
Assembly 1b: System Unit - Exterior
| Asm- | FRU | Description | Model | Model | Model | |
| Index | Number | 6644 | 6645 | 6646 | ||
| 
 | ||||||
| 
 | 
 | 
 | 
 | 
 | 
 | |
| 19K2666 | Top Cover | X | X | X | ||
| 
 | 
 | 
 | 
 | 
 | 
 | |
| 19K3546 | Main Bezel | X | X | X | ||
| 
 | 
 | 
 | 
 | 
 | 
 | 

| Asm- | FRU | Description | Model | Model | Model | |
| Index | Number | 6644 | 6645 | 6646 | ||
| 
 | ||||||
| 
 | 
 | 
 | 
 | 
 | 
 | |
| 19K2666 | Top Cover | X | X | X | ||
| 
 | 
 | 
 | 
 | 
 | 
 | |
| 19K3546 | Main Bezel | X | X | X | ||
| 
 | 
 | 
 | 
 | 
 | 
 |