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Contents Safety information...v About this guide...vi PRIME X399-A specifications summary viii Package contents...xii Installation tools and components xiii Chapter 1: Product Introduction 1.1 Motherboard ...2.1.4 DIMM installation 2-6 2.1.5 ATX power connection 2-7 2.1.6 SATA device connection 2-8 2.1.7 Front I/O connector 2-9 2.1.8 Expansion card installation 2-10 2.1.9 M.2 installation 2-11 2.2 BIOS update utility 2-12 2.3 Motherboard rear and audio connections 2-13 2.3.1 Rear I/O connection 2-13 2.3.2 Audio I/O connections 2-15 2.4 Starting up for the first time 2-17...
Contents Safety information...v About this guide...vi PRIME X399-A specifications summary viii Package contents...xii Installation tools and components xiii Chapter 1: Product Introduction 1.1 Motherboard ...2.1.4 DIMM installation 2-6 2.1.5 ATX power connection 2-7 2.1.6 SATA device connection 2-8 2.1.7 Front I/O connector 2-9 2.1.8 Expansion card installation 2-10 2.1.9 M.2 installation 2-11 2.2 BIOS update utility 2-12 2.3 Motherboard rear and audio connections 2-13 2.3.1 Rear I/O connection 2-13 2.3.2 Audio I/O connections 2-15 2.4 Starting up for the first time 2-17...
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... menu 3-16 3.8 Boot menu 3-17 3.9 Tool menu 3-18 3.9.1 ASUS EZ Flash 3 Utility 3-18 3.9.2 Secure Erase 3-19 3.9.3 ASUS Overclocking Profile 3-20 3.9.4 ASUS SPD Information 3-20 3.9.5 Graphics Card Information 3-20 3.10 Exit menu 3-21 3.11 Updating BIOS 3-22 3.11.1 EZ Update 3-22 3.11.2 ASUS EZ Flash 3 3-23 3.11.3 ASUS CrashFree BIOS 3 3-25 Chapter 4: RAID Support 4.1 AMD RAID Array configurations...
... menu 3-16 3.8 Boot menu 3-17 3.9 Tool menu 3-18 3.9.1 ASUS EZ Flash 3 Utility 3-18 3.9.2 Secure Erase 3-19 3.9.3 ASUS Overclocking Profile 3-20 3.9.4 ASUS SPD Information 3-20 3.9.5 Graphics Card Information 3-20 3.10 Exit menu 3-21 3.11 Updating BIOS 3-22 3.11.1 EZ Update 3-22 3.11.2 ASUS EZ Flash 3 3-23 3.11.3 ASUS CrashFree BIOS 3 3-25 Chapter 4: RAID Support 4.1 AMD RAID Array configurations...
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... flyers, that you need when installing and configuring the motherboard. ASUS website The ASUS website (www.asus.com) provides updated information on the motherboard. 2. Where to find more information Refer to change system settings through the BIOS Setup menus. About this guide is organized This guide contains the... documents are also provided. 4. Chapter 1: Product Introduction This chapter describes the features of the switches, jumpers, and connectors on ASUS hardware and software products. 2. vi Chapter 3: BIOS Setup This chapter tells how to the following parts: 1.
... flyers, that you need when installing and configuring the motherboard. ASUS website The ASUS website (www.asus.com) provides updated information on the motherboard. 2. Where to find more information Refer to change system settings through the BIOS Setup menus. About this guide is organized This guide contains the... documents are also provided. 4. Chapter 1: Product Introduction This chapter describes the features of the switches, jumpers, and connectors on ASUS hardware and software products. 2. vi Chapter 3: BIOS Setup This chapter tells how to the following parts: 1.
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PRIME X399-A specifications summary Audio ASUS Exclusive Features Realtek® S1220A 8-channel high definition audio CODEC featuring Crystal Sound 3 - EMI protection cover to prevent electrical noise to ensure consistent ... CPU Power: Digital 8+3 phase power design - Internal audio Amplifier to 32-Bit/192kHz playback* - Supports up popping noise to limitations in ) support - OC Design: ASUS PRO Clock Technology - Perfectly consolidates better CPU performance, power saving, digital power control, system cooling and app usages. DTS® Connect - Auto Tuning, TPU EPU...
