Collection: Dell M420 Memory Upgrades

Dell PowerEdge M420 Memory Configuration

The M420 is a Dual Processor blade with 3 DIMM slots per CPU. There are three memory channels per CPU, each memory channel managing a single DIMM slot. Along with standard RDIMMs and UDIMMs, the M420 also supports Load Reduced DIMMs, as well as options for standard or low voltage. You cannot mix different memory types. Different speeds can be mixed but the modules will function at the slowest speed installed.

Cloud Ninjas' Dell PowerEdge M420 Memory Upgrade Tips

• There are a total of 6 DIMM slots on the Dell M420 server.
• Sizes supported: 2GB, 4GB, 8GB, 16GB, or 32GB ECC Registered (RDIMM); and 2GB, 4GB or 8GB Unbuffered (UDIMM); and 32GB or 64GB Load Reduced (LRDIMM).
• DO NOT MIX DIFFERENT MEMORY TYPES.
• The M420 maxes out at 192GB of ECC Registered memory (6 x 32GB). Whereas unbuffered tops out at 48GB (6 x 8GB).
• The absolute top of the line RAM would be via load reducing memory. The Dell M420 could get all the way up to 384GB (6x64GB) Memory.
• Speed options for the PowerEdge M420 are 1866MHz, 1600MHz, 1333MHz, or 1066MHz depending on the type of memory module.
• Think Long Term! Purchase the maximum amount that your PowerEdge M420 can hold and avoid wasting time and money on modules you won't be able to use if you upgrade again.
• Buy Dell M420 memory today from Cloud Ninjas!
• The total number of memory modules that you should have in your PowerEdge M420 should equal 2, 4 or 6. To properly configure your system, install a minimum of four memory modules first.

Cloud Ninjas' Dell PowerEdge M420 Questions & Answers

1. What sizes can you use for the Dell PowerEdge M420 Server?
   The Dell PowerEdge M420 Server can be upgraded using 2 GB, 4 GB, 8 GB, 16 GB, 32 GB RDIMM.
   
   Note: The Dell PowerEdge M420 can now support 64 GB LRDIMM. Get your 64 GB kit at https://cloudninjas.com.
   
   
2. What speeds are supported by the Dell PowerEdge M420 Server?
   The Dell PowerEdge M420 Server can support up to 1600 MT/s in single, dual, and quad rank RDIMM. Quad-rank DIMM types can support speeds up to 1333MT/s.
   
   
3. What types of RAM are accepted by the Dell PowerEdge M420 Server?
   The Dell PowerEdge M420 Server supports RDIMM.
   
   
4. What is ECC Registered Memory?
   The Dell PowerEdge M420 Server supports low voltage 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.
   
   
5. What is Unbuffered Memory?
   The Dell PowerEdge M420 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.
   
   
6. What is Load Reduced Memory?
   The Dell PowerEdge M420 Server does 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.
   
   
7. Can I mix ECC Reg with ECC unbuffered or Non-ECC memory?
   The Dell PowerEdge M420 Server does not support the use of both unregistered and registered memory with ECC or the use of non-ECC memory. It is recommended to use identical memory configuration in all channels.
   
   
8. What is max configuration?
   The Dell PowerEdge M420 Server has 3 memory channels per processor and each channel supports 1 DIMM using 32 GB DIMM.
   
   
9. How many memory channels per CPU?
   The Dell PowerEdge M420 Server does not support the use of both unregistered and registered memory with ECC or the use of non-ECC memory. It is recommended to use identical memory configuration in all channels.
   
   
10. How do I identify the start of the memory channel?
    The Dell PowerEdge M420 Server has 3 memory channels per processor and each channel supports 1 DIMM. DIMM are installed beginning with processor 1, channels Al and B1 and then processor 2, channels A1 and B1; largest rank count to smallest.
    
    
11. 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.
    
    
12. 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.
    
    
13. What is the warranty on memory for the server?
    Cloud Ninjas offers a one-year warranty on fully tested, refurbished memory.