Asrock B660M Pro RS/D5 Quick Installation Guide

Version 1.0
Published March 2022

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CALIFORNIA, USA ONLY

e Lithium battery adopted on this motherboard contains Perchlorate, a toxic substance
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“Perchlorate Material-special handling may apply, see www.dtsc.ca.gov/hazardouswaste/
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English

B660M Pro RS/D5

Motherboard Layout

Intel

B660

ATX PWR 1

HDLED RESET

PLED PWRBTN

PANEL1

1

1

1

1

3

CPU_FAN1

2

1

PCIE1

1

DDR 5_A2 ( 64 bit, 2 88-pi n modul e)

DDR 5_A1 ( 64 bit, 2 88-pi n modul e)

DDR 5_B2 ( 64 bit, 2 88-pi n modul e)

DDR 5_B1 ( 64 bit, 2 88-pi n modul e)

7

ATX12V1

USB3_ 5_6

CLRMOS1

1

1

HD_AUDIO1

Top:
RJ-45

CHA_FAN1/WP

9

10

5

USB_5_6

24

PCIE2

27

USB3.2 Gen1
T: USB3_4
B:USB3_3

USB2 .0

T: US B_1

B: US B_2

1

ADDR_L ED2

8

SPI_TPM_J1

ADDR_LED1

1

RGB_LED1

1

CHA_FAN3/WP

22

25

USB_3_4

CPU_FAN2/WP

14

15

USB3.2 Gen1
T:

USB3_2

B:

USB3_1

12

19

18

26

M2_2

M2_W IFI

M2_1

CMOS

Battery

SATA3 _2

SATA3 _3

F_USB 3_T C_1

11

BIOS
ROM

23

CHA_FAN2/WP

21

SPK_CI1

1

20

HDM I1

LAN

AUDIO
CODEC

DRAM

CPU

VGA

BOOT

1

ADDR_L ED3

17

DP 1

SATA3 _0

SATA3 _1

13

16

RoHS

BIOS
_FLBK

4

Top:

LINE IN

Cente r:

FRONT

Botto m:

MIC IN

6

M2_3

1

English

No. Description

1 ATX 12V Power Connector (ATX12V1)

2 CPU Fan Connector (CPU_FAN1)

3 2 x 288-pin DDR5 DIMM Slots (DDR5_A1, DDR5_B1)

4 2 x 288-pin DDR5 DIMM Slots (DDR5_A2, DDR5_B2)

5 CPU/Water Pump Fan Connector (CPU_FAN2/WP)

6 Post Status Checker (PSC)

7 Addressable LED Header (ADDR_LED2)

8 Addressable LED Header (ADDR_LED3)

9 ATX Power Connector (ATXPWR1)

10 USB 3.2 Gen1 Header (USB3_5_6)

11 Front Panel Type C USB 3.2 Gen1 (F_USB3_TC_1)

12 SATA3 Connector (SATA3_0)(Upper)

13 SATA3 Connector (SATA3_1)(Lower)

14 SATA3 Connector (SATA3_3)(Lower)

15 SATA3 Connector (SATA3_2)(Upper)

16 System Panel Header (PANEL1)

17 SPI TPM Header (SPI_TPM_J1)

18 USB 2.0 Header (USB_5_6)

19 USB 2.0 Header (USB_3_4)

20 Chassis Intrusion and Speaker Header (SPK_CI1)

21 Chassis/Water Pump Fan Connector (CHA_FAN2/WP)

22 Chassis/Water Pump Fan Connector (CHA_FAN3/WP)

23 RGB LED Header (RGB_LED1)

24 Clear CMOS Jumper (CLRMOS1)

25 Addressable LED Header (ADDR_LED1)

26 Front Panel Audio Header (HD_AUDIO1)

27 Chassis/Water Pump Fan Connector (CHA_FAN1/WP)

2

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B660M Pro RS/D5

I/O Panel

2

1

3

10 9

No. Description No. Description

1 2.5G LAN RJ-45 Port* 6 USB 3.2 Gen1 Ports (USB3_1_2)

2 Line In (Light Blue)** 7 DisplayPort 1.4

3 Front Speaker (Lime)** 8 HDMI Port

4 Microphone (Pink)** 9 BIOS Flashback Button

5 USB 3.2 Gen1 Ports (USB3_3_4) 10 USB 2.0 Ports (USB_1_2)

*ere are two LEDs on each LAN port. Plea se refer to the table below for the LA N port LED indic ations.

ACT/LINK LED

SPEED LED

LAN Por t

Activity / Link LED Speed LED

Status Description Status Description

O No Link O 10Mbps connection

Blinking Data Activity Orange

On Link Green 2.5Gbps connection

8

6

57

100Mbps/1Gbps
connection

4

3

English

** Function of the Audio Ports in 7.1-channel Conguration:

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 Out

4

English

B660M Pro RS/D5

Chapter 1 Introduction

ank you for purchasing ASRock B660M Pro RS/D5 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.

Becau se 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 vi sit our website for s pecic information about the model
you are using. You may nd the l atest VGA cards and CPU suppor t list on ASRock’s
website a s well. ASRock website http://www.asrock.com.

