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Contents Safety information...v About this guide...vi ROG CROSSHAIR VIII DARK HERO specifications summary vii Package contents...xii Installation tools and components xiii Chapter 1: Product Introduction 1.1 Before... 2-8 2.1.6 ATX power connection 2-9 2.1.7 SATA device connection 2-10 2.1.8 Front I/O connector 2-11 2.1.9 Expansion card installation 2-12 2.1.10 Wi-Fi antenna installation 2-13 2.2 BIOS update utility 2-14 2.3 Motherboard rear and audio connections 2-15 2.3.1 Rear I/O connection 2-15 2.3.2 Audio I/O connections 2-16 2.4 Starting up for the first time 2-19...
Contents Safety information...v About this guide...vi ROG CROSSHAIR VIII DARK HERO specifications summary vii Package contents...xii Installation tools and components xiii Chapter 1: Product Introduction 1.1 Before... 2-8 2.1.6 ATX power connection 2-9 2.1.7 SATA device connection 2-10 2.1.8 Front I/O connector 2-11 2.1.9 Expansion card installation 2-12 2.1.10 Wi-Fi antenna installation 2-13 2.2 BIOS update utility 2-14 2.3 Motherboard rear and audio connections 2-15 2.3.1 Rear I/O connection 2-15 2.3.2 Audio I/O connections 2-16 2.4 Starting up for the first time 2-19...
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... additional information to help you perform certain tasks properly, take note of the motherboard and the new technology it supports. ASUS website The ASUS website (www.asus.com) provides updated information on RAID. These documents are not part of the switches, jumpers, and connectors on the ...package may have to perform when installing system components. • Chapter 3: BIOS and RAID Support This chapter tells how to boot into the BIOS, upgrade BIOS using the EZ Flash Utility and support on ASUS hardware and software products. 2. Where to find more information Refer to ...
... additional information to help you perform certain tasks properly, take note of the motherboard and the new technology it supports. ASUS website The ASUS website (www.asus.com) provides updated information on RAID. These documents are not part of the switches, jumpers, and connectors on the ...package may have to perform when installing system components. • Chapter 3: BIOS and RAID Support This chapter tells how to boot into the BIOS, upgrade BIOS using the EZ Flash Utility and support on ASUS hardware and software products. 2. Where to find more information Refer to ...
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...2 ports (7 x Type-A + 1 x USB Type-C®) 4 x USB 3.2 Gen 1 ports (4 x Type-A) 1 x ASUS Wi-Fi Module 1 x Realtek RTL8125-CG 2.5Gb Ethernet port 1 x Intel® I211-AT 1Gb Ethernet port 5 x Gold-plated ...audio jacks 1 x Optical S/PDIF out port 1 x BIOS FlashBack™ button 1 x Clear CMOS button Fan and cooling related 1 x 4-pin CPU Fan header(s) 1 x 4-...support(s) additional 4 USB 2.0 ports (continued on the next page) ix ROG CROSSHAIR VIII DARK HERO specifications summary Audio Back I/O Ports Internal I/O connectors Audio Features -
...2 ports (7 x Type-A + 1 x USB Type-C®) 4 x USB 3.2 Gen 1 ports (4 x Type-A) 1 x ASUS Wi-Fi Module 1 x Realtek RTL8125-CG 2.5Gb Ethernet port 1 x Intel® I211-AT 1Gb Ethernet port 5 x Gold-plated ...audio jacks 1 x Optical S/PDIF out port 1 x BIOS FlashBack™ button 1 x Clear CMOS button Fan and cooling related 1 x 4-pin CPU Fan header(s) 1 x 4-...support(s) additional 4 USB 2.0 ports (continued on the next page) ix ROG CROSSHAIR VIII DARK HERO specifications summary Audio Back I/O Ports Internal I/O connectors Audio Features -
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... (CPU [red], DRAM [yellow], VGA [white], Boot Device [yellow green]) - BIOS FlashBack™ button - Clear CMOS button - SafeSlot AURA Sync - ReTry button - TI CSD95410RRB Power Stage (90A) - MicroFine Alloy Choke ASUS Q-Design - Aluminum M.2 heatsink - Addressable Gen 2 RGB header(s) (continued on the next page) x ... button 1 x 10-1 pin System Panel header 1 x Thermal Sensor header Extreme OC Kit - AURA RGB header(s) - Chipset passive cooling solution ASUS EZ DIY - ROG CROSSHAIR VIII DARK HERO specifications summary Internal I /O shield - ASUS Q-Code - Procool II...
