The Essential Parts of a Server PCB

The Essential Parts of a Server PCB

The Server PCB market is a growing one as data centers demand advanced servers to meet the demands of cloud computing, AI and other data-intensive applications. The server motherboard is the central nexus through which all other components are interconnected and external devices attached.

The power backplane PCB ensures that the server system has the power it needs to function. It should be regularly checked for signs of damage.

Power Backplane

The power backplane is an integral part of a server PCB. It is in charge of supplying the power to other system components and controlling the power supply to prevent overloading. This is essential to ensure that the system will operate safely and reliably. It also helps to protect the server from damage caused by overheating or other power-related issues.

The server backplane has several characteristics that you should consider when selecting one for your project. Its durability, performance and cost are all important Server PCB factors to consider. In addition, you should consider the current and voltage requirements of the system components that will be connected to the power backplane. You should also consider the cooling requirements of the power backplane.

Another feature of a server backplane is its ability to allow modules to be removed and replaced without shutting down the system. This capability is known as hot-swapping, and it makes maintenance at 24/7 factories seamless.

The backplane power board must provide a high level of inrush current control. This is because many of the modules plugged into the backplane contain large input capacitors for DC/DC converters and large holdup capacitors to pass power interruption tests (IEC61000-4-29). These elements may cause high levels of inrush current during a hot-swapping event. TI’s eFuses have built-in local current limiting and short circuit protection to help isolate these failures from affecting other modules or the backplane power supply.


The motherboard is the central nexus through which all other server components are interconnected. It is also the home base for all primary devices like the CPU, GPU and expansion slots. It is sometimes referred to as the brains of a computer or an IT professional’s “home base.”

It connects the central processing unit, memory, hard drives, optical drives and video cards to the rest of the system via ports on the case. It also allows connection of expansion cards directly or through cables.

A motherboard typically consists of six to 14 fiberglass layers, copper connecting traces and copper planes that support power distribution and signal isolation. It can have a number of form factors, depending on budget and needs. The most common are Advanced Technology Extended and Low Profile Extension, with Balance Technology Extended, Pico BTX and Mini Information Technology Extended motherboards offering smaller form factors.

The main chip on a motherboard is the central processor unit (CPU). The CPU is responsible for executing the instructions in a program. It includes an arithmetic logic unit, floating point unit and registers. The latest Server PCB Supplier CPUs can offer additional levels of specialization, including graphical processing units and tensor processing units for machine learning and simulations. The motherboard also contains a CMOS battery (also known as the memory battery, clock battery or real-time clock battery) to store settings when the computer is turned off.

Embedded Controller

Embedded controllers are a type of computer system designed to perform a specific function within a larger system. They are found in a wide range of technological applications and are an essential component of any modern computer system. They are often small in appearance but powerful in function and can be powered by a variety of power inputs, including DC 12V or 24V adapter. They also feature a variety of I/O ports and can support mainstream or embedded operating systems.

The growth of IoT devices and edge computing is driving demand for smaller, more compact servers that can be integrated into various systems. Single board servers are a perfect solution for this need, as they integrate all the necessary components into one board, including the central processing unit (CPU), memory, storage, and input/output ports.

The motherboard is the heart of a server PCB, and serves as the communication facilitator and technological translator for all the other components in the system. It holds the CPU, provides firmware, and offers a series of slots for expansion devices, such as network or graphics cards.

As the world continues to adopt artificial intelligence, the need for high-performance servers is growing rapidly. To meet this demand, manufacturers must design PCBs that are more efficient and provide better thermal management. This is especially important because servers can produce a lot of heat, which must be dissipated efficiently to avoid overheating.


Memory is one of the most important parts of a server PCB. It allows the system to store and process data and provide computing capabilities. Server PCBs use high-speed memory technologies to support higher data transfer rates. This requires specialized PCB designs to ensure signal integrity.

Server memory can be unbuffered or registered ECC (error-correcting code). Unbuffered memory doesn’t include a register to buffer commands between the module and the system memory controller. It can be found on entry-level and workstation servers. Registered ECC memory includes a register that holds requested data for a clock cycle before sending it on. This reduces the electrical load on the memory controller and makes a system more stable.

There are different types of memory modules, including Single In-Line Memory Module (SIMM) and Dual In-Line Memory Module (DIMM). DIMMs have more pins and offer greater memory capacity than SIMMs. They also have power and ground connections on both sides, unlike SIMMs which only have one side of pins.

PCBs that support fast memory have to follow strict timing requirements. Incorrectly routing a clock signal can result in the loss of data. To avoid this, a design should use decoupling capacitors in the vicinity of the power ball to minimize signal-to-ground noise. The size of these capacitors must be adequate to accommodate high-speed transient current demand.

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