ASROCK Z490 Extreme4 User manual

Version 1.1
Published January 2020
Copyright©2020 ASRock INC. All rights reserved.
Copyright Notice:
No part of this documentation may be reproduced, transcribed, transmitted, or
translated in any language, in any form or by any means, except duplication of
documentation by the purchaser for backup purpose, without written consent of
ASRock Inc.
Products and corporate names appearing in this documentation may or may not
be registered trademarks or copyrights of their respective companies, and are used
only for identication or explanation and to the owners’ benet, without intent to
infringe.
Disclaimer:
Specications and information contained in this documentation are furnished for
informational use only and subject to change without notice, and should not be
constructed as a commitment by ASRock. ASRock assumes no responsibility for
any errors or omissions that may appear in this documentation.
With respect to the contents of this documentation, ASRock does not provide
warranty of any kind, either expressed or implied, including but not limited to
the implied warranties or conditions of merchantability or tness for a particular
purpose.
In no event shall ASRock, its directors, ocers, employees, or agents be liable for
any indirect, special, incidental, or consequential damages (including damages for
loss of prots, loss of business, loss of data, interruption of business and the like),
even if ASRock has been advised of the possibility of such damages arising from any
defect or error in the documentation or product.
is device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that
may cause undesired operation.
CALIFORNIA, USA ONLY
e Lithium battery adopted on this motherboard contains Perchlorate, a toxic substance
controlled in Perchlorate Best Management Practices (BMP) regulations passed by the
California Legislature. When you discard the Lithium battery in California, USA, please
follow the related regulations in advance.
“Perchlorate Material-special handling may apply, see www.dtsc.ca.gov/hazardouswaste/
perchlorate”
ASRock Website: http://www.asrock.com

AUSTRALIA ONLY
Our goods come with guarantees that cannot be excluded under the Australian
Consumer Law. You are entitled to a replacement or refund for a major failure and
compensation for any other reasonably foreseeable loss or damage caused by our
goods. You are also entitled to have the goods repaired or replaced if the goods fail
to be of acceptable quality and the failure does not amount to a major failure. If
you require assistance please call ASRock Tel : [phone] ext.123 (Standard
International call charges apply)
e terms HDMI® and HDMI High-Denition Multimedia Interface, and the
HDMI logo are trademarks or registered trademarks of HDMI Licensing LLC in the
United States and other countries.

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Z490 Extreme4
Motherboard Layout

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No. Description
1 12V Power Connector (ATX12V1)
2 CPU Fan Connector (CPU_FAN1)
3 2 x 288-pin DDR4 DIMM Slots (DDR4_A1, DDR4_B1)
4 2 x 288-pin DDR4 DIMM Slots (DDR4_A2, DDR4_B2)
5 CPU/Water Pump Fan Connector (CPU_FAN2/WP_3A)
6 Addressable LED Header (ADDR_LED2)
7 RGB LED Header (RGB_LED2)
8 ATX Power Connector (ATXPWR1)
9 Front Panel Type C USB 3.2 Gen1 Header (USB31_TC_2)
10 USB 3.2 Gen1 Header (USB3_5_6)
11 SATA3 Connector (SATA3_2)
12 SATA3 Connector (SATA3_3)
13 SATA3 Connector (SATA3_1)
14 SATA3 Connector (SATA3_0)
15 Chassis/Water Pump Fan Connector (CHA_FAN5/WP)
16 POST Status Checker (PSC)
17 SPI TPM Header (SPI_TPM_J1)
18 Chassis/Water Pump Fan Connector (CHA_FAN3/WP)
19 SATA3 Connector (SATA3_4)
20 SATA3 Connector (SATA3_5)
21 System Panel Header (PANEL1)
22 Power LED and Speaker Header (SPK_PLED1)
23 Chassis/Water Pump Fan Connector (CHA_FAN4/WP)
24 Chassis/Water Pump Fan Connector (CHA_FAN2/WP)
25 USB 2.0 Header (USB_5_6)
26 USB 2.0 Header (USB_3_4)
27 Clear CMOS Jumper (CLRMOS1)
28 USB 3.2 Gen1 Header (USB3_3_4)
29 RGB LED Header (RGB_LED1)
30 Addressable LED Header (ADDR_LED1)
31 Front Panel Audio Header (HD_AUDIO1)
32 underbolt AIC Connector (TB1)
33 Chassis/Water Pump Fan Connector (CHA_FAN1/WP)
34 ATX 12V Power Connector (ATX12V2)

