User Guide
Page 6
... Accessories Application DVD Documentation ASUS PRIME X370-A motherboard 2 x Serial ATA 6.0 Gb/s cables 1 x I/O shield 1 x M.2 screw package 1 x Support DVD 1 x User Manual If any of the above items is subject to the physical characteristics of 1920 x 1200 @60Hz - PRIME X370-A specifications summary CPU Chipset Memory Graphics Multi-GPU support Expansion slots AM4 socket for AMD Ryzen™ / 7th Generation...
... Accessories Application DVD Documentation ASUS PRIME X370-A motherboard 2 x Serial ATA 6.0 Gb/s cables 1 x I/O shield 1 x M.2 screw package 1 x Support DVD 1 x User Manual If any of the above items is subject to the physical characteristics of 1920 x 1200 @60Hz - PRIME X370-A specifications summary CPU Chipset Memory Graphics Multi-GPU support Expansion slots AM4 socket for AMD Ryzen™ / 7th Generation...
User Guide
Page 7
... Fanless Design: MOS Heat-sink & Chipset Heat-sink solution - featuring friendly graphics user interface - PRIME X370-A specifications summary Storage LAN Audio USB ASUS unique features ASUS Quiet Thermal Solution AMD X370 Chipset: - 6 x Serial ATA 6.0 Gb/s connectors with RAID 0, RAID 1 and RAID 10 support AMD Ryzen™ Processors: - 1 x M.2 socket 3 with M Key, Type 2242 / 2260 / 2280 / 22110 (PCIe 3.0 x4...
... Fanless Design: MOS Heat-sink & Chipset Heat-sink solution - featuring friendly graphics user interface - PRIME X370-A specifications summary Storage LAN Audio USB ASUS unique features ASUS Quiet Thermal Solution AMD X370 Chipset: - 6 x Serial ATA 6.0 Gb/s connectors with RAID 0, RAID 1 and RAID 10 support AMD Ryzen™ Processors: - 1 x M.2 socket 3 with M Key, Type 2242 / 2260 / 2280 / 22110 (PCIe 3.0 x4...
User Guide
Page 9
... or remove any component, ensure that the ATX power supply is switched off or the power cord is detached from the power supply. ASUS PRIME X370-A 1-1 Product introduction 1 1.1 Before you proceed Take note of the chassis HDMI SOCKET AM4 USB3_34 1 USB3.1 _12 BATTERY LAN_USB3_56 LANGuard ... ASM 1480 M.2(SOCKET3) PCIE SATA X4 V M.2(SOCKET3) 22110 2280 2260 2242 Realtek® PRIME X370-A 8111H 17 PCIEX16_1 SATA6G_6 SATA6G_5 16 PCI1 ASM 15 PCIEX1_1 1083 Super I/O AMD® X370 17 PCIEX16_2 7 16 15 PCI2 ALC 887 PCIEX1_2 SPDIF_OUT AAFP CLRTC COM 14 13 12 11...
... or remove any component, ensure that the ATX power supply is switched off or the power cord is detached from the power supply. ASUS PRIME X370-A 1-1 Product introduction 1 1.1 Before you proceed Take note of the chassis HDMI SOCKET AM4 USB3_34 1 USB3.1 _12 BATTERY LAN_USB3_56 LANGuard ... ASM 1480 M.2(SOCKET3) PCIE SATA X4 V M.2(SOCKET3) 22110 2280 2260 2242 Realtek® PRIME X370-A 8111H 17 PCIEX16_1 SATA6G_6 SATA6G_5 16 PCI1 ASM 15 PCIEX1_1 1083 Super I/O AMD® X370 17 PCIEX16_2 7 16 15 PCI2 ALC 887 PCIEX1_2 SPDIF_OUT AAFP CLRTC COM 14 13 12 11...
User Guide
Page 10
...Volts +5 Volts -5 Volts GND GND GND PSON# GND -12 Volts +3 Volts Power Supply Wattage Calculator at http://support.asus.com/ PowerSupplyCalculator/PSCalculator.aspx?SLanguage=en-us for ATX power supply plugs. CPU and chassis fan connectors (4-pin CPU_FAN, 4-... 1-5 1-5 1-5 1-6 1-6 1-6 1-6 1. ATX power connectors (24-pin EATXPWR, 8-pin EATX12V) These connectors are designed to install additional devices. M.2 Socket 3 5. AMD X370 SATA 6.0Gb/s ports (SATA6G_1~6) 8. System panel connector (20-5 pin PANEL) 9. Otherwise, the system will not boot up if the power is inadequate. • If...
