what is the best memory to use?

It's not possible to answer your question as you have laid out no criteria. Are you looking for the most cost-effective solution, the pinnacle of performance, highest capacity, etc.? My suggestion: Go to the ASUS web site and look at the compatible tested memory for this MB, then make you decision based upon the available options and your desired criteria as noted above.

why in the manual it doesn't say it supports intel 11th gen.. intel core i511600K ?

The ASUS PRIME Z590-A motherboard does support 11th Gen Intel Core processors, including the Intel Core i5-11600K. This is mentioned under the 'Supported CPU' section, which states that it supports 11th Gen Intel Core processors.

Does the Z590-A support TPM 2.0 for Windows 11? I don't see a TPM header on the board.

Yes, on ASUS's site on the product's overview page it has a Windows 11 compatible tag.

Does this board support RAID configurations? Do not see it listed in Specs.

Yes it does. I bought one, but returned it when I couldn't find DDR5 at a fair price.

Do all three PCIE x 16 slots work on x16 or x8 mode (lane)?

The actual support for the PCI Express 4.0 x16 slots may vary by CPU.

can i dual monitor on this?

Yes, you can use dual monitors with this motherboard. It has 1 x DisplayPort and 1 x HDMI port available on the rear panel for connecting monitors.

Are there any issues with the Intel Ethernet port on the Z590-A? I heard that the Z490-A had issues with it and wasn't sure if that had been resolved.

It's working fine for me after I install the driver. Need driver because it's too new for Windows to understand.

Does this motherboard have the same ethernet connection problems as its predicessor?

Users have reported several issues with the ASUS Prime Z590-A motherboard, including faulty Ethernet port and LAN connectivity issues during OS installation.

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Main image of ASUS Prime Z590-A LGA 1200 (Intel 11th/10th Gen) ATX Motherboard (14+2 DrMOS Power Stages, 3 x M.2, Intel 2.5Gb LAN, USB 3.2 Front Panel Type-C, Thunderbolt 4 Support, Aura Sync RGB Lighting)

Alt view image 2 of 7 - ASUS Prime Z590-A LGA 1200 (Intel 11th/10th Gen) ATX Motherboard (14+2 DrMOS Power Stages, 3 x M.2, Intel 2.5Gb LAN, USB 3.2 Front Panel Type-C, Thunderbolt 4 Support, Aura Sync RGB Lighting)

Alt view image 3 of 7 - ASUS Prime Z590-A LGA 1200 (Intel 11th/10th Gen) ATX Motherboard (14+2 DrMOS Power Stages, 3 x M.2, Intel 2.5Gb LAN, USB 3.2 Front Panel Type-C, Thunderbolt 4 Support, Aura Sync RGB Lighting)

Alt view image 4 of 7 - ASUS Prime Z590-A LGA 1200 (Intel 11th/10th Gen) ATX Motherboard (14+2 DrMOS Power Stages, 3 x M.2, Intel 2.5Gb LAN, USB 3.2 Front Panel Type-C, Thunderbolt 4 Support, Aura Sync RGB Lighting)

Alt view image 5 of 7 - ASUS Prime Z590-A LGA 1200 (Intel 11th/10th Gen) ATX Motherboard (14+2 DrMOS Power Stages, 3 x M.2, Intel 2.5Gb LAN, USB 3.2 Front Panel Type-C, Thunderbolt 4 Support, Aura Sync RGB Lighting)

Alt view image 6 of 7 - ASUS Prime Z590-A LGA 1200 (Intel 11th/10th Gen) ATX Motherboard (14+2 DrMOS Power Stages, 3 x M.2, Intel 2.5Gb LAN, USB 3.2 Front Panel Type-C, Thunderbolt 4 Support, Aura Sync RGB Lighting)

Alt view image 7 of 7 - ASUS Prime Z590-A LGA 1200 (Intel 11th/10th Gen) ATX Motherboard (14+2 DrMOS Power Stages, 3 x M.2, Intel 2.5Gb LAN, USB 3.2 Front Panel Type-C, Thunderbolt 4 Support, Aura Sync RGB Lighting)

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ASUS Prime Z590-A LGA 1200 (Intel 11th/10th Gen) ATX Motherboard (14+2 DrMOS Power Stages, 3 x M.2, Intel 2.5Gb LAN, USB 3.2 Front Panel Type-C, Thunderbolt 4 Support, Aura Sync RGB Lighting)

