Does the ASUS ROG Maximus Z790 Hero support 14th Gen Intel Core processors out of the box?

Depending on the manufacturing batch and BIOS version shipped, you may need to update the BIOS using the **BIOS FlashBack** button before booting with a 14th Gen processor, though most units sold now come pre-updated.

How many M.2 NVMe SSDs can I install simultaneously?

You can install up to **three M.2 SSDs** directly on the motherboard, and **two additional M.2 SSDs** using the included bundled **ROG Hyper M.2 Card**, bringing the total to five.

Does this motherboard support PCIe 5.0 graphics cards?

Yes, the primary and secondary PCIe x16 slots are **PCIe 5.0 ready**, ensuring full bandwidth compatibility for next-generation graphics cards.

What is included with the ROG Hyper M.2 Card?

The ROG Hyper M.2 Card is a PCIe expansion card that allows you to install up to two extra PCIe 4.0 NVMe SSDs with dedicated heatsinks.

Can I update the BIOS without a CPU installed?

Yes, the board features **ASUS BIOS FlashBack**, allowing you to flash a new BIOS file directly from a USB flash drive without needing a CPU or RAM installed.

Is the integrated audio high enough quality to drive high-impedance headphones?

Yes, the board features an integrated **ESS ES9218Q Quad DAC** paired with the SupremeFX codec, capable of driving audiophile-grade headphones cleanly.

What kind of RGB software does it use?

The motherboard utilizes **ASUS Armoury Crate** and **Aura Sync** to manage onboard Polymo Lighting and synchronize RGB effects across compatible ecosystem components.

ASUS ROG Maximus Z790 Hero

Command the Apex of Performance with Elite Power Delivery and Polished Aesthetics

Overview

The ASUS ROG Maximus Z790 Hero stands as a formidable centerpiece for enthusiast builds, bridging the gap between extreme overclocking capability and daily reliability. Built around the LGA 1700 socket and the Intel Z790 chipset, this motherboard harnesses robust 20+1 power stages rated at 90A to tame even the most power-hungry 13th and 14th Gen Intel Core processors. Featuring signature Polymo Lighting, comprehensive thermal armor, and support for high-frequency DDR5 memory, it delivers an uncompromising blend of raw processing headroom and stunning visual presence.

How It Works

The ROG Maximus Z790 Hero orchestrates high-end PC hardware through advanced power regulation, high-speed routing, and intelligent firmware optimization.

Power Regulation

Incoming 12V power from the EPS connectors is routed through a high-current 20+1 power stage topology managed by digital PWM controllers to ensure ultra-stable Vcore delivery.

Signal Integrity & Memory

Traces optimized via OptiMem II routing minimize cross-talk and signal degradation, allowing DDR5 memory kits to operate reliably at extreme overclocked frequencies.

Thermal Dissipation

Massive integrated VRM heatsinks connected by an L-shaped heatpipe absorb and dissipate thermal loads away from critical power components under heavy multi-core workloads.

I/O and Expansion Routing

PCIe lanes split dynamically between PCIe 5.0 graphics slots and multiple M.2 slots using high-speed multiplexers to ensure zero bottlenecking for modern GPUs and NVMe drives.

Key Features

Robust 20+1 Power Stages

Equipped with 20+1 power stages rated at 90A per stage to deliver clean, consistent power for intense CPU overclocking.

DDR5 Memory Support

Unlocks incredible memory frequencies and bandwidth enhancements utilizing ASUS OptiMem II trace layout design.

ROG Hyper M.2 Card Included

Expands storage potential by providing an extra bundled PCIe card supporting two additional PCIe 4.0 M.2 SSDs.

PCIe 5.0 Ready

Features dual PCIe 5.0 x16 SafeSlots designed to accommodate the heaviest next-generation graphics cards without sagging.

Polymo Lighting RGB

An eye-catching microcode RGB display on the I/O shroud offering layered microstructural lighting effects.

Wi-Fi 6E and 2.5G Ethernet

Delivers ultra-fast wireless connectivity via Intel Wi-Fi 6E (802.11ax) alongside a high-speed Intel 2.5 Gb Ethernet port.

SupremeFX 7.1 Audio

High-fidelity audio utilizing an ESS ES9218Q Quad DAC for pristine headphone output and immersive spatial sound.

Thunderbolt 4 USB Type-C

Dual onboard Thunderbolt 4 ports supporting up to 40Gbps bidirectional data transfers and daisy-chaining displays.

Power Delivery and Thermal Design

Engineered for Extreme Overclocking Stability

20+1 Power Stage Architecture

Combines high-side and low-side MOSFETs and drivers into a single package, handling up to 90A per stage.

ProCool II Power Connectors

Solid pin connectors ensure flush contact with PSU power cables, reducing impedance and lowering hot spots.

MicroFine Alloy Chokes

High-permeability alloy chokes reduce core losses and overall electromagnetic interference for cleaner power.

Integrated VRM Heatsinks

Massive aluminum blocks bound to the power stages via high-conductivity thermal pads with an embedded heatpipe.

Memory and Overclocking Subsystem

Pushing DDR5 Speeds to the Absolute Limit

OptiMem II Trace Layout

Carefully isolated memory signal paths across PCB layers significantly reduce crosstalk and improve signal integrity.

AEMP II Profiles

ASUS Enhanced Memory Profile II allows users to easily optimize generic or high-end kits beyond standard JEDEC specifications.

Dual-Channel Architecture

Optimized memory topology supports robust overclocking headroom across all four DIMM slots.

