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IBM IntelliStation Z Pro 6866-40U Memory RAM Upgrades

IBM IntelliStation Z Pro 6866-40U RAM Memory Specification

Choose the following RAM Memory Upgrade for IBM IntelliStation Z Pro 6866-40U. 

How much memory can I upgrade my IBM IntelliStation Z Pro 6866-40U to and what is memory type it takes?

You can upgrade your IBM IntelliStation Z Pro 6866-40U upto a maximum of 1.0 GB, with maximum of 256MB per slot in 4 memory slots. The IBM IntelliStation Z Pro 6866-40U takes the PC600/800 ECC RDRAM RIMMs 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 IntelliStation Z Pro 6866-40U has 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 IntelliStation Z Pro 6866-40U?

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 IntelliStation Z Pro 6866-40U memory upgrade, what do I do?

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