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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.
Safety information Electrical safety • To prevent electrical shock hazard, disconnect the power cable from the electrical outlet before relocating the system. • When adding or removing devices to or from the system, ensure that the power cables for the devices are unplugged before the signal cables are connected. If possible, disconnect all power cables from the existing system before you add a device.
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Button/Coin Batteries Safety Information Remove and immediately recycle or dispose of used batteries according to local regulations and keep out of reach of children. Do not incinerate or dispose of batteries in household trash. If ingested or inserted inside any part of the body, call a local poison control center for treatment information.
Refer to the following sources for additional information and for product and software updates. ASUS website The ASUS website (www.asus.com) provides updated information on ASUS hardware and software products. Optional documentation Your product package may include optional documentation, such as warranty flyers, that may have been added by your dealer.
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RAID Configuration Guide Please visit https://www.asus.com/support for more information on the RAID Configuration Guide. BIOS FlashBack™ Feature Please visit https://www.asus.com/support for more information on the BIOS FlashBack™ Feature. Conventions used in this guide To ensure that you perform certain tasks properly, take note of the following notes used throughout this user guide.
Package contents Check your motherboard package for the following items. Motherboard 1 x B840M MAX GAMING AX motherboard Cables 2 x SATA 6Gb/s cables 1 x ASUS Wi-Fi moving antenna Miscellaneous 2 x Screw packages for M.2 SSD Documentation 1 x Quick start guide NOTE: •...
B840M MAX GAMING AX specifications summary AMD Socket AM5 for AMD Ryzen™ 9000 & 8000 & 7000 Series Desktop Processors* * Refer to https://www.asus.com/support/download-center/ for CPU support list. Chipset AMD B840 Chipset 4 x DIMM slots, max. 192GB, DDR5 Supports up to 7600+MT/s (OC) with Ryzen™ 9000 & 8000 & 7000...
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B840M MAX GAMING AX specifications summary 1 x Realtek 2.5Gb Ethernet Ethernet ASUS LANGuard Wi-Fi 6 1x1 Wi-Fi 6 (802.11ax) Supports 2.4/5GHz frequency band Wireless & Bluetooth ® Bluetooth v5.3* ® * The Bluetooth version may vary, please refer to the Wi-Fi module ®...
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B840M MAX GAMING AX specifications summary 1 x USB 5Gbps connector (supports USB Type-C ® 1 x USB 5Gbps header supports 2 additional USB 5Gbps ports 3 x USB 2.0 headers support 6 additional USB 2.0 ports Miscellaneous 3 x Addressable Gen 2 headers...
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Operating System Windows 11, Windows 10 64-bit micro-ATX Form Factor Form Factor 9.6 inch x 9.6 inch (24.4 cm x 24.4 cm) NOTE: Specifications are subject to change without notice. Please refer to the ASUS website for the latest specifications.
Chapter 1: Product Introduction Product Introduction Before you proceed Take note of the following precautions before you install motherboard components or change any motherboard settings. CAUTION! • Unplug the power cord from the wall socket before touching any component. • Before handling components, use a grounded wrist strap or touch a safely grounded object or a metal object, such as the power supply case, to avoid damaging them due to static electricity.
M.2 X16 series card is installed. • For more details on the PCIe bifurcation, you may visit the support site at https://www.asus.com/support/FAQ/1037507/. • Adjust the PCIe bifurcation under BIOS settings. • Enable the Hyper M.2 X16 series card under BlOS settings.
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NOTE: • When connecting a single CPU fan, you may connect it to either the CPU_FAN or CPU_OPT header. • When connecting two CPU fans, ensure to connect the fans to the CPU_FAN and the CPU_ OPT header, and make sure both fans are the same brand and model. Header Max.
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7. SATA 6Gb/s port The SATA 6Gb/s port allows you to connect SATA devices such as optical disc drives and hard disk drives via a SATA cable. 8. USB 5Gbps Type-C Front Panel connector ® The USB 5Gbps Type-C connector allows you to connect a ®...
