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Memory Upgrade for IBM Power 520 Express Model M25 (9408-M25)
IBM Power 520 Express Model M25 (9408-M25) memory upgrade specification, Power 520 Express Model M25 (9408-M25) maximum memory, memory speed, and memory upgrade options.
Upgrade memory on IBM Power 520 Express Model M25 (9408-M25) upto a maximum of 32GB
PC2-5300 DDR2-667 240pin Chipkill ECC DIMM, with maximum 8GB per slot in 4 (2 banks of 2) memory slots. The IBM Power 520 Express Model M25 (9408-M25) takes the PC2-5300 DDR2-667 240pin Chipkill ECC DIMM Memory Type.
| IBM Power 520 Express Model M25 (9408-M25) Memory Upgrade Specification | ||||
|---|---|---|---|---|
| Standard Memory | Maximum Memory | Memory Expansion | CPU Type | Model/Chipset |
| 0MB | 32GB PC2-5300 DDR2-667 240pin Chipkill ECC DIMM |
4 (2 banks of 2) | POWER6 (4.2GHz) |
|
IBM Power 520 Express Model M25 (9408-M25) 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 Power 520 Express Model M25 (9408-M25) has 4 (2 banks of 2) 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.
