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| CPU Features Submenu of the Advanced Menu | 
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| The CPU Features Submenu configures the system | Note that this submenu only appears in certain | ||||||||
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 | PhoenixBIOS Setup Utility | 
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 | Main | Advanced | Security | Power Savings | Exit | 
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 | CPU Features | 
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 | Item Specific Help | 
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 | Processor Serial Number: | [Disabled] | Configures Processor | 
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 | Serial Number feature | 
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 | Intel(R) SpeedStep(TM) Technology: [Auto] | of Pentium(R) III | 
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 | Processor Serial Number | 
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 | [Enabled] | 
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 | Processor Serial Number | 
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| F1 Help | Select | Item | 
| ESC Exit | Select | Menu | 
| Change | Values | |
| Enter | Select | ▲  | 
F9 Setup Defaults
F10 Save and Exit
Figure 11. CPU Features Submenu
| Menu Field | Options | Default | Description | |
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| Processor Serial | ■ | Enabled | [Disabled] | Configures Processor Serial Number feature of Pentium(R) III | 
| Number | ■ | Disabled | 
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| Intel(R) | • | Auto | [Auto] | When Auto is selected, the CPU speed is determined by the power | 
| SpeedStep(TM) | • | Max. Perf. | 
 | source used. When Max. Perf. is selected, CPU speed is maximized. | 
| Technology: | • | Batt. Opt. | 
 | When Batt. Opt. is selected, CPU speed is optimized for battery | 
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 | operation. When Disabled is selected, CPU speed is fixed to battery | 
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 | optimized speed. | ||
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