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Memory Upgrade for Dell Poweredge 840

Dell Poweredge 840 memory upgrade specification, Poweredge 840 maximum memory, memory speed, and memory upgrade options.

Upgrade memory on Dell Poweredge 840 upto a maximum of 8GB
PC2-4200/5300 ECC DDR2 SDRAM DIMMs. Supports Dual Channel DDR2., with maximum per slot in 4 (2 banks of 2) Install in pairs memory slots. The Dell Poweredge 840 takes the PC2-4200/5300 ECC DDR2 SDRAM DIMMs. Supports Dual Channel DDR2. Memory Type.

Dell Poweredge 840 Memory Upgrade Specification
Standard Memory Maximum Memory Memory Expansion CPU Type Model/Chipset
512MB 8GB
PC2-4200/5300 ECC DDR2 SDRAM DIMMs. Supports Dual Channel DDR2.
4 (2 banks of 2) Install in pairs Intel Celeron D or Pentium D or Xeon Intel 3000 Chipset
 

Dell Poweredge 840 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 Poweredge 840 has 4 (2 banks of 2) Install in pairs 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.