CN212364991U - PCB compatible with SATA and NVME - Google Patents

Abstract

The utility model provides a PCB board of compatible SATA and NVME, include: a server motherboard and a server backplane; a first Slimline interface and an SATA connector are arranged on the server mainboard; the server back plate comprises a second Slim line interface, two chip resistors, an SATA hard disk module and an NVME hard disk module, the second Slim line interface is connected with the first Slim line interface, the second Slim line interface is respectively connected with the SATA hard disk module and the NVME hard disk module through Slim line cables, the chip resistors are connected to the Slim line cables, and the chip resistors share one bonding pad; the utility model discloses set up a Slimline interface of NVME hard disk and SATA/SAS hard disk sharing on the server backplate, solved the interface more lead to the backplate overall arrangement complicated, occupation space big scheduling problem.

Description

PCB compatible with SATA and NVME

Technical Field

The utility model belongs to the technical field of the server backplate, concretely relates to PCB board of compatible SATA and NVME.

Background

After the 21 st century, due to the rapid development of internet technology, the demands for servers are increasing, the demands for high-density servers and high-integration servers are also increasing, the integration level of board cards in the servers is also increasing, and the control of research and development design cost becomes a main pursuit target of each server manufacturer in the competition strategy of each server manufacturer.

For the increase of the demand of storage type servers, the hard disk backplane is designed to be the work that each server manufacturer must perform, and currently, there are two types of server backplanes: a PCIE type NVME hard disk back plate and an SAS/SATA type SATA back plate; there are currently three main types of backplanes if the number of hard disks is not considered: NVME backplate, SAS backplate and mixed type backplate, mixed type backplate is: the back plate is designed in a compatible mode of an NVME hard disk and an SAS hard disk, and the existing design of the three back plates is as follows:

1. as shown in fig. 1, the pure NVME backplane only supports a PCIE bus type NVME backplane, and a slim mainstream PCIE interface is used as an input signal interface of the NVME hard disk, but is not limited to the slim interface;

2. as shown in fig. 2, the pure SAS backplane only supports SAS/SATA bus type SAS backplanes, and uses a 7Pin mainstream SAS interface as an input signal interface of the SAS hard disk, but is not limited to a 7Pin standard interface;

3. as shown in fig. 3, the NVME/SAS hybrid backplane supports a hybrid backplane of NVME and SAS/SATA bus types, and a PCIE interface and an SAS interface exist at the same time as input signal interfaces of the NVME hard disk and the SAS hard disk, respectively.

Aiming at the server backboard with the existing design, as the number of interfaces is large, the layout of the backboard is complex, and the backboard occupies a large space, and meanwhile, a PCIE interface and an SAS interface exist, and no interface is shared, so that certain resources are wasted.

SUMMERY OF THE UTILITY MODEL

The above-mentioned not enough to prior art, the utility model provides a PCB board of compatible SATA and NVME to solve above-mentioned technical problem.

The utility model provides a PCB board of compatible SATA and NVME, include: a server motherboard and a server backplane; a first Slimline interface and an SATA connector are arranged on the server mainboard; the server back plate comprises a second Slim line interface, two chip resistors, an SATA hard disk module and an NVME hard disk module, the second Slim line interface is connected with the first Slim line interface, the second Slim line interface is respectively connected with the SATA hard disk module and the NVME hard disk module through Slim line cables, the chip resistors are connected to the Slim line cables, and the chip resistors share one bonding pad.

Further, a CPU and an adapter are further arranged on the server mainboard, the CPU is connected with the first Slimline interface, and the adapter is connected with the SATA connector.

Further, the first Slimline interface and the second Slimline interface are connected through a PCIE signal line, and the SATA connector and the second Slimline interface are connected through a SATA signal line.

Furthermore, the signal impedances of the PCIE signal line and the SATA signal line are both 85 ohm.

Further, the adapter is an integrated south bridge.

Further, the adapter is an HBA card.

