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Memory Upgrade for Dell PowerEdge R905

Dell PowerEdge R905 memory upgrade specification, PowerEdge R905 maximum memory, memory speed, and memory upgrade options.

Upgrade memory on Dell PowerEdge R905 upto a maximum of 256GB
PC2-5300 DDR2-667 240pin Registered ECC SDRAM DIMM, with maximum per slot in 32 Sockets memory slots. The Dell PowerEdge R905 takes the PC2-5300 DDR2-667 240pin Registered ECC SDRAM DIMM Memory Type.

Dell PowerEdge R905 Memory Upgrade Specification
Standard Memory Maximum Memory Memory Expansion CPU Type Model/Chipset
0MB 256GB
PC2-5300 DDR2-667 240pin Registered ECC SDRAM DIMM
32 Sockets Up to four quad-core or dual-core AMD Opteron 8000 Series processors
Broadcom HT-2100 and HT-1100 Chipset
 

Dell PowerEdge R905 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 R905 has 32 Sockets 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.