Asus Prime Z390-A w/ DDR4 2666, 7.1 Audio, Gigabit LAN, CrossFireX / SLI

MX74035 Prime Z390-A w/ DDR4 2666, 7.1 Audio, Gigabit LAN, CrossFireX / SLI
MX74035 Prime Z390-A w/ DDR4 2666, 7.1 Audio, Gigabit LAN, CrossFireX / SLI

Product Info

ASUS Introduces the PRIME Z390-A Motherboard


This PRIME Z390-A Motherboard is designed for 9th generation Intel® Core™ processors, the Prime Z390-A delivers maximum performance with customizable style. 5-Way Optimization provides AI overclocking and dynamic fan calibration while dual M.2 and USB 3.1 Gen2 delivers maximum transfer speeds. Aura Sync RGB with addressable headers customize your build.

  • Designed for 9th and 8th generation Intel® Core™ processors to maximize connectivity and speed with M.2, USB 3.1 Gen2 and ASUS OptiMem II for better DRAM overclocking stability
  • Revamped 5-Way Optimization that has the intelligence to overclock a CPU based on smart prediction and thermal telemetry
  • 5X Protection III Hardware-level safeguards with SafeSlot Core, LANGuard and Overvoltage Protection provide component longevity and reliability while FanXpert 4 with AIO Pump Header delivers advanced fan control for dynamic system cooling
  • Patent-pending SafeSlot Core fortified PCIe slots prevent damage caused by heavyweight GPUs
  • 8-channel HD Gaming Audio featuring Realtek ALC887 high definition audio codec


Overclocking Intelligence

The overclocking module of AI Suite's 5-Way Optimization has been revamped for the Z390 platform. With a revised back-end that has the intelligence to overclock a CPU based upon smart prediction and thermal telemetry, this new version quickly delivers overclocking results that would typically take days of manual timing.

TPU Insight: Unleash your PC's full performance with the ASUS AI Suite 3 utility. The TurboV Processing Unit (TPU) is the intelligence behind our automated system-tuning utility, offering the ability to fine-tune voltages, monitor system stats, and adjust overclock parameters for optimal performance.

OptiMem II

To provide Intel's latest processors' unfettered access to memory bandwidth, we've reimaged motherboard trace routing from the ground up. Our OptiMem II tech carefully maps memory signal pathways across different PCB layers to reduce vias and also adds shielding zones that significantly reduce crosstalk. And to further enhance overclocking headroom for fully stacked memory configurations, we've employed a highly customized T-Topology layout that delivers time-aligned signaling.

ProCool Power connector

Compared with traditional power inputs, ProCool sockets are built to tight specifications to ensure flush contact with the PUS power lines. This lowers impedance, which helps to prevent hotspots and connector failure.


The Prime Z390-A's CPU VRM utilizes DR. MOS power stages that combine high-side and low-side MOSFETs and drivers into a single package, delivering the power and efficiency that Intel's latest processors demand.


Supports select Intel® Core™ Processors:

  • Supports select Intel® Core™ 8th and 9th i3 / i5 / i7 Series Processors

System Requirements

  • Windows® 10 64-bit


Make and Model ASUS PRIME Z390-A ATX Motherboard
CPU Support Supports select 8th and 9th Gen Intel® Core™ processors.
Intel® Socket 1151 for Intel® Core™ 9000 series, 8th Generation Core™ i7/ i5/ i3, Pentium® and Celeron® processors

Supports 14nm CPU

Chipset Intel® Z390 Chipset
Memory 4x DIMM DDR4 4133+(O.C.)/ 4000(O.C.)/ 3866(O.C.)/ 3733(O.C.)/ 3600(O.C.)/ 3466(O.C.)/ 3400(O.C.)/ 3333(O.C.)/ 3300(O.C.)/ 3200(O.C.)/ 3000(O.C.)/ 2800(O.C.)/ 2666/ 2400/ 2133 MHz, Non-ECC, Un-buffered Memory, 64GB Max.

