Description
Memory Capacity and Type
The memory capacity of the 47J0254 IBM memory module is 32GB, which means it can store 32 gigabytes of data. The type of memory is DDR4 (Double Data Rate 4), which is the latest generation of memory technology and is faster and more power-efficient than previous generations (DDR3, DDR2, etc.).
The memory is also ECC (Error-Correcting Code) registered, meaning that it has additional hardware to detect and correct errors that may occur during data transfer. This improves the reliability and stability of the system it is installed in.
Additionally, the memory is quad-rank, meaning it is organized into four ranks of memory chips, which can further improve performance in certain systems.
Pin Configuration and Voltage
The pin configuration of the 47J0254 IBM memory module is 288-pin, which refers to the number of connectors (pins) on the module that connect to the memory slot on the motherboard. This is the standard pin configuration for DDR4 memory modules.
The voltage of the memory is 1.2v, which refers to the amount of electrical power required to operate the module. This is a lower voltage than previous generation of memory, which helps to reduce power consumption and heat generated by the memory. The voltage can be important when building or upgrading a system as some motherboards may not support the lower voltage and may require a different memory module.
The Load Reduced Dimm (LRDIMM) is a type of memory module that has a buffer chip on the module. This buffer chip helps to reduce the loading on the memory controller and allows for greater capacity and higher performance in certain systems.
Error Correction and Registration
The 47J0254 IBM memory module is ECC (Error-Correcting Code) registered, which means it has additional hardware to detect and correct errors that may occur during data transfer. This is a type of memory that is specifically designed to detect and correct errors, which can occur due to various reasons such as electrical noise, temperature changes and other environmental factors.
ECC memory uses an algorithm to detect and correct single-bit errors and also detect multi-bit errors. This improves the reliability and stability of the system it is installed in, especially for systems that require high level of data integrity such as servers, workstations and critical systems.
Registration refers to the fact that the memory module has a register chip that acts as a buffer between the memory controller and the memory module. This helps to reduce loading on the memory controller, allowing for greater capacity and higher performance in certain systems.
The CL15 in the name of the product refers to the CAS Latency (Column Address Strobe Latency) which is the delay time between the memory controller sending a command and the memory module beginning to execute it. CL15 is considered as a good value for DDR4 memory and it is the latency of 15 clock cycles.
General Information
- Manufacturer: IBM
- Manufacturer Part Number: 47J0254
- Type: Memory (RAM)
- Sub-Type: PC4-17000
- Product Name: 32GB DDR4SDRAM Memory Module
Technical Information
- Storage Capacity: 32GB
- Memory Technology: DDR4 SDRAM
- Number Of Modules: 1 X 32GB
- Bus Speed: 2133MHZ DDR4-2133/PC4-17000
- Signal Processing: Quad Rank, Load Reduced
- Voltage: 1.2V
Physical Characteristics
- Form Factor: 288-PIN LRDIMM
Compatibility
- Ibm – Flex System X240 M5
- Ibm – System X3500 M5 (5464)
- Ibm – System X3550 M5
- Ibm – System X3650 M5