PRIME X399-A specifications summary Audio ASUS Exclusive Features Realtek® S1220A 8-channel high definition audio CODEC featuring Crystal Sound 3 - EMI protection cover to prevent electrical noise to ensure consistent ... CPU Power: Digital 8+3 phase power design - Internal audio Amplifier to 32-Bit/192kHz playback* - Supports up popping noise to limitations in ) support - OC Design: ASUS PRO Clock Technology - Perfectly consolidates better CPU performance, power saving, digital power control, system cooling and app usages. DTS® Connect - Auto Tuning, TPU EPU...
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Fortified PCIe with solid soldering - ASUS LANGuard - ASUS DIGI+ VRM - AI Suite 3 - ASUS Fan Xpert 4 - ASUS Q-Code - ASUS Q-Connector - World-class circuit-protecting power design - ASUS Q-DIMM - ASUS SafeSlot Core - ASUS Stylish MOS & M.2 heatsink Design 1 x BIOS Flashback button 1 x Optical S/PDIF out 1 x Intel LAN (RJ45) port... PRIME X399-A specifications summary ASUS Exclusive Features ASUS Special Features ASUS Quiet Thermal Solution Back Panel I /O: 3X corrosion-resistance for greater durability! - ASUS Q-LED (CPU, DRAM, VGA, Boot Device LED) - ASUS Q-Slot ASUS ...
Fortified PCIe with solid soldering - ASUS LANGuard - ASUS DIGI+ VRM - AI Suite 3 - ASUS Fan Xpert 4 - ASUS Q-Code - ASUS Q-Connector - World-class circuit-protecting power design - ASUS Q-DIMM - ASUS SafeSlot Core - ASUS Stylish MOS & M.2 heatsink Design 1 x BIOS Flashback button 1 x Optical S/PDIF out 1 x Intel LAN (RJ45) port... PRIME X399-A specifications summary ASUS Exclusive Features ASUS Special Features ASUS Quiet Thermal Solution Back Panel I /O: 3X corrosion-resistance for greater durability! - ASUS Q-LED (CPU, DRAM, VGA, Boot Device LED) - ASUS Q-Slot ASUS ...
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xi PRIME X399-A specifications summary Internal I/O connectors BIOS Features Manageability Support DVD contents Operating system support Form factor 1 x USB 3.1 Gen 2 front panel connector 2 x USB 3.0 Gen 1 connectors support additional 4 USB ports...panel audio connector (AAFP) 1 x System panel connector (Q-Connector) 1 x Q_Code LED 1 x Clear CMOS header 1 x Power-on button 128 Mb Flash ROM, UEFI AMI BIOS, PnP, WfM2.0, SM BIOS 3.0, ACPI 6.1, Multi-language BIOS, ASUS EZ Flash 3, CrashFree BIOS 3, F11 EZ Tuning Wizard, F6 Qfan Control, F3 My Favorites, Last Modified log, F12 PrintScreen, and...
xi PRIME X399-A specifications summary Internal I/O connectors BIOS Features Manageability Support DVD contents Operating system support Form factor 1 x USB 3.1 Gen 2 front panel connector 2 x USB 3.0 Gen 1 connectors support additional 4 USB ports...panel audio connector (AAFP) 1 x System panel connector (Q-Connector) 1 x Q_Code LED 1 x Clear CMOS header 1 x Power-on button 128 Mb Flash ROM, UEFI AMI BIOS, PnP, WfM2.0, SM BIOS 3.0, ACPI 6.1, Multi-language BIOS, ASUS EZ Flash 3, CrashFree BIOS 3, F11 EZ Tuning Wizard, F6 Qfan Control, F3 My Favorites, Last Modified log, F12 PrintScreen, and...
