Asus PRIME X370-A driver and firmware
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User Guide - Page 2
... the express written permission of ASUSTeK COMPUTER INC. ("ASUS"). Product warranty or service will not be extended if: (1) the product is repaired, modified or altered, unless such repair, modification of alteration is authorized in writing by ASUS; or (2) the serial number of the product is defaced or missing. ASUS PROVIDES THIS MANUAL "AS IS" WITHOUT WARRANTY OF...
User Guide - Page 3
... information iv About this guide iv Package contents vi PRIME X370-A specifications summary vi
Chapter 1: Product introduction
1.1 Before you proceed 1-1 1.2 Motherboard overview 1-1 1.3 Central Processing Unit (CPU 1-10 1.4 System memory 1-12 1.5 Software support 1-13
Chapter 2: BIOS information
2.1 Managing and updating your BIOS 2-1 2.2 BIOS setup program 2-5 2.3 My Favorites 2-12...
User Guide - Page 4
... try to fix it by yourself. Contact a qualified service technician or your retailer.
Operation safety
• Before installing the motherboard and adding components, carefully read all the manuals that came with the package.
• Before using the product, ensure all cables are correctly connected and the power cables are not damaged. If you detect any damage, contact...
User Guide - Page 5
... updates.
1. ASUS websites
The ASUS website provides updated information on ASUS hardware and software products. Refer to the ASUS contact information.
2. Optional documentation
Your product package may include optional documentation, such as warranty flyers, that may have been added by your dealer. These documents are not part of the standard package.
Conventions used in this guide
To ensure...
User Guide - Page 8
... panel connector 128 Mb Flash ROM, UEFI AMI BIOS, PnP, WfM2.0, SM BIOS 3.0, ACPI 6.1,
Multi-language BIOS, ASUS EZ Flash 3, ASUS CrashFree BIOS 3, My Favorites, Last Modified log, F12 PrintScreen, ASUS DRAM SPD (Serial Presence Detect) memory information, F6 Qfan Control
WfM 2.0, DMI 3.0, WOL by PME, PXE
Drivers ASUS utilities ASUS Update Anti-virus software (OEM version) Windows® 10 (64-bit...
User Guide - Page 9
... DIMM_A2 (64bit, 288-pin module) DDR4 DIMM_B1 (64bit, 288-pin module) DDR4 DIMM_B2 (64bit, 288-pin module)
EATXPWR
30.5cm(12in)
Place this side towards the rear of the
chassis
HDMI
SOCKET AM4
USB3_34
1
USB3.1 _12
BATTERY
LAN_USB3_56
LANGuard CHA_FAN1
RGB_HEADER
AUDIO
128Mb BIOS
ASM 1480
M.2(SOCKET3)
PCIE SATA X4 V
M.2(SOCKET3)
22110
2280
2260
2242
Realtek®
PRIME X370-A
8111H...
User Guide - Page 10
... 5. AMD AM4 CPU socket 6. DDR4 DIMM slots 7. AMD X370 SATA 6.0Gb/s ports (SATA6G_1~6) 8. System panel connector (20-5 pin PANEL) 9. USB 3.1 Gen 1 connector (20-1 pin USB3_12) 10. USB 2.0 connectors (10-1 pin USB3~6) 11. Serial port connector (10-1 pin COM) 12. Digital audio connector (4-1 pin SPDIF_OUT) 13. Front panel audio connector (10-1 pin AAFP) 14. Clear RTC RAM (2-pin CLRTC) 15. PCI Express...
User Guide - Page 11
... / 2280 / 22110 storage devices. • Due to CPU limitation, M.2 socket supported varies by processor. Refer to the
specifications summary table for more details.
5. AMD AM4 CPU socket This motherboard comes with an AMD AM4 socket designed for AMD Ryzen™ / 7th Generation A-series / Athlon™ processors.
For more details, refer to Central Processing Unit (CPU).
ASUS PRIME X370-A
1-3
User Guide - Page 12
..., refer to System memory.
7. AMD X370 SATA 6.0Gb/s ports (7-pin SATA6G_1~6)
These ports connect to SATA 6.0 Gb/s hard disk drives via SATA 6.0 Gb/s signal cables.