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12. Clear CMOS header The Clear CMOS header allows you to clear the Real Time Clock (RTC) RAM in the CMOS, which contains the date, time, system passwords, and system setup parameters. To erase the RTC RAM: Turn OFF the computer and unplug the power cord. Short-circuit pin 1-2 with a metal object or jumper cap for about 5-10 seconds.
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• Storage Device Activity LED header (+HDD_LED-) The 2-pin header allows you to connect the Storage Device Activity LED. The Storage Device Activity LED lights up or blinks when data is read from or written to the storage device or storage device add-on card. •...
1.2.2 Rear I/O connection Rear panel connectors DisplayPort USB 2.0 port 5 with BIOS FlashBack™ feature Realtek 2.5Gb Ethernet port* BIOS FlashBack™ button USB 5Gbps (Type-C ) port C3 ® USB 2.0 ports 1, 2, and 12 USB 10Gbps (Teal blue) Type-A ports 4 and 7 Wi-Fi module Audio jacks** * and **: Refer to the tables under LAN port LEDs, and Audio I/O connections sections.
1.2.3 LAN port LEDs Realtek 2.5Gb Ethernet port LED indications ACT/LINK SPEED Activity Link LED Speed LED Status Description Status Description No link No link 2.5 Gbps connection GREEN Linked GREEN LAN port 1 Gbps / 100 Mbps / BLINKING Data activity ORANGE 10 Mbps connection...
IMPORTANT! Install a heatsink or AIO cooler after installing the CPU. Please refer to the Motherboard Installation Guide on the ASUS support site, or to the user manual of the heatsink/ AIO cooler for steps on installing the heatsink/AIO cooler.
• Always install the DIMMs with the same CAS Latency. For an optimum compatibility, we recommend that you install memory modules of the same version or data code (D/C) from the same vendor. Check with the vendor to get the correct memory modules. • Visit the ASUS website for the latest QVL.
M.2 module installation NOTE: • The illustrations only show the installation steps for selected M.2 slots, the steps are the same for the other M.2 slots. • Use a Phillips screwdriver when removing or installing the screws or screw stands mentioned in this section.
Wi-Fi moving antenna installation Installing the ASUS Wi-Fi moving antenna Connect the bundled ASUS Wi-Fi moving antenna connector to the Wi-Fi ports at the back of the chassis. IMPORTANT! • Ensure that the ASUS Wi-Fi moving antenna is securely installed to the Wi-Fi ports.
USB storage device and filename/file format error. If this scenario happens, please restart the system to turn off the light. • Updating BIOS may have risks. If the BIOS program is damaged during the process and results to the system’s failure to boot up, please contact your local ASUS Service Center.
BIOS and RAID Support NOTE: For more details on BIOS and RAID configurations, please refer to Manual & Document under the Support tab of the product information site, or visit https://www.asus.com/support. Knowing UEFI BIOS BIOS (Basic Input and Output System) stores system hardware settings such as storage device configuration, overclocking settings, advanced power management, and boot device configuration that are needed for system startup in the motherboard CMOS.
ASUS EZ Flash 3 The ASUS EZ Flash 3 feature allows you to update the BIOS without using an OS-based utility. IMPORTANT! Ensure to load the BIOS default settings to ensure system compatibility and stability. Select the Load Optimized Defaults item under the Exit menu or press the <F5> hotkey.
ASUS CrashFree BIOS 3 The ASUS CrashFree BIOS 3 utility is an auto recovery tool that allows you to restore the BIOS file when it fails or gets corrupted during the updating process. You can restore a corrupted BIOS file using a USB flash drive that contains the BIOS file.
RAID configurations The motherboard supports RAID configurations. RAID definitions Volume provides the ability to link-together storage from one or several disks, regardless of the size of the space on those disks. This configuration is useful in scavenging space on disks unused by other disks in the array. This configuration does not provide performance benefits or data redundancy, disk failure will result in data loss.
Appendix General notices FCC Compliance Information Responsible Party: Asus Computer International Address: 48720 Kato Rd., Fremont, CA 94538, USA Phone / Fax No: (510)739-3777 / (510)608-4555 This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
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ASUS follows the green design concept to design and manufacture our products, and makes sure that each stage of the product life cycle of ASUS product is in line with global environmental regulations. In addition, ASUS disclose the relevant information based on regulation requirements.
