Dell OptiPlex 5490 All-In-One - Page 13

Table 2. OptiPlex 5490 All-in-One screw list
Component Screw type Quantity Screw image
Camera door M3x5 2
Heat sink—UMA Captive screws 5
Heat sink—Discrete Captive screws 9
Power-supply unit (PSU) M3x5 2
PSU fan M3x5 2
Rear-I/O bracket M3x5 4
System board M3x5 9
Speakers M3 4+7.1xZN 6
Power-button board M3x5 1
Microphones M2x2.5 4
Side I/O-board shield M3x5 2
Side-I/O board M2.5x3.5 2
Antenna modules M2x2.5 2
Display panel M3x5 12
Middle frame M3x5 17
Audio board M3x5 1
Removing and installing components 13