Chapter 7. IBM System x3690 X5 341
Figure 7-40 UEFI Operating Modes panel
As seen in Figure 7-40, the Operating Modes settings provide the user with several
pre-configured Processor and Memory settings that are defined by system characteristics,
whether it is Efficiency, Acoustic, Performance, or Custom. The default is Custom.
Acoustic Mode emphasizes power-saving operations generating less heat and noise, at
the expense of performance.
Efficiency Mode provides the best balance of performance and power consumption.
Performance Mode provides the best system performance at the expense of power
efficiency.
Custom Mode allows individual settings of the performance-related options.
Table 7-4 on page 342 displays comparisons of the operating modes for the IBM System
x3690 X5. We recommend the available default Custom Mode setting, because it provides
high system performance with acceptable power consumption. Also, consider Efficiency
Mode to gain the best performance per watt operations.
Acoustic Mode is an available option when it is necessary to operate the system with minimal
power consumption. Use Performance Mode when you want to get the best possible
performance from the system.
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