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Intel LGA 1200 Socket: Designed to unleash the maximum performance of 11th Gen Intel Core processors
AI Motherboard: AI overclocking, AI cooling and AI noise cancelation
Enhanced Power Solution: 14+2 DrMOS power stages, ProCool sockets, alloy chokes and durable capacitors for stable power delivery in the most demanding situations
Comprehensive Cooling: VRM heatsink, PCH heatsink, hybrid fan headers and Fan Xpert 4 utility
Boosted Memory Performance: Careful routing of traces and vias, plus ground layer optimizations to preserve signal integrity for improved memory overclocking with ASUS OptiMem II
Built for Productivity: front USB 3.2 Gen 1 Type-C and Thunderbolt 4 header, Triple M.2/NVMe SSD
Personalization: ASUS-exclusive Aura Sync RGB lighting, including RGB headers and Gen 2 addressable headers

🔥Don't forget your OS, we have Windows 11 OEM, Download and USB versions available

Overview

Specs

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Model
Brand	ASUS
Model	PRIME Z590-A

Supported CPU
CPU Socket Type	LGA 1200
CPU Type	Supports 11th / 10th Gen Intel Core Processors Supports Intel Pentium Gold / Celeron Processors * Refer to www.asus.com for CPU support list.
Supported CPU Technologies	Supports Intel Turbo Boost Technology 2.0 and Intel Turbo Boost Max Technology 3.0* * Intel Turbo Boost Max Technology 3.0 support depends on the CPU types.

Chipsets
Chipset	Intel Z590

Onboard Video
Onboard Video Chipset	Supported only by CPU with integrated graphic

Memory
Number of Memory Slots	4x288pin (DDR4)
Memory Standard	DDR4 5333(OC) / 5133(OC) / 5000(OC) / 4800(OC) / 4700(OC) / 4600(OC) / 4500(OC) / 4400(OC) / 4266(OC) / 4133(OC) / 4000(OC) / 3866(OC) / 3733(OC) / 3600(OC) / 3466(OC) / 3400(OC) / 3333(OC) / 3200 / 3000 / 2933 / 2800 / 2666 / 2400 / 2133* * 11th Gen Intel Core processors support 3200 / 2933 / 2800 / 2666 / 2400 / 2133 natively. * 10th Gen Intel Core i9 / i7 processors support 2933 / 2800 / 2666 / 2400 / 2133 natively, others will run at the maximum transfer rate of DDR4 2666. * Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists), and memory frequency support depends on the CPU types.
Maximum Memory Supported	128GB
Channel Supported	Dual Channel

Expansion Slots
PCI Express 4.0 x16	3 x PCI Express 4.0 x16* * Actual support may vary by CPU.
PCI Express x4	1 x PCI Express 3.0 x4

Storage Devices
Serial ATA (SATA)	6 x SATA 6Gb/s
M.2	Intel 11th Gen Processors: M.2_1 slot (Key M), type 2242/2260/2280/22110 - Only Intel 11th Core processors support PCIe 4.0 x4 mode, this slot will be disabled for other CPUs Intel Z590 Chipset: M.2_2 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 3.0 x4 & SATA modes)* M.2_3 slot (Key M), type 2242/2260/22110 (supports PCIe 3.0 x4 & SATA modes)** * M.2_2 shares bandwidth with SATA6G_2. When M.2_2 runs SATA mode, SATA6G_2 will be disabled. ** M.2_3 shares bandwidth with SATA6G_6. When M.2_6 runs SATA mode, SATA6G_6 will be disabled.
Intel Optane Ready	To enable Intel Optane Memory (Hybrid Storage device), it must be installed in PCH-attached slots with Intel Rapid Storage Technology.