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...) DDR4 DIMM_C2 (64bit, 288-pin module) U31G2_C1 CHA_FAN1 M.2_2(SOCKET3) U31G1_12 Intel I211AT SocketTR4 ASM U31G2_EA2 U31G2_EC1 3142 6 AUDIO COV_FAN 5 128Mb BIOS PCIEX16_1 DIGI+ EPU Super PCIEX4 I/O PCIEX16_2 PRO Clock AMD X399 Crystal Sound PCIEX16_3 TPU PCIEX1 Lithium Cell CMOS Power 2280 2260 2242 M.2_1(SOCKET3) U31G1_910 5 7 6 8 9 U.2 10 11 SATA6G_5 SATA6G_3 SATA6G_1...
...) DDR4 DIMM_C2 (64bit, 288-pin module) U31G2_C1 CHA_FAN1 M.2_2(SOCKET3) U31G1_12 Intel I211AT SocketTR4 ASM U31G2_EA2 U31G2_EC1 3142 6 AUDIO COV_FAN 5 128Mb BIOS PCIEX16_1 DIGI+ EPU Super PCIEX4 I/O PCIEX16_2 PRO Clock AMD X399 Crystal Sound PCIEX16_3 TPU PCIEX1 Lithium Cell CMOS Power 2280 2260 2242 M.2_1(SOCKET3) U31G1_910 5 7 6 8 9 U.2 10 11 SATA6G_5 SATA6G_3 SATA6G_1...
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... This jumper allows you to overclocking. Hold down and reboot the system so the BIOS can clear the CMOS memory of date, time, and system setup parameters by erasing the CMOS RTC RAM data. Chapter 1 PRIME X399-A Clear RTC RAM CLRTC PIN 1 To erase the RTC RAM: 1. Placing ... in CMOS, which include system setup information such as system passwords. Shut down the key during the boot process and enter BIOS setup to clear the CMOS RTC RAM data. ASUS PRIME X399-A 1-9 Short-circuit pin 1-2 with a metal object or jumper cap for about 5-10 seconds. 3. 1.1.6 Jumpers, buttons and...
... This jumper allows you to overclocking. Hold down and reboot the system so the BIOS can clear the CMOS memory of date, time, and system setup parameters by erasing the CMOS RTC RAM data. Chapter 1 PRIME X399-A Clear RTC RAM CLRTC PIN 1 To erase the RTC RAM: 1. Placing ... in CMOS, which include system setup information such as system passwords. Shut down the key during the boot process and enter BIOS setup to clear the CMOS RTC RAM data. ASUS PRIME X399-A 1-9 Short-circuit pin 1-2 with a metal object or jumper cap for about 5-10 seconds. 3. 1.1.6 Jumpers, buttons and...
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If you installed Serial ATA hard disk drives, you intend to create a Serial ATA RAID set using these connectors, set to [AHCI] by default. If you can create a RAID 0, 1, and 10 configuration through the onboard AMD X399 chipset. AMD Serial ATA 6.0 Gb/s connectors (7-pin SATA6G_1-6) These connectors connect to [RAID]. ASUS PRIME X399-A 1-17 Chapter 1 PRIME X399-A Serial ATA 6.0Gb/s connectors These connectors are set the SATA Mode Selection item in the BIOS to Serial ATA 6.0 Gb/s hard disk drives via Serial ATA 6.0 Gb/s signal cables. 1.1.8 Internal connectors 1.
If you installed Serial ATA hard disk drives, you intend to create a Serial ATA RAID set using these connectors, set to [AHCI] by default. If you can create a RAID 0, 1, and 10 configuration through the onboard AMD X399 chipset. AMD Serial ATA 6.0 Gb/s connectors (7-pin SATA6G_1-6) These connectors connect to [RAID]. ASUS PRIME X399-A 1-17 Chapter 1 PRIME X399-A Serial ATA 6.0Gb/s connectors These connectors are set the SATA Mode Selection item in the BIOS to Serial ATA 6.0 Gb/s hard disk drives via Serial ATA 6.0 Gb/s signal cables. 1.1.8 Internal connectors 1.
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... until the Flashback LED blinks three times, indicating that the BIOS updating process is completed. Visit https://www.asus.com/support/ and download the latest BIOS version for five seconds and turns into a solid light, this motherboard. 3. BIOS Flashback button USB BIOS Flashback port 6. If the BIOS program is enabled. Insert a USB storage device to your...
