A-Tech 4GB DDR3 1866MHz ECC RDIMM 2Rx8 Server Memory

4GB DDR3 1866MHz ECC RDIMM for servers

This 4GB registered DIMM operates at DDR3 1866MHz with a CAS latency of 13 and standard 1.50V voltage. It uses a 2Rx8 organisation and Micron chipset on a 240-pin form factor. The module is built as a compatible replacement for the Micron MT18JSF51272PDZ-1G9K1 part number.

Replaces Micron MT18JSF51272PDZ-1G9K1 in DDR3

It serves as a direct drop-in when a system requires that specific Micron part number and the platform supports DDR3 1866MHz registered ECC memory. The upgrade is worthwhile when the server board accepts PC3-14900 RDIMMs and the workload benefits from ECC error correction. Systems limited to lower DDR3 speeds or unbuffered DIMMs cannot use this module.

DDR3 1866MHz registered ECC limits

The DDR3 interface tops out at 1866MHz here, so bandwidth is capped by that generation's signalling rate. Registered buffering adds a clock cycle of latency but enables the higher capacities and signal integrity that server chipsets demand. ECC function only works on platforms with a memory controller that supports error correction; consumer boards without ECC support will ignore the parity bits.