SATA6G
GND RSATA_TXP RSATA_TXN
GND RSATA_RXN RSATA_RXP
GND
8. System panel connector (20-5 pin PANEL)
PANEL
This connector supports several chassis-mounted functions. +PWR_LED- PWR_SW SPEAKER
• System power LED (4-pin PWR_LED...
User Guide - Page 13
... cable to the USB connectors. Doing so will damage the motherboard!
USB34
PIN 1
11. Serial port connector (10-1 pin COM)
This connector is for a serial (COM) port. Connect the serial port module cable to this connector, then install the module to a slot opening at the back of the system chassis.
RXD
COM
PIN 1
DTR
DSR
CTS
RTS
GND
TXD
DCD
12. Digital audio...
User Guide - Page 15
...
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AMD Promonotry Chip XHCI controller
shared -
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SATA controller
- shared -
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HD audio controller
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- shared -
Realtek LAN controller
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- shared -
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F
G
H
- shared -
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When using PCI cards on shared slots, ensure that the drivers support "Share IRQ" or that the...
User Guide - Page 21
... the drivers, software applications, and utilities that you can install to avail all motherboard features.
The contents of the Support DVD are subject to change at any time without notice. Visit the ASUS website at www.asus.com for updates.
To run the Support DVD Place the Support DVD into the optical drive. If Autorun is enabled in your computer, the DVD automatically displays...
User Guide - Page 22
... goes into POST.
To launch EZ Update, click EZ Update on the AI Suite 3 main menu bar.
Click to automatically update your
motherboard's driver, software and
firmware
Click to find and select the BIOS
from file
Click to select a boot logo
Click to update the BIOS
EZ Update requires an Internet connection either through a network or an ISP (Internet Service Provider).
2-1
ASUS PRIME X370-A
User Guide - Page 24
...the BIOS To recover the BIOS: 1. Turn on the system. 2. Insert the support DVD to the optical drive or the USB flash drive that contains the
BIOS file to the USB port. 3. The utility automatically checks the devices for the BIOS file. When found, the utility
reads the BIOS file and enters ASUS EZ Flash 2 utility automatically. 4. The system requires you to enter BIOS Setup to recover BIOS settings...
User Guide - Page 26
... your screen.
• Visit the ASUS website at www.asus.com to download the latest BIOS file for this motherboard.
• Ensure that a USB mouse is connected to your motherboard if you want to use the mouse to control the BIOS setup program.
• If the system becomes unstable after changing any BIOS setting, load the default settings to ensure system compatibility and stability...
User Guide - Page 41
... or disables AMD CPU firmware TPM. Configuration options: [Enabled] [Disabled]
When AMD firmware TPM is disabled, all data saved on it will be lost.
2.6.1 CPU Configuration
The items in this menu show the CPU-related information that the BIOS automatically detects.
The items shown in submenu may be different due to the CPU you installed.
PSS Support [Enabled] Enables...
User Guide - Page 51
...] For better compatibility, enable the CSM to fully support the non-UEFI
driver add-on devices or the Windows® UEFI mode. [Disabled] Disable the CSM to fully support the Windows® Security Update and
Security Boot.
The following four items appear when you set Launch CSM to [Enabled].
Boot Device Control [UEFI and Legacy OPROM] Allows you to select...
User Guide - Page 52
...File Allows you to save the downloaded db to a USB storage device. Set New Key Allows you to load the downloaded db from a USB storage device. Append Key Allows you to load the additional KEK from a storage device for an additional db and dbx loaded management.
The db file must be formatted as a UEFI variable structure with time-based authenticated variable. DBX Management
2-31
ASUS PRIME X370-A
User Guide - Page 53
... items that are no longer trusted and cannot be loaded.
Save to File Allows you to load the downloaded dbx to a USB storage device. Set New Key Allows you to load the downloaded dbx from a USB storage device. Append Key Allows you to load the additional KEK from a storage device for an additional db and dbx loaded management.
The dbx file must be formatted as a UEFI...
User Guide - Page 55
... exit the Setup program without saving your changes. When you select this option or if you press , a confirmation window appears. Select OK to discard changes and exit. Launch EFI Shell from USB drives This option allows you to attempt to launch the EFI Shell application (shellx64.efi) from one of the available USB devices.
Chapter 2: BIOS information...