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Memory Upgrade for Sony VAIO PCV-RX640
Sony VAIO PCV-RX640 memory upgrade specification, VAIO PCV-RX640 maximum memory, memory speed, and memory upgrade options.
Upgrade memory on Sony VAIO PCV-RX640 upto a maximum of 512 MB
PC133 SDRAM Modules, with maximum 256MB per slot in 2 memory slots. The Sony VAIO PCV-RX640 takes the PC133 SDRAM Modules Memory Type.
| Sony VAIO PCV-RX640 Memory Upgrade Specification | ||||
|---|---|---|---|---|
| Standard Memory | Maximum Memory | Memory Expansion | CPU Type | Model/Chipset |
| 256 MB (removable) | 512 MB PC133 SDRAM Modules |
2 sockets | 1.3GHz Intel Celeron | 133MHz FSB |
Sony VAIO PCV-RX640 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 Sony VAIO PCV-RX640 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.
