A high-performance desktop computer motherboard

Abstract

This utility model discloses a high-performance desktop computer motherboard, based on the Shenwei 831 processor and the Phytium X100 chipset. Combining the application requirements of desktop computer motherboards, the peripheral circuits of the Shenwei 831 processor and the Phytium X100 chipset are designed, including high-speed communication interface design, power supply design, and storage circuit design. The Shenwei 831 processor focuses on providing powerful single-core and multi-core computing capabilities to meet the demands of high-load tasks. The Shenwei 831 processor integrates key core modules such as a memory controller, PCIe controller, and security and encryption modules. The Phytium X100 chipset is a chipset used in conjunction with the Shenwei 831 processor, responsible for expanding connectivity, managing peripherals, and providing additional functions, such as expanding USB keyboards and mice, storage hard drive peripherals, PCIe graphics card peripherals, and network device peripherals.

Description

Technical Field

[0001] This utility model relates to the field of computer technology, and in particular to a high-performance desktop computer motherboard. Background Technology

[0002] In recent years, CPUs, operating systems, middleware, databases, and application software have seen varying degrees of application and development in the field of information technology application innovation (referred to as "IT innovation"). The CPU is the core of a computer's computation and control, and can be categorized by application into desktop, server, mobile, and embedded CPUs. Desktop CPUs are primarily used in personal computers (desktops and laptops). Currently, the CPU industry is dominated by two major ecosystems: one is the Wintel ecosystem based on the x86 instruction set and Windows operating system; the other is the AA ecosystem based on the ARM instruction set and Android operating system. The PC and server markets mainly use the Wintel ecosystem, while ARM primarily focuses on the mobile market.

[0003] Companies like Shenwei obtained licenses for corresponding instruction set architectures and developed into six major domestic CPU manufacturers: Shenwei, Loongson, Phytium, Kunpeng, Zhaoxin, and Hygon. Among them, Shenwei and Loongson have pursued independent research and development based on the licensed instruction set architectures, creating instruction set architectures with independent intellectual property rights. Complete systems based on domestically produced CPU chips have been widely used in the domestic IT innovation field in recent years. Utility Model Content

[0004] The purpose of this invention is to provide a high-performance desktop computer motherboard to solve the problems in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides a high-performance desktop computer motherboard.

[0006] The chips include: Shenwei 831 processor, X100 chipset, DDR4 memory chips, LPDDR4 memory chips, CPLD chip, NOR Flash chip, network card chip, and RS232 interface chip; the external interfaces include: 3 PCIe interfaces, 6 USB interfaces, 4 SATA interfaces, 2 HDMI interfaces, 2 Gigabit Ethernet interfaces, and 2 RS232 interfaces.

[0007] The Shenwei 831 processor includes two DDR4 memory controllers and a PCIe X16 interface;

[0008] The X100 chipset directly expands to 6 USB ports, which can be connected to a USB connector;

[0009] The X100 kit directly expands to 4 SATA interfaces, one of which connects to an M.2 connector and the other three connect to SATA3.0 connectors, for connecting hard drives of different forms.

[0010] The X100 chipset directly expands to 3 PCIe interfaces. One of the PCIe interfaces is connected to the network card chip to expand to two Gigabit Ethernet ports. The other two PCIe interfaces are connected to the PCIe slots.

[0011] The X100 chipset expands to include two DP interfaces, which are converted into HDMI interfaces by the LT8712X interface chip for connecting to external displays.

[0012] In one embodiment, the two DDR4 memory controllers are connected to a total of 10 DDR4 memory chips, two of which are used for ECC verification. The capacity of each DDR4 memory chip is 1GB, and the total memory capacity of the computer motherboard reaches 8GB.

[0013] In one implementation, the PCIe X16 interface of the Shenwei 831 processor is split into two PCIe X8 interfaces, one of which is connected to the PCIe slot and the other is connected to the upstream PCIe 3.0 X8 interface of the X100 chipset.

[0014] In one embodiment, the X100 chipset is externally connected to two LPDDR4 memory chips as the video memory of its internal GPU circuit. The LPDDR4 memory chips are model CXDB4ABAM-MK, with a single memory chip capacity of 2GB and a data bus width of 32 bits.