The utility model provides a PCB board of compatible SATA and NVME, the server mainboard is unchangeable, and the backplate has solved the problem that the backplate layout is complicated, occupation space is big etc. because of more interfaces through setting up NVME hard disk and SATA/SAS hard disk sharing a slim line interface, also can save server backplate cost simultaneously; the hard disk is selected by two chip resistors, NVME and SATA are selected by using SMT, and the two chip resistors share one bonding pad, so that the signal quality can be effectively improved.

Furthermore, the utility model relates to a principle is reliable, and simple structure has very extensive application prospect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of a prior art circuit board of the present application;

FIG. 2 is a schematic diagram of a prior art circuit board of the present application;

FIG. 3 is a schematic diagram of a prior art circuit board of the present application;

fig. 4 is a schematic structural diagram of a circuit board according to an embodiment of the present application.

Detailed Description

In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example 1

As shown in fig. 4, the present embodiment provides a SATA and NVME compatible PCB, including: a server motherboard and a server backplane; the server mainboard is provided with a CPU, a PCH, a first Slim line interface and an SATS connector, the CPU is connected with the first Slim line interface, and the PCH is connected with the SATA connector; the server back plate comprises a second Slimline interface, an SATA hard disk module and an NVME hard disk module, the first Slimline interface is connected with the second Slimline interface through a PCIE signal line, and the SATA connector is connected with the second Slimline interface through an SATA signal line.

In the embodiment, in the prior art, a server motherboard is unchanged, a backplane shares a slim line interface by setting an NVME hard disk and an SATA/SAS hard disk, a CPU sends a PCIE signal to a first slim line interface, a PCH sends an SATA signal to an SATA connector, the PCH can also be other network switching devices such as an HBA card, and the first slim line interface and the SATA connector transmit the signal to a second slim line interface of the backplane, so that the problems of complex layout, large occupied space and the like of the backplane due to more interfaces are solved, and the cost of the server backplane can be saved; the signal impedance of the PCIE signal line and the SATA signal line is 85 ohms, which is beneficial to improving the quality of transmission signals.

In addition, the second Slimline interface is connected with the SATA hard disk module and the NVME hard disk module through Slimline cables respectively, chip resistors are arranged on the back plate respectively, the chip resistors are connected to the Slimline cables, and the chip resistors share one bonding pad. In this embodiment, the SATA hard disk module and the NVME hard disk module are selected through two chip resistors, and one of the SATA hard disk module and the NVME hard disk module is selected by using SMT. In addition, two chip resistors share one bonding pad during PCB design, and signal quality can be effectively improved.

Although the present invention has been described in detail by referring to the drawings in conjunction with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and substance of the present invention, and these modifications or substitutions are intended to be within the scope of the present invention/any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (6)

1. A SATA and NVME compatible PCB board, comprising: a server motherboard and a server backplane; a first Slimline interface and an SATA connector are arranged on the server mainboard; the server back plate comprises a second Slim line interface, two chip resistors, an SATA hard disk module and an NVME hard disk module, the second Slim line interface is connected with the first Slim line interface, the second Slim line interface is respectively connected with the SATA hard disk module and the NVME hard disk module through Slim line cables, the chip resistors are connected to the Slim line cables, and the chip resistors share one bonding pad.

2. A SATA and NVME compatible PCB as recited in claim 1, wherein said server motherboard further comprises a CPU and an adaptor, said CPU is connected to said first Slim line interface, and said adaptor is connected to said SATA connector.

3. A SATA and NVME compatible PCB as recited in claim 1, wherein the first Slimline interface and the second Slimline interface are connected by a PCIE signal line, and the SATA connector and the second Slimline interface are connected by a SATA signal line.

4. The SATA and NVME compatible PCB of claim 3, wherein the signal impedance of the PCIE signal lines and the SATA signal lines are both 85 ohms.

5. The SATA and NVME compatible PCB board of claim 2, wherein the adapter is an integrated south bridge.

6. The SATA and NVME compatible PCB board of claim 2, wherein the adapter is an HBA card.

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