B450 Pro4 - Motherboard ASROCK - Free user manual and instructions

USER MANUAL B450 Pro4 ASROCK

Version 1.0 Published June 2018 Copyright©2018 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 identication or explanation and to the owners’ benet, without intent to infringe. Disclaimer: Specications 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, ocers, employees, or agents be liable for any indirect, special, incidental, or consequential damages (including damages for loss of prots, 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.comAUSTRALIA 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 : +886-2-28965588 ext.123 (Standard International call charges apply) e terms HDMI™ and HDMI High-Denition Multimedia Interface, and the HDMI logo are trademarks or registered trademarks of HDMI Licensing LLC in the United States and other countries.B450 Pro4

English Motherboard Layout

• 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 connection On Link Green 1Gbps connection ACT/LINK LEDSPEED LEDLAN PortEnglish

** To congure 7.1 CH HD Audio, it is required to use an HD front panel audio module and enable the multi- channel audio feature through the audio driver. Please set Speaker Conguration to “7.1 Speaker”in the Realtek HD Audio Manager. Function of the Audio Ports in 7.1-channel Conguration: Port Function Light Blue (Rear panel) Rear Speaker Out Lime (Rear panel) Front Speaker Out Pink (Rear panel) Central /Subwoofer Speaker Out Lime (Front panel) Side Speaker OutB450 Pro4

ank you for purchasing ASRock B450 Pro4 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 x I/O Panel Shield

2 x Screws for M.2 Sockets (Optional) Because the motherboard specications and the BIOS soware might be updated, the content of this manual will be subject to change without notice. In case any modica-tions of this manual 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 specic 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.English

Solid Capacitor design CPU

9 Power Phase design

Supports 105W Water Cooling (Pinnacle Ridge); Supports 95W Water Cooling (Summit Ridge); Supports 65W Water Cooling (Raven Ridge) Chipset

Dual Channel DDR4 Memory Technology

• For Ryzen Series CPUs (Raven Ridge), ECC is only supported with PRO CPUs.

• Please refer to Memory Support List on ASRock's website for more information. (http://www.asrock.com/)

• Please refer to page 23 for DDR4 UDIMM maximum frequency support.

English Expansion Slot AMD Ryzen series CPUs (Summit Ridge and Pinnacle Ridge)

• Supports NVMe SSD as boot disks

• If M2_1 is occupied, PCIE4 will be disabled.

** is feature is only supported with Ryzen Series CPUs (Summit Ridge, Pinnacle Ridge and Raven Ridge). Graphics

Integrated AMD Radeon

Vega Series Graphics in Ryzen Series APU*

• Actual support may vary by CPU

Max. shared memory 2GB

Supports Triple Monitor

Supports HDMI with max. resolution up to 4K x 2K (4096x2160) @ 24Hz / (3840x2160) @ 30Hz

Supports DisplayPort 1.2 with max. resolution up to 4K x 2K (4096x2160) @ 60Hz

Supports D-Sub with max. resolution up to 1920x1200 @ 60Hz

Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and HBR (High Bit Rate Audio) with HDMI Port (Compliant HDMI monitor is required)

Supports HDCP with HDMI and DisplayPort 1.2 Ports

Supports 4K Ultra HD (UHD) playback with HDMI and DisplayPort 1.2 PortsEnglish

7.1 CH HD Audio with Content Protection (Realtek ALC892

• To congure 7.1 CH HD Audio, it is required to use an HD front panel audio module and enable the multi-channel audio feature through the audio driver.

Supports Surge Protection

Supports Wake-On-LAN

Supports Lightning/ESD Protection

Supports Energy Ecient Ethernet 802.3az

Supports PXE Rear Panel I/O

2 x USB 2.0 Ports (Supports ESD Protection)

1 x USB 3.1 Gen2 Type-A Port (10 Gb/s) (Supports ESD Pro- tection)

1 x USB 3.1 Gen2 Type-C Port (10 Gb/s) (Supports ESD Pro- tection)

4 x USB 3.1 Gen1 Ports (Supports ESD Protection)

1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED)

HD Audio Jacks: Line in / Front Speaker / Microphone Storage

4 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0, RAID 1 and RAID 10), NCQ, AHCI and Hot Plug*

2 x SATA3 6.0 Gb/s Connectors by ASMedia ASM1061, sup- port NCQ, AHCI and Hot Plug

• M2_2, SATA3_3 and SATA3_4 share lanes. If either one of them is in use, the others will be disabled.B450 Pro4