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Z490 Extreme4
I/O Panel
No. Description No. Description
1 USB 2.0 Ports (USB_1_2) 8 Microphone (Pink)
2 USB 3.2 Gen2 Type-A Port (USB31_TA_1) 9 Optical SPDIF Out Port
3 2.5G LAN RJ-45 Port (Dragon RTL8125BG)* 10 USB 3.2 Gen1 Ports (USB3_12)***
4 Central / Bass (Orange) 11 USB 3.2 Gen2 Type-C Port (USB31_TC_1)
5 Rear Speaker (Black) 12 DisplayPort 1.4
6 Line In (Light Blue) 13 HDMI Port
7 Front Speaker (Lime)** 14 PS/2 Mouse/Keyboard Port
ACT/LINK LED
SPEED LED
LAN Port
* ere are two LEDs on each LAN port. Please refer to the table below for the LAN port LED indications.
Activity / Link LED Speed LED
Status Description Status Description
O No Link O 10Mbps connection
Blinking Data Activity Orange 100Mbps/1Gbps connection
On Link Green 2.5Gbps connection
1
89101113
5
4
7
6
32
14 12

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** If you use a 2-channel speaker, please connect the speaker’s plug into “Front Speaker Jack”. See the table below
for connection details in accordance with the type of speaker you use.
Audio Output
Channels
Front Speaker
(No. 7)
Rear Speaker
(No. 5)
Central / Bass
(No. 4)
Line In
(No. 6)
2V -- -- --
4V V -- --
6V V V --
8V V V V
*** ACPI wake-up function is not supported on USB3_12 ports.

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Z490 Extreme4
Chapter 1 Introduction
ank you for purchasing ASRock Z490 Extreme4 motherboard, a reliable
motherboard produced under ASRock’s consistently stringent quality control.
It delivers excellent performance with robust design conforming to ASRock’s
commitment to quality and endurance.
1.1 Package Contents
• ASRock Z490 Extreme4 Motherboard (ATX Form Factor)
• ASRock Z490 Extreme4 Quick Installation Guide
• ASRock Z490 Extreme4 Support CD
• 4 x Serial ATA (SATA) Data Cables (Optional)
• 4 x Screws for M.2 Sockets (Optional)
• 2 x Standos for M.2 Sockets (Optional)
Because the motherboard specications and the BIOS soware might be updated, the
content of this documentation will be subject to change without notice. In case any
modications of this documentation occur, the updated version will be available on
ASRock’s website without further notice. If you require technical support related to
this motherboard, please visit our website for specic information about the model
you are using. You may nd the latest VGA cards and CPU support list on ASRock’s
website as well. ASRock website http://www.asrock.com.

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1.2 Specications
Platform • ATX Form Factor
• 2oz Copper PCB
CPU • Supports 10th Gen and future generation Intel® CoreTM
Processors (Socket 1200)
• Digi Power design
• 11 Power Phase design
• Supports Intel® Turbo Boost 3.0 Technology
• Supports Intel® K-Series unlocked CPUs
• Supports ASRock BCLK Full-range Overclocking
• Supports ASRock Hyper BCLK Engine III
Chipset • Intel® Z490
Memory • Dual Channel DDR4 Memory Technology
• 4 x DDR4 DIMM Slots
• Supports DDR4 4266+(OC)*/4133(OC)/4000
(OC)/3866(OC)/3800(OC)/3733(OC)/3600(OC)/3200
(OC)/2933/2800/2666/2400/2133 non-ECC, un-buered
memory
* Please refer to Memory Support List on ASRock's website for
more information. (http://www.asrock.com/)
* CoreTM (i9/i7) support DDR4 up to 2933; CoreTM (i5/i3),
Pentium® and Celeron® support DDR4 up to 2666.
• Supports ECC UDIMM memory modules (operate in non-
ECC mode)
• Max. capacity of system memory: 128GB
• Supports Intel® Extreme Memory Prole (XMP) 2.0
• 15μ Gold Contact in DIMM Slots
Expansion
Slot
• 2 x PCI Express 3.0 x16 Slots (PCIE1/PCIE3: single at x16
(PCIE1); dual at x16 (PCIE1) / x4 (PCIE3)*
* Supports NVMe SSD as boot disks
• 3 x PCI Express 3.0 x1 Slots
• Supports AMD Quad CrossFireXTM and CrossFireXTM
• 1 x M.2 Socket (Key E), supports type 2230 WiFi/BT module
and Intel® CNVi (Integrated WiFi/BT)
• 15μ Gold Contact in VGA PCIe Slot (PCIE1)

