CN108932047B - Isolated power supply board of GPU server - Google Patents
Isolated power supply board of GPU server Download PDFInfo
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- CN108932047B CN108932047B CN201810669744.0A CN201810669744A CN108932047B CN 108932047 B CN108932047 B CN 108932047B CN 201810669744 A CN201810669744 A CN 201810669744A CN 108932047 B CN108932047 B CN 108932047B
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- 238000002955 isolation Methods 0.000 claims abstract description 60
- 238000009434 installation Methods 0.000 claims abstract description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 34
- 229910052802 copper Inorganic materials 0.000 claims description 34
- 239000010949 copper Substances 0.000 claims description 34
- 230000001629 suppression Effects 0.000 abstract description 4
- 230000003245 working effect Effects 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/30—Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations
- G06F1/305—Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations in the event of power-supply fluctuations
Abstract
The invention discloses an isolated power supply board of a GPU server, comprising: the device comprises a high-density connector, an electrical appliance installation area for installing a computer mainboard and a GPU (graphics processing unit) card; the device power supply areas are located on the left side and the right side of the electrical device installation area, and each device power supply area is provided with a power supply interface and a plurality of power utilization interfaces corresponding to the power supply interfaces. The utility model provides an isolation power supply board's the left and right sides all is equipped with the power supply interface, a plurality of power consumption interface power supply for the homonymy separately, thereby make the power consumption interface's of the left and right sides power supply keep apart, can not receive mutual voltage interference between the power consumption interface of the left and right sides promptly, thereby the power consumption interface connection's of the left and right sides GPU integrated circuit board more number on isolation power supply board, and a plurality of GPU integrated circuit board simultaneous workings, voltage fluctuation to GPU on the GPU integrated circuit board has certain suppression effect, and then GPU's error rate has been reduced, computer system's work efficiency and business completion rate have been improved.
Description
Technical Field
The invention relates to the technical field of circuit isolation, in particular to an isolated power supply board of a GPU server.
Background
With the development of the cloud computing era, more and more Graphics Processing tasks are included in services to be processed by a computer, and in order to improve the overall performance of the computer, a GPU (Graphics Processing Unit) server (a computer main controller and a GPU cooperate to process services) is gradually developed. Referring to fig. 1, fig. 1 is a top view of a power board of a GPU server in the prior art. In the prior art, a power supply interface and a plurality of power consumption interfaces are arranged on a power supply board, the power supply interface is distributed on the rear side of the central axis of the power supply board, and the power consumption interfaces are distributed on the left side and the right side of the power supply board. The power supply layer and the stratum with the same attribute are laid on the whole power supply board, and the power supply interfaces are connected with all the power utilization interfaces, so that the power supply supplies power to all the power utilization interfaces through the power supply interfaces.
However, since the same line exists in the power supply line between the power supply interface and the different electrical interfaces, when the voltage of a certain electrical interface fluctuates, the voltages of all the other electrical interfaces are interfered and fluctuate. In the electricity utilization interfaces, except for the electricity utilization interface for supplying power to the computer mainboard, other electricity utilization interfaces can supply power to the GPU card provided with the GPU. Because the GPU board card has large power consumption and fluctuates voltage, when the power consumption interfaces on the left side and the right side of one power supply board are connected with a large number of GPU board cards and a plurality of GPU board cards work simultaneously, the voltage interference among the GPU board cards is large, and the voltage fluctuation of GPUs on the GPU board cards is large. When the voltage fluctuation of the GPU exceeds the voltage fluctuation allowable range during operation, an error occurs in the GPU, which affects the operating efficiency of the computer system, and may even cause a service to fail to operate.
Therefore, how to provide a solution to the above technical problem is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide an isolated power supply board of a GPU server, when power utilization interfaces on the left side and the right side of the isolated power supply board are connected with a large number of GPU boards, and a plurality of GPU boards work simultaneously, the isolated power supply board has a certain effect of inhibiting voltage fluctuation of GPUs on the GPU boards, so that the error rate of the GPUs is reduced, and the work efficiency and the service completion rate of a computer system are improved.
In order to solve the above technical problem, the present invention provides an isolated power board for a GPU server, comprising:
the device comprises a high-density connector, an electrical appliance installation area and a control unit, wherein the electrical appliance installation area is used for installing a computer mainboard and a Graphic Processing Unit (GPU) card;
and the device power supply areas are positioned on the left side and the right side of the electrical device installation area, wherein each device power supply area is provided with a power supply interface and a plurality of electrical interfaces corresponding to the power supply interfaces.
