Z790 UD AX - Motherboard GIGABYTE - Free user manual and instructions
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| Product Type | Motherboard |
| Brand | Gigabyte |
| Model | Z790 UD AX |
| Form Factor | ATX (305 x 244 mm) |
| Weight | Approximately 1.5 kg |
| Chipset | Intel Z790 |
| CPU Socket | LGA1700 (supports 12th/13th Gen Intel Core) |
| Memory Support | DDR5, up to 128 GB (4 DIMM slots) |
| Expansion Slots | 1 x PCIe 5.0 x16, 1 x PCIe 4.0 x16, 2 x PCIe 3.0 x1 |
| Storage | 3 x M.2 PCIe 4.0, 4 x SATA 6Gb/s |
| Wireless | Wi-Fi 6E (802.11ax), Bluetooth 5.3 |
| Ethernet | Realtek 2.5GbE LAN |
| Audio | Realtek ALC897 7.1-channel HD Audio |
| USB Ports (Rear) | 1 x USB-C 20Gbps, 2 x USB 3.2 Gen2, 4 x USB 3.2 Gen1, 4 x USB 2.0 |
| Power Connectors | 24-pin ATX, 2 x 8-pin CPU (1 required) |
| Main Functions | Supports Intel Core 12th/13th Gen, DDR5 overclocking, PCIe 5.0 GPU, Wi-Fi 6E, RGB Fusion 2.0 |
| Cleaning | Use compressed air to remove dust from heatsinks and fans. Avoid liquid cleaners. |
| Safety | Handle by edges, wear anti-static wrist strap, keep away from moisture and static discharge. |
| Spare Parts and Repairability | CMOS battery (CR2032), I/O shield, M.2 screws. Repairs by qualified technician; refer to manual. |
| General Information | Gigabyte Z790 UD AX is a mid-range motherboard with robust VRM, dual BIOS, and Q-Flash Plus. |
Frequently Asked Questions - Z790 UD AX GIGABYTE
How do I install the CPU and cooler on the Z790 UD AX?
Align the CPU triangle with socket triangle, gently lower the retention arm. Apply thermal paste, then mount the cooler using the LGA1700 mounting kit.
What type of RAM is compatible with this motherboard?
DDR5 RAM modules are supported. For best performance, use a dual-channel kit rated up to 6000 MHz or higher. Check the motherboard's memory QVL for validated modules.
How can I update the BIOS without a CPU?
Use the Q-Flash Plus feature. Download the latest BIOS file to a FAT32 USB drive, rename it to 'gigabyte.bin', insert into the designated USB port, and press the Q-Flash Plus button. The system will update automatically.
The motherboard has no display output. What should I check?
Ensure the monitor is connected to the graphics card (not the motherboard) if using a dedicated GPU. Verify that the GPU is seated properly and power connectors are attached. Clear CMOS if needed.
How many M.2 slots does the Z790 UD AX have?
It has three M.2 slots, all supporting PCIe 4.0 x4. The first slot (M2A_CPU) is directly from the CPU for optimal performance.
Can I use Windows 10 with this motherboard?
Yes, Windows 10 (64-bit) is supported. However, for full compatibility with Wi-Fi 6E and latest features, Windows 11 is recommended.
Why is my Wi-Fi not working?
Install the Wi-Fi driver from Gigabyte's support site. Also ensure the antenna is securely connected to the rear I/O ports. If using Windows, check that the wireless adapter is enabled in Device Manager.
How do I clear the CMOS?
Turn off the system and unplug the power cord. Remove the CMOS battery (CR2032) for 30 seconds, then reinsert. Alternatively, short the two CLR_CMOS pins with a screwdriver.
What is the maximum RAM capacity supported?
Up to 128 GB (four 32 GB DDR5 modules). However, some high-density modules may require a BIOS update.
The motherboard RGB lights are off. How to enable them?
Install RGB Fusion 2.0 software from Gigabyte's website. Connect RGB headers correctly. Ensure the lighting mode is set to static or a pattern in the software.
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USER MANUAL Z790 UD AX GIGABYTE
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Product information
Brand : GIGABYTE
Model : Z790 UD AX
Category : Motherboard