Ecs Elitegroup - 423
| Socket | Chipset | Model | ||
| Ecs Elitegroup | 423 | Intel 845 | P4IBAS2 | |
| Ecs Elitegroup | 423 | Intel 850 | P4ITA | 4 Subs |
| Ecs Elitegroup | 423 | Intel 850 | P4ITA2 | |
| Ecs Elitegroup | 423 | Intel 850 | P4ITM | |
| Ecs Elitegroup | 423 | VIA P4X266 | P4VXAS | 8 Subs |
| Ecs Elitegroup | 423 | VIA P4X266 | P4VXASD | 4 Subs |
| Ecs Elitegroup | 423 | VIA P4X266 | P4VXMS |