Dual Channel Memory Architecture Design
Supports Intel® Extreme Memory Profile (XMP)

Integrated Graphics Integrated Graphics Processor- Intel® UHD Graphics Multi-VGA output support:
HDMI 1.4, DisplayPort

- Supports HDMI 1.4b with max. resolution 4096 x 2160 @ 30Hz
- Supports DisplayPort 1.2 with max. resolution 4096 x 2304 @ 60 Hz

Multi-GPU Support Supports NVIDIA® 2-Way/Quad-GPU SLI™ Technology
Supports AMD® 3-Way/Quad-GPU CrossFireX™ Technology

Intel® CPU with RAID 0 and 1:
- PCIe x16_1 slot supports up to 3 Intel® PCIe NVME SSDs via a Hyper M.2 X16 series Card.*
- PCIe x16_2 slot supports up to 2 Intel® PCIe NVME SSDs via a Hyper M.2 X16 series Card.*

Intel® Z390 Chipset with RAID 0, 1, 5, 10, and Intel® Rapid Storage Technology support:
- 1 x M.2_1 Socket 3 with M Key, type 2242/2260/2280/22110 storage devices support (PCIE x4 mode)
- 1 x M.2_2 Socket 3 with M Key, type 2242/2260/2280/2280 storage devices support (both SATA & PCIE mode)**
- 6 x SATA 6Gb/s ports

Intel® Optane™ Memory Ready
(* Hyper M.2 X16 series card sold separately. Install a Hyper M.2 X16 series card and enable this card under BIOS settings)
( ** The M.2_1 socket shares bandwidth with SATA_1 port when using M.2 SATA devices. Adjust BIOS settings to use a SATA device)

Expansion Slots

Intel® Socket 1151 for Intel® Core™ 9000 series, 8th Generation Core™ i7/ i5/ i3, Pentium® and Celeron® processors:
2 x PCIe 3.0/2.0 x16 slots (supports x16, x8/x8, x8/x4+x4, x8+x4+x4/x0)

Intel® Z390 Chipset:
1 x PCIe 3.0 x16 slot (max. at x4 mode)
3 x PCI Express 3.0/2.0 x1 slots

USB Ports Intel® Z390 Chipset:
- 1 x USB 3.1 Gen 1 front panel Type-C™ connector
- 4 x USB 3.1 Gen 2 ports (3 Type-A[teal blue], 1 Type-C™ at back panel)
- 4 x USB 3.1 Gen 1 ports (2 ports at back panel[blue], 2 ports at mid-board)
- 6 x USB 2.0 ports (2 ports at back panel[black], 4 ports at mid-board)
LAN 1 x Intel® I219-V Gigabit LAN
Anti-surge LANGuard
Turbo LAN Utility
Wi-Fi N/A
Bluetooth N/A

Realtek® S1220A 8-Channel High Definition Audio CODEC featuring Crystal Sound 3
- Impedance sense for front and rear headphone outputs
- High quality 120dB SNR stereo playback output and 113dB SNR recording input
- Internal audio Amplifier to enhance the highest quality sound for headphone and speakers
- Power pre-regulator reduces power input noise to ensure consistent performance
- Unique de-pop circuit to reduce start-up popping noise to audio outputs
- Separate layer for left and right track, ensuring both sound deliver equal quality
- Audio shielding ensures precise analog/digital separation and greatly reduced multi-lateral interference
- Premium Japan-made audio capacitors
- Supports up to 32-Bit/192kHz playback*
- Supports jack-detection, multi-streaming, front panel jack-retasking (MIC)
- Optical S/PDIF out port at back I/O

Audio Features:
- DTS® Headphone:X™ and DTS® Connect

(* Due to limitations in HDA bandwidth, 32-Bit/192kHz is not supported for 8-Channel audio. 32-Bit/192kHz is only available under Windows® 10.)