[0015] In one embodiment, the computer motherboard includes two serial ports: one is a serial port derived from the Shenwei 831 processor, which is converted to an RS232 level serial port by the AiP3232TA16 chip; the other is a serial port derived from the X100 chipset, which is converted to an RS232 level serial port by the AiP3232TA16 chip.

[0016] In one embodiment, the computer motherboard controls the power-on and chip reset timing via a CPLD chip.

[0017] In one embodiment, the Shenwei 831 processor and the X100 chipset are each connected to an external NOR Flash chip. The NOR Flash chip connected to the Shenwei 831 processor is used to store the CPU's BIOS firmware, and the NOR Flash chip connected to the X100 chipset is used to store the chipset's configuration firmware.

[0018] In one embodiment, the PCIe slot is model number 2EG01827-DPDB-DF; the DDR4 memory chip is model number LC4S8G16V-F9JSI; and the USB connector is model number EAST-U3AB-1L702R.

[0019] In one embodiment, the M.2 connector is model C1082F85DBXPA, and the SATA3.0 connector is model EAST-SA790DPSPCR.

[0020] In one embodiment, the network interface card chip is model WX1860AL2; the CPLD chip is model EF2L45BG256B; and the NOR Flash chip is model GD25LQ64ESIG.

[0021] This utility model provides a high-performance desktop computer motherboard based on the Shenwei 831 processor and the Phytium X100 chipset, along with a corresponding design for its peripheral interface circuits. The Shenwei 831 processor is based on a self-developed instruction set, ensuring high reliability. The X100 chipset can directly expand with USB 3.0 / 2.0 interfaces, PCIe 3.0 / 2.0 interfaces, SATA interfaces, DP interfaces, serial ports, etc., eliminating the need for complex external interface chips. The high integration of the chipset results in a small overall size and a high rate of domestic production. Attached Figure Description

[0022] Figure 1 This is the overall design block diagram of a computer motherboard.

[0023] Figure 2 This is a block diagram of the power supply section in a computer motherboard.

[0024] Figure 3 This is a design block diagram of the power-on and reset timing sequences in a computer motherboard. Detailed Implementation

[0025] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a more detailed account of a high-performance desktop computer motherboard according to this utility model. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0026] This utility model provides a high-performance desktop computer motherboard, such as... Figure 1The diagram shown is the overall design block diagram. The main chips include: Shenwei 831 processor, Phytium X100 chipset, DDR4 memory chips, LPDDR4 memory chips, CPLD chip, NOR Flash chip, network card chip, and RS232 interface chip. The motherboard's external interfaces mainly include: 3 PCIe slots, 6 USB ports, 4 SATA ports, 2 HDMI ports, 2 Gigabit Ethernet ports, and 2 RS232 ports.

[0027] The design structure of each key circuit in the high-performance desktop computer motherboard of this utility model is as follows:

[0028] (1) Shenwei 831 processor memory circuit:

[0029] like Figure 1 As shown, the Shenwei 831 processor includes two DDR4 memory controllers, CH1 and CH2. Each memory controller connects to five DDR4 memory chips with a 16-bit data width, one of which is used for ECC verification. The DDR4 memory chips are LC4S8G16V-F9JSI, with a capacity of 1GB per chip. The computer motherboard of this invention has a total of 10 DDR4 memory chips, therefore the total memory capacity of the computer motherboard is 8GB.

[0030] (2) PCIe interface circuit of Shenwei 831 processor:

[0031] like Figure 1 As shown, the PCIe X16 interface of the Shenwei 831 processor is split into two PCIe X8 interfaces: one connected to the PCIe slot and the other connected to the upstream PCIe 3.0 X8 interface of the X100 chipset; the X100 chipset has three downstream PCIe interfaces: two of which are connected to the PCIe slot and one is connected to the Ethernet card chip WX1860AL2, expanding to two Gigabit Ethernet ports.

[0032] (3) USB interface circuit:

[0033] like Figure 1 As shown, six USB ports are directly derived from the X100 chipset, and each port is compatible with both USB 3.0 and USB 2.0 protocols.

[0034] (4) SATA interface circuit:

[0035] like Figure 1 As shown, the four SATA interface circuits are directly drawn from the X100 chipset, with one connected to the M.2 connector and the other three connected to the SATA3.0 connector.

