Motherboards - a selection guide for businesses
The motherboard is the foundation of every server, workstation, and business computer. It determines which processors, memory, and expansion cards can be installed, as well as how stably the entire system operates under load. We have prepared a guide explaining the types of motherboards available in Senetic's offer and advising on what to pay attention to when choosing a motherboard for a specific application in IT infrastructure.
What is a motherboard?
A motherboard is a multi-layer printed circuit board (PCB) that physically and electrically connects the key components of a computer: the processor (CPU), RAM, data storage devices, expansion cards, and input-output devices. It serves as the central communication hub – data between components is transmitted via paths and buses routed on the board.
The most important elements of a motherboard are:
- Processor socket – a mechanical and electrical connection where the CPU is mounted. The type of socket determines which processors the motherboard is compatible with.
- DIMM memory slots – slots for RAM modules. The number of slots and the number of memory channels supported by the processor determine the maximum capacity and bandwidth of the memory.
- Chipset (PCH) – a chip that supports part of the motherboard's interfaces, including SATA and USB ports, additional PCIe lanes, and network controllers. In modern platforms, the memory controller and main PCIe lanes are integrated with the processor, and in some server platforms, the chipset is absent – its functions are taken over by the processor.
- VRM power section (Voltage Regulator Module) – processes and stabilizes the voltage supplied to the processor. For high-performance processors, an extensive and well-cooled VRM section is essential for stable operation under full load.
- PCIe, M.2, SATA, and USB connectors – interfaces for graphics cards and accelerators, NVMe SSDs, RAID controllers, network cards, and peripheral devices.
- UEFI/BIOS firmware – firmware that initializes components before the operating system starts.
What distinguishes professional motherboards from consumer ones?
Server motherboards and those for workstations offer features that are usually absent in consumer hardware: support for ECC memory (including RDIMM and LRDIMM modules), remote management via IPMI/BMC, extensive and efficiently cooled VRM sections, support for multiprocessor configurations, and designs engineered and tested for 24/7 continuous operation. The choice of motherboard primarily depends on the selected processor and the intended use of the computer – in a business environment, this directly impacts operational continuity and maintenance costs.
Types of motherboards
The offer of motherboards in the B2B segment includes several types of designs tailored for different applications – from multiprocessor servers to compact edge systems.
Server motherboards
Server motherboards are designed for data centres, corporate server rooms, and edge computing solutions. Their characteristic features include:
- Support for ECC memory – RDIMM, LRDIMM, and 3DS modules. Current platforms use DDR5 memory, while older ones use DDR4.
- Integrated BMC controller with IPMI support (in newer models also Redfish) and a dedicated Ethernet port for management.
- Support for dual-processor configurations (dual-socket).
- Latest generation PCI Express interfaces – current platforms use PCIe 5.0, and in selected models, support for CXL and OCP 3.0 slots for network cards.
- Stable operation under high load – extensive VRM sections and component placement adapted for airflow in rack enclosures.
Workstation motherboards
Workstations require motherboards that combine high computational performance with features known from server environments. Motherboards of this class offer:
- up to 8 channels of RAM with ECC RDIMM support (depending on the platform and processor model),
- a large number of PCIe 5.0 lanes – important for installing multiple graphics cards or AI accelerators,
- stable operation in CAD applications, 3D rendering, engineering simulations, and data analysis.
SoC (System on Chip) motherboards
In SoC motherboards, the processor is permanently soldered, and a single chip connects the CPU cores with input-output controllers, often also with graphics and network controllers. SoC motherboards are intended for:
- edge computing devices and embedded systems,
- network devices, IoT gateways, and compact NAS servers,
- applications where low power consumption and small dimensions are crucial.
A limitation is the lack of processor replacement options and a smaller number of PCIe slots and memory sockets.
Desktop motherboards
Desktop motherboards with AM5 (AMD Ryzen) and LGA 1700 and LGA 1851 (Intel Core) sockets are suitable for office computers and basic workstations. They use popular chipsets and offer PCIe 4.0 or 5.0 slots, M.2 NVMe connectors, and USB ports in current standards. The type of supported memory depends on the platform: AM5 and LGA 1851 motherboards work exclusively with DDR5 memory, while LGA 1700 motherboards can work with either DDR4 or DDR5, depending on the model.
How to choose a motherboard?
Choosing a motherboard for a specific application requires analysing several criteria simultaneously:
- System purpose – production server, rendering workstation, office computer, or edge system? Each scenario requires a different class of motherboard, so the first step should be to analyse the application requirements and expected load.
- Compatibility with the processor – the motherboard supports a specific socket and generations of processors. The list of supported processors should always be checked on the motherboard manufacturer's website.
- Format and case – the motherboard format must match the case. The most commonly used formats are ATX, E-ATX, EEB, microATX, and mini-ITX, and in rack servers, also custom formats from manufacturers.
