Serial presence detect - Wikipedia
WEBIn computing, serial presence detect (SPD) is a standardized way to automatically access information about a memory module. 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 more information.
WEBPC SDRAM Serial Presence Detect (SPD) Specification Nov, 1999 5 of 30 Revision 1.2B 1.0 Introduction This specification defines the Serial Presence Detect (SPD) electrical and Data Structure requirements for Synchronous DRAM Dual In-Line Memory Modules (SDRAM DIMMs) and Small-outline Memory Modules (SO-DIMM).
WEBSerial Presence Detect (SPD) standard is intended for use on any memory module, independent of memory technology or module form factor. At the point of standardization of any given memory module, SPD being defined within this standard, may be easily implemented if so chosen.
Synchronous dynamic random-access memory - Wikipedia
WEBSynchronous dynamic random-access memory (synchronous dynamic RAM or SDRAM) is any DRAM where the operation of its external pin interface is coordinated by an externally supplied clock signal.
SPD Annex L: Serial Presence Detect (SPD) for DDR4 SDRAM …
WEBThis annex describes the serial presence detect (SPD) values for all DDR4 modules. Differences between module types are encapsulated in subsections of this annex. These presence detect values are those referenced in the …
Serial Presence Detect - Techopedia
WEBNov 30, 2011 · Serial presence detect (SPD) is information stored on an EEPROM chip when a computer is booted. It is located on an SDRAM memory module and communicates to the BIOS the module size, data width, speed and voltage, which are used to configure the module memory controller for maximum reliability and performance.
WEBSerial Presence Detect Technical Reference SMMU001 January 1998 Printed on Recycled Paper
Serial Presence Detect | JEDEC
WEBThis standard describes the serial presence detect (SPD) values for all DDR5 memory modules. In this context, “modules” applies to memory modules like traditional Dual In-line Memory Modules (DIMMs) or solder-down motherboard applications.
PassMark RAMMon - Identify RAM type, speed & memory timings
WEBJul 23, 2024 · RAMMon is a lightweight Windows application that reports memory timings, transfer rate, channel mode and other memory settings, as well as the Serial Presence Detect (SPD) data of RAM modules.
SDRAM Memory Systems: Embedded Test & Measurement …
WEBDetect The Serial Presence Detect (SPD) function is on all computer DIMMs and is used to provide DIMM memory configuration information such as memory size, speed, latency, timing, manufacturer, etc. to the computer’s BIOS …
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