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ASUS products sold in Vietnam, on or after September 23, 2011,meet the requirements of the Vietnam Circular 30/2011/TT-BCT. Các sản phẩm ASUS bán tại Việt Nam, vào ngày 23 tháng 9 năm2011 trở về sau, đều phải đáp ứng các yêu cầu của Thông tư 30/2011/TT-BCT của Việt Nam.
Notices for Wi-Fi model FCC RF Caution Statement WARNING: Any changes or modifications not expressly approved by the party responsible for compliance could void your authority to operate the equipment. FCC 5.925-7.125 GHz Caution Statement Operation of transmitters in the 5.925-7.125 GHz band is prohibited for control of or communications with unmanned aircraft systems.
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ASUSTek Computer Inc. hereby declares that this device is in compliance with the essential requirements and other relevant provisions of The Radio Equipment Regulations 2017 (S.I. 2017/1206). Full text of UKCA declaration of conformity is available at https://www.asus.com/support/. The WiFi operating in the band 5150-5350MHz shall be restricted to indoor use for the country listed below:...
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2014/53/UE. La déclaration de conformité de l’UE peut être téléchargée à соответствует основным требованиям и другим соответствующим partir du site internet suivant : https://www.asus.com/fr/support/. условиям директивы 2014/53/EU. Полный текст декларации соответствия Dans la plage de fréquences 5150-5350 MHz, le WiFi est restreint à une ЕС...
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ASUSTeK Computer Inc. verklaart hierbij dat dit apparaat voldoet aan de zahtjevima i ostalim odgovarajućim odredbama direktive 2014/53/EU. Cijeli essentiële vereisten en andere relevante bepalingen van Richtlijn 2014/53/ tekst EU izjave o sukladnosti dostupan je na https://www.asus.com/support/. EU. De volledige tekst van de EU-conformiteitsverklaring is beschikbaar op https://www.asus.com/support/.
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2014/53/ES būtiskajām prasībām un citiem citiem saistošajiem nosacījumiem. Οδηγίας 2014/53/ΕE. Το πλήρες κείμενο της δήλωσης συμμόρφωσης της ΕΕ Pilns ES atbilstības paziņojuma teksts pieejams šeit: είναι διαθέσιμο στη διεύθυνση https://www.asus.com/support/. https://www.asus.com/support/. Το WiFi που λειτουργεί στη ζώνη 5150-5350MHz περιορίζεται για χρήση σε...
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Direktive 2014/53/EU. Polno besedilo izjave EU o skladnosti je na voljo na https://www.asus.com/support/. Pentru ţările listate în tabelul de mai jos, reţelele WiFi care funcţionează în banda de frecvenţă de 5.150-5.350 MHz trebuie utilizate doar în interior: WiFi, ki deluje v pasovnem območju 5150–5350 MHz, mora biti v državah,...
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вимогам та ншим в дпов дним вимогам Директиви 2014 / 53 / EU. Повний 2014/53/EU. En https://www.asus.com/support/ está disponible el texto текст декларац ї в дпов дност нормам ЄС доступний на...
ASUS offers a voluntary manufacturer’s Commercial Guarantee. • ASUS tilbyder en valgfri handelsmæssig garanti. • ASUS reserves the right to interpret the provisions of the ASUS • ASUS forbeholder sig retten til at fortolke bestemmelserne i ASUS’ Commercial Guarantee. handelsmæssige garanti.
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Wszelkie informacje na temat gwarancji można znaleźć na stronie https://www.asus.com/ua/support. https://www.asus.com/pl/support. Компан я ASUS не не се в дпов дальност за шкоду, запод яну життю, Informații despre garanția ASUS здоров’ю чи майну користувача або нших ос б внасл док використання...
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ASUS. • Bảo hành thương mại này của ASUS được cung cấp độc lập và ngoài Bảo đảm pháp lý theo luật định và không có cách nào ảnh hưởng đến hoặc giới hạn các quyền theo Bảo lãnh pháp lý. Để biết tất cả các thông tin bảo hành, vui lòng truy cập...
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