P115G - Removing and Installing Components

Removing and installing components
Recommended tools
The procedures in this document require the following tools:
• Phillips #0 screwdriver
• Phillips #1 screwdriver
• Philips #2 screwdriver
• Plastic scribe
• T-30 torx screwdriver
NOTE:
The #0 screw driver is for screws 0-1 and the #1 screw driver is for screws 2-4
Screw list
NOTE: When removing screws from a component, it is recommended to note the screw type, the quantity of screws,
and then place them in a screw storage box. This is to ensure that the correct number of screws and correct screw type
is restored when the component is replaced.
NOTE: Some computers have magnetic surfaces. Ensure that the screws are not left attached to such surface when
replacing a component.
NOTE: Screw color may vary with the configuration ordered.
Table 1. Screw list
Component Secured to Screw type Quantity Screw image
Base cover Palm-rest assembly M2x3.5 6
Battery Palm-rest assembly M2x2 4
Solid-state drive shield
NOTE: Available only
on computers
shipped with solid-
state drive with a
capacity more than
512 GB.
System board M2x3 1
Heat sink (on computers
shipped with discrete
graphics card)
System board M2x3 5
Heat sink (on computers
shipped with integrated
graphics card)
System board M2x3 4
Fan Palm-rest assembly M2x3 3
WLAN-card bracket WLAN card M1.6x2.5 1
2
Removing and installing components 9