Collection: Dell PowerEdge R905 RAM Memory Upgrades

Dell PowerEdge R905 Memory Configuration

The R905 is a Quad Processor system with 8 DIMM slots per CPU. There are four memory channels per CPU. Each memory channel manages two DIMM slots. Different speeds can be mixed but the modules will function at the slowest speed installed.

Cloud Ninjas' Dell PowerEdge R905 Memory Upgrade Tips

• The total number of DIMM slots for the R905 is 32.
• The PowerEdge R905 supports 512MB, 1GB, 2GB, 4GB, 8GB fully buffered DDR2 DIMMs.
• You can upgrade your PowerEdge R905 memory to a maximum of 128GB (two-processor configurations) or 256GB (four-processor configurations)
• 667-MHz registered DDR-II memory modules are supported in all memory sizes.
• The R905 supports single rank, or dual rank memory.
• Each processor has two memory channels, organized in sets of four memory module slots per channel.
• Think Long Term! Purchase the maximum amount that your PowerEdge R905 can hold and avoid wasting time and money on modules you won't be able to use if you upgrade again.
• The total number of memory modules that you should have in your PowerEdge R905 should equal 4, 8, 12, 16, 24, or 32. To properly configure your system, install a minimum of four memory modules first.

Cloud Ninjas Dell PowerEdge R905 Questions & Answers

1. What sizes can you use for the R905?
The PowerEdge R905 server can be upgraded using 512MB, 1, 2, 4, and 8GB DIMM. Get your kit at https://cloudninjas.com/


2. What speeds are supported by the Dell PowerEdge R905?
The Dell PowerEdge R905 Server supports RDIMM.


3. What is ECC Registered Memory?
The Dell PowerEdge R905 Server supports registered memory with ECC. ECC memory detects and corrects memory errors within the server environment. Registered (also called buffered) memory modules register between DRAM modules and the system's memory controller. ECC Registered Memory transfers less electrical load to your memory controller which makes it more stable and reliable


4. What is Unbuffered memory?
The R905 Server does not support unbuffered memory with ECC. Unbuffered memory is memory that has no register between your DRAM and your system's memory controller.


5. What is Load Reduced Memory?
The R905 Server does not support load reduced DIMM (LRDIMM). Load reduced DIMM is designed with a buffer chip (or chips) to replace the register to help minimize loading, the LRDIMM increases server system memory capacity and speed. LRDIMM differs from low capacity, low voltage registered memory modules (LV RDIMM).


6. Can I mix ECC Reg with ECC unbuffered or Non-ECC memory?
The Dell PowerEdge R905 Server does not support unbuffered memory with ECC. Unbuffered memory is memory that has no register between your DRAM and your system's memory controller.


7. What is Max Configuration for the R905?
The Dell PowerEdge R905 Server supports the standard maximum configuration of 256GB using 32x 8GB RDIMM. Get your kit at https://cloudninjas.com/.


8. How many memory channels per CPU?
The Dell PowerEdge R905 Server has 4 channels which house 8 sockets, per processor with a total of 32 sockets in a quad processor configuration.


9. How do I identify the start of the memory channel?
The Dell PowerEdge R905 Server, requires memory to be installed into the first white channel marked A1 for Processor 1 and then Processor 2, 3, and 4.


10. Where can I order memory for my server?
Order your memory at https://cloudninjas.com/ by finding and selecting the memory package that is right for you.


11. How soon will my RAM arrive?
Orders placed before 8 am are set for same day processing and shipping. Delivery times vary based on carrier and location.


12. What is the warranty on memory for the server?
Cloud Ninjas offers a one-year warranty on fully tested, refurbished memory.


13. Is this RAM Dell labeled or Dell branded?
No. The memory shipped from Cloud Ninjas is compatible with your Dell system. However, it will not have a Dell sticker. We ship major brands such as Samsung, Hynix and Micron.