![]() In most cases, there is a special optional procedure for accessing BIOS parameters, to view and potentially make changes in settings. ![]() Some computers adapt to hardware changes completely automatically. SPD is a memory hardware feature that makes it possible for the computer to know what memory is present, and what memory timings to use to access the memory. Since about the mid-1990s, this process includes automatically configuring the hardware currently present. ![]() When an ordinary modern computer is turned on, it starts by doing a power-on self-test (POST). Earlier 72-pin SIMMs included five pins that provided five bits of parallel presence detect (PPD) data, but the 168-pin DIMM standard changed to a serial presence detect to encode much more information. In computing, serial presence detect ( SPD) is a standardized way to automatically access information about a memory module. Standardized way to automatically access information about a memory module
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June 2023
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