... (CPU [red], DRAM [yellow], VGA [white], Boot Device [yellow green]) - BIOS FlashBack™ button - Clear CMOS button - SafeSlot AURA Sync - ReTry button - TI CSD95410RRB Power Stage (90A) - MicroFine Alloy Choke ASUS Q-Design - Aluminum M.2 heatsink - Addressable Gen 2 RGB header(s) (continued on the next page) x ... button 1 x 10-1 pin System Panel header 1 x Thermal Sensor header Extreme OC Kit - AURA RGB header(s) - Chipset passive cooling solution ASUS EZ DIY - ROG CROSSHAIR VIII DARK HERO specifications summary Internal I /O shield - ASUS Q-Code - Procool II...
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... UEFI BIOS ASUS EZ DIY - ROG CPU-Z - DTS® Sound Unbound - Overwolf - EZ update - ASUS CrashFree BIOS 3 - Please refer to change without notice. GameFirst VI - Aura Creator - AI Charger - ROG CROSSHAIR VIII DARK HERO specifications summary Software Features BIOS Manageability Operating System Form Factor ROG Exclusive Software - Sonic Radar III - Anti-virus software ASUS Exclusive Software Features Armoury Crate - xi ASUS EZ Flash 3 - ASUS UEFI BIOS...
... UEFI BIOS ASUS EZ DIY - ROG CPU-Z - DTS® Sound Unbound - Overwolf - EZ update - ASUS CrashFree BIOS 3 - Please refer to change without notice. GameFirst VI - Aura Creator - AI Charger - ROG CROSSHAIR VIII DARK HERO specifications summary Software Features BIOS Manageability Operating System Form Factor ROG Exclusive Software - Sonic Radar III - Anti-virus software ASUS Exclusive Software Features Armoury Crate - xi ASUS EZ Flash 3 - ASUS UEFI BIOS...
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... card sold separately. • Enable the Hyper M.2 X16 series card under BIOS settings. AMD Ryzen™ 4000 G-Series Desktop Processors Slot Description 1. x4+x4+x4+x4 x4+x4 - x8+x4+x4 x4+x4 - PCIe 3.0 x16_2 Up to 3 SSD on CPU support - ROG CROSSHAIR VIII DARK HERO 1-9 Chapter 1 Hyper M.2 X16 series card configuration PCIe bifurcation settings in...
... card sold separately. • Enable the Hyper M.2 X16 series card under BIOS settings. AMD Ryzen™ 4000 G-Series Desktop Processors Slot Description 1. x4+x4+x4+x4 x4+x4 - x8+x4+x4 x4+x4 - PCIe 3.0 x16_2 Up to 3 SSD on CPU support - ROG CROSSHAIR VIII DARK HERO 1-9 Chapter 1 Hyper M.2 X16 series card configuration PCIe bifurcation settings in...
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.... • The slots are set , refer to [AHCI] by default. If you installed SATA storage devices, you can download the RAID Configuration Guide from the ASUS website. 1-14 Chapter 1: Product Introduction If you to connect SATA devices such as optical disc drives and hard disk drives via a SATA cable. SATA 6Gb.../s ports The SATA 6Gb/s ports allows you intend to create a SATA RAID set using these connectors, set the SATA Mode item in the BIOS to [RAID]. • Before creating a RAID set to the RAID Configuration Guide.
.... • The slots are set , refer to [AHCI] by default. If you installed SATA storage devices, you can download the RAID Configuration Guide from the ASUS website. 1-14 Chapter 1: Product Introduction If you to connect SATA devices such as optical disc drives and hard disk drives via a SATA cable. SATA 6Gb.../s ports The SATA 6Gb/s ports allows you intend to create a SATA RAID set using these connectors, set the SATA Mode item in the BIOS to [RAID]. • Before creating a RAID set to the RAID Configuration Guide.