... until the Flashback LED blinks three times, indicating that the BIOS updating process is completed. Visit https://www.asus.com/support/ and download the latest BIOS version for five seconds and turns into a solid light, this motherboard. 3. BIOS Flashback button USB BIOS Flashback port 6. If the BIOS program is enabled. Insert a USB storage device to your...
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... performance for your USB 3.1 Gen 2 devices to ports with matching data transfer rate. Chapter 2 2.3 Motherboard rear and audio connections 2.3.1 Rear I/O connection 1 2 3 4 5 6 7 89 Rear panel connectors 1. ASUS PRIME X399-A 2-13 Please connect your USB 3.1 Gen 1 devices to USB 3.1 Gen 1 ports and your devices. USB BIOS Flashback button 6. 2. USB 3.1 Gen 1 ports 5, 6, 7, and 8. 7. 3. port supports USB...
... performance for your USB 3.1 Gen 2 devices to ports with matching data transfer rate. Chapter 2 2.3 Motherboard rear and audio connections 2.3.1 Rear I/O connection 1 2 3 4 5 6 7 89 Rear panel connectors 1. ASUS PRIME X399-A 2-13 Please connect your USB 3.1 Gen 1 devices to USB 3.1 Gen 1 ports and your devices. USB BIOS Flashback button 6. 2. USB 3.1 Gen 1 ports 5, 6, 7, and 8. 7. 3. port supports USB...
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...'s LEDs may continue to wake up - - then steady) from S5 mode ACT/LINK SPEED LED LED LAN port You can disable the LAN controllers in BIOS.
...'s LEDs may continue to wake up - - then steady) from S5 mode ACT/LINK SPEED LED LED LAN port You can disable the LAN controllers in BIOS.
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...chain) c. Connect the power cord to the power connector at the back of the BIOS setting. Connect the power cord to a power outlet that all the connections, replace the system case cover. 2. ASUS PRIME X399-A 2-17 The system then runs the power-on the screen. Check the jumper ...the system LED turns on the devices in Chapter 3. 2.5 Turning off the computer While the system is equipped with the last device on the BIOS setting. Chapter 2 2.4 Starting up for assistance. While the tests are off mode regardless of the system chassis. 4. System power 6. At power...
...chain) c. Connect the power cord to the power connector at the back of the BIOS setting. Connect the power cord to a power outlet that all the connections, replace the system case cover. 2. ASUS PRIME X399-A 2-17 The system then runs the power-on the screen. Check the jumper ...the system LED turns on the devices in Chapter 3. 2.5 Turning off the computer While the system is equipped with the last device on the BIOS setting. Chapter 2 2.4 Starting up for assistance. While the tests are off mode regardless of the system chassis. 4. System power 6. At power...
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... may result to ensure optimal performance. Inappropriate BIOS settings may vary due to run the BIOS Setup. • You have installed a new system component that requires further BIOS settings or update. In normal circumstances, the default BIOS settings apply to most conditions to instability or boot failure. Chapter 3 ASUS PRIME X399-A 3-1 BIOS (Basic Input and Output System) stores...
... may result to ensure optimal performance. Inappropriate BIOS settings may vary due to run the BIOS Setup. • You have installed a new system component that requires further BIOS settings or update. In normal circumstances, the default BIOS settings apply to most conditions to instability or boot failure. Chapter 3 ASUS PRIME X399-A 3-1 BIOS (Basic Input and Output System) stores...
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...See section 1.1.6 Jumpers, buttons and holes for the detailed BIOS content manual. Entering BIOS Setup after POST To enter BIOS Setup after changing any BIOS setting, load the default settings to ensure system compatibility and stability. Please visit ASUS website for information on . After doing either of the three... options, press key to enter BIOS. • The BIOS setup screens shown in this option only if you want to use the mouse to control the BIOS setup program. • ...
...See section 1.1.6 Jumpers, buttons and holes for the detailed BIOS content manual. Entering BIOS Setup after POST To enter BIOS Setup after changing any BIOS setting, load the default settings to ensure system compatibility and stability. Please visit ASUS website for information on . After doing either of the three... options, press key to enter BIOS. • The BIOS setup screens shown in this option only if you want to use the mouse to control the BIOS setup program. • ...
