| Equipment guidelines | 27 |
| Component replacement procedures | 28 |
| Serial number | 28 |
| Computer feet | 29 |
| Battery | 30 |
| Service door | 31 |
| Hard drive | 32 |
| Optical drive | 34 |
| WLAN module | 36 |
| Memory module | 37 |
| RTC battery | 38 |
| Keyboard | 39 |
| Top cover | 41 |
| Power button board | 44 |
| Speaker assembly | 45 |
| TouchPad button board | 46 |
| USB board | 47 |
| Security cable lock | 48 |
| Power connector | 49 |
| Display assembly | 50 |
| System board | 57 |
| Fan/heat sink assembly | 60 |
| .............................................................................................................................. | 63 |
5 | Specifications | 64 |
| Computer specifications | 64 |
| 65 | |
| Hard drive specifications | 66 |
| DVD±RW and | 67 |
| ............................................................................................................................................ | 68 |
6 | Using Setup Utility (BIOS) and System Diagnostics | 69 |
| Starting Setup Utility (BIOS) | 69 |
| Updating the BIOS | 69 |
| Determining the BIOS version | 69 |
| Downloading a BIOS update | 70 |
| Using System Diagnostics | 70 |
7 | Backing up, restoring, and recovering | 72 |
| Creating recovery media and backups | 72 |
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