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Z490 Extreme4
Graphics • Intel® UHD Graphics Built-in Visuals and the VGA outputs
can be supported only with processors which are GPU
integrated.
• Hardware Accelerated Codecs: AVC/H.264, HEVC/H.265
8bit, HEVC/H.265 10bit, VP8, VP9 8bit, VP9 10bit, MPEG 2,
MJPEG, VC-1
* VP9 10bit and VC-1 are for decode only.
* VP8 and VP9 encode are not supported by Windows OS.
• Graphics, Media & Compute: Microso DirectX 12, OpenGL
4.5, Intel® Built In Visuals, Intel® Quick Sync Video, Hybrid /
Switchable Graphics, OpenCL 2.1
• Display & Content Security: Rec. 2020 (Wide Color Gamut),
Microso PlayReady 3.0, Intel® SGX Content Protection,
UHD/HDR Blu-ray Disc
• Dual graphics output: support HDMI and DisplayPort 1.4
ports by independent display controllers
• Supports HDMI 1.4 with max. resolution up to 4K x 2K
(4096x2160) @ 30Hz
• Supports DisplayPort 1.4 with max. resolution up to 4K x 2K
(4096x2304) @ 60Hz
• Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and
HBR (High Bit Rate Audio) with HDMI 1.4 Port (Compliant
HDMI monitor is required)
• Supports HDCP 2.3 with HDMI 1.4 and DisplayPort 1.4
Ports
• Supports 4K Ultra HD (UHD) playback with HDMI 1.4 and
DisplayPort 1.4 Ports
Audio • 7.1 CH HD Audio with Content Protection (Realtek
ALC1200 Audio Codec)
• Premium Blu-ray Audio support
• Supports Surge Protection
• 110dB SNR DAC with Dierential Amplier
• PCB Isolate Shielding
• Individual PCB Layers for R/L Audio Channel
• Gold Audio Jacks
• Nahimic Audio

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LAN • 2.5 Gigabit LAN 10/100/1000/2500 Mb/s
• Dragon RTL8125BG
• Supports Dragon 2.5G LAN Soware
- Smart Auto Adjust Bandwidth Control
- Visual User Friendly UI
- Visual Network Usage Statistics
- Optimized Default Setting for Game, Browser, and
Streaming Modes
- User Customized Priority Control
• Supports Wake-On-LAN
• Supports Lightning/ESD Protection
• Supports Energy Ecient Ethernet 802.3az
• Supports PXE
Rear Panel
I/O
• 2 x Antenna Ports
• 1 x PS/2 Mouse/Keyboard Port
• 1 x HDMI Port
• 1 x DisplayPort 1.4
• 1 x Optical SPDIF Out Port
• 2 x USB 2.0 Ports (Supports ESD Protection)
• 1 x USB 3.2 Gen2 Type-A Port (10 Gb/s) (ReDriver) (Supports
ESD Protection)
• 1 x USB 3.2 Gen2 Type-C Port (10 Gb/s) (ReDriver) (Supports
ESD Protection)
• 2 x USB 3.2 Gen1 Ports (Intel® Z490) (Supports ESD
Protection)
* Ultra USB Power is supported on USB3_12 ports.
* ACPI wake-up function is not supported on USB3_12 ports.
• 1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED
LED)
• HD Audio Jacks: Rear Speaker / Central / Bass / Line in /
Front Speaker / Microphone (Gold Audio Jacks)
Storage • 6 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0,
RAID 1, RAID 5, RAID 10, Intel Rapid Storage Technology
17), NCQ, AHCI and Hot Plug*
* If M2_2 is occupied by a SATA-type M.2 device, SATA3_1 will
be disabled.
* If M2_3 is occupied by a SATA-type M.2 device, SATA3_5 will
be disabled.

