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Memory Upgrade for IBM BladeCenter QS22

IBM BladeCenter QS22 memory upgrade specification, BladeCenter QS22 maximum memory, memory speed, and memory upgrade options.

Upgrade memory on IBM BladeCenter QS22 upto a maximum of 32GB
PC2-6400 Registered ECC DDR2 DIMM 240-Pin memory, with maximum 4GB per slot in 8 Sockets memory slots. The IBM BladeCenter QS22 takes the PC2-6400 Registered ECC DDR2 DIMM 240-Pin memory Memory Type.

IBM BladeCenter QS22 Memory Upgrade Specification
Standard Memory Maximum Memory Memory Expansion CPU Type Model/Chipset
4GB(Removable) 32GB
PC2-6400 Registered ECC DDR2 DIMM 240-Pin memory
8 Sockets
 

IBM BladeCenter QS22 Memory Upgrade options.

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 BladeCenter QS22 has 8 Sockets 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.