Onboard Audio
Audio Chipset	Realtek S1220A
Audio Channels	7.1 Channels

Onboard LAN
LAN Chipset	Intel I225-V
Max LAN Speed	2.5Gbps

Rear Panel Ports
Back I/O Ports	1 x USB 3.2 Gen 2x2 port (1 x USB Type-C) 4 x USB 3.2 Gen 2 ports (3 x Type-A, 1 x Type-C) 4 x USB 2.0 ports (4 x Type-A) 1 x DisplayPort 1 x HDMI port 1 x Intel I225-V 2.5Gb Ethernet port 5 x Audio jacks 1 x Optical S/PDIF out port

Internal I/O Connectors
Onboard USB	1 x USB 3.2 Gen 1 connector (supports USB Type-C) 1 x USB 3.2 Gen 1 headers supports additional 2 USB 3.2 Gen 1 ports 2 x USB 2.0 headers support additional 4 USB 2.0 ports
Other Connectors	Fan and Cooling related 1 x 4-pin CPU Fan header 1 x 4-pin CPU OPT Fan header 1 x 4-pin AIO Pump header 3 x 4-pin Chassis Fan headers 1 x 4-pin VRM_HS Fan header 1 x W_PUMP+ header Miscellaneous 3 x AURA Addressable Gen 2 headers 1 x AURA RGB headers 1 x Clear CMOS header 1 x COM Port header 1 x Front Panel Audio header (AAFP) 1 x CPU Over Voltage jumper 1 x Power button 1 x SPI TPM header (14-1-pin) 1 x 20-3-pin System Panel header with Chassis intrude function 1 x Thermal Sensor header 1 x Thunderbolt header

Software Feature
Windows 11	Supported

Physical Spec
Form Factor	ATX
LED Lighting	RGB
Dimensions (W x L)	12.0" x 9.6"
Power Pin	1 x 24-pin Main Power connector 1 x 8-pin +12V Power connector 1 x 4-pin +12V Power connector

Features
Features	Special Features: ASUS 5X PROTECTION III - ASUS DIGI+ VRM (- Digital power design with Dr. MOS) - ASUS Enhanced DRAM Overcurrent Protection - ASUS ESD Guards - ASUS LANGuard - ASUS Overvoltage Protection - ASUS Stainless-Steel Back I/O ASUS Q-Design: - M.2 Q-Latch - ASUS Q-Connector - ASUS Q-DIMM - ASUS Q-LED (CPU [red], DRAM [yellow], VGA [white], Boot Device [yellow-green]) - ASUS Q-Slot ASUS Thermal Solution: - Aluminum M.2 Heatsink - Flexible M.2 heatsink ASUS EZ DIY: - Procool - Pre-mounted I/O shield - ASUS SafeSlot Software Features: ASUS Exclusive Software: Armoury Crate: - Aura Creator - Aura Sync - Two-Way AI Noise Cancelation AI Suite 3 - 5-way Optimization with AI Overclocking TPU EPU Digi+ VRM Fan Xpert 4 Turbo app - EZ update AI Charger ASUS CPU-Z ASUS Turbo LAN MyAsus DTS:X Ultra UEFI BIOS: AI Overclocking Guide ASUS EZ DIY: - ASUS CrashFree BIOS 3 - ASUS EZ Flash 3 - ASUS UEFI BIOS EZ Mode - EZ Tuning Wizard FlexKey BIOS: 256 MB Flash ROM, UEFI AMI BIOS Manageability: WOL by PME, PXE Operating System: Windows 10 64-bit

Packaging
Package Contents	Accessories: Cables: 3 x SATA 6Gb/s cables Miscellaneous: 2 x M.2 Rubber Packages 1 x Q-connector Installation Media: 1 x Support DVD Documentation: 1 x User manual

Additional Information
First Listed on Newegg	January 18, 2021

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ASUS Prime Z590-A LGA 1200 (Intel 11th/10th Gen) ATX Motherboard (14+2 DrMOS Power Stages, 3 x M.2, Intel 2.5Gb LAN, USB 3.2 Front Panel Type-C, Thunderbolt 4 Support, Aura Sync RGB Lighting)

Learn more about the ASUS PRIME Z590-A

Customer Reviews of the ASUS PRIME Z590-A

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Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info

Item#: N82E16813119369

ASUS Prime Z590-A LGA 1200 (Intel 11th/10th Gen) ATX Motherboard (14+2 DrMOS Power Stages, 3 x M.2, Intel 2.5Gb LAN, USB 3.2 Front Panel Type-C, Thunderbolt 4 Support, Aura Sync RGB Lighting)

Learn more about the ASUS PRIME Z590-A

Customer Reviews of the ASUS PRIME Z590-A

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info