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Memory Upgrade for IBM xSeries 220 8645-31X
IBM xSeries 220 8645-31X memory upgrade specification, xSeries 220 8645-31X maximum memory, memory speed, and memory upgrade options.
Upgrade memory on IBM xSeries 220 8645-31X upto a maximum of 4.0 GB
PC133 Registered ECC SDRAM DIMMs, with maximum 512MB per slot in 8 memory slots. The IBM xSeries 220 8645-31X takes the PC133 Registered ECC SDRAM DIMMs Memory Type.
| IBM xSeries 220 8645-31X Memory Upgrade Specification | ||||
|---|---|---|---|---|
| Standard Memory | Maximum Memory | Memory Expansion | CPU Type | Model/Chipset |
| 128 MB (removable) | 4.0 GB PC133 Registered ECC SDRAM DIMMs |
8 sockets | 866MHz Intel Pentium III | 133MHz FSB |
IBM xSeries 220 8645-31X 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 xSeries 220 8645-31X has 8 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.
