- Notes, cautions, and warnings
- Working inside your computer
- Removing and installing components
- Device drivers
- System setup
- Troubleshooting
- Getting help and contacting Dell
Inspiron 7490 Service Manual
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.
| 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 |  |
| Touchpad | Palm-rest assembly | M1.6x2 | 4 |  |
| Hinges | Palm-rest assembly | M2x4.5 | 4 |  |
| Display-cable bracket | System board | M2x3.5 | 3 |  |
| I/O board | Palm-rest assembly | M2x3 | 3 | |
| Power button | Palm-rest assembly | M1.4x2.3 | 2 |  |
| Power button with optional fingerprint reader NOTE Applicable for computers shipped with a fingerprint reader. | Palm-rest assembly | M1.4x2.3 | 2 | |
| System board | Palm-rest assembly | M2x3 | 1 | |
| Keyboard | Palm-rest assembly | M1.2x1.5 | 28 |  |
| Fan bracket | Keyboard | M1.4x2.3 | 1 | |
1～5個の星の数で評価してください。
1～5個の星の数で評価してください。
1～5個の星の数で評価してください。
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