[0036] (5) Gigabit Ethernet interface circuit:

[0037] like Figure 1 As shown, the X100 chipset leads out one downstream PCIe 2.0 X2 interface, which is connected to the Ethernet card chip WX1860AL2 to expand to two Gigabit Ethernet ports.

[0038] (6) Serial port circuit:

[0039] like Figure 1 As shown, the computer motherboard contains two serial ports: one is a serial port brought out by the Shenwei 831 processor, which is converted to RS232 level serial port by the AiP3232TA16 chip; the other is a serial port brought out by the X100, which is converted to RS232 level serial port by the AiP3232TA16 chip.

[0040] (7) JTAG interface circuit:

[0041] like Figure 1 As shown, the computer motherboard includes two JTAG interface circuits, which are directly connected to the Shenwei 831 processor and the CPLD chip, respectively, for connecting external debugging tools to program and debug the chip online.

[0042] (8) NOR Flash circuit:

[0043] like Figure 1 As shown, the Shenwei 831 processor and the X100 chipset each have an external NOR Flash chip. The NOR Flash chip connected to the Shenwei 831 processor is used to store the CPU's BIOS firmware, and the NOR Flash chip connected to the X100 chipset is used to store the chipset's configuration firmware.

[0044] (9) Video memory circuit:

[0045] like Figure 1 As shown, the X100 chipset uses two external LPDDR4 memory chips as the video memory for its internal GPU circuitry. The LPDDR4 memory chips are model CXDB4ABAM-MK, with a single chip capacity of 2GB and a data bus width of 32 bits. Using two LPDDR4 memory chips, the X100's total video memory capacity reaches 4GB, and the data bus width reaches 64 bits.

[0046] (10) Power supply:

[0047] like Figure 2As shown, the high-performance desktop computer motherboard of this invention uses a standard ATX power supply. The ATX power outputs are VSB_5V0, ATX_12V, and VDD_3V3. The VSB_5V0 power supply is powered on by default upon power-up, while the ATX_12V and VDD_3V3 power supplies require a power-on signal from the CPLD chip to be activated. The voltages required for operation of each chip in the computer motherboard are summarized as follows: STBY_3V3, FT_STBY_0V8, FT_STBY_1V8, FT_STBY_2V5, VDD_1V1_WX1860, FT_VDD_1V1, FT_VPP_1V8, GPU_AVDDH_1V2, FT_VDD_0V88, FT_VDD_0V8, CPU_VDD_1V2, CPU_VDD_1V8, CPU_VPP_2V5, CPU_VDD_0V88. Each power source is converted through a power management chip. The power management chip models used in this invention are: ISM6636B-3300, ISM6636C-0600, SGM2037, and IS6608A.

[0048] (11) Power-on timing and reset timing:

[0049] This high-performance desktop computer motherboard is powered by an ATX power supply. In standby mode, only VSB_5V0 operates normally. The ISM6636B-3300 power management chip generates STBY_3V3 power for the CPLD chip, which also operates normally in standby mode. When the power button is pressed, the POWER_ON_BUTTON signal goes low. Upon detecting this low signal, the CPLD chip pulls the PS_ON signal high. The ATX power supply internally detects the high PS_ON signal and enables the ATX_12V and VDD_3V3 power supplies. Once the ATX power supply powers on normally, it outputs ATX_PG to the CPLD chip. The CPLD chip detects ATX_PG as high and then... Figure 3 Enable the power supplies on the motherboard in the order shown. After all power supplies are powered on, they need to be enabled according to the instructions. Figure 3 The X100 chipset and Shenwei 831 processor are reset in the sequence shown.

[0050] Based on these structures of this utility model, the operating characteristics and functions of the computer motherboard are as follows:

[0051] (a) PCIe interface: The PCIe interface has flexible expandability. The PCIe X8 interface directly brought out by the Shenwei 831 processor is compatible with PCIe 4.0, PCIe 3.0 and PCIe 2.0 protocols; the two PCIe interfaces extended through the X100 chipset are compatible with PCIe 3.0 and PCIe 2.0 protocols.

[0052] (b) USB interface: A total of 6 USB interfaces are extended through the X100 kit, which can be directly connected to the connector. Each USB interface supports both USB 3.0 and USB 2.0 protocols.

[0053] (c) SATA interface: A total of 4 SATA interfaces are expanded through the X100 kit, one of which is connected to the M.2 connector and the other three are connected to the SATA3.0 connector.

