This article covers ASRock マザーボード Z790 Taichi Intel 第12世代 ・ 13世代 CPU （ LGA1700 ）対応 Z790チップセット DDR5 E-ATX マザーボード 【国内正規代理店品】.

Overview

The ASRock Z790 Taichi is a flagship E-ATX motherboard built for Intel's 12th and 13th Gen Core processors (LGA1700). It combines a powerful 24+1+2 power phase design with 105A SPS (Smart Power Stage) to deliver stable voltage even under heavy overclocking. With support for DDR5 memory up to 7200MHz+ (OC), dual Thunderbolt 4 ports, PCIe 5.0 for both graphics and M.2 SSDs, and integrated Wi-Fi 6E, this board is designed to handle the most demanding enthusiast builds. Its aesthetic features a distinctive gear-inspired heatsink design with addressable RGB lighting. The board also includes a 2.5Gb LAN port, eight SATA3 ports, and a comprehensive set of rear I/O including HDMI, multiple USB-A, and two Thunderbolt 4 Type-C ports. The Z790 Taichi sits firmly in the high-end segment, competing directly with ASUS ROG MAXIMUS and MSI MEG series boards.

Compatibility Guide

Socket: LGA1700 — compatible with Intel Core i9/i7/i5/i3 12th (Alder Lake) and 13th Gen (Raptor Lake) CPUs. Memory: 4x DDR5 DIMM slots, dual-channel, non-ECC, max 192GB, OC speeds up to 7200MHz+ (1DPC 1R). Always check the memory QVL for stability at high clocks. Form factor: E-ATX (305mm × 267mm). Most mid-tower cases do not support E-ATX; you'll need a full-tower or a wide mid-tower with proper standoff positions. Verify case dimensions before purchase. Storage: 1x Blazing M.2 (PCIe 5.0 x4), 4x Hyper M.2 (PCIe 4.0 x4), 8x SATA3 ports. This allows massive NVMe RAID arrays alongside traditional drives. Power: 24-pin ATX + 8-pin + 4-pin CPU power; we recommend at least an 850W PSU for high-end configurations.

Product Info

Released in October 2022, the ASRock Z790 Taichi carries a street price of around ¥72,000 in Japan as of mid-2026. Warranty is 3 years via ASRock's official domestic distributor. Market positioning: high-end enthusiast. The key differentiating features are the dual Thunderbolt 4 ports, 105A SPS VRM, and PCIe 5.0 M.2 support — all at a more accessible price point than some competing flagships. It's built for users who want the best without stepping into overpriced "Apex" or "Extreme" tier boards.

Best Use Cases

  1. High-End Gaming Rigs Paired with an Intel Core i9-13900K and an RTX 4090, this board can handle any game at 4K with high frame rates. The robust VRM keeps the CPU fed even under sustained loads. PCIe 5.0 readiness ensures future GPU upgrades won't be bottlenecked. 2. Creative Workstations Video editors and 3D artists benefit from Thunderbolt 4 connectivity for fast external SSDs and docks. The ability to run up to 192GB of DDR5 memory is crucial for large scenes and multi-tasking. 3. Enthusiast Custom Builds If you enjoy building aesthetically pleasing PCs with custom water loops and extensive RGB, the Z790 Taichi offers excellent expandability (three PCIe x16 slots, plenty of fan headers, and a clean layout).

Things to Consider

Size is the primary concern — E-ATX requires a spacious case. Double-check GPU clearance and radiator fitment. Also, being a flagship board, it may be overkill for a Core i5 or budget build; consider a B760 or lower Z790 model instead. The dual Thunderbolt 4 ports are a major plus, but they share bandwidth with other PCIe lanes — check the manual if you plan to fill all M.2 slots. Also, the board lacks a POST code display (though it has Dr. Debug LEDs). Compared to the ASUS ROG MAXIMUS Z790 HERO, the ASRock offers more Thunderbolt ports but fewer USB 3.2 Gen2x2 ports. BIOS features and software ecosystem differ; enthusiasts should decide based on personal preference. ## FAQ
Q: Can I use a Core i5-13600K with this board? A: Yes, it works perfectly. However, the i5 may not leverage the full VRM capability, so you might be paying for unused headroom. A B760 board could be a more cost-effective choice. Q: Is DDR4 memory supported? A: No, this board is DDR5-only. DDR4 sticks will not physically fit. Q: Does the Thunderbolt 4 support charging? A: Yes, the rear Thunderbolt 4 ports support Power Delivery up to 15W (5V/3A) per port. For higher power charging, use the front USB 3.2 Gen2x2 Type-C header (supports 60W with PD 3.0).

Product Disclosure (Amazon)

  • Manufacturer: ASRock
  • ASIN: B0BKGRF6B6
  • Note: This article covers a manufacturer-made product based on Amazon listing details.