> IBM Memory > IBM Lenovo ThinkCentre Computer Memory
Memory Upgrade for IBM Lenovo ThinkCentre M55e 9645-Q1U
IBM Lenovo ThinkCentre M55e 9645-Q1U memory upgrade specification, Lenovo ThinkCentre M55e 9645-Q1U maximum memory, memory speed, and memory upgrade options.
Upgrade memory on IBM Lenovo ThinkCentre M55e 9645-Q1U upto a maximum of 4GB
PC2-5300 DDR2 SDRAM DIMM 240pin memory, with maximum 2GB per slot in 2 Sockets (2 banks of 1) memory slots. The IBM Lenovo ThinkCentre M55e 9645-Q1U takes the PC2-5300 DDR2 SDRAM DIMM 240pin memory Memory Type.
| IBM Lenovo ThinkCentre M55e 9645-Q1U Memory Upgrade Specification | ||||
|---|---|---|---|---|
| Standard Memory | Maximum Memory | Memory Expansion | CPU Type | Model/Chipset |
| 512MB (Removable) | 4GB PC2-5300 DDR2 SDRAM DIMM 240pin memory |
2 Sockets (2 banks of 1) | Chipset : Intel 946GZ Express | |
IBM Lenovo ThinkCentre M55e 9645-Q1U 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 Lenovo ThinkCentre M55e 9645-Q1U has 2 Sockets (2 banks of 1) 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.