[0054] (d) Ethernet interface: The PCIe interface extended by the X100 chipset is connected to the Ethernet card chip WX1860AL2 to expand two Gigabit Ethernet ports.

[0055] (e) DDR4 memory interface of Shenwei 831 processor: Onboard memory of Shenwei processor, with a total capacity of 8GB and ECC verification.

[0056] (f) LPDDR4 memory interface of X100 chipset: The video memory of X100 chipset part, with a total capacity of 4GB.

[0057] (g) Serial ports: Includes 2 serial ports, one of which is an RS232 level serial port brought out by the Shenwei 831 processor, and the other is an RS232 level serial port brought out by the X100 chipset.

[0058] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A high-performance desktop computer motherboard, characterized in that, The chips include: Shenwei 831 processor, X100 chipset, DDR4 memory chips, LPDDR4 memory chips, CPLD chip, NOR Flash chip, network card chip, and RS232 interface chip; the external interfaces include: 3 PCIe interfaces, 6 USB interfaces, 4 SATA interfaces, 2 HDMI interfaces, 2 Gigabit Ethernet interfaces, and 2 RS232 interfaces. The Shenwei 831 processor includes two DDR4 memory controllers and a PCIe X16 interface; The X100 chipset directly expands to 6 USB ports, which can be connected to a USB connector; The X100 kit directly expands to 4 SATA interfaces, one of which connects to an M.2 connector and the other three connect to SATA3.0 connectors, for connecting hard drives of different forms. The X100 chipset directly expands to 3 PCIe interfaces. One PCIe interface is connected to the network card chip to expand to two Gigabit Ethernet ports, and the other two PCIe interfaces are connected to the PCIe slots. The X100 chipset expands to include two DP interfaces, which are converted into HDMI interfaces by the LT8712X interface chip for connecting to external displays.

2. The high-performance desktop computer motherboard as described in claim 1, characterized in that, The two DDR4 memory controllers connect to a total of 10 DDR4 memory chips, two of which are used for ECC verification. Each DDR4 memory chip has a capacity of 1GB, and the total memory capacity of the computer motherboard reaches 8GB.

3. The high-performance desktop computer motherboard as described in claim 1, characterized in that, The PCIe X16 interface of the Shenwei 831 processor is split into two PCIe X8 interfaces, one of which is connected to the PCIe slot and the other is connected to the upstream PCIe 3.0 X8 interface of the X100 chipset.

4. The high-performance desktop computer motherboard as described in claim 1, characterized in that, The X100 chipset has two external LPDDR4 memory chips as the video memory for its internal GPU circuit. The LPDDR4 memory chips are model CXDB4ABAM-MK, with a single memory chip capacity of 2GB and a data bus width of 32 bits.

5. The high-performance desktop computer motherboard as described in claim 1, characterized in that, The computer motherboard includes two serial ports: one is a serial port from the Shenwei 831 processor, which is converted to RS232 level serial port by the AiP3232TA16 chip; the other is a serial port from the X100 chipset, which is converted to RS232 level serial port by the AiP3232TA16 chip.

6. The high-performance desktop computer motherboard as described in claim 1, characterized in that, The computer motherboard controls the power-on and chip reset timing via a CPLD chip.

7. The high-performance desktop computer motherboard as described in claim 1, characterized in that, The Shenwei 831 processor and the X100 chipset are each connected to an external NOR Flash chip. The NOR Flash chip connected to the Shenwei 831 processor is used to store the CPU's BIOS firmware, and the NOR Flash chip connected to the X100 chipset is used to store the chipset's configuration firmware.

8. The high-performance desktop computer motherboard as described in claim 1, characterized in that, The PCIe slot is model number 2EG01827-DPDB-DF; the DDR4 memory chip is model number LC4S8G16V-F9JSI; and the USB connector is model number EAST-U3AB-1L702R.

9. The high-performance desktop computer motherboard as described in claim 1, characterized in that, The M.2 connector is model C1082F85DBXPA, and the SATA3.0 connector is model EAST-SA790DPSPCR.

10. The high-performance desktop computer motherboard as described in claim 1, characterized in that, The network interface card chip is model WX1860AL2; the CPLD chip is model EF2L45BG256B; and the NOR Flash chip is model GD25LQ64ESIG.

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