Many laptop users who are concerned about battery life will give priority to ultrabooks with low-power processors, but their actual standby capacity may not be as good as that of a friend's ordinary notebook. The reason may be that there is no energy-saving effect of digging out the power management options hidden in the dark. Power Management: A good partner for notebooks is a pre-installed Win7 notebook. Click on the power icon in the lower right corner of the taskbar to enter “More Power Options”, where you can balance in “Energy Saving” and “Leading Energy”. & rdquo; and “ high performance & rdquo; switch between the three states. When Ultrabook is always working in high performance mode, the standby capacity is definitely not as good as the traditional notebook working in balanced mode. The reason is very simple. Different power modes will differ in terms of CPU minimum frequency and system cooling mode (Table 1). The energy-saving mode is well understood, while the balance mode and the high-performance mode seem to be similar. Why can you always play a game with high-performance mode when running on battery power, but there will be occasional stuck in balanced mode? The reason is very simple. In the balanced mode, the system cooling mode is “passive”. When the CPU temperature exceeds the threshold, the core temperature of the CPU is reduced by down-clocking. In the high-performance mode, the system cooling mode is always “active”. <; (Figure 1), when the CPU temperature exceeds the threshold, the CPU core temperature is lowered by increasing the fan speed. One side is passive frequency reduction, and the other side is to enhance heat dissipation. The effect naturally has a cloud and mud. Fire Link Many of the brand's own power management software comes with more advanced features. Take Lenovo Yoga as an example. When set to “Maximum battery life”, the battery can be fully charged to 100%; when set to “Best battery life”, the battery will only start charging when it is below 55%, and Charge to 60% is to stop. For a discussion of charge thresholds and battery life, please refer to the article in this issue of the 2013 issue of "Lenovo Power Management Software Secrets". Advanced Gameplay for Power Management In the previous section, we introduced the method of shielding Turbo technology through ThrottleStop software, which is beneficial for notebooks with high heat generation to remain stable during games. In fact, relying on the power management that comes with Windows, you can also shield the Turbo Boost technology. Take the Core i5-4200M as an example. The CPU frequency corresponding to the maximum processor status is shown in Table 2. Therefore, when you encounter a 3D game that is not sensitive to CPU performance, if you want to reduce the temperature and power consumption and extend the battery life, you can adjust the power management mode to “High Performance Mode” and set the processor to the highest frequency. Set to 99% (Figure 2). The effect at this time is the same as the "Disable Turbo" check in the ThrottleStop software, and there is no risk. This article comes from [System Home] www.xp85.com