CN210129000U

CN210129000U - PCIe test board capable of replacing HGX-2

Info

Publication number: CN210129000U
Application number: CN201920252027.8U
Authority: CN
Inventors: 王培培; 孔祥涛
Original assignee: Suzhou Wave Intelligent Technology Co Ltd
Current assignee: Suzhou Wave Intelligent Technology Co Ltd
Priority date: 2019-02-27
Filing date: 2019-02-27
Publication date: 2020-03-06
Anticipated expiration: 2029-02-27

Abstract

The utility model provides a fungible HGX-2's PCIe surveys test panel, include: an ExaMAX high-density connector and an AirMAX power connector; 8 sets of X16PCIe signal pins, 1 set of X4PCIe signal pins, and P54V power signal pins; 8 group X16PCIe signals, wherein 4 group signals are the downstream port of PCIe switch 1, the other 4 groups are the downstream port of PCIe switch 3, the downstream ports of the two PCIe switches are connected with each other, namely 4 groups of PCIe X16 and the other 4 groups of PCIe X16 are butted, and the downstream port of the PCIe switch forms a loopback link. The utility model discloses can realize 8 groups of X16PCIe and 1 group of X4 PCIe's verification to replace HGX-2 integrated circuit board, when the switch switchboard carries out functional test in the mill, verify the connectivity of the lower port of PCIe switch, guarantee independently that research and development integrated circuit board mill production function is normal, and small, easy plug and reduction in production cost.

Description

PCIe test board capable of replacing HGX-2

Technical Field

The utility model relates to an integrated circuit board test field, especially a fungible HGX-2's PCIe survey test panel.

Background

The HGX-2 product of the Nvidia is a unified platform for realizing artificial intelligence and High Performance Computing (HPC), and at present, in order to keep a leading position in the field of Artificial Intelligence (AI), a plurality of server products can carry the HGX-2 GPUBaseboard in hardware design and design butted board cards.

The HGX-2 GPU Basebaard external interface is an Amphenol ExaMAX high-density connector and an AirMAX power connector. The high-speed signals comprise 8 groups of PCIe signals of X16 and 1 group of X4PCIe signals, and the power supply connector is used for supplying P54V power signals and other low-speed miscellaneous signals. The autonomously developed board card must also contain these signals to interface with HGX-2.

Because the number of PCIe X16 signals of the current purley CPU is not so many, a Switch board is usually used to extend PCIe when the board is designed, and a downstream port of the Switch board is connected with an HGX-2 board. When the Switch board is used for testing functions of a factory, all external interfaces are required to be fully connected, and functions of all chips and ports are tested. The prior art scheme is as follows: when the switch exchange board can test the work applying performance of a factory, the ExaMAX interface is directly butted with the HGX-2 board card, and the function test of all PCIe ports is completed. However, the above-mentioned solutions have many disadvantages, such as the HGX-2 board card is expensive, bulky and heavy, and is easily damaged during factory testing and is not easily plugged.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a fungible HGX-2's PCIe surveys test panel aims at solving among the prior art HGX-2 integrated circuit board high price, bulky scheduling problem, realizes utilizing surveying the test panel to replace HGX-2 integrated circuit board, reduction in production cost reduces bulk weight.

In order to achieve the technical purpose, the utility model provides a PCIe test panel of fungible HGX-2, PCIe test panel includes:

an ExaMAX high-density connector and an AirMAX power connector;

8 sets of X16PCIe signal pins, 1 set of X4PCIe signal pins, and P54V power signal pins;

8 group X16PCIe signals, wherein 4 group signals are the downstream port of PCIe switch 1, and other 4 groups are the downstream port of PCIe switch 3, and the downstream ports of two PCIe switches are interconnected, namely 4 groups of PCIe X16 and other 4 groups of PCIe X16 are butted, and the downstream port of PCIe switch forms a loopback link.

Preferably, the 1 set of X4PCIe signals is connected to the slim line interface of X4.

Preferably, the SLIMLINE interface is connected to PCIe slots on other boards through SLIMLINE cables, and the connectivity of the group of PCIe X4 of the switch board is verified through an external HBA card.

Preferably, a P54V power signal on the AirMAX connector is connected to an LED light for indicating the status of the power on the board.

Preferably, the PCIe test board is a passive board card.

Preferably, the downstream port status of the PCIe switch is viewable through the lspci instruction.

The effects provided in the contents of the present invention are only the effects of the embodiments, not all the effects of the present invention, and one of the above technical solutions has the following advantages or advantageous effects:

compared with the prior art, the utility model provides a PCIe test board has the same ExaMAX high density connector and AirMAX power connector with HGX-2, and the input signal has 8 groups X16PCIe signals, 1 group X4PCIe signal and P54V power signal; 8 group X16PCIe signals, wherein 4 group signals are the downstream port of PCIe switch 1, and other 4 groups are the downstream port of PCIe switch 3, and the downstream ports of two PCIe switches are interconnected, namely 4 groups of PCIe X16 and other 4 groups of PCIe X16 are butted, and the downstream port of PCIe switch forms a loopback link. The utility model discloses can realize 8 groups of X16PCIe and 1 group of X4 PCIe's verification to replace HGX-2 integrated circuit board, when the switch switchboard carries out functional test in the mill, verify the connectivity of the lower port of PCIe switch, guarantee independently that research and development integrated circuit board mill production function is normal, and small, easy plug and reduction in production cost.