1 x Ultra M.2 Socket (M2_1), supports M Key type 2242/2260/2280 M.2 PCI Express module up to Gen3 x4 (32 Gb/s) (with Summit Ridge, Raven Ridge and Pinnacle Ridge)**

1 x M.2 Socket (M2_2), supports M Key type 2230/2242/2260/2280/22110 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen3 x2 (16 Gb/s) ** ** If M2_1 is occupied, PCIE4 will be disabled. ** Supports NVMe SSD as boot disks ** Supports ASRock U.2 Kit Connector

1 x Power LED and Speaker Header

• Supports in total up to 12V/3A, 36W LED Strip

• Supports in total up to 5V/3A, 15W LED Strip

1 x AMD Fan LED Header *e AMD Fan LED Header supports LED strips of maximum load of 3A (36W) and length up to 2.5M.

1 x CPU Fan Connector (4-pin)

• e CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power.

• e CPU/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power.

• e Chassis/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power.

• CPU_FAN2/WP, CHA_FAN1/WP, CHA_FAN2/WP and CHA_FAN3/WP can auto detect if 3-pin or 4-pin fan is in use.

1 x Front Panel Audio Connector

2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD Protection)

1 x USB 3.1 Gen1 Header (Supports 2 USB 3.1 Gen1 ports) (Supports ESD Protection) BIOS Feature

AMI UEFI Legal BIOS with multilingual GUI support

Supports “Plug and Play”

ACPI 5.1 compliance wake up events

DRAM Voltage multi-adjustment Hardware Monitor

Quiet Fan (Auto adjust chassis fan speed by CPU tempera- ture): CPU, CPU/Water Pump, Chassis/Water Pump Fans

ErP/EuP ready (ErP/EuP ready power supply is required)

• For detailed product information, please visit our website: http://www.asrock.com Please realize that there is a certain risk involved with overclocking, including adjust- ing the setting in the BIOS, applying Untied Overclocking Technology, or using third- party overclocking tools. Overclocking may aect 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.B450 Pro4

English is is an ATX form factor motherboard. Before you install the motherboard, study the conguration 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. Failure to do so may cause physical injuries to you 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.

2.1 Installing the CPU

Unplug all power cables before installing the CPU.

2.2 Installing the CPU Fan and Heatsink

Aer you install the CPU into this motherboard, it is necessary to install a larger heatsink and cooling fan to dissipate heat. You also need to spray thermal grease between the CPU and the heatsink to improve heat dissipation. Make sure that the CPU and the heatsink are securely fastened and in good contact with each other. Installing the CPU Box Cooler SR1 Please turn o the power or remove the power cord before changing a CPU or heatsink.

4-pin FAN cable RGB LED Cable +12V *e diagram shown here are for reference only. Please refer to page 32 for the orientation of AMD Fan LED Header (AMD_FAN_LED1).

Please note that only one cable should be used at a time in this step. If you select AMD_FAN_LED1, please install ASRock utility "ASRock Polychrome LED". If you select USB connector, please install AMD utility "SR3 Settings Soware". *e diagram shown here are for reference only. Please refer to page 32 for the orientation of AMD Fan LED Header (AMD_FAN_LED1).

is motherboard provides four 288-pin DDR4 (Double Data Rate 4) DIMM slots, and supports Dual Channel Memory Technology. DDR4 UDIMM Maximum Frequency Support Ryzen Series CPUs (Pinnacle Ridge): Ryzen Series CPUs (Summit Ridge):

1. For dual channel conguration, 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

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.English

ere are 6 PCI Express slots on the motherboard. PCIe slots: PCIE1 (PCIe 2.0 x1 slot) is used for PCI Express x1 lane width cards. PCIE2 (PCIe 3.0 x16 slot) is used for PCI Express x16 lane width graphics cards. PCIE3 (PCIe 2.0 x1 slot) is used for PCI Express x1 lane width cards. PCIE4 (PCIe 3.0 x16 slot) is used for PCI Express x4 lane width graphics cards.* PCIE5 (PCIe 2.0 x1 slot) is used for PCI Express x1 lane width cards. PCIE6 (PCIe 2.0 x1 slot) is used for PCI Express x1 lane width cards.

