Power Management Settings
The system BIOS provides various options for power settings to help you save energy, maximize system performance. The following table provides a guide for power management settings.
Table
System Setup Menu Setting | Maximum |
| Energy Efficiency | ||
|
| Performance (48DB) | (48DC) |
| |
|
|
|
|
|
|
Setup Page | Setting | Option | D4 | Option | D4 |
|
|
| Token |
| Token |
|
|
|
|
|
|
Power | Power Management | Max. | 021F | Node | 4800 |
Management |
| Performance |
| Manager |
|
| Energy Efficiency Policy | Performance | 48D0 | Low | 48D2 |
|
|
|
| Power |
|
CPU | Active Processor Cores | All | 026E | 1/2 | 0233/ |
Configuration |
|
|
|
| 0232 |
| Frequency Ratio | Auto | 48C0 | 3 | 48C3 |
| QPI Frequency | Auto | 48C8 | 4.80GT/s | 48C9 |
| Turbo Mode | Enabled | 01E8 | Disabled | 01EA |
| C State | Disabled | 024C | Enabled | 024B |
| C1E State | Disabled | 02A2 | Enabled | 02A1 |
| C6 State | Disabled | 480A | Enabled | 480B |
| C7 State | Disabled | 480E | Enabled | 480F |
| Direct Cache Access | Enabled | 48D4 | Disabled | 48D3 |
| Enabled | 00D1 | Disabled | 00D2 | |
| Technology |
|
|
|
|
| Adjacent Cache Line | Enabled | 0172 | Disabled | 0171 |
| Prefetch |
|
|
|
|
| Hardware Prefetcher | Enabled | 0174 | Disabled | 0173 |
| DCU Streamer | Enabled | 02C5 | Disabled | 02C6 |
| Prefetcher |
|
|
|
|
| DCU IP Prefetcher | Enabled | 02CE | Disabled | 02CF |
