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Memory Upgrade for Dell Latitude C640
Dell Latitude C640 memory upgrade specification, Latitude C640 maximum memory, memory speed, and memory upgrade options.
Upgrade memory on Dell Latitude C640 upto a maximum of 1GB
PC2100 DDR SDRAM SODIMMs, with maximum 512MB per slot in 2 memory slots. The Dell Latitude C640 takes the PC2100 DDR SDRAM SODIMMs Memory Type.
| Dell Latitude C640 Memory Upgrade Specification | ||||
|---|---|---|---|---|
| Standard Memory | Maximum Memory | Memory Expansion | CPU Type | Model/Chipset |
| 128 MB (removable) | 1GB PC2100 DDR SDRAM SODIMMs |
2 sockets | Intel Mobile Pentium 4-M | 400MHz FSB, Intel 845MP Chipset |
Dell Latitude C640 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 Dell Latitude C640 has 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.