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... voltage output, CPU/chassis/power fan speed, and SATA information Displays the system properties of the BIOS setup program Configures system overclocking Chapter 3 Displays the CPU Fan's speed. ASUS PRIME X399-A 3-3 The default screen for the advanced BIOS settings. Click the button to manually tune the fans Loads optimized default settings Saves the changes and...
... voltage output, CPU/chassis/power fan speed, and SATA information Displays the system properties of the BIOS setup program Configures system overclocking Chapter 3 Displays the CPU Fan's speed. ASUS PRIME X399-A 3-3 The default screen for the advanced BIOS settings. Click the button to manually tune the fans Loads optimized default settings Saves the changes and...
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... of the Advanced Mode. Refer to EZ Mode Search on the FAQ Pop-up Menu Displays the CPU temperature, CPU, and memory voltage output 3-4 Chapter 3: BIOS Setup Configuration fields Menu bar Language Scroll bar MyFavorite(F3) Qfan Control(F6) EZ Tuning Wizard(F11) Hot Keys Chapter 3 Menu items General help Last...(F7) or press the hotkey. 3.2.2 Advanced Mode The Advanced Mode provides advanced options for the detailed configurations. To switch from EZ Mode to configure the BIOS settings.
... of the Advanced Mode. Refer to EZ Mode Search on the FAQ Pop-up Menu Displays the CPU temperature, CPU, and memory voltage output 3-4 Chapter 3: BIOS Setup Configuration fields Menu bar Language Scroll bar MyFavorite(F3) Qfan Control(F6) EZ Tuning Wizard(F11) Hot Keys Chapter 3 Menu items General help Last...(F7) or press the hotkey. 3.2.2 Advanced Mode The Advanced Mode provides advanced options for the detailed configurations. To switch from EZ Mode to configure the BIOS settings.
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... the frequently-used system settings and configuration. To display the submenu, select the item and press . Select frequentlyused BIOS settings and save it to RAID mode. Refer to section 3.2.4 EZ Tuning Wizard for more information. Q-Fan Control... above the menu bar contains the languages that you want to view and tweak the overclocking settings of your BIOS screen. Language This button above the menu bar allows you to change the motherboard's SATA mode from AHCI...temperature, power status, and changing the fan settings. Refer to your BIOS. Chapter 3 ASUS PRIME X399-A 3-5
... the frequently-used system settings and configuration. To display the submenu, select the item and press . Select frequentlyused BIOS settings and save it to RAID mode. Refer to section 3.2.4 EZ Tuning Wizard for more information. Q-Fan Control... above the menu bar contains the languages that you want to view and tweak the overclocking settings of your BIOS screen. Language This button above the menu bar allows you to change the motherboard's SATA mode from AHCI...temperature, power status, and changing the fan settings. Refer to your BIOS. Chapter 3 ASUS PRIME X399-A 3-5
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... fields These fields show a QR code, scan this button to show the values for the BIOS setup program. To change the value of a field, select it to the removable storage device. Use ...Move your mouse over this QR code on your mobile device to connect to the BIOS FAQ web page of the ASUS support website. You can also scan the following QR code: Hot keys This button ...above the menu bar contains the navigation keys for the menu items. If an item is not user-configurable. Use key to capture the BIOS...
... fields These fields show a QR code, scan this button to show the values for the BIOS setup program. To change the value of a field, select it to the removable storage device. Use ...Move your mouse over this QR code on your mobile device to connect to the BIOS FAQ web page of the ASUS support website. You can also scan the following QR code: Hot keys This button ...above the menu bar contains the navigation keys for the menu items. If an item is not user-configurable. Use key to capture the BIOS...
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... manually configure your fans 1. Configuring fans manually Select Manual from the list of profiles to manually configure your fans: Select to their best settings. 3-8 Chapter 3: BIOS Setup
... manually configure your fans 1. Configuring fans manually Select Manual from the list of profiles to manually configure your fans: Select to their best settings. 3-8 Chapter 3: BIOS Setup