Back Panel I/O 1 x PS/2 keyboard/mouse combo port
1 x HDMI port
1 x DisplayPort port
2 x USB 2.0 ports
2 x USB 3.1 Gen1 ports [blue]
4 x USB3.1 Gen2 ports (3 x Type-A [teal blue] and 1 x Type-C™ ports)
1 x LAN (RJ45) port
5 x Audio jacks
1 x Optical S/PDIF out
Internal I/O 1 x USB 3.1 Gen 1 front panel Type-C™ connector
1 x USB 3.1 Gen 1 header supports additional 2 USB 3.1 Gen 1 ports(19-pin)
3 x USB 2.0 header supports additional 6 USB 2.0 ports
6 x SATA 6Gb/s ports
1 x M.2 Socket 3 with M Key, type 2242/2260/2280 storage devices support (both SATA & PCIe 3.0 x 4 modes)
1 x M.2 Socket 3 with M Key, type 2242/2260/2280/22110 storage devices support (PCIe 3.0 x 4 mode)
1 x 4-Pin CPU FAN connector
1 x 4-Pin CPU_OPT fan connector
2 x 4-Pin Chassis fan connectors
1 x M.2 FAN connector
1 x 4-Pin AIO_PUMP connector
1 x 4-Pin W_PUMP+ connector
1 x EXT_FAN header
1 x Thermal sensor connector
1 x 24-pin EATX power connector
1 x 8-pin EATX 12V power connector
2 x Aura RGB headers
1 x MemOK! II switch
1 x Node connector
1 x Power-on button
1 x Thunderbolt header (5-pin) for ASUS ThunderboltEX series support
1 x Clear CMOS jumper (2-pin)
1 x COM port
1 x TPM header
1 x CPU OV header
1 x Front panel audio connector (AAFP)
1 x System Panel(Q-Connector)
Special Features

- Aura Lighting Control
- Aura RGB Strip Headers

ASUS 5-Way Optimization by Dual Intelligent Processors 5:
- 5-Way Optimization tuning key perfectly consolidates TPU Insight, EPU Guidance, DIGI+ VRM, Fan Expert 4, and Turbo App
- DIGI+ VRM: Digital 8+1phase power design with Dr. MOS
- Fan Xpert 4: Fan Auto Tuning function and multiple thermistors selection for optimized system cooling control
- TPU Insight
- EPU Guidance
- Turbo App: system performance tuning, network priority, and audio scene configuration for selected applications
- Procool Power connector design

- CrashFree BIOS 3
- EZ Flash 3
- EZ Tuning Wizard

ASUS Exclusive Features:
- MemOK! II
- ASUS NODE: hardware control interface
- 3D Printing Friendly design
- Turbo LAN
- ASUS Ai Charger
- ASUS AI Suite 3

ASUS 5X Protection III:
- ASUS SafeSlot Core: Fortified PCIe with solid soldering
- ASUS LANGuard: Protects against LAN surges, lightning strikes and static-electricity discharges!
- ASUS Overvoltage Protection: World-class circuit-protecting power design
- ASUS Stainless-Steel Back I/O: 3X corrosion-resistance for greater durability!
- DIGI+ VRM: Digital 8+1phase power design with Dr. MOS

- ASUS Q-Shield
- ASUS Q-LED (CPU, DRAM, VGA, Boot Device LED)
- ASUS Q-Slot
- ASUS Q-Connector

ASUS Quiet Thermal Solution - ASUS ASUS Fan Xpert 4
- Stylish Fanless Design: MOS Heat-sink with dual thermal pads design, PCH and M.2 Heatsink
BIOS 128 Mb Flash ROM, UEFI AMI BIOS, PnP, SM BIOS 3.1, ACPI 6.1, Multi-language BIOS, ASUS EZ Flash 3, CrashFree BIOS 3, F11 EZ Tuning Wizard, F6 Qfan Control, F3 My Favorites, Last Modified log, F9 Search, F12 PrintScreen, and ASUS DRAM SPD (Serial Presence Detect) memory information
Manageability WfM 2.0, DMI 3.0, WOL by PME, PXE
Operating System Requires Windows® 10 64-bit
Form Factor ATX Form Factor
Dimensions 12" x 9.6" (30.5 x 24.4 cm)
Weight N/A