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Z490 Extreme4
• 1 x Ultra M.2 Socket (M2_2), supports M Key type
2260/2280 M.2 SATA3 6.0 Gb/s module and M.2 PCI Ex-
press module up to Gen3 x4 (32 Gb/s)**
• 1 x Ultra M.2 Socket (M2_3), supports M Key type
2260/2280/22110 M.2 SATA3 6.0 Gb/s module and M.2 PCI
Express module up to Gen3 x4 (32 Gb/s)**
** Supports Intel® OptaneTM Technology
** Supports NVMe SSD as boot disks
** Supports ASRock U.2 Kit
Connector • 1 x SPI TPM Header
• 1 x Power LED and Speaker Header
• 2 x RGB LED Headers
* Support in total up to 12V/3A, 36W LED Strip
• 2 x Addressable LED Headers
* Support in total up to 5V/3A, 15W LED Strip
• 1 x CPU Fan Connector (4-pin)
* e CPU Fan Connector supports the CPU fan of maximum
1A (12W) fan power.
• 1 x CPU/Water Pump Fan Connector (4-pin) (Smart Fan
Speed Control)
* CPU_FAN2/WP_3A supports the water cooler fan of maxi-
mum 3A (36W) fan power.
• 5 x Chassis/Water Pump Fan Connectors (4-pin) (Smart Fan
Speed Control)
* e Chassis/Water Pump Fan supports the water cooler fan of
maximum 2A (24W) fan power.
* CPU_FAN2/WP_3A, CHA_FAN1/WP, CHA_FAN2/WP,
CHA_FAN3/WP, CHA_FAN4/WP and CHA_FAN5/WP can
auto detect if 3-pin or 4-pin fan is in use.
• 1 x 24 pin ATX Power Connector (Hi-Density Power Con-
nector)
• 1 x 8 pin 12V Power Connector (Hi-Density Power Connec-
tor)
• 1 x 4 pin 12V Power Connector (Hi-Density Power Connec-
tor)
• 1 x Front Panel Audio Connector
• 1 x underbolt AIC Connector (5-pin) (Supports ASRock
underbolt 3 AIC R2.0 Card only)

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• 2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Intel® Z490)
(Supports ESD Protection)
• 2 x USB 3.2 Gen1 Headers (Support 4 USB 3.2 Gen1 ports)
(ASMedia ASM1074 hub) (Supports ESD Protection)
• 1 x Front Panel Type C USB 3.2 Gen1 Header (Intel® Z490)
(Supports ESD Protection)
BIOS
Feature
• AMI UEFI Legal BIOS with multilingual GUI support
• ACPI 6.0 Compliant wake up events
• SMBIOS 2.7 Support
• CPU Core/Cache, GT, DRAM, VPPM, PCH 1.05V, VCCIO,
VCCST, VCCSA Voltage Multi-adjustment
Hardware
Monitor
• Temperature Sensing: CPU, CPU/Water Pump, Chassis/Wa-
ter Pump Fans
• Fan Tachometer: CPU, CPU/Water Pump, Chassis/Water
Pump Fans
• Quiet Fan (Auto adjust chassis fan speed by CPU tempera-
ture): CPU, CPU/Water Pump, Chassis/Water Pump Fans
• Fan Multi-Speed Control: CPU, CPU/Water Pump, Chassis/
Water Pump Fans
• Voltage monitoring: +12V, +5V, +3.3V, CPU Vcore, DRAM,
VPPM, PCH 1.05V, VCCSA, VCCST, VCCIO
OS • Microso® Windows® 10 64-bit
Certica-
tions
• FCC, CE
• ErP/EuP ready (ErP/EuP ready power supply is required)
Please realize that there is a certain risk involved with overclocking, including
adjusting the setting in the BIOS, applying Untied Overclocking Technology, or using
third-party overclocking tools. Overclocking may aect your system’s stability, or
even cause damage to the components and devices of your system. It should be done
at your own risk and expense. We are not responsible for possible damage caused by
overclocking.
* For detailed product information, please visit our website: http://www.asrock.com