1.1 Package Contents

ASRock B660M Pro RS/D5 Motherboard (Micro ATX Form Factor)

•

ASRock B660M Pro RS/D5 Quick Installation Guide

•

ASRock B660M Pro RS/D5 Support CD

•

2 x Serial ATA (SATA) Data Cables (Optional)

•

3 x Screws for M.2 Sockets (Optional)

•

1 x Stando for M.2 Socket (Optional)

•

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English

1.2 Specications

Platform

CPU

Chipset

Memory

•

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

•

•

•

Micro ATX Form Factor
Solid Capacitor design
2oz Copper PCB

th

Supports 12
Digi Power design
9 Power Phase design
Supports Intel® Hybrid Technology
Supports Intel® Turbo Boost Max 3.0 Technology

Intel® B660

Dual Channel DDR5 Memory Technology
4 x DDR5 DIMM Slots
Supports DDR5 non-ECC, un-buered memory up to
6400+(OC)*
1DPC 1R Up to 6400+ MHz (OC), 4800 MHz Natively.
1DPC 2R Up to 6000+ MHz (OC), 4400 MHz Natively.
2DPC 1R Up to 4800+ MHz (OC), 4000 MHz Natively.
2DPC 2R Up to 4800+ MHz (OC), 3600 MHz Natively.

Max. capacity of system memory: 128GB
Supports Intel® Extreme Memory Prole (XMP) 3.0
15μ Gold Contact in DIMM Slots

Gen Intel® CoreTM Processors (LGA1700)

6

Expansion
Slot

Graphics

CPU:

1 x PCIe 5.0 x16 Slot (PCIE1), supports x16 mode*

•

Chipset:

1 x PCIe 3.0 x1 Slot (PCIE2)*

•

1 x M.2 Socket (Key E), supports type 2230 WiFi/BT PCIe

•

WiFi module and Intel® CNVi (Integrated WiFi/BT)

* Supports NVMe SSD as boot disks

15μ Gold Contact in VGA PCIe Slot (PCIE1)

•

Intel® UHD Graphics Built-in Visuals and the VGA outputs

•

can be supported only with processors which are GPU
integrated.

English

B660M Pro RS/D5

Audio

LAN

e

Graphics Architecture (Gen 12)

Intel® X

•

Dual graphics output: support HDMI and DisplayPort 1.4

•

ports by independent display controllers
Supports HDMI 2.1 TMDS Compatible with max. resolution

•

up to 4K x 2K (4096x2160) @ 60Hz
Supports DisplayPort 1.4 with DSC (compressed) max.

•

resolution up to 8K (7680x4320) @ 60Hz / 5K (5120x3200) @
120Hz
Supports HDCP 2.3 with HDMI 2.1 TMDS Compatible and

•

DisplayPort 1.4 Ports

7.1 CH HD Audio (Realtek ALC897 Audio Codec)

•

Supports Surge Protection

•

Gold Audio Jacks

•

Nahimic Audio

•

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
Suppor ts Wa ke- On-L AN

•

Supports Lightning/ESD Protection

•

Supports Energy Ecient Ethernet 802.3az

•

Supports UEFI PXE

•

Rear Panel
I/O

3 x Antenna Mounting Points

•

1 x HDMI Port

•

1 x DisplayPort 1.4

•

4 x USB 3.2 Gen1 Ports (ASMedia ASM1074 hub) (Supports

•

ESD Protection)
2 x USB 2.0 Ports (Supports ESD Protection)

•

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

•

LED)
1 x BIOS Flashback Button

•

HD Audio Jacks: Line in / Front Speaker / Microphone

•

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English

Storage

RAID

Connector

CPU:

1 x Hyper M.2 Socket (M2_1, Key M), supports type

•

2242/2260/2280 PCIe Gen4x4 (64 Gb/s) mode*

Chipset:

1 x Hyper M.2 Socket (M2_2, Key M), supports type 2280

•

PCIe Gen4x4 (64 Gb/s) mode*
1 x Ultra M.2 Socket (M2_3, Key M), supports type 2280

•

PCIe Gen3x4 (32 Gb/s) mode*
4 x SATA3 6.0 Gb/s Connectors

•

* Supports Intel® OptaneTM Technology (M2_2 and M2_3 only)
* Supports Intel® Volume Management Device (VMD)
* Supports NVMe SSD as boot disks
* Supports ASRock U.2 Kit

Supports RAID 0, RAID 1, RAID 5 and RAID 10 for SATA

•

storage devices

1 x SPI TPM Header

•

1 x Chassis Intrusion and Speaker Header

•

1 x RGB LED Header

•

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

3 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 maxi-

•

mum 1A (12W) fan power.
1 x CPU/Water Pump Fan Connector (4-pin) (Smart Fan

•

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

3 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, CHA_FAN1~3/WP can auto detect if 3-pin
or 4-pin fan is in use.

