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IBM xSeries 370 8681-1RX Memory RAM Upgrades

IBM xSeries 370 8681-1RX RAM Memory Specification

Choose the following RAM Memory Upgrade for IBM xSeries 370 8681-1RX. 

How much memory can I upgrade my IBM xSeries 370 8681-1RX to and what is memory type it takes?

You can upgrade your IBM xSeries 370 8681-1RX upto a maximum of 16/32 GB, with maximum of per slot in 16 (4 banks of 4) memory slots. The IBM xSeries 370 8681-1RX takes the PC100 Registered ECC SDRAM DIMMs. To support over 16 GB, the optional memory card must be installed. It must be configured identical to the standard memory card to achieve memory interleave. Memory Type.

What are memory sockets or slots and how are these divided into bank?

Memory Sockets or Slots are the place where memory RAM modules are inserted in the motherboard. The IBM xSeries 370 8681-1RX has 16 (4 banks of 4) memory expansion slots. A memory bank is a group of memory expansion sockets, a bank must be completely filled with memory modules of the same size and type in order for the system to recognize and address the memory. i.e. :


2 sockets (2 banks of 1) This indicates that there are 2 memory slots. These are divided into 2 banks, and each bank consists of one memory slot. So you can add memory one piece at a time for the system to use.

3 sockets (3 banks of 1) This indicates that there are 3 memory slots. These are divided into 3 banks, and each bank consists of one memory slot. So you can add memory one piece at a time for the system to use.

4 sockets (2 banks of 2) This indicates that there are 4 memory slots. These are divided into 2 banks, and each bank consists of two memory slots. So you must add memory two pieces at a time (they must be the same size and type of memory) in order for the system to benefit from the upgrade.

8 sockets (4 banks of 2) This indicates that there are 8 memory slots. These are divided into 4 banks, and each bank consists of two memory slots. So you must add memory two pieces at a time (they must be the same size and type of memory) in order for the system to benefit from the upgrade.

12 sockets (3 banks of 4) This indicates that there are 12 memory slots. These are divided into 3 banks, and each bank consists of four memory slots. So you must add memory four pieces at a time (and they must be the same size and type of memory) in order for the system to benefit from the upgrade.

How do I install memory on my IBM xSeries 370 8681-1RX?

Memory installation help guides can be found at the following link.
Memory Installation Guide
184-pin DDR DIMM Installation Guide
168-pin SDRAM DIMM Installation Guide

I still need some help on choosing my IBM xSeries 370 8681-1RX memory upgrade, what do I do?

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