- RAM – what capacity is needed now and in the next few years? Is ECC support required? How many memory channels does the platform provide?
- Expansion and PCIe slots – how many graphics cards, accelerators, or network cards are to be installed? Is PCIe 5.0 and lane bifurcation support required?
- Management features – in servers, IPMI/BMC is practically essential. In workstations, it remains optional but facilitates administration with a larger number of devices.
- Network connectivity – server motherboards offer built-in 1 GbE or 10 GbE ports, while faster connections (25 GbE and above) are provided by PCIe or OCP 3.0 network cards. Built-in Wi-Fi modules are primarily found in desktop motherboards.
- Audio and multimedia features – in most business applications, they are of secondary importance. In workstations for video and audio production, dedicated cards or external interfaces are more commonly used than integrated audio chips.
Motherboard manufacturers available at Senetic
Senetic offers motherboards from renowned manufacturers specialising in server and workstation segments:
- Supermicro – one of the leading manufacturers of server motherboards. The offer includes single and dual-processor designs with support for ECC RDIMM, LRDIMM, and 3DS memory, extensive IPMI, and formats tailored for rack enclosures. Supermicro motherboards are widely used in data centres around the world.
- ASUS – a manufacturer of server motherboards and workstation motherboards. ASUS motherboards are distinguished by extensive power sections and support for current standards.
- ASRock – the ASRock Rack brand offers server and workstation motherboards with a favourable function-to-price ratio.
- Gigabyte – a manufacturer of motherboards and complete server platforms, also for OEM suppliers.
- Intel – server motherboards for Intel Xeon processors, designed for full compatibility with the Intel platform.
Frequently Asked Questions (FAQ)
What is the difference between a server motherboard and a desktop motherboard?
A server motherboard is designed for continuous 24/7 operation and installation in rack enclosures. Unlike a desktop motherboard, it supports ECC RDIMM and LRDIMM memory, has a built-in BMC controller for remote management (IPMI), and often allows for the installation of two processors.
How can I check if a motherboard is compatible with a processor?
Compatibility should be checked on three levels: socket (the socket must match the processor), chipset (it must support the specific generation of processors and required features), and BIOS/UEFI version (older motherboards may require firmware updates to support newer processors). The most reliable source of information is the CPU Support List on the motherboard manufacturer's website, and compatibility of memory and other components is confirmed by the Qualified Vendor List (QVL).
What does the motherboard format mean and how do I match it to a case?
The format defines the dimensions of the motherboard and the placement of mounting holes and connectors. The most popular formats are ATX (305 × 244 mm), microATX (244 × 244 mm), and mini-ITX (170 × 170 mm). Workstations and servers also use EEB/SSI-EEB (305 × 330 mm) and E-ATX, whose dimensions vary depending on the manufacturer. The case must be compatible with the motherboard format, and in rack servers, the height of the case (1U, 2U, 4U) and space for cooling are also important. The format directly affects the size of the computer and upgrade possibilities.
Does every motherboard support ECC memory?
No. Support for ECC memory requires simultaneous support from the processor, chipset, and BIOS. Full support for ECC memory, including RDIMM and LRDIMM modules, is provided by server motherboards and workstation motherboards. In consumer motherboards, ECC is usually unavailable or limited to unbuffered modules (UDIMM).
What is IPMI used for on a motherboard?
IPMI (Intelligent Platform Management Interface) is a standard for remote server management regardless of the state of the operating system, implemented by the BMC (Baseboard Management Controller). It allows monitoring of temperatures, voltages, and component status, remote powering on and restarting the machine, updating the BIOS, and accessing a virtual console (KVM over IP) and virtual media.
How many processors can be installed on one motherboard?
Desktop motherboards and most workstation motherboards support one processor. Dual-socket server motherboards allow for the installation of two processors, which requires an appropriate power section, cooling, and a fast connection between the processors.
Can a motherboard be replaced without reinstalling the operating system?
In many cases, this is possible, but it requires preparation. Changing the chipset or disk controllers may require installing new drivers, and a differently recognised storage controller may prevent the system from booting. In Windows systems, replacing the motherboard may also require reactivating the license, and with a drive encrypted with BitLocker, providing the recovery key. In server environments, companies often use identical models of motherboards, which simplifies the replacement procedure. Before replacement, a full backup of the system and data should be made, and media with current drivers should be prepared.
What should I pay attention to when buying a motherboard for a workstation?
The most important parameters are: processor socket, number of channels and type of supported ECC memory, number and generation of PCIe slots (important for graphics cards and accelerators), disk connectors, motherboard format and compatibility with the case, quality and cooling of the VRM section, and – optionally – availability of IPMI/BMC for remote diagnostics. It is also worth checking how long the manufacturer provides firmware updates for a given model.