Drawings

Fig. 1 is a schematic structural diagram of a PCIe test board that can replace HGX-2 according to an embodiment of the present invention.

Detailed Description

In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings. The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted so as to not unnecessarily limit the invention.

The PCIe test board provided by the present invention can replace HGX-2 and is described in detail below with reference to the accompanying drawings.

As shown in FIG. 1, the utility model discloses a PCIe test panel of fungible HGX-2, survey the test panel and include:

an ExaMAX high-density connector and an AirMAX power connector;

8 group X16PCIe signals, wherein 4 group signals are the downstream port of PCIe switch 1, and other 4 groups are the downstream port of PCIe switch 3, and the downstream port of two PCIe switches is interconnect, and 4 groups PCIe X16 and other 4 groups PCIe X16 dock promptly, let the downstream port of PCIe switch form the loopback link.

The utility model discloses a based on PCIe Switch integrated circuit board, replace a PCIe test panel of HGX-2 integrated circuit board and Switch exchange board butt joint, have the same ExaMAX high density connector and AirMAX power connector with HGX-2, input signal has 8X 16PCIe signals of group, 1X 4PCIe signal and P54V power signal of group.

8 group X16PCIe signals, wherein 4 group signals are the downstream port of PCIe switch 1, and the other 4 groups are the downstream port of PCIe switch 3, 8 GPUs are docked on HGX-2 board card, the downstream ports of two PCIe switches are connected with each other on the PCIe test board capable of replacing HGX-2, namely 4 groups of PCIe X16 and the other 4 groups of PCIe X16 are docked, and the downstream port of PCIeswitch forms a loopback link, so that the downstream port of PCIe switch can be observed to be the PCIe X16Gen3 state through the instruction of PClspci when the switch board is in function test.

The 1 group of X4PCIe signals are connected with an upstream chip of the NVswitch on the HGX-2 board card, and in an alternative test board, the 1 group of X4PCIe signals are connected with a SLIMLINE interface of the X4, the SLIMLINE interface can be connected with PCIe slots on other board cards through SLIMLINE cables, and the connectivity of the group of PCIe X4 of the switch exchange board is verified through an external HBA card.

The P54V power signal on the AirMAX connector is connected with an LED lamp for indicating the state of the power on the board.

The PCIe test board is a passive board card, and a power supply scheme does not need to be additionally arranged.

The utility model provides a PCIe test board has the same ExaMAX high density connector and AirMAX power connector with HGX-2, and input signal has 8 groups X16PCIe signals, 1 group X4PCIe signal and P54V power signal; 8 group X16PCIe signals, wherein 4 group signals are the downstream port of PCIe switch 1, and other 4 groups are the downstream port of PCIe switch 3, and the downstream ports of two PCIe switches are interconnected, namely 4 groups of PCIe X16 and other 4 groups of PCIe X16 are butted, and the downstream port of PCIe switch forms a loopback link. The utility model discloses can realize 8 group X16PCIe and 1 group X4 PCIe's verification to replace HGX-2 integrated circuit board, when switch switchboard carried out the functional test in the mill, verify the connectivity of PCIeswitch's lower port, guarantee independently that research and development integrated circuit board mill production function is normal, and small, easy plug and reduction in production cost.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A PCIe test board that can replace HGX-2, the PCIe test board comprising:

an ExaMAX high-density connector and an AirMAX power connector;

8 group X16PCIe signals, wherein 4 group signals are the downstream port of PCIe switch 1, and the other 4 groups are the downstream port of PCIeswitch 3, and the downstream ports of two PCIe switches are interconnected, i.e. 4 groups of PCIe X16 and the other 4 groups of PCIe X16 are butted, and the downstream port of PCIe switch forms a loopback link.

2. The PCIe test board capable of replacing HGX-2 according to claim 1, wherein the 1 group of X4PCIe signals are connected to SLIMLINE interface of X4.

3. The PCIe test board capable of replacing HGX-2 as claimed in claim 2, wherein the SLIMLINE interface is connected to PCIe slots on other boards through SLIMLINE cables, and the connectivity of the group of PCIe X4 of the switch board is verified through an external HBA card.

4. The PCIe test board as claimed in claim 1, wherein the P54V power signal on the AirMAX connector is connected to an LED lamp for indicating the status of the power supply on the board.

5. The PCIe test board capable of replacing HGX-2 according to claim 1, wherein the PCIe test board is a passive board.