...Volts +5 Volts -5 Volts GND GND GND PSON# GND -12 Volts +3 Volts Power Supply Wattage Calculator at http://support.asus.com/ PowerSupplyCalculator/PSCalculator.aspx?SLanguage=en-us for ATX power supply plugs. CPU and chassis fan connectors (4-pin CPU_FAN, 4-... 1-5 1-5 1-5 1-6 1-6 1-6 1-6 1. ATX power connectors (24-pin EATXPWR, 8-pin EATX12V) These connectors are designed to install additional devices. M.2 Socket 3 5. AMD X370 SATA 6.0Gb/s ports (SATA6G_1~6) 8. System panel connector (20-5 pin PANEL) 9. Otherwise, the system will not boot up if the power is inadequate. • If...
User Guide
Page 11
... cable Before you to install M.2 (NGFF) SSD modules. ASUS PRIME X370-A 1-3 FAN_RGB_HEADER BLUE RED GREEN +12V PIN 1 Fan cable The FAN RGB header supports CPU fans with multi-color LED strips (12V/G/R/B) and with an AMD AM4 socket designed for AMD Ryzen™ / 7th Generation A-series / Athlon™... Do not forget to connect the fan cables to CPU limitation, M.2 socket supported varies by processor. Refer to Central Processing Unit (CPU). AMD AM4 CPU socket This motherboard comes with a maximum power rating of maximum 1A (12 W) fan power. M.2 socket 3 These sockets allow ...
... cable Before you to install M.2 (NGFF) SSD modules. ASUS PRIME X370-A 1-3 FAN_RGB_HEADER BLUE RED GREEN +12V PIN 1 Fan cable The FAN RGB header supports CPU fans with multi-color LED strips (12V/G/R/B) and with an AMD AM4 socket designed for AMD Ryzen™ / 7th Generation A-series / Athlon™... Do not forget to connect the fan cables to CPU limitation, M.2 socket supported varies by processor. Refer to Central Processing Unit (CPU). AMD AM4 CPU socket This motherboard comes with a maximum power rating of maximum 1A (12 W) fan power. M.2 socket 3 These sockets allow ...
User Guide
Page 12
... transfer speeds of up when you to this connector. For more details, refer to 5Gbps, faster charging time for the chassis-mounted system warning speaker. AMD X370 SATA 6.0Gb/s ports (7-pin SATA6G_1~6) These ports connect to this connector. System panel connector (20-5 pin PANEL) PANEL This connector supports several chassis-mounted functions...
... transfer speeds of up when you to this connector. For more details, refer to 5Gbps, faster charging time for the chassis-mounted system warning speaker. AMD X370 SATA 6.0Gb/s ports (7-pin SATA6G_1~6) These ports connect to this connector. System panel connector (20-5 pin PANEL) PANEL This connector supports several chassis-mounted functions...
User Guide
Page 14
... VGA / PCIe card Dual VGA / PCIe cards PCI Express operating mode PCIe 3.0/ 2.0 x16_1 (gray) x16 (on AMD Ryzen™ processors) x8 (on AMD 7th Generation A-series / Athlon™ processors) x16 (on AMD Ryzen™ processors) x8 (on AMD 7th Generation A-series / Athlon™ processors) PCIe 2.0 x16_2 N/A x4 • In single VGA card mode, use...
... VGA / PCIe card Dual VGA / PCIe cards PCI Express operating mode PCIe 3.0/ 2.0 x16_1 (gray) x16 (on AMD Ryzen™ processors) x8 (on AMD 7th Generation A-series / Athlon™ processors) x16 (on AMD Ryzen™ processors) x8 (on AMD 7th Generation A-series / Athlon™ processors) PCIe 2.0 x16_2 N/A x4 • In single VGA card mode, use...
User Guide
Page 15
... PCI2 - shared - shared - - PCIEx1_2 - - - shared - - shared - - - - • For Ryzen™ processors A B C D E PCIEx16_1 - - - - - shared - - - shared - - - - - - - - - - - - - - - - - - - - - M.2 shared - - - - AMD Promonotry Chip XHCI controller shared - - - - Realtek LAN controller - - PCI1 shared - - - - M.2 - - - ASUS PRIME X370-A 1-7 IRQ assignments for this motherboard • For 7th Generation A-series / Athlon™ processors A B C D E PCIEx16_1 - - - PCIEx16_2 shared...
