RU232796U1 - Motherboard of the server device - Google Patents

Abstract

The utility model relates to computing equipment, in particular to the design of motherboards for server devices intended for installation in universal rack chassis, for example, in data centers. The server device comprises a case 1 with a front panel 2, to which five slots 3 for NIC OCP 3.0 expansion cards are brought out. The case is made in a standard 19-inch 1U form factor, which ensures compatibility with various server racks and cabinets. Inside the case 1, there is a motherboard 4, including a processor 5, the first and second groups of RAM modules 6 and 7, voltage regulator modules (VRMs) 8 and 9, as well as five NIC OCP 3.0 network card connectors. Voltage regulator modules 8 and 9 (VRMs) are motherboard components that are responsible for supplying stable voltage to the processor 5 and other components. Modules 8 and 9 convert voltage from the power source to a lower voltage required for the processor 5 and other components. Technical result: increased productivity.

Description

The field of technology to which the utility model relates

The utility model relates to computing technology, in particular to the design of motherboards for server devices intended for installation in universal chassis racks, for example, in data processing centers.

State of the art

The prior art discloses a server device comprising a case, inside which is placed a motherboard including a processor, memory modules, voltage regulator modules, and a network expansion card connector (RU 2389058, published 10.05.2010). The disadvantage of this known device is the insufficient number of PCIe channels.

The essence of the utility model

The utility model solves the problem of expanding the operational capabilities of the motherboard by increasing the number of PCIe channels.

The technical result achieved: increased productivity due to the ability to connect up to five high-speed PCIe x16 devices on the front panel of the device, including the utility model.

The specified technical result is achieved in that the motherboard of the server device contains a processor having five outputs for PCIe x16 channels and located between the first and second groups of RAM modules, voltage regulator modules (VRM), five connectors of NIC OCP 3.0 network cards located on one side of the motherboard, wherein the central three mentioned connectors of the network cards are connected to the first, second and third outputs of the said processor facing the same side of the motherboard, and the leftmost and rightmost of the mentioned connectors of the network cards are connected to the fourth and fifth outputs of the said processor facing the opposite side of the motherboard.

The far left and far right of the network card connectors are connected to the fourth and fifth processor outputs by tracks that go around the first and second groups of memory modules.

A special feature of the utility model is the presence of five NIC OCP 3.0 expansion slots located on the front panel of the server device.

List of drawing figures

Fig. 1 shows the general appearance of the device.

Fig. 2 shows the front panel view of the device.

Fig. 3 shows a general view of the motherboard.

Implementation of a utility model

Existing motherboards and server devices (platforms) have a small number of expansion slots on the front panel, which limits computing capabilities.

This utility model is a computing switching device, which is a motherboard of a server device (server platform) in a 1U solution of a 19-inch form factor.

Traditional server platforms typically have a limited number of expansion slots, which limits the ability to connect high-performance network devices. In addition, expansion slots are traditionally located on the rear panel of server devices, which in some cases is inconvenient when operating them.

The increase in the number of expansion slots is associated with an increase in the number of complex high-speed differential PCIe buses, which require strict topology requirements. The increase in the number of expansion slots also requires the routing of PCIe buses exiting the processor on the opposite side of the board (not where the PCIe connectors are located), bypassing the buses and connectors of RAM modules (DDR5).

When expanding the communication capabilities of server devices, the task arises of minimizing the number of board layers and blind vias in conditions of limited PCIe bus length.

This utility model is a motherboard on which a server processor with five PCIe x16 channels is installed. The main goal of the development was to provide the ability to bring all five PCIe x16 channels to the front panel of the server while ensuring the compactness of the device and the minimum length of the connecting conductors.

The problem is solved by placing all expansion board connectors on the same side of the board.

In the course of solving the task, a multilayer printed circuit board was developed, on the outer layers of which all five PCIe x16 channels are located. This allowed to minimize the number of vias and board layers, as well as to meet the requirements for the length of conductors.

The server device using the present utility model contains a case 1 with a front panel 2, to which five slots 3 for NIC expansion cards OCP 3.0 are brought out. The case is made in a standard form factor of 19 inches 1U, which ensures compatibility with various server racks and cabinets.