Preferably, each side of the device power supply area specifically includes:
the power supply board power supply area is positioned at any side of the front side and the back side of the power supply area of the device and is provided with a power supply interface;
the power supply board power utilization area is provided with a plurality of power utilization interfaces, wherein the power utilization interfaces are arranged in the power utilization area of the power supply board in a single row, and the power utilization area of the power supply board is divided into a plurality of interface isolation areas for isolating the contained power utilization interfaces from the power supply of the rest power utilization interfaces.
Preferably, the plurality of interface isolation regions includes:
the interface isolation area is close to the power supply interface at the same side, and is paved with a power supply layer and a stratum with the same attribute;
and the other interface isolation areas are provided with conductive connectors, wherein the conductive connectors are respectively connected with the power utilization interfaces in the interface isolation areas and the power supply interfaces on the same side.
Preferably, the conductive connector is a copper bar pair formed by a power copper bar and a ground copper bar.
Preferably, the power copper bar is positioned at the inner side of the copper bar pair.
Preferably, the power supply layer is a copper power supply layer.
Preferably, the number of the electrical interfaces on the same side is odd;
the same-side interface isolation area specifically includes:
the computer is provided with an electric interface positioned in the middle of the electric interfaces on the same side and a middle interface isolation area used for supplying power to the computer mainboard;
the front interface isolation area is provided with an electric interface arranged at the front side of the electric interface in the middle and used for supplying power to the GPU board card;
the GPU board card is provided with an electric interface arranged in the middle and at the rear side of the electric interface, and a rear interface isolation area used for supplying power for the GPU board card.
Preferably, the power consumption interfaces on the left side and the right side are symmetrically distributed along the central axis of the isolation power supply board, the high-density connectors for installing the computer main board are distributed on the horizontal connecting line of the power consumption interfaces in the middle of the left side and the right side, and the high-density connectors for installing the GPU boards are symmetrically distributed on the front side and the rear side of the horizontal connecting line.
The invention provides an isolated power supply board of a GPU server, comprising: the device comprises a high-density connector, an electrical appliance installation area and a control unit, wherein the electrical appliance installation area is used for installing a computer mainboard and a Graphic Processing Unit (GPU) card; the device power supply areas are located on the left side and the right side of the electrical device installation area, and each device power supply area is provided with a power supply interface and a plurality of power utilization interfaces corresponding to the power supply interfaces.
Compare with the voltage mutual interference of all power consumption interfaces among the prior art, the left and right sides of the isolation power supply board of this application all is equipped with the power supply interface, a plurality of power consumption interface power supplies for the homonymy separately, thereby make the power consumption of the power consumption interface of the left and right sides keep apart, can not receive mutual voltage interference between the power consumption interface of the left and right sides promptly, thereby the power consumption interface connection of the left and right sides GPU integrated circuit board of more number on keeping apart the power supply board, and a plurality of GPU integrated circuit boards during operation simultaneously, voltage fluctuation to GPU on the GPU integrated circuit board has certain suppression effect, and then GPU's error rate has been reduced, computer system's work efficiency and business completion rate have been improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed in the prior art and the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a top view of a power board of a GPU server in the prior art;
FIG. 2 is a top view of an isolated power board of a GPU server according to the present invention;
fig. 3(1) is a right side view of the copper bar pair shown in fig. 2 according to the present invention;
fig. 3(2) is a front view of the copper bar pair shown in fig. 2 according to the present invention.
Detailed Description
The core of the invention is to provide an isolated power supply board of a GPU server, when power utilization interfaces on the left side and the right side of the isolated power supply board are connected with a plurality of GPU boards, and a plurality of GPU boards work simultaneously, the isolated power supply board has a certain effect of inhibiting voltage fluctuation of GPUs on the GPU boards, thereby reducing the error rate of the GPUs and improving the work efficiency and the service completion rate of a computer system.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 2, fig. 2 is a top view of an isolated power board of a GPU server provided in the present invention.
This keep apart power supply board includes:
the device comprises a high-density connector HD and an electrical appliance installation area 1 for installing a computer mainboard and a GPU card of a graphics processing unit;
and the device power supply areas are positioned at the left side and the right side of the electrical device installation area 1, wherein each device power supply area is provided with a power supply interface SI and a plurality of electrical interfaces EI corresponding to the power supply interface SI.
It should be noted that the number and the positions of the devices (e.g., the electrical interface EI and the high-density connector HD) in fig. 2 are not limited to the number and the positions of the devices in the present application. Fig. 2 is a top view of the isolated power supply board of the GPU server, and "left, right, front, and back" in the present application is the same as the "left, right, front, and back" direction of the isolated power supply board in fig. 2. The circles and boxes filled with oblique lines in fig. 2 represent power terminals, and the corresponding circles and boxes not filled with oblique lines represent ground terminals.
