Size (HxW)
Motherboard dimensions in height and width. It is assumed that the traditional placement of motherboards is vertical, so in this case one of the dimensions is called not the length, but the height.
Motherboard sizes are largely determined by their form factors (see above), however, the size of a particular motherboard may differ slightly from the standard adopted for this form factor. In addition, it is usually easier to clarify the dimensions according to the characteristics of a particular motherboard than to look for or remember general information on the form factor. Therefore, size data can be given even for models that fully comply with the standard.
The third dimension — thickness — is considered less important for a number of reasons, so it is often omitted.
Max. clock frequency
The maximum RAM clock speed supported by the motherboard. The actual clock frequency of the installed RAM modules should not exceed this indicator — otherwise, malfunctions are possible, and the capabilities of the “RAM” cannot be used to the fullest.
For modern PCs, a RAM frequency of
1500 – 2000 MHz or
less is considered very low,
2000 – 2500 MHz is modest,
2500 – 3000 MHz is average,
3000 – 3500 MHz is above average, and the most advanced boards can support frequencies of
3500 – 4000 MHz and even
more than 4000 MHz.
XMP
The ability of the motherboard to work with RAM modules that support
XMP (Extreme Memory Profiles) technology. This technology was developed by Intel; it is used in motherboards and RAM blocks and only works if both of these system components are XMP compliant. A similar technology from AMD is called AMP.
The main function of XMP is to facilitate system overclocking (“overclocking”): special overclocking profiles are “sewn” into the memory with this technology, and if desired, the user can only select one of these profiles without resorting to complex configuration procedures. This is not only easier, but also safer: every profile added to the bar is tested for stability.
M.2 version
The version of the M.2 interface determines both the maximum data transfer rate and the supported devices that can be connected via physical M.2 connectors (see the corresponding paragraph).
The version of the M.2 interface in the specifications of motherboards is usually indicated by the number of connectors themselves and by the PCI-E revision provided for in each of them. For example, the entry “3x4.0” means three connectors capable of supporting PCI-E 4.0; and the designation “2x5.0, 1x4.0” means a trio of connectors, two of which support PCI-E 4.0, and another one supports PCI-E 5.0.
1x PCI-E slots
Number of PCI-E (PCI-Express) 1x slots installed on the motherboard. There are
motherboards for 1 PCI-E 1x slot,
2 PCI-E 1x slots,
3 PCI-E 1x ports and even more.
The PCI Express bus is used to connect various expansion cards — network and sound cards, video adapters, TV tuners and even SSD drives. The number in the name indicates the number of PCI-E lines (data transfer channels) supported by this slot; the more lines, the higher the throughput. Accordingly, PCI-E 1x is the basic, slowest version of this interface. The data transfer rate for such slots depends on the PCI-E version (see "PCI Express Support"): in particular, it is slightly less than 1 GB / s for version 3.0 and slightly less than 2 GB / s for 4.0.
Separately, we note that the general rule for PCI-E is as follows: the board must be connected to a slot with the same or more lines. Thus, only single-lane boards will be guaranteed to be compatible with PCI-E 1x.
Steel PCI-E connectors
The presence of reinforced
steel PCI-E connectors on the "motherboard".
Such connectors are found mainly in gaming (see "In the direction") and other advanced varieties of motherboards, designed to use powerful graphics adapters. Steel slots are usually made PCI-E 16x, just designed for such video cards; in addition to the slot itself, its attachment to the board also has a reinforced design.
This feature offers two key advantages over traditional plastic connectors. Firstly, it allows you to install even large and heavy video cards as reliably as possible, without the risk of damaging the slot or board. Secondly, the metal connector plays the role of a protective screen and reduces the likelihood of interference; this is especially useful when using multiple video cards installed side by side.
USB C 3.2 gen1
The number
of USB-C 3.2 gen1 connectors provided on the motherboard.
USB-C connectors (all versions) are used to connect to the "motherboard" USB-C ports located on the outside of the case (usually on the front panel, less often on the top or side). With a special cable, such a port is connected to the connector, while one connector, usually, works with only one port. In other words, the number of connectors on the motherboard corresponds to the maximum number of USB-C chassis connectors that can be used with it.
Recall that USB-C is a relatively new type of USB connector, it is distinguished by its small size and double-sided design; such connectors have their own technical features, so separate connectors must be provided for them. Specifically, USB 3.2 gen1 (formerly known as USB 3.1 gen1 and USB 3.0) provides data transfer speeds of up to 4.8 Gbps. In addition, on a USB-C connector, this version of the connection can support USB Power Delivery technology, which allows you to supply power to external devices up to 100 W; however, this function is not mandatory, its presence in the connectors of one or another "motherboard" should be specified separately.
ARGB LED strip
Connector for connecting an addressable LED strip as a decorative lighting for a computer case. This type of "smart" tape is based on special LEDs, each of which consists of an LED light and a built-in controller, which allows you to flexibly control the luminosity using a special digital protocol and create amazing effects.
DisplayPort