... PCI2 - shared - shared - - PCIEx1_2 - - - shared - - shared - - - - • For Ryzen™ processors A B C D E PCIEx16_1 - - - - - shared - - - shared - - - - - - - - - - - - - - - - - - - - - M.2 shared - - - - AMD Promonotry Chip XHCI controller shared - - - - Realtek LAN controller - - PCI1 shared - - - - M.2 - - - ASUS PRIME X370-A 1-7 IRQ assignments for this motherboard • For 7th Generation A-series / Athlon™ processors A B C D E PCIEx16_1 - - - PCIEx16_2 shared...
User Guide
Page 16
... Orange Linked Orange (Blinking) Data activity Orange (Blinking Ready to a Local Area Network (LAN) through a network hub. In the 4.1, 5.1 and 7.1-channel configurations, the function of AMD AM4 series chipset, all USB devices connected to a microphone. This 15-pin port is for a VGA monitor or other audio sources. 7. LAN (RJ-45) port...
... Orange Linked Orange (Blinking) Data activity Orange (Blinking Ready to a Local Area Network (LAN) through a network hub. In the 4.1, 5.1 and 7.1-channel configurations, the function of AMD AM4 series chipset, all USB devices connected to a microphone. This 15-pin port is for a VGA monitor or other audio sources. 7. LAN (RJ-45) port...
User Guide
Page 18
... if necessary. 1-10 Chapter 1: Product introduction Unplug all power cables before you use a CPU designed for AMD Ryzen™ / 7th Generation A-series / Athlon™ processors. 1.3 Central Processing Unit (CPU) The motherboard comes with an AMD AM4 socket designed for the AM4 socket. The AM4 socket has a different pinout from the FM2+ / FM2...
... if necessary. 1-10 Chapter 1: Product introduction Unplug all power cables before you use a CPU designed for AMD Ryzen™ / 7th Generation A-series / Athlon™ processors. 1.3 Central Processing Unit (CPU) The motherboard comes with an AMD AM4 socket designed for the AM4 socket. The AM4 socket has a different pinout from the FM2+ / FM2...
User Guide
Page 36
... only when you to select the CPU overclocking options to display other BIOS items. 2.5.1 Ai Overclock Tuner [Auto] Allows you install an AMD 7th Generation A-series/AthlonTM processor. 2-15 ASUS PRIME X370-A Select any of the Ai Tweaker menu items. Incorrect field values can also key in the desired value using the numeric keypad...
... only when you to select the CPU overclocking options to display other BIOS items. 2.5.1 Ai Overclock Tuner [Auto] Allows you install an AMD 7th Generation A-series/AthlonTM processor. 2-15 ASUS PRIME X370-A Select any of the Ai Tweaker menu items. Incorrect field values can also key in the desired value using the numeric keypad...
User Guide
Page 37
APU Multiplier [Auto] This item appears only when you install an AMD RyzenTM processor. When you to set this happens, revert to 255. You can also key in the desired value using the numeric keypad. Configuration options: [... function. DID [Auto] This item appears when you to your CPU model. 2.5.4 Custom CPU Core Ratio [Auto] This item appears only when you install an AMD 7th Generation A-series/AthlonTM processor. If this item to 48. 2.5.5 EPU Power Saving Mode [Disabled] Allows you set the memory operating frequency. Use the and...
APU Multiplier [Auto] This item appears only when you install an AMD RyzenTM processor. When you to set this happens, revert to 255. You can also key in the desired value using the numeric keypad. Configuration options: [... function. DID [Auto] This item appears when you to your CPU model. 2.5.4 Custom CPU Core Ratio [Auto] This item appears only when you install an AMD 7th Generation A-series/AthlonTM processor. If this item to 48. 2.5.5 EPU Power Saving Mode [Disabled] Allows you set the memory operating frequency. Use the and...
User Guide
Page 38
... unstable! If this menu may vary depending on the CPU specification. TDP Configuration This item appears only when you install an AMD 7th Generation A-series/AthlonTM processor. Target TDP [Auto] Allows you to manually set the DRAM timing control features. The CPU... Line Calibration [Auto] Load-line Calibration is defined by AMD VRM specifications and affects CPU voltage. VDDCR SOC Load Line Calibration [Auto] Allows you to the default settings. Configuration options: [Auto] [Regular] [High] [Extreme] 2-17 ASUS PRIME X370-A Configuration options: [Keep Current Settings] [OC Tuner] ...