• If M2_1 is occupied, PCIE4 will be disabled. PCIe Slot Congurations 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. PCIE2 PCIE4 Ryzen Series CPUs (Pinnacle Ridge) x16 x4 Ryzen Series CPUs (Summit Ridge) x16 x4 Ryzen Series CPUs (Raven Ridge) x8 x4B450 Pro4

e illustration shows how jumpers are setup. When the jumper cap is placed on the pins, the jumper is “Short”. If no jumper cap is placed on the pins, the jumper is “Open”. Clear CMOS Jumper (CLRCMOS2) (see p.1, No. 19) CLRCMOS2 allows you to clear the data in CMOS. To clear and reset the system parameters to default setup, please turn o the computer and unplug the power cord from the power supply. Aer waiting for 15 seconds, use a jumper cap to short the pins on CLRMOS2 for 5 seconds. However, please do not clear the CMOS right aer you update the BIOS. If you need to clear the CMOS when you just nish updating the BIOS, you must boot up the system rst, and then shut it down before you do the clear-CMOS action. Please be noted that the password, date, time, and user default prole will be cleared only if the CMOS battery is removed. Please remember toremove the jumper cap aer clearing the CMOS. 2-pin JumperEnglish

2.6 Onboard Headers and Connectors

System Panel Header (9-pin PANEL1) (see p.1, No. 16) GND

RESET#PWRBTN#PLED-PLED+

GND Connect the power switch, reset switch and system status indicator on the chassis to this header according to the pin assignments below. Note the positive and negative pins before connecting the cables. PWRBTN (Power Switch): Connect to the power switch on the chassis front panel. You may congure the way to turn o your system using the power switch. RESET (Reset Switch): Connect to the reset switch on the chassis front panel. Press the reset switch to restart the computer if the computer freezes and fails to perform a normal restart. PLED (System Power LED): Connect to the power status indicator on the chassis front panel. e LED is on when the system is operating. e LED keeps blinking when the system is in S3 sleep state. e LED is o when the system is in S4 sleep state or powered o (S5). HDLED (Hard Drive Activity LED): Connect to the hard drive activity LED on the chassis front panel. e LED is on when the hard drive is reading or writing data. e front panel design may dier by chassis. A front panel module mainly consists of power switch, reset switch, power LED, hard drive activity LED, speaker and etc. When connecting your chassis front panel module to this header, make sure the wire assignments and the pin assignments are matched correctly. Onboard headers and connectors are NOT jumpers. Do NOT place jumper caps over these headers and connectors. Placing jumper caps over the headers and connectors will cause permanent damage to the motherboard.B450 Pro4

English Power LED and Speaker Header (7-pin SPK_PLED1) (see p.1, No. 15)

+5V DUMMY PLED+ PLED+ PLED- DUMMY SPEAKER Please connect the chassis power LED and the chassis speaker to this header. Serial ATA3 Connectors (SATA3_1: see p.1, No. 9) (SATA3_2: see p.1, No. 8) (SATA3_3: see p.1, No. 13) (SATA3_4: see p.1, No. 14) (SATA3_A1: see p.1, No. 11) (SATA3_A2: see p.1, No. 12) ese six SATA3 connectors support SATA data cables for internal storage devices with up to

6.0 Gb/s data transfer rate.

• M2_2, SATA3_3 and SATA3_4 share lanes. If either one of them is in use, the others will be disabled.

ere are two headers on this motherboard. Each USB 2.0 header can support two ports. USB 3.1 Gen1 Header (19-pin USB3_5_6) (see p.1, No. 7)

1. High Denition Audio supports Jack Sensing, but the panel wire on the chassis must

support HDA to function correctly. Please follow the instructions in our manual and chassis manual to install your system.

2. If you use an AC’97 audio panel, please install it to the front panel audio header by

the steps below: A. Connect Mic_IN (MIC) to MIC2_L. B. Connect Audio_R (RIN) to OUT2_R and Audio_L (LIN) to OUT2_L. C. Connect Ground (GND) to Ground (GND). D. MIC_RET and OUT_RET are for the HD audio panel only. You don’t need to connect them for the AC’97 audio panel. E. To activate the front mic, go to the “FrontMic” Tab in the Realtek Control panel and adjust “Recording Volume”. Front Panel Audio Header (9-pin HD_AUDIO1) (see p.1, No. 26)

MIC_RETPRESENCE# GND

is header is for connecting audio devices to the front audio panel. Chassis Fan / Waterpump Fan Connectors (4-pin CHA_FAN1/WP) (see p.1, No. 27) (4-pin CHA_FAN2/WP) (see p.1, No. 18) (4-pin CHA_FAN3/WP) (see p.1, No. 17) GND CHA_FAN_SPEEDFA N_SPEED_CONTROLFAN_VOLTAGE

