This article covers Gigabyte Z790 D AX 超耐久性インテル 1700 ソケットマザーボード.

Overview

The Gigabyte Z790 D AX is an ATX motherboard built around the Intel Z790 chipset, supporting LGA1700 processors from the 12th, 13th, and 14th generations. It features four DDR5 memory slots, three PCIe 4.0 x4 M.2 slots, and a robust 12+1+1-phase digital VRM design. Connectivity is well-covered with 2.5GbE LAN, Wi-Fi 6E, a 10Gbps USB-C port, and both DisplayPort and HDMI outputs for integrated graphics.
Positioned as a mid-range to upper-mid-range offering, the Z790 D AX delivers the core Z790 feature set without the premium price tag of the AORUS lineup. It's designed for builders who want DDR5 support, ample M.2 storage, and modern networking without overspending on extras like PCIe 5.0 or high-end audio codecs. The Ultra Durable branding promises solid component quality and long-term reliability.
Key highlights include the EZ-Latch quick-release on the primary PCIe x16 slot, Q-Flash Plus for BIOS updates without a CPU installed, and Smart Fan 6 with multiple temperature sensors and hybrid fan headers. This board is a practical choice for a balanced gaming or productivity PC.

Compatibility Guide

  • CPU Socket: LGA1700. Compatible with Intel Core 12th Gen (Alder Lake), 13th Gen (Raptor Lake), and 14th Gen (Raptor Lake Refresh).
  • Memory: 4x DDR5 DIMM slots, dual-channel architecture, XMP 3.0 support. Officially supports up to DDR5-7600+ (overclocked), but real-world stability depends on the memory kit and CPU IMC.
  • Form Factor: Standard ATX (305mm x 244mm). Fits most mid-tower and full-tower cases.
  • Expansion Slots: 1x PCIe 4.0 x16 (primary, with EZ-Latch), 2x PCIe 3.0 x16 (x4 electrical), 1x PCIe 3.0 x1. Multi-GPU setups are possible but the second slot runs at x4.
  • Storage: 3x M.2 slots (all PCIe 4.0 x4, with thermal guards), 4x SATA 6Gbps ports. No PCIe 5.0 M.2 support.
  • Rear I/O: 1x USB-C 10Gbps, 2x USB 3.2 Gen2 Type-A, 4x USB 3.2 Gen1, 2x USB 2.0, 1x DisplayPort 1.2, 1x HDMI 2.0, 1x 2.5GbE RJ-45, Wi-Fi 6E antenna ports, 3x audio jacks.
  • Power: 24-pin main, 8-pin CPU EPS. Recommended PSU wattage: 650W for mid-range GPU builds, 750W+ for high-end GPUs.

Product Info

Released in early 2024, the Gigabyte Z790 D AX is priced around ¥42,240 on Japanese online retailers. The warranty is the standard 3 years for Gigabyte motherboards sold through official channels in Japan.
Market positioning: mid-range to upper-mid-range. It offers the essential Z790 features (DDR5, PCIe 4.0, Wi-Fi 6E, 2.5GbE) at a competitive price, but omits PCIe 5.0 support and premium audio. It's a strong value proposition for users who don't need the absolute latest standards.

Best Use Cases

  • Mid-Range Gaming PC: Pair with a Core i5-14600K or i7-14700K, 32GB DDR5-6000, and an RTX 4070-class GPU for a well-balanced 1440p gaming rig. The 2.5GbE LAN and Wi-Fi 6E ensure low-latency online play.
  • Content Creation Workstation: Three M.2 slots allow for a fast OS drive, a scratch disk, and a project archive. DDR5 bandwidth benefits video editing and 3D rendering. However, if you need PCIe 5.0 SSDs, look elsewhere.
  • Budget-Conscious Enthusiast: If you want a Z790 board without paying for AORUS branding or PCIe 5.0, this is an excellent choice. The VRM is more than adequate for stock and mild overclocks.
  • Office / HTPC Build: Use the integrated GPU output (DP/HDMI) to skip a discrete graphics card entirely. The board's compact ATX size fits most cases.

Things to Consider

  • No PCIe 5.0 Support: The primary PCIe slot is Gen4, and all M.2 slots are Gen4. Future GPUs and SSDs using Gen5 will be bandwidth-limited, though current-gen hardware sees negligible real-world impact.
  • Audio Codec: The Realtek ALC897 is adequate for general use but lacks the fidelity and driving power of higher-end codecs (e.g., ALC1220 or ALC4080). Consider a USB DAC for critical audio work.
  • DDR5 4-DIMM Stability: Running four sticks at high speeds (above 6000MT/s) can be challenging. Check the QVL list and consider 2x16GB or 2x32GB kits for best performance.
  • BIOS Updates: While Q-Flash Plus is convenient, always follow Gigabyte's instructions carefully. Using the wrong file name or USB format can cause issues.
  • Overkill Scenarios: If you only need a basic office PC with no gaming or content creation, a cheaper B760 or H610 board would suffice. This board's features are wasted on light workloads.

FAQ

Q: Can I use a Core i9-14900K with this motherboard?
A: Yes, the 12+1+1-phase VRM can handle the i9-14900K at stock settings. For heavy all-core loads or overclocking, ensure good case airflow to keep VRM temperatures in check. If you plan extreme overclocking, consider a higher-end board with more phases.
Q: Does this motherboard support PCIe 5.0 SSDs?
A: No. All three M.2 slots are PCIe 4.0 x4 only. For PCIe 5.0 SSD support, you need a Z790 board from the AORUS Master tier or higher.
Q: Is Windows 11 installation straightforward?
A: Yes. The board includes firm

Product Disclosure (Amazon)

  • Manufacturer: GIGABYTE
  • Seller: アプロ－ズ
  • Fulfilled by: アプロ－ズ
  • ASIN: B0CTMYNBF4
  • Note: This article covers a manufacturer-made product based on Amazon listing details.