There is no apparent substantive difference between appearance and structure, mainly in the server memory introduces some new unique technology, such as ECC, ChipKill, Register, hot swap technology, with high stability and error correction performance .
ECC memory is the error correction memory, in short, it has the function of finding errors and correcting errors. It is generally used in high-end desktop computers/servers and graphics workstations, which will make the entire computer system more secure and stable during work.
Chipkill
Chipkill technology is a new ECC memory protection standard developed by IBM in order to solve the current shortage of ECC technology in server memory. We know that ECC memory can only detect and correct single-bit errors at the same time. However, if more than two bits of data are detected at the same time, it is generally incapable of doing anything wrong. At present, ECC technology is widely used in server memory. One reason is that other new memory technologies are not yet mature. In addition, the system speed is still very high in current servers. At this time, the frequency is generally the same time. The phenomenon of multi-bit errors has rarely occurred. Because of this, the ECC technology has been fully recognized and applied, making the ECC memory technology a memory standard on almost all servers.
Register is a register or a directory register. It can be regarded as the directory of the book by using the register or directory register. With it, when the memory receives a read/write instruction, this directory will be retrieved first, and then the read/write operation will be performed. Improve server memory productivity. Memory with Register must have Buffer, and Register memory currently visible also has ECC function. Its main application is in high-end servers and graphics workstations, such as IBM Netfinity 5000.