Please connect fan cables to the fan connectors and match the black wire to the ground pin. CPU Fan Connector (4-pin CPU_FAN1) (see p.1, No. 5) GND FAN_VOLTAGE

is motherboard pro- vides a 4-Pin CPU fan (Quiet Fan) connector. If you plan to connect a 3-Pin CPU fan, please connect it to Pin 1-3.B450 Pro4

is motherboard pro- vides a 4-Pin CPU fan (Quiet Fan) connector. If you plan to connect a 3-Pin CPU fan, please connect it to Pin 1-3. ATX Power Connector (24-pin ATXPWR1) (see p.1, No. 6)

is motherboard pro- vides a 24-pin ATX power connector. To use a 20-pin ATX power supply, please plug it along Pin 1 and Pin

ATX 12V Power Connector (8-pin ATX12V1) (see p.1, No. 1)

is motherboard provides a 8-pin ATX 12V power connector. To use a 4-pin ATX power supply, please plug it along Pin 1 and Pin 5. Serial Port Header (9-pin COM1) (see p.1, No. 23)

CCTS#1RRTS#1DDSR#1DDTR#1RRXD1

GND TTXD1DDCD#1 RRI#1 is COM1 header supports a serial port module. TPM Header (17-pin TPMS1) (see p.1, No. 25)

S_ PWR DWN#SE RIR Q#

is connector supports Trusted Platform Module (TPM) system, which can securely store keys, digital certicates, passwords, and data. A TPM system also helps enhance network security, protects digital identities, and ensures platform integrity.English

RGB LED header is used to con- nect RGB LED extension cable which allows users to choose from various LED lighting ef- fects. Caution: Never install the RGB LED cable in the wrong orienta- tion; otherwise, the cable may be damaged. **Please refer to page 39 for further instructions on this header. AMD FAN LED Header (4-pin AMD_FAN_ LED1) (see p.1, No. 3) 12V GRB

AMD FAN LED Header is used to connect RGB LED extension cable that comes with AMD heatsink. e cable connection allows users to choose from various LED lighting eects. Caution: Never install the FAN LED cable in the wrong orienta- tion; otherwise, the cable may be damaged. Addressable LED Header (3-pin ADDR_LED1) (see p.1, No. 20) VOUT DO_ADDR GND

is header is used to connect Addressable LED extension cable which allows users to choose from various LED lighting eects. Caution: Never install the Addressable LED cable in the wrong orientation; otherwise, the cable may be damaged. *Please refer to page 40 for further instructions on this header.B450 Pro4

The M.2, also known as the Next Generation Form Factor (NGFF), is a small size and versatile card edge connector that aims to replace mPCIe and mSATA. The Ultra M.2 Socket (M2_1) supports type 2242/2260/2280 M.2 PCI Express module up to Gen3 x4 (32 Gb/s) (with Summit Ridge, Raven Ridge and Pinnacle Ridge).

Step 3 Move the stando based on the module type and length. e stando is placed at the nut location C by default. Skip Step 3 and 4 and go straight to Step 5 if you are going to use the default nut. Otherwise, release the stando by hand. Step 4 Peel o the yellow protective lm on the nut to be used. Hand tighten the stando into the desired nut location on the motherboard. Step 5 Gently insert the M.2 (NGFF) SSD module into the M.2 slot. Please be aware that the M.2 (NGFF) SSD module only ts in one orientation. ABC ABC ABC ABC

The M.2, also known as the Next Generation Form Factor (NGFF), is a small size and versatile card edge connector that aims to replace mPCIe and mSATA. e M.2 Socket (M2_2) supports type 2230/2242/2260/2280/22110 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen3 x2 (16 Gb/s).

• M2_2, SATA3_3 and SATA3_4 share lanes. If either one of them is in use, the others will be disabled. Installing the M.2_SSD (NGFF) Module Step 1 Prepare a M.2_SSD (NGFF) module and the screw.

Step 3 Move the stando based on the module type and length. e stando is placed at the nut location D by default. Skip Step 3 and 4 and go straight to Step 5 if you are going to use the default nut. Otherwise, release the stando by hand. BCDE

Step 4 Peel o the yellow protective lm on the nut to be used. Hand tighten the stando into the desired nut location on the motherboard. Step 5 Gently insert the M.2 (NGFF) SSD module into the M.2 slot. Please be aware that the M.2 (NGFF) SSD module only ts in one orientation. ABC ABC

Step 6 Tighten the screw with a screwdriver to secure the module into place. Please do not overtighten the screw as this might damage the module. M.2_SSD (NGFF) Module Support List For the latest updates of M.2_SSD (NFGG) module support list, please visit our website for details: http://www.asrock.com NUT1NUT2 Vendor Interface P/N

ADATA SATA3 ASU800NS38-512GT-C

Gen1 B450 G aming K4B450 Pro4

2.9 ASRock Polychrome LED

ASRock Polychrome LED is a lighting control utility specically designed for unique individuals with sophisticated tastes to build their own stylish colorful lighting system. Simply by connect- ing the LED strip, you can customize various lighting schemes and patterns, including Static, Breathing, Strobe, Cycling, Music, Wave and more. Connecting the LED Strip Connect your RGB LED strip to the RGB LED Header

RGB_LED1) on the motherboard.