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Z490 Extreme4
is is an ATX form factor motherboard. Before you install the motherboard, study
the conguration of your chassis to ensure that the motherboard ts into it.
Pre-installation Precautions
Take note of the following precautions before you install motherboard components
or change any motherboard settings.
• Make sure to unplug the power cord before installing or removing the motherboard
components. Failure to do so may cause physical injuries and damages to motherboard
components.
• In order to avoid damage from static electricity to the motherboard’s components,
NEVER place your motherboard directly on a carpet. Also remember to use a grounded
wrist strap or touch a safety grounded object before you handle the components.
• Hold components by the edges and do not touch the ICs.
• Whenever you uninstall any components, place them on a grounded anti-static pad or
in the bag that comes with the components.
• When placing screws to secure the motherboard to the chassis, please do not over-
tighten the screws! Doing so may damage the motherboard.
Chapter 2 Installation

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2.1 Installing the CPU
1. Before you insert the 1200-Pin CPU into the socket, please check if the PnP cap
is on the socket, if the CPU surface is unclean, or if there are any bent pins in the
socket. Do not force to insert the CPU into the socket if above situation is found.
Otherwise, the CPU will be seriously damaged.
2. Unplug all power cables before installing the CPU.
1
2
A
B

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Z490 Extreme4
4
5
3

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Please save and replace the cover if the processor is removed. e cover must be
placed if you wish to return the motherboard for aer service.

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Z490 Extreme4
2.2 Installing the CPU Fan and Heatsink
1 2
CPU_FAN

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2.3 Installing Memory Modules (DIMM)
is motherboard provides four 288-pin DDR4 (Double Data Rate 4) DIMM slots,
and supports Dual Channel Memory Technology.
Dual Channel Memory Conguration
e DIMM only ts in one correct orientation. It will cause permanent damage to
the motherboard and the DIMM if you force the DIMM into the slot at incorrect
orientation.
Priority DDR4_A1 DDR4_A2 DDR4_B1 DDR4_B2
1Populated Populated
2Populated Populated Populated Populated
1. For dual channel conguration, you always need to install identical (the same
brand, speed, size and chip-type) DDR4 DIMM pairs.
2. It is unable to activate Dual Channel Memory Technology with only one or three
memory module installed.
3. It is not allowed to install a DDR, DDR2 or DDR3 memory module into a DDR4
slot; otherwise, this motherboard and DIMM may be damaged.

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Z490 Extreme4
1
2
3

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2.4 Expansion Slots (PCI Express Slots)
ere are 5 PCI Express slots on the motherboard.
PCIe slots:
PCIE1 (PCIe 3.0 x16 slot) is used for PCI Express x16 lane width graphics cards.
PCIE2 (PCIe 3.0 x1 slot) is used for PCI Express x1 lane width cards.
PCIE3 (PCIe 3.0 x16 slot) is used for PCI Express x4 lane width graphics cards.
PCIE4 (PCIe 3.0 x1 slot) is used for PCI Express x1 lane width cards.
PCIE5 (PCIe 3.0 x1 slot) is used for PCI Express x1 lane width cards.
PCIe Slot Congurations
Before installing an expansion card, please make sure that the power supply is
switched o or the power cord is unplugged. Please read the documentation of the
expansion card and make necessary hardware settings for the card before you start
the installation.
For a better thermal environment, please connect a chassis fan to the motherboard’s
chassis fan connector (CHA_FAN1~5/WP) when using multiple graphics cards.
PCIE1 PCIE3
Single Graphics Card x16 N/A
Two Graphics Cards in
CrossFireXTM Mode x16 x4