Inside the case 1 there is a motherboard 4, including a processor 5, the first and second groups of RAM modules 6 and 7, voltage regulator modules (VRM) 8 and 9, as well as five NIC OCP 3.0 network card connectors (positions 9-13 in Fig. 3).

Voltage Regulator Modules 8 and 9 (VRMs) are motherboard components that are responsible for providing stable voltage to the CPU 5 and other components. Modules 8 and 9 convert the voltage from the power supply to the lower voltage required by the CPU 5 and other components.

Processor 5 has five outputs 14-18 for PCIe x16 channels and is located between the first 6 and second 7 groups of memory modules (DDR5). Thus, processor 5 occupies the central place on the motherboard, and the RAM modules are symmetrically located to the left and right of it.

All five connectors 9-13 of the NIC OCP 3.0 network cards are located on one side of the motherboard 4 and, the corresponding slots 3 are brought out to the front panel of the case 1.

The central three connectors of network cards 10, 11 and 12 are connected to the first, second and third outputs (positions 16, 17 and 18 in Fig. 3) of processor 5, facing the same side of the motherboard on which connectors 10-12 are located.

The leftmost 9 and rightmost 13 of the network card connectors are connected to the fourth and fifth outputs (positions 14 and 15 in Fig. 3) of the processor 5, facing the opposite side of the motherboard.

The connection of connectors 9-13 and the outputs of processor 5 is carried out using the following two upper and three lower buses.

The lower bus 0 (position 19 in Fig. 3) is connected to the lower left output 15 of the processor 5, goes around the bottom of the group 7 of DDR5 memory modules, goes around the VRM module 8 and is connected to the connector 10 of the OCP NIC 3.0, as shown in Fig. 3.

The lower bus 1 (position 20 in Fig. 3) is connected to the central lower output 16 of the processor 5, passes between groups 6 and 7 of DDR5 memory modules and between modules 8 and 9 of VRM and is connected to the connector 11 of the OCP NIC 3.0, as shown in Fig. 3.

The lower bus 2 (position 21 in Fig. 3) is connected to the right lower output 17 of the processor 5, goes around the bottom of the group 6 of the DDR5 memory modules, goes around the VRM module 9 and is connected to the connector 12 of the OCP NIC 3.0, as shown in Fig. 3.

The upper bus 3 (position 22 in Fig. 3) is connected to the upper right output 14 of the processor 5, goes around the top of the group 6 of DDR5 memory modules and is connected to the connector 13 of the OCP NIC 3.0, as shown in Fig. 3.

The upper bus 4 (position 23 in Fig. 3) is connected to the upper left output 13 of the processor 5, goes around the top of the group 6 of DDR5 memory modules and is connected to the connector 9 of the OCP NIC 3.0, as shown in Fig. 3.

The device works as follows.

The device is connected to a power source in slots 3, the required number of network expansion cards are installed. During the execution of the computer program, the processor 5 interacts with other computing facilities to solve a common problem. The presence of five slots for connecting network expansion cards allows combining the computing resources of the device with a large number of computing facilities.

This solution required unique design solutions to fit five cards into the limited space of the front panel, as five cards in width occupy the entire width of the device. This allowed us to maximize the processor capabilities and connect more high-performance network cards with minimal conductor length, which reduces the risk of interference and increases the reliability of the device.

The device's standard form factor ensures compatibility with existing server racks and cabinets.

The ability to connect more network cards provides higher performance than traditional servers.

The device offers 5 expansion slots, making it easy to add new features and capabilities in the future.

The location of the expansion slots on the front panel provides convenient access for connection and maintenance.

The above advantages are provided by the compact design of the device, which has the most optimized arrangement of PCIe x16 connectors.

Claims (2)

1. A motherboard of a server device, comprising a processor having five outputs for PCIe x16 channels and located between the first and second groups of RAM modules, voltage regulator modules (VRM), five NIC OCP 3.0 network card connectors located on one side of the motherboard, wherein the central three mentioned network card connectors are connected to the first, second and third outputs of the mentioned processor, facing the same side of the motherboard, and the leftmost and rightmost of the mentioned network card connectors are connected to the fourth and fifth outputs of the mentioned processor, facing the opposite side of the motherboard. 2. The board according to item 1, characterized in that the leftmost and rightmost of the network board connectors are connected to the fourth and fifth processor outputs by tracks that go around the first and second groups of memory modules.