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Slow Mode switch The system may crash due to reboot into the BIOS safe mode. 21. Enable the Slow Mode switch during LN2 benching to decrease the processor frequency and stabilize the system, allowing you to keep track ... data. Chapter 1 20. Safe Boot button The Safe Boot button temporarily applies safe settings to the BIOS while retaining the overclocked settings, allowing you to modify the settings causing a boot failure. Press this button at anytime to force the system to the CPU being unstable when using extreme overclocking settings. ROG CROSSHAIR VIII DARK HERO 1-23
Slow Mode switch The system may crash due to reboot into the BIOS safe mode. 21. Enable the Slow Mode switch during LN2 benching to decrease the processor frequency and stabilize the system, allowing you to keep track ... data. Chapter 1 20. Safe Boot button The Safe Boot button temporarily applies safe settings to the BIOS while retaining the overclocked settings, allowing you to modify the settings causing a boot failure. Press this button at anytime to force the system to the CPU being unstable when using extreme overclocking settings. ROG CROSSHAIR VIII DARK HERO 1-23
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... install the CPU to your local ASUS Service Center. 2-14 Chapter 2: Basic Installation Simply insert a USB storage device to the USB port (the USB port hole marked on using the BIOS FlashBack™ feature, please refer to boot up, please contact your ROG CROSSHAIR VIII DARK HERO motherboard to automatically update the BIOS. Please refer to the illustration...
... install the CPU to your local ASUS Service Center. 2-14 Chapter 2: Basic Installation Simply insert a USB storage device to the USB port (the USB port hole marked on using the BIOS FlashBack™ feature, please refer to boot up, please contact your ROG CROSSHAIR VIII DARK HERO motherboard to automatically update the BIOS. Please refer to the illustration...
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...and 4 10. Optical S/PDIF OUT port 14. USB 3.2 Gen 1 ports E3 and E4 4. We strongly recommend that you connect your devices. ROG CROSSHAIR VIII DARK HERO 2-15 USB 3.2 Gen 1 ports E1 and E2 3. BIOS FlashBack™ button 7. USB 3.2 Gen 2 Type-A ports 6 and 7 11. USB 3.2 Gen 2 Type-C® port C9 13. USB...Realtek RTL8125-CG 2.5Gb Ethernet port* 5. Wi-Fi 6 (802.11 a/b/g/n/ac/ax), Bluetooth V5.1 8. Press this button to clear the BIOS setup information only when the system hangs due to the tables on the next page for your devices to ports with matching data transfer rate...
...and 4 10. Optical S/PDIF OUT port 14. USB 3.2 Gen 1 ports E3 and E4 4. We strongly recommend that you connect your devices. ROG CROSSHAIR VIII DARK HERO 2-15 USB 3.2 Gen 1 ports E1 and E2 3. BIOS FlashBack™ button 7. USB 3.2 Gen 2 Type-A ports 6 and 7 11. USB 3.2 Gen 2 Type-C® port C9 13. USB...Realtek RTL8125-CG 2.5Gb Ethernet port* 5. Wi-Fi 6 (802.11 a/b/g/n/ac/ax), Bluetooth V5.1 8. Press this button to clear the BIOS setup information only when the system hangs due to the tables on the next page for your devices to ports with matching data transfer rate...
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...(starting with a surge protector. 5. While the tests are off mode regardless of the system chassis. 4. ROG CROSSHAIR VIII DARK HERO 2-19 If your retailer for more than four seconds to the BIOS beep codes table) or additional messages appear on sleep mode or soft-off the computer While the system is...failed a power-on , hold down the key to disabled No keyboard detected No memory detected No VGA detected Hardware component failure 7. BIOS Beep One short beep One continuous beep followed by two short beeps then a pause (repeated) One continuous beep followed by three short ...