Specifically, the isolation power supply board of the application comprises an electrical appliance mounting area 1 and an appliance power supply area, wherein the electrical appliance mounting area 1 is used for mounting a computer main board and a GPU (graphics processing unit) board card, and the installation of the appliances is realized through a high-density connector HD (comprising a contact pin matched with a through hole on the computer main board and the through hole on the GPU board card) arranged on the isolation power supply board.
The device power supply region is located the left and right sides with electrical device installation region 1 for computer motherboard and GPU integrated circuit board power supply, specifically through power supply interface SI and a plurality of power consumption interface EI that all are equipped with on the device power supply region of every side (the power is through the power supply interface SI of controlling arbitrary side, for the power consumption interface EI power supply with this power supply interface SI homonymy, power consumption interface EI corresponds and supplies power for computer motherboard and GPU integrated circuit board). It can be seen that the left and right sides of the isolation power supply board of this application all is equipped with power supply interface SI, is a plurality of power consumption interface EI power supplies for the homonymy separately to make the power supply of the power consumption interface EI of the left and right sides keep apart (do not have same circuit in the power supply line between the power consumption interface EI of the left and right sides), that is to say, can not receive mutual voltage interference between the power consumption interface EI of the left and right sides, thereby stabilized the supply voltage of computer motherboard and GPU integrated circuit board.
The invention provides an isolated power supply board of a GPU server, comprising: the device comprises a high-density connector, an electrical appliance installation area and a control unit, wherein the electrical appliance installation area is used for installing a computer mainboard and a Graphic Processing Unit (GPU) card; the device power supply areas are located on the left side and the right side of the electrical device installation area, and each device power supply area is provided with a power supply interface and a plurality of power utilization interfaces corresponding to the power supply interfaces.
Compare with the voltage mutual interference of all power consumption interfaces among the prior art, the left and right sides of the isolation power supply board of this application all is equipped with the power supply interface, a plurality of power consumption interface power supplies for the homonymy separately, thereby make the power consumption of the power consumption interface of the left and right sides keep apart, can not receive mutual voltage interference between the power consumption interface of the left and right sides promptly, thereby the power consumption interface connection of the left and right sides GPU integrated circuit board of more number on keeping apart the power supply board, and a plurality of GPU integrated circuit boards during operation simultaneously, voltage fluctuation to GPU on the GPU integrated circuit board has certain suppression effect, and then GPU's error rate has been reduced, computer system's work efficiency and business completion rate have been improved.
On the basis of the above-described embodiment:
as a preferred embodiment, each side device power supply area specifically includes:
the power supply area of the power supply board is positioned at any side of the front side and the back side of the power supply area of the device and is provided with a power supply interface SI;
the power utilization area of power supply board that is equipped with a plurality of power utilization interfaces EI, wherein, a plurality of power utilization interfaces EI are single-row arranges in power utilization area of power supply board, and power utilization area of power supply board divide into a plurality of power utilization interfaces EI that are used for containing and the interface isolation region of remaining power utilization interface EI's power supply isolation.
Specifically, the device power supply area on each side of the present application includes a power supply board power supply area and a power supply board power utilization area, where the area provided with the power supply interface SI is the power supply board power supply area, and the power supply board power supply area is located on any side (generally located on the rear side) of the front and rear of the device power supply area. The area provided with the plurality of electricity utilization interfaces EI is an electricity utilization area of the power supply board, and the plurality of electricity utilization interfaces EI on the electricity utilization area of the power supply board are arranged in a single row.
In addition, this application falls into all power consumption interfaces EI multiunit, the region at every power consumption interface place of group is the interface isolation region, every power consumption interface of group keeps apart with the power supply of the power consumption interface EI of other groups (not having same circuit in the power supply line between the power consumption interface EI of every power consumption interface of group and other groups), that is to say, can not receive mutual voltage interference between the power consumption interface EI of different groups, thereby the power consumption interface EI of different groups all connects the GPU integrated circuit board on keeping apart the power supply board, and these GPU integrated circuit board simultaneous working, the voltage fluctuation to GPU on the GPU integrated circuit board has certain suppression effect, GPU's error rate has further been reduced, computer system's work efficiency and business completion rate have been improved.
