Dell PowerEdge R640 – This is the 2nd video in our R640 server series. In this video, we will be covering memory! We will go over the supported types of memory, supported speeds, and supported capacities. We will also teach you how to properly install new memory into your server. The R640 server has a total of 24 DDR4 DIMM slots. This video series includes:

1. CPUs -    • Dell PowerEdge R640 Server CPUs | Int...  
2. Memory -    • Dell PowerEdge R640 Server Memory Ove...  
3. Drives -    • Dell PowerEdge R640 HDDs & SSDs | Har...  
4. Network Cards -    • Dell PowerEdge R640 Server NICs | Net...  
5. Different Chassis Types -    • Dell PowerEdge R640 Overview | Differ...  
6. RAID -    • Dell PowerEdge R640 RAID Overview | R...  
7. BIOS -    • Dell PowerEdge R640 Server BIOS Updat...  
8. iDRAC -    • Dell PowerEdge R640 Server iDRAC Upgr...  
9. Mass Updates -    • Dell PowerEdge R640 Mass Updates | BI...  
10. How to set IP Address -    • Dell PowerEdge R640 Server IP | How T...  
11. How to Install VMware ESXi -    • Dell PowerEdge R640 VMware ESXi | How...  
12. Power Supplies -    • Dell PowerEdge R640 Power Supplies Ov...  
13. How to Rack -    • Dell PowerEdge R640 | How To Rack a S...  
14. How to install Windows Server 2016 -    • Dell PowerEdge R640 Windows Server | ...  

If there is anything else you would like to see, then please drop a comment, and let us know. We want this video series to be a great tool for the Dell community. Ask questions. Answer questions. Help each other out.

The Dell PowerEdge R640 server operates on DDR4 memory. There are a total of 24 DIMM slots with 12 memory channels. The white slots are the start of a memory channel while the black slots are the end of the channel. There are two DIMM slots per channel. Each CPU controls 12 DIMM slots. Module speed options include 2133MT/s, 2400MT/s, and 2666MT/s, 2933MT/s. The CPU that you have installed will determine that fastest speed that your modules will run at. The fastest speed for 1st Generation Scalable CPUs is 2666MT/s. The fastest speed 2nd Generation Scalable CPUs is 2933MT/s. 3200MT/s modules can be install, but will clock down to the fastest supported speed of the CPU. Module capacity options include: 4GB, 8GB, 16GB, 32GB, 64GB, 128GB, 256GB, and 512GB. 128GB can only be used with Load Reduced memory. 256GB and 512GB can only be used with Intel Optane Persistent Memory. The R640 accepts three types of RAM: ECC Registered (RDIMM), Load Reduced (LRDIMM), and Intel Optane Persistent Memory (PMem). When using Intel Optane and Load Reduced memory, you can achieve an overall greater RAM capacity. With RDIMMs, you can achieve 1.5TB with a configuration of 24x64GB. With LRDIMMs, you can reach 3TB with 24x128GB. Finally, with Intel Optane, 6TB can be reached with 12x512GB. If you combine Intel Optane and Load Reduced memory, you can reach 7.68TB with 12x128GB LRDIMMs and 12x512GB Intel PMem.

Do you want to buy a refurbished Dell PowerEdge R640 server? You can custom configure your own server. We have 4 Bay LFF, 8 Bay SFF, 10 Bay SFF, 10 + 2 Bay SFF, and 10 Bay NVMe systems in stock. https://cloudninjas.com/products/dell...

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