...(starting with a surge protector. 5. While the tests are off mode regardless of the system chassis. 4. ROG CROSSHAIR VIII DARK HERO 2-19 If your retailer for more than four seconds to the BIOS beep codes table) or additional messages appear on sleep mode or soft-off the computer While the system is...failed a power-on , hold down the key to disabled No keyboard detected No memory detected No VGA detected Hardware component failure 7. BIOS Beep One short beep One continuous beep followed by two short beeps then a pause (repeated) One continuous beep followed by three short ...
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...3 ROG CROSSHAIR VIII DARK HERO 3-1 DO NOT change the BIOS settings only with the help of a trained service personnel. • When downloading or updating the BIOS file, rename it as C8DH.CAP for this user manual refers to "UEFI BIOS" unless otherwise specified. Chapter 3: BIOS and RAID Support BIOS and... as your operating system. The term "BIOS" in this motherboard. • BIOS settings and options may result to www.asus.com/ support. 3.1 Knowing BIOS The new ASUS UEFI BIOS is a Unified Extensible Interface that you to run the BIOS Setup. • You have installed a...
...3 ROG CROSSHAIR VIII DARK HERO 3-1 DO NOT change the BIOS settings only with the help of a trained service personnel. • When downloading or updating the BIOS file, rename it as C8DH.CAP for this user manual refers to "UEFI BIOS" unless otherwise specified. Chapter 3: BIOS and RAID Support BIOS and... as your operating system. The term "BIOS" in this motherboard. • BIOS settings and options may result to www.asus.com/ support. 3.1 Knowing BIOS The new ASUS UEFI BIOS is a Unified Extensible Interface that you to run the BIOS Setup. • You have installed a...
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...drive that allows you in using the first two options. If you do not press or , POST continues with the motherboard package. BIOS menu screen The BIOS Setup program can change modes from Setup Mode in Windows® environment. • EZ Update requires an Internet connection either of ...the three options, press key to enter BIOS. • Ensure that a USB mouse is a utility that comes with its parameters. 3.2 BIOS setup program Use the BIOS Setup to turn the system off then back on the system chassis. • Press the ...
...drive that allows you in using the first two options. If you do not press or , POST continues with the motherboard package. BIOS menu screen The BIOS Setup program can change modes from Setup Mode in Windows® environment. • EZ Update requires an Internet connection either of ...the three options, press key to enter BIOS. • Ensure that a USB mouse is a utility that comes with its parameters. 3.2 BIOS setup program Use the BIOS Setup to turn the system off then back on the system chassis. • Press the ...
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... while updating the BIOS to the Folder field. 6. Chapter 3 ROG CROSSHAIR VIII DARK HERO 3-3 Reboot the system when the update process is done. Enter the Advanced Mode of the BIOS setup program. Ensure to load the BIOS default settings to the Drive field. 4. Press to switch to ensure system compatibility and stability. 3.4 ASUS EZ Flash 3 The ASUS EZ Flash 3 feature...
... while updating the BIOS to the Folder field. 6. Chapter 3 ROG CROSSHAIR VIII DARK HERO 3-3 Reboot the system when the update process is done. Enter the Advanced Mode of the BIOS setup program. Ensure to load the BIOS default settings to the Drive field. 4. Press to switch to ensure system compatibility and stability. 3.4 ASUS EZ Flash 3 The ASUS EZ Flash 3 feature...
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... flash drive containing the BIOS file to the USB port. 3. The utility automatically checks the devices for the BIOS file. If you to enter BIOS Setup to recover the BIOS setting. 3.5 ASUS CrashFree BIOS 3 The ASUS CrashFree BIOS 3 utility is an ...auto recovery tool that you press to load default BIOS values. Recovering the BIOS To recover the BIOS: 1. When found, the utility reads the BIOS file and enters ASUS EZ Flash 3 automatically. 4. The BIOS...
... flash drive containing the BIOS file to the USB port. 3. The utility automatically checks the devices for the BIOS file. If you to enter BIOS Setup to recover the BIOS setting. 3.5 ASUS CrashFree BIOS 3 The ASUS CrashFree BIOS 3 utility is an ...auto recovery tool that you press to load default BIOS values. Recovering the BIOS To recover the BIOS: 1. When found, the utility reads the BIOS file and enters ASUS EZ Flash 3 automatically. 4. The BIOS...