As a preferred embodiment, the plurality of interface isolation regions comprises:
the power supply interface SI close to the same side, the power supply layer laid with the same attribute and the interface isolation area of the stratum are arranged;
and the other interface isolation areas are provided with conductive connectors, wherein the conductive connectors are respectively connected with the electric interface EI in the interface isolation area and the power supply interface SI at the same side.
Further, the power supply isolation method between the power utilization interfaces EI in different interface isolation regions in this application is specifically: and a power supply layer and a stratum with the same attribute are laid on an interface isolation area close to the power supply interface SI on the same side (the distance between the power supply interface SI on the same side and the power supply interface SI is closest), wherein the power supply layer completes power supply transmission between the power supply interface SI and the power utilization interface EI on the interface isolation area.
The other interface isolation regions (all the interface isolation regions on the same side except the interface isolation region closest to the interface isolation region) far away from the power supply interface SI on the same side are provided with conductive connectors, and the conductive connectors (which play a role in carrying current and connecting electrical equipment in a circuit) are respectively connected with the power utilization interface EI in the interface isolation region and the power supply interface SI on the same side so as to complete power transmission between the power utilization interface EI and the power supply interface SI on the same side. It can be seen that, for the electrical interfaces EI in different interface isolation areas, power supply isolation between the electrical interfaces EI is implemented by using power supply isolation modes of the respective areas.
As a preferred embodiment, the conductive connector is embodied as a copper bar pair CQ composed of a power copper bar and a ground copper bar.
Specifically, electrically conductive connector in this application can choose for use the copper bar that comprises power copper bar and ground copper bar to CQ, and the electric conductive property of copper bar is better, and the copper bar has the resistivity low, can bend advantages such as degree of curvature is big. Referring to fig. 3(1) and fig. 3(2), fig. 3(1) is a right side view of the copper bar pair shown in fig. 2 according to the present invention, and fig. 3(2) is a front view of the copper bar pair shown in fig. 2 according to the present invention.
As a preferred embodiment, the power copper bar is located inside the copper bar pair CQ.
Further, consider that the circuit of power copper bar is more difficult to arrange than the circuit of ground copper bar, so this application arranges the power copper bar of copper bar to CQ in inboard, ground copper bar arranges in the outside to make things convenient for the circuit to arrange.
As a preferred embodiment, the power plane is embodied as a copper power plane.
Specifically, the power plane in the present application can be selected from, but not limited to, a copper power plane, and the present application is not particularly limited thereto.
As a preferred embodiment, the number of the electrical interfaces for the same side is odd;
the same-side interface isolation area specifically includes:
the computer is provided with an electric interface EI positioned in the middle of the electric interfaces on the same side and a middle interface isolation area 21 for supplying power to a computer mainboard;
the front interface isolation area 22 is provided with an electric interface EI arranged at the front side of the electric interface EI in the middle and used for supplying power to the GPU card;
the GPU card is provided with an electric interface EI arranged at the rear side of the electric interface EI in the middle and a rear interface isolation area 23 used for supplying power for the GPU card.
Further, the power utilization area of each power supply board is provided with an odd number of power utilization interfaces EI (5, 7 or 9 may be provided). The interface isolation area on each side is divided into three areas: the computer interface comprises a middle interface isolation area 21, a front interface isolation area 22 and a rear interface isolation area 23, wherein the middle interface isolation area 21 is provided with an electric interface EI positioned in the middle of single-row electric interfaces and used for supplying power to a computer mainboard; an electric interface EI at the front side of the electric interface EI in the middle is arranged on the front interface isolation area 22 and used for supplying power to the GPU card; the rear interface isolation area 23 is provided with an electric interface EI at the rear side of the middle electric interface EI, and is also used for supplying power to the GPU board card.
In fig. 2, the power supply interface SI is located at the rear side of the power supply area of the device, a power supply layer and a ground layer with the same attribute are laid in the rear interface isolation area 23, and the copper bar pair CQ is respectively arranged on the intermediate interface isolation area 21 and the front interface isolation area 22.
As a preferred embodiment, the power consumption interfaces EI on the left and right sides are symmetrically distributed along the central axis of the isolated power supply board, the high-density connectors HD for installing the computer motherboard are distributed on the horizontal connecting line of the power consumption interfaces EI in the middle of the left and right sides, and the high-density connectors HD for installing the GPU board card are symmetrically distributed on the front and rear sides of the horizontal connecting line.