1. Never install the RGB LED cable in the wrong orientation; otherwise, the cable

2. Before installing or removing your RGB LED cable, please power o your system

and unplug the power cord from the power supply. Failure to do so may cause dam- ages to motherboard components.

1. Please note that the RGB LED strips do not come with the package.

2. e RGB LED header supports standard 5050 RGB LED strip (12V/G/R/B), with a

maximum power rating of 3A (12V) and length within 2 meters.

Connecting the Addressable RGB LED Strip Connect your Addressable RGB LED strip to the Addressable LED Header (ADDR_LED1)

the motherboard. B450 Pro4

1. Never install the RGB LED cable in the wrong orientation; otherwise, the cable may be

2. Before installing or removing your RGB LED cable, please power o your system and

unplug the power cord from the power supply. Failure to do so may cause damages to motherboard components.

1. Please note that the RGB LED strips do not come with the package.

2. e RGB LED header supports WS2812B addressable RGB LED strip (5V/Data/

GND), with a maximum power rating of 3A (5V) and length within 2 meters.

RESET#PWRBTN#PLED-PLED+

CCTS#1RRTS#1DDSR#1DDTR#1RRXD1

S_ PWR DWN#SE RIR Q#

RESET#PWRBTN#PLED-PLED+

CCTS#1RRTS#1DDSR#1DDTR#1RRXD1

S_ PWRD WN#SE RIRQ #

Supporto WOL (Wake-On-LAN)

Supporto Energy Ecient Ethernet 802.3az

Supporta “Plug and Play”

RESET#PWRBTN#PLED-PLED+

CCTS#1RRTS#1DDSR#1DDTR#1RRXD1

S_ PWR DWN#SE RIR Q#

RESET#PWRBTN#PLED-PLED+

CCTS#1RRTS#1DDSR#1DDTR#1RRXD1

S_ PWR DWN#SE RIR Q#

RESET#PWRBTN#PLED-PLED+

CCTS#1RRTS#1DDSR#1DDTR#1RRXD1

RESET#PWRBTN#PLED-PLED+

CCTS#1RRTS#1DDSR#1DDTR#1RRXD1

S_ PWR DWN#SE RIR Q#

RESET#PWRBTN#PLED-PLED+

CCTS#1RRTS#1DDSR#1DDTR#1RRXD1

S_ PWR DWN#SE RIR Q#

RESET#PWRBTN#PLED-PLED+

CCTS#1RRTS#1DDSR#1DDTR#1RRXD1

S_ PWR DWN#SE RIR Q#

RESET#PWRBTN#PLED-PLED+

CCTS#1RRTS#1DDSR#1DDTR#1RRXD1

S_ PWR DWN#SE RIR Q#

RESET#PWRBTN#PLED-PLED+

CCTS#1RRTS#1DDSR#1DDTR#1RRXD1

S_ PWR DWN#SE RIR Q#

RESET#PWRBTN#PLED-PLED+

CCTS#1RRTS#1DDSR#1DDTR#1RRXD1

Responsible Party Name: ASRock Incorporation Address:13848 Magnolia Ave, Chino, CA91710+1-909-590-8308/+1-909-590-1026 Phone/FaxNo: hereby declares that the product

Product Name : Motherboard Model Number : Conforms to the following specifications:

FCC Part 15, Subpart B, Unintentional Radiators

Supplementary Information: is device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) is device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Representative Person’s Name: James Signature : Date : May 12, 2017

B450 Pro4EU Declaration of Conformity

For the following equipment:Motherboard(Product Name)B450 Pro4 / ASRock(Model Designation / Trade Name)ASRock Incorporation(Manufacturer Name)2F., No.37, Sec. 2, Jhongyang S. Rd., Beitou District, Taipei City 112, Taiwan (R.O.C.)(Manufacturer Address)ASRock EUROPE B.V.(Company Name)Bijsterhuizen 1111 6546 AR Nijmegen e Netherlands(Company Address)Person responsible for making this declaration:(Name, Surname)A.V.P(Position / Title)June 29, 2018(Date)P/N: 15G062107000AK V1.0 EMC

LVD —Directive 2014/35/EU (from April 20th, 2016) EN 60950-1 : 2011+ A2: 2013 ☐

(EU conformity marking)