Dell backplane cable

October 22, 2021

What exactly is SAS Back Plane Cables? Dell Rack Servers

Dell Back planes are comparable to the motherboard of a personal computer and can be used to describe a motherboard of the computer. Back planes are printed circuit boards that contain connections (slots) to expand boards, and allows connectivity between the boards connected to it.

A back plane that was used in earlier computer systems was called that of 6.5 inch backplane cable, which was equipped with connectivity for expansion cards as well as a motherboard. Another location where you can find back planes is the corporate network router that is a massive router that permits the use of expansion boards as well as modules that allow for improved communication.

There are two kinds of back plane systems; an active back plane as well as an inactive back plane. In a back plane that is active, the back plane houses the slots and the circuitry required to control and manage all the connections across the various slots. A passive back plane has just the bus connectors, and only a few additional circuits. In a passive back plane system, all communication is managed through one of the expansion boards attached to the back plane.

The back view of the system

The back of the Power Edge system has I/O connectors to both add-in and embedded devices, which include video, networking serial USB and system identification and system management access ports. The majority of add-in PCI cards can be accessed through on the rear panel. This is also the primary place to connect PSUs (PSU) and includes ports for connecting AC/DC. Based on the configuration of your system your drive’s back planes


The Power Edge R640 features that are supported are listed below:


* 2.5 inch (x8) SAS, SATA as well as NVMe the back plane.


* 2.5 inch (x10) SAS, SATA and NVMe Back plane.


* 2.5 inch (x10) SAS, SATA or NVMe back plane as well as 2.5 inches (x2) SAS or SATA back plane.


* 3.5 inch (x4) SAS or SATA back plane.




The Power Edge R640 server features the extraordinary performance, value and power effectiveness that comes with the new 2nd generation Intel Xeon Scalable Processor. These processors offer high-performance regardless of your constraints–floor space power, budget, or power–and for a variety of tasks, from the most complex research to critical infrastructure and web-serving applications.


Alongside the increased performance in raw terms, the performance of I/O can also be achieved by Intel Integrated I/O, which can cut down on latency by introducing more lanes, and double the bandwidth. This reduces storage and network bottlenecks and improves processor performance capabilities. This is because the 2nd Generation Intel Xeon Processor Scalable Family is the basis for a highly efficient database center system. It’s the most sophisticated compute core that has a modern core micro architecture that has been optimized to boost the speed of a broad variety of computing workloads. The most important attributes are:

* More Per-Core Performance: Up To 28 cores (24 cores with R440) provide superior performance, as well as scaling for computationally intensive workloads across storage, computing and network applications. It is the 2nd generation of Intel Xeon Scalable Processors can give you even more frequencies or cores or both.


* More Memory Bandwidth/Capacity 50% increase in memory capacity and bandwidth. 6 memory channels as opposed to. four memory channels in the previous generations, designed for memory-intensive applications.


* Expanded I/O 48 PCIe lanes with 3.0 throughput and bandwidth for high-demanding I/O-intensive tasks.


* Intel Ultra Path Interconnect (UPI) Three Intel UPI channels increase scalability of the platform up to as high as eight sockets. It also increases bandwidth across CPUs when I/O is a major part of the tasks.

* Intel Advanced Vector Extensions 512 (Intel AVX-512) with just one AVX512 fused multiplier add (FMA) execution unit. SKUs that have support for Advanced RAS include the second FMA execute unit.


* Security without compromise A near-zero overhead for encryption enables greater performance for all transactions that require secure data by enhancing hardware protection.


* Intel Deep Learning Boost: Accelerate data-intensive work within the CPU by using the ability to infer.




The table below outlines the features that are supported at a high level by the chipset used on the Power Edge R440.


* ACPI Power Management Logic Support, Revision 4.0a


* PCI Express Base Specification, Revision 3.0


* Integrated Serial ATA host controller, allows data transfer rates that can reach 6 GB/s across all ports


* xHCI USB controller that comes with Super Speed USB 3.0 ports


* Direct Media Interface


* Serial Peripheral Interface


* Enhanced Serial Peripheral Interface


* Flexible I/O – Allows certain high-speed I/O signals be set up as PCIe root ports and the PCIe uplink to be used with PCH specifics, SATA (and sSATA) as well as USB 3.0.


* General Purpose Input Output (GPIO)

The interface is called Low Pin Count interrupt controller and timer functions

Memory Operating Modes Performance Optimized or Optimizer Mode:


Prioritizes performance, but does not offer any additional RAS features other than the basic ECC (Error-Correcting Code). Memory mirroring consists of two adjacent memory channels, which are designed to write the same information to both channels. If one channel fails or is affected by an error one channel will continue to transfer data. It’s a fantastic protection for systems that require uninterrupted operation, but it can cut capacity of memory by half, could double the price per gigabyte and may increase the energy consumption.


Memory 23 Fault-resistant memory is an Dell developed technology that is patented and works in conjunction with the VMWare Hypervisor to provide a fault-resistant zone that safeguards Virtual machines against the consequences of memory errors. Memory sparing reduces downtime caused by correctable errors through assigning one rank (64-bit large data area on DIMM) per channel (Single Rank Spare Mode) or two ranks per channel (Multi Rank Spare Mode) as memory spares. If a problem that is correctable occurs in a channel or rank then it is moved into the reserve rank during the time it’s running. OS operates. This stops the error from causing failure. Memory sparing decreases the capacity of memory to one rank for each channel, or 2 ranks for each channel (depending the selection of the Single Rank and Multi Rank is chosen) and may increase the price per gigabyte.

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