Vostro 7590 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.

Table 1. Screw list. Screw list
Component	Secured to	Screw type	Quantity
Base cover	Palm-rest and keyboard assembly	M2x5	5
Base cover	Palm-rest and keyboard assembly	M2x5	3
6-Cell Battery	Palm-rest and keyboard assembly	M2x4	7
3-Cell battery	Palm-rest and keyboard assembly	M2x4	4
Hard drive bracket NOTE: Hard drive is available in computers shipped with 3-cell battery.	Palm-rest and keyboard assembly	M2x4	3
Hard drive	Hard drive bracket	M3x3	4
Display assembly	Palm-rest and keyboard assembly	M2.5x5	6
Heat sink - UMA	System board	M2x4	4
Heat sink - Discrete	System board	M2x4	7
I/O board	Palm-rest and keyboard assembly	M2x3	3
CPU fan	Palm-rest and keyboard assembly	M2x4	2
Power-adapter port	Palm-rest and keyboard assembly	M2x4	1
Power button and optional fingerprint reader	Palm-rest and keyboard assembly	M1.2x2	2
GPU fan	Palm-rest and keyboard assembly	M2x4	2
M.2 2280 PCIe solid-state drive	System board	M2x4	1
M.2 2230 solid-state drive	Palm-rest and keyboard assembly	M2x4	1
M.2 2280 solid-state drive	Palm-rest and keyboard assembly	M2x4	2
USB Type-C bracket	System board	M2x5	2
Touchpad bracket	Palm-rest and keyboard assembly	M2x3	3
Touchpad	Palm rest and keyboard assembly	M1.6x2	2
Wireless-card bracket	System board	M2x4	1
System board	Palm rest and keyboard assembly	M2x4	6