Overclocking Protection

Built-in hardware safeguards monitor overcurrent and overvoltage events during aggressive tuning sessions.

Connectivity and Expansion

Next-Generation Input/Output and Storage Ecosystem

PCIe 5.0 x16 Slots

Two primary expansion slots ready for upcoming graphics cards and ultra-fast storage expansion cards.

Onboard M.2 Storage Slots

Features three onboard M.2 slots covered by thick heatsinks, plus two extra via the bundled ROG Hyper M.2 Card.

Dual Thunderbolt 4 Ports

Rear I/O features dual Type-C Thunderbolt 4 ports capable of driving 4K displays and ultra-fast external storage arrays.

Intel 2.5G LAN & Wi-Fi 6E

Provides high-throughput wired networking alongside low-latency wireless connectivity on the 6GHz band.

✓ Pros

✓Phenomenal 20+1 power delivery system capable of handling extreme CPU overclocks
✓Stunning aesthetic design featuring customizable Polymo Lighting RGB
✓Abundant storage options including five total M.2 slots via the bundled ROG Hyper card
✓Dual onboard Thunderbolt 4 ports for high-speed peripheral expansion
✓Excellent integrated audio powered by an ESS ES9218Q Quad DAC
✓Robust thermal armor and massive heatsinks keeping VRMs exceptionally cool
✓User-friendly DIY features like PCIe Slot Q-Release and M.2 Q-Latch

✗ Cons

✗Extremely premium price point targeting only high-end enthusiasts
✗Lacks the specialized features of top-tier extreme boards like the Apex or Maximus Extreme
✗Bulky heatsinks and armor can cause clearance issues with certain oversized CPU coolers
✗DDR5 memory compatibility and stability can still vary depending on the kit density

Use Cases

High-end gaming rigs paired with flagship GPUs like the RTX 4090Content creation workstations handling heavy 4K/8K video editing and renderingEnthusiast overclocking setups aiming for maximum benchmark scoresFuture-proofed productivity builds requiring fast Thunderbolt 4 and Wi-Fi 6EShowcase PC builds centered around clean black aesthetics and addressable RGB lighting

Technical Specifications

CPU Socket

LGA 1700

Chipset

Intel Z790

Form Factor

ATX (12 inch x 9.6 inch)

VRM Power Design

20+1 Power Stages (90A per stage)

Memory Support

4 x DIMM, Max. 192GB, DDR5 7800+(OC)

Expansion Slots

2 x PCIe 5.0 x16 (supports x16 or x8/x8), 1 x PCIe 4.0 x4

Storage

3 x M.2 slots (onboard) + 2 x M.2 slots (via ROG Hyper M.2 Card), 4 x SATA 6Gb/s

Networking

Intel 2.5Gb Ethernet, Intel Wi-Fi 6E (802.11ax)

USB Ports

2 x Thunderbolt 4 (Type-C), 11 x USB 3.2 Gen 2, various internal headers

Audio

ROG SupremeFX 7.1 Surround Sound High Definition Audio Codec ALC4082 + ESS ES9218Q Quad DAC

BIOS

256 Mb Flash ROM, UEFI AMI BIOS, ASUS AI Overclocking

OS Support

Windows 11 64-bit, Windows 10 64-bit

Z790 Enthusiast Motherboard Showdown

Feature	rogMaximusZ790Hero	mpgZ790CarbonWifi	z790AorusMaster
VRM Power Stages	20+1 (90A)	19+1+1 (105A)	20+1+2 (105A)
Memory Max Speed	DDR5 7800+ OC	DDR5 7600+ OC	DDR5 8200+ OC
Thunderbolt 4	Dual Onboard	Header Only	Header Only
M.2 Slots Included	5 (with Hyper card)	5 onboard	5 onboard
Networking	Intel 2.5G + Wi-Fi 6E	Intel 2.5G + Wi-Fi 6E	Marvell 10G + Wi-Fi 6E
Audio Solution	ALC4082 + ESS Quad DAC	ALC4080	ALC1220 + ESS DAC

Setup Tips

Update BIOS via FlashBack First

If using a 14th Gen Intel CPU, use the rear BIOS FlashBack port to update to the latest firmware before installing your processor and memory.

Utilize M.2 Q-Latch Screws

Take advantage of the tool-less M.2 Q-Latch mechanisms on the motherboard to secure your NVMe SSDs quickly and securely without losing tiny screws.

Install Drivers via Armoury Crate Prompt

Upon first booting into Windows, allow the Armoury Crate prompt to pull essential LAN, Wi-Fi, and chipset drivers, then uninstall the utility if you prefer a leaner software footprint.

Enable XMP or AEMP II in BIOS

Enter the UEFI BIOS upon initial boot and enable your memory kit's XMP profile or AEMP II to ensure your RAM runs at its advertised high frequency rather than base JEDEC speeds.

Connect Antennas for Stable Wi-Fi/Bluetooth

Attach the included magnetic Wi-Fi Q-Antenna to the rear I/O connectors even if you plan to use wired internet, as it also improves Bluetooth peripheral signal stability.

Frequently Asked Questions

Key Takeaway

The ASUS ROG Maximus Z790 Hero is an elite enthusiast motherboard built around the LGA 1700 socket and Intel Z790 chipset, offering robust 20+1 power stages, DDR5 memory support, and PCIe 5.0 readiness. Packed with high-end features like dual Thunderbolt 4 ports, Wi-Fi 6E, SupremeFX audio, and an expansive storage layout including a bundled M.2 expansion card, it delivers premium performance and styling for top-tier gaming and workstation builds.