Furthermore, the power consumption interface EI of left and right sides distributes along the axis symmetry of keeping apart the power supply board in this application. Because the power consumption interface EI that is located the centre is the power supply of computer motherboard, the power consumption interface EI of power consumption interface EI front side and rear side in the centre is the power supply of GPU integrated circuit board, so a high-density connector HD for installing the computer motherboard distributes on the horizontal connecting line of the power consumption interface EI in the middle of the left and right sides, a high-density connector HD symmetric distribution for installing the GPU integrated circuit board is both sides around the horizontal connecting line, this mounting means is convenient for main control unit on the computer motherboard and GPU on the GPU integrated circuit board are mutual.
In fig. 2, one square frame in the electrical appliance installation area 1 represents one high-density connector HD, and one GPU board card is installed on one high-density connector HD on the front side and the rear side, wherein the GPU board card installed on the left side (or the right side) is powered by the electrical interface EI located on the left side (or the right side) of the isolated power supply board in a one-to-one correspondence manner.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. An isolated power board for a GPU server, comprising:
the device comprises a high-density connector, an electrical appliance installation area and a control unit, wherein the electrical appliance installation area is used for installing a computer mainboard and a Graphic Processing Unit (GPU) card;
the device power supply areas are positioned on the left side and the right side of the electrical device installation area, wherein each device power supply area is provided with a power supply interface and a plurality of electrical interfaces corresponding to the power supply interfaces; the power supply interfaces supply power for the plurality of power utilization interfaces on the same side, so that the power supply of the power utilization interfaces on the left side and the right side are isolated;
wherein, each side the device power supply area all specifically includes:
the power supply board power supply area is positioned at any side of the front side and the back side of the power supply area of the device and is provided with a power supply interface;
the power utilization area of the power supply board is provided with a plurality of power utilization interfaces, wherein the power utilization interfaces are arranged in the power utilization area of the power supply board in a single row, and the power utilization area of the power supply board is divided into a plurality of interface isolation areas for isolating the included power utilization interfaces from the power supply of the rest power utilization interfaces;
the plurality of interface isolation regions comprises:
the interface isolation area is close to the power supply interface at the same side, and is paved with a power supply layer and a stratum with the same attribute;
and the other interface isolation areas are provided with conductive connectors, wherein the conductive connectors are respectively connected with the power utilization interfaces in the interface isolation areas and the power supply interfaces on the same side.
2. The isolated power board for the GPU server of claim 1, wherein the conductive connector is a copper bar pair consisting of a power copper bar and a ground copper bar.
3. The isolated power strip for a GPU server of claim 2, wherein the power copper bar is located inside the pair of copper bars.
4. An isolated power strip for a GPU server as defined in claim 2, wherein the power strip is specifically a copper power strip.
5. The isolated power board of the GPU server of any of claims 1-4, wherein the number of electrical interfaces on the same side is odd;
the same-side interface isolation area specifically includes:
the computer is provided with an electric interface positioned in the middle of the electric interfaces on the same side and a middle interface isolation area used for supplying power to the computer mainboard;
the front interface isolation area is provided with an electric interface arranged at the front side of the electric interface in the middle and used for supplying power to the GPU board card;
the GPU board card is provided with an electric interface arranged in the middle and at the rear side of the electric interface, and a rear interface isolation area used for supplying power for the GPU board card.
6. The isolated power supply board of the GPU server of claim 5, wherein the power consumption interfaces on the left and right sides are symmetrically distributed along the central axis of the isolated power supply board, the high-density connectors for installing the computer motherboard are distributed on the horizontal connection line of the power consumption interface in the middle of the left and right sides, and the high-density connectors for installing the GPU board card are symmetrically distributed on the front and rear sides of the horizontal connection line.
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| US7500122B2 (en) * | 2006-01-20 | 2009-03-03 | Micro-Star Int'l Co., Ltd. | Efficiency optimization method for hardware devices with adjustable clock frequencies |
| CN203012626U (en) * | 2012-12-25 | 2013-06-19 | 中国航空工业集团公司第六三一研究所 | Safe and reliable power supply system |
| CN105094242A (en) * | 2015-07-21 | 2015-11-25 | 浪潮电子信息产业股份有限公司 | GPU node supporting eight GPU cards and server system |
| CN205319646U (en) * | 2015-12-04 | 2016-06-15 | 宝钢集团新疆八一钢铁有限公司 | Female row of power supply is kept apart to modified air |
| CN107390849A (en) * | 2017-06-29 | 2017-11-24 | 郑州云海信息技术有限公司 | A kind of system for realizing Rack GPU power supplies |
| CN107643794A (en) * | 2017-08-24 | 2018-01-30 | 郑州云海信息技术有限公司 | A kind of whole machine cabinet power supplying system of server |
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|---|---|
| CN108932047A (en) | 2018-12-04 |
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