Inspiron 3785 Service Manual

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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 listThe following table shows the list of screws used in your computer and the component it is secured to.
Component	Secured to	Screw type	Quantity	Screw image
Base cover	Palm rest and keyboard assembly	M2x2	2
Base cover	Palm rest and keyboard assembly	M2x4	1
Base cover	Palm rest and keyboard assembly	M2.5x7	7	NOTE: Screw color may vary depending on the configuration ordered.
Battery	Palm rest and keyboard assembly	M2x3	4
Display panel	Display back-cover and antenna assembly	M2x2	4
Fan	Palm rest and keyboard assembly	M2.5x5	3
Hard-drive assembly	Palm rest and keyboard assembly	M2x3	4
Hard-drive bracket	Hard drive	M3x3	4
Heat sink NOTE: For computers shipped with discrete graphics.	System board	M2x3	3
Hinges	Palm rest and keyboard assembly	M2.5x5	5
Hinge brackets	Display back-cover and antenna assembly	M2.5x4	8
Hinge brackets	Display back-cover and antenna assembly	M2x2	2
I/O board	Palm rest and keyboard assembly	M2x4	1
Optical-drive bracket	Optical drive	M2x3	2
Optical-drive connector board	Palm rest and keyboard assembly	M2x2 Big Head	1
Power-adapter port	Palm rest and keyboard assembly	M2x2	1
Power-button board	Palm rest and keyboard assembly	M2x3	1
Power button with fingerprint reader (optional)	Palm rest and keyboard assembly	M2x2	1
Solid-state drive	Palm rest and keyboard assembly	M2x2.2	1
System board	Palm rest and keyboard assembly	M2x4	1
Touchpad	Palm rest and keyboard assembly	M2x2	4
Wireless-card bracket	System board	M2x3	1