1. Minimum CPU: Pentium-class 120 MHz or equivalent
| 120 MHz Required | 166 MHz Required | 166 MHz Required |
2. L2 cache with 256K minimum, for Pentium-class processor
| Recommended | Required | Required |
3. Minimum system memory: 16 MB
| Required | 32 MB Required | Required |
4. Advanced Configuration and Power Interface (ACPI) support
| Required | Required | Required |
5. Hardware support for OnNow initiative
| Required | Required | Required |
6. BIOS support for OnNow initiative for x86-based systems
| Required | Required | Required |
7. System BIOS support for boot devices, for x86-based systems
| Required | Required | Required |
8. BIOS boot support for USB keyboard, if USB is the only keyboard
| Required | Required | Required |