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5 results about "Serial presence detect" patented technology

In 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 much more information.

Memory testing methods and electronic devices

ActiveCN121029624BError detection/correctionTest efficiencySerial presence detect
This application discloses a memory testing method and electronic device, relating to the field of memory testing technology. The method includes: dynamically configuring the testing environment based on the serial presence detection parameters of the memory under test, ensuring precise matching of testing criteria with memory specifications, significantly improving the accuracy and relevance of the test; simultaneously, by comparing power supply parameters and serial presence detection parameters in real time, dynamic adjustment of the protection threshold is achieved, which avoids accidental interruptions, ensures test continuity, and can respond promptly to real anomalies, effectively improving testing efficiency and reducing the risk of memory damage.
Owner:INSPUR SUZHOU INTELLIGENT TECH CO LTD

Active information display dynamic memory module

An active information display dynamic memory module is disclosed. The active information display dynamic memory module involves a microcontroller unit; a serial presence detect hub, electrically connected to the microcontroller unit; and a display panel, electrically connected to the microcontroller unit. Thereby, for DRAM modules under the JEDEC specification, new functional circuits on the circuit layout on the circuit carrier board is designed through designing customized microcontroller units. Through firmware design, the microcontroller unit is electrically connected to the serial presence detect hub and the display panel and controlled to actively display the specification and information of memory modules of different models.
Owner:V COLOR TECH INC

A memory SPD information recovery method, device and computing equipment

The application discloses a memory SPD information recovery method and device and a computing device, and relates to the technical field of computers.The method comprises the following steps: acquiring serial presence detect (SPD) information of each memory, each memory having identification information for representing the specifications of the memory, and the identification information and the SPD information of the memory of the same specifications being the same; when a fault memory with erroneous SPD information exists, recording first identification information of the fault memory, and determining target identification information from second identification information corresponding to the memory with non-erroneous SPD information, the target identification information being the same as the first identification information of the fault memory; and re-determining target SPD information corresponding to the target identification information as the SPD information of the fault memory. In this way, after the information of the fault memory with the SPD information variation is recovered, the fault memory can still be normally used because the hardware of the memory itself is not faulty, and the normal start of the system is no longer affected, so that the fault tolerance performance of the system is improved.
Owner:XFUSION DIGITAL TECH CO LTD

Serial presence detect logging

A serial presence detect (SPD) device includes a region of nonvolatile memory for SPD data and an additional region for other (e.g., vendor) use. The additional region may be subdivided into write protect regions that can be individually and independently write protected. To configure the write protection, a password key scheme is used to enter a mode whereby the write protection attributes may be configured. Another password key scheme is used to exit the write protection configuration mode.
Owner:RAMBUS INC