... unstable! If this menu may vary depending on the CPU specification. TDP Configuration This item appears only when you install an AMD 7th Generation A-series/AthlonTM processor. Target TDP [Auto] Allows you to manually set the DRAM timing control features. The CPU... Line Calibration [Auto] Load-line Calibration is defined by AMD VRM specifications and affects CPU voltage. VDDCR SOC Load Line Calibration [Auto] Allows you to the default settings. Configuration options: [Auto] [Regular] [High] [Extreme] 2-17 ASUS PRIME X370-A Configuration options: [Keep Current Settings] [OC Tuner] ...
User Guide
Page 41
... detects. Configuration options: [Enabled] [Disabled] NX Mode [Enabled] Enables or disables the No-execute page protection function. Configuration options: [Enabled] [Disabled] When AMD firmware TPM is disabled, all data saved on it will be different due to the CPU you to malfunction. Configuration options: [Disabled] [Enabled] Chapter 2: BIOS... _PCT objects. 2.6 Advanced menu The Advanced menu items allow you installed. Configuration options: [Enabled] [Disabled] SVM Mode [Disabled] Enables or disables CPU virtualization. AMD fTPM switch [Disabled] Enables or disables...
... detects. Configuration options: [Enabled] [Disabled] NX Mode [Enabled] Enables or disables the No-execute page protection function. Configuration options: [Enabled] [Disabled] When AMD firmware TPM is disabled, all data saved on it will be different due to the CPU you to malfunction. Configuration options: [Disabled] [Enabled] Chapter 2: BIOS... _PCT objects. 2.6 Advanced menu The Advanced menu items allow you installed. Configuration options: [Enabled] [Disabled] SVM Mode [Disabled] Enables or disables CPU virtualization. AMD fTPM switch [Disabled] Enables or disables...
User Guide
Page 42
...AMD® Dual Graphics technology. Hyper Kit Mode [Disabled] Disable this option for M.2 devices. Configuration options: [Enabled] [Disabled] Core Leveling Mode [Automatic mode] Allows you set the Integrated Graphics item to the corresponding SATA port. Primary Video Device [PCIE / PCI Video] Selects the primary display device. Configuration options: [Disabled] [Enabled] 2-21 ASUS PRIME X370...Enable this option for ASUS Hyper Kit card. Configuration options: [Disabled] [Enabled] The IGFX Multi-Monitor item must be enabled before using an AMD RyzenTM processor. Configuration ...
...AMD® Dual Graphics technology. Hyper Kit Mode [Disabled] Disable this option for M.2 devices. Configuration options: [Enabled] [Disabled] Core Leveling Mode [Automatic mode] Allows you set the Integrated Graphics item to the corresponding SATA port. Primary Video Device [PCIE / PCI Video] Selects the primary display device. Configuration options: [Disabled] [Enabled] 2-21 ASUS PRIME X370...Enable this option for ASUS Hyper Kit card. Configuration options: [Disabled] [Enabled] The IGFX Multi-Monitor item must be enabled before using an AMD RyzenTM processor. Configuration ...
User Guide
Page 46
This item appears only when you install an AMD RyzenTM processor. 2.7 Monitor menu The Monitor menu displays the system temperature/power status, and allows you do not want to detect this menu display the ... CPU and motherboard temperatures. 2.6.9 AMD CBS The items in rotations per minute (RPM). Select [Ignore] if you do not wish to display the detected temperatures. 2.7.2 CPU Fan/ Chassis Fan 1/2 Speed [xxxx RPM]/ [Ignore]/ [N/A] The onboard hardware monitor automatically detects and displays the CPU and chassis fan 1/2 speeds in this item. 2-25 ASUS PRIME X370-A
This item appears only when you install an AMD RyzenTM processor. 2.7 Monitor menu The Monitor menu displays the system temperature/power status, and allows you do not want to detect this menu display the ... CPU and motherboard temperatures. 2.6.9 AMD CBS The items in rotations per minute (RPM). Select [Ignore] if you do not wish to display the detected temperatures. 2.7.2 CPU Fan/ Chassis Fan 1/2 Speed [xxxx RPM]/ [Ignore]/ [N/A] The onboard hardware monitor automatically detects and displays the CPU and chassis fan 1/2 speeds in this item. 2-25 ASUS PRIME X370-A
