Occasionally, you will get a notification that you need to update the official ACPI 圆4-based PC Driver for Windows XP/7/Vista/8/8.1/10 32-bit and 64-bit versions (and presumably, any version moving forward.) For example, if you do not type on your computer for a set amount of time, the monitor will power down to say power, which is labeled as Global state G0 with Sleep state S0. Each sleep state refers to a different action or lack of action. Within these states, there are other sleep states and codes to know, including: S0, S1, S2, S3, S4 and S5. These states will control different parts of a PC. It is important to know these states as you build a computer and look at different specs. ACPI Power StatesĪCPI has different modes that are referred to as states. For example, it will tell your computer to go to sleep if you haven’t been on it within a set amount of time. Since Windows 98, ACPI has been present in almost all Windows computers, replacing APM (Advanced Power Management) in every operating system from Windows Vista to now.ĪCPI helps with communication to a computer’s BIOS and instructs the BIOs to power down specific features. Originally, it was installed on laptops to help save power and battery life. When you buy or build an ACPI 圆4 based PC, it dictates the operating system communication to distribute power to different parts of your computer, including the hard drive. Automatically Update Drivers On Windows.What If The ACPI X64 Based PC Driver Update Doesn’t Work?.
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