1 x 24 pin ATX Power Connector

•

1 x 8 pin 12V Power Connector (Hi-Density Power

•

Connec tor)

8

English

B660M Pro RS/D5

BIOS
Feature

Hardware
Monitor

1 x Front Panel Audio Connector

•

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

•

ESD Protection)
1 x USB 3.2 Gen1 Header (Supports 2 USB 3.2 Gen1 ports)

•

(Supports ESD Protection)
1 x Front Panel Type C USB 3.2 Gen1 Header (Supports ESD

•

Protection)

AMI UEFI Legal BIOS with multilingual GUI support

•

ACPI 6.0 Compliant wake up events

•

SMBIOS 2.7 Support

•

CPU Core/Cache, CPU GT, DRAM, VDD_IMC, VCCIN

•

AUX, +1.05V PROC, +1.8V PROC, +0.82V PCH , +1.05V
PCH Voltage Multi-adjustment

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
CASE OPEN detection

•

Voltage monitoring: CPU Vcore, +1.05V_PCH, DRAM, VC-

•

CIN AUX, VCCSA, +1.05V PROC, +0.82V PCH, +12V, +5V,
+3.3V

Microso® Windows® 10 64-bit / 11 64-bit

OS

Certica­tions

* For detailed product information, please visit our website: http://www.asrock .com

Please realize that the re is a certain risk involved with overclocking, including
adjusting the setting in the BIOS, applying Untied Overclocking Technology, or using
third-party overclocking tool s. 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.

•

FCC, CE

•

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

•

9

English

Chapter 2 Installation

is is a Micro 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.

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B660M Pro RS/D5

2.1 Installing the CPU

1

1. Before you insert the 1700-Pin CPU into the socket, please check if the PnP ca p is on the
socket, if the CPU surface is unclean, or if there are any bent pins in the socket. Do not
force to in sert the CPU into the socket if above situation is found. Otherwise, the CPU
will be seriously damaged.

2. Unplug all power cables before in stalling the CPU.

2 3

A

B

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English

4

76

5

12

English

B660M Pro RS/D5

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

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2.2 Installing the CPU Fan and Heatsink

1 2

14

CPU_FAN

English

B660M Pro RS/D5

2.3 Installing Memory Modules (DIMM)

is motherboard provides four 288-pin DDR5 (Double Data Rate 5) DIMM slots,
and supports Dual Channel Memory Technology.

1. For dual channel conguration , you always need to in stall identical (the same brand,
speed , size and chip-type) DDR5 DIMM pairs.

2. It is unable to activate Dual Channel Memor y Technology with only one or three memory
module installed.

3. It is not allowed to install a DDR, DDR2 , DDR3 or DDR4 memory module into a DDR5
slot; otherwise, this motherboard and DIMM may be damaged.

Dual Channel Memory Conguration

Priority DDR5_A1 DDR5_A2 DDR5_B1 DDR5_B2

1 Populated Populated
2 Populated Populated Populated Populated

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.

15

English

1

2

16

3

English

B660M Pro RS/D5

2.4 Expansion Slots (PCIe Slots)

ere are 2 PCIe slots on the motherboard.

Before installing an ex pansion card, please make sure that the power supply is
switched o or the power cord is unplugged. Plea se read the documentation of the
expan sion card and make necessary hardware settings for the card before you start
the installation.

PCIe slots:

PCIE1 (PCIe 5.0 x16 slot) is used for PCIe x16 lane width graphics cards.
PCIE2 (PCIe 3.0 x1 slot) is used for PCIe x1 lane width cards.

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English

2.5 Jumpers Setup

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
(CLRMO S1)
(see p.1, No. 24)

CLRMOS1 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. Aer waiting for 15 seconds, use a jumper cap to
short the pins on CLRMOS1 for 5 seconds. However, please do not clear the
CMOS right aer 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 prole will be cleared only if the CMOS battery is
removed. Please remember toremove the jumper cap aer clearing the CMOS.

2-pin Jumper

18

If you clear the CMOS, the case open may be detec ted. Please adjust the BIOS option
“Clear Status” to clear the record of previou s chassis intrusion status.

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B660M Pro RS/D5

2.6 Onboard Headers and Connectors

1

+5V

DUMMY

SIGNAL

GND

DUMMY

SPEAKER

DUMMY

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.

System Panel Header
(9-pi n PANEL1)
(see p.1, No. 16)

PWRBTN (Power Switch):

Connec t to the power switch on the chassi s front panel. You may congure the way to
turn o your system using the power switch.

RESET (Reset Switch):
Connec t to the reset switch on the chassis front panel. Press the reset sw itch to restart
the computer if the compute r freezes and fails to perform a normal restart.

PLED (Syste m Power LED):
Connec t to the power status indicator on the chassis front panel. e LED i s on when
the system is ope rating. e LED keeps blinking when the system i s in S1/S3 sleep
state. e LED is o when the system is in S4 sleep state or powered o (S5).

HDLED (Ha rd Drive Activity LED):
Connec t to the hard drive activity LED on the chassis front panel. e LED is on
when the hard drive i s reading or writing data.

e front panel design may dier by chassis. A front panel module mainly consists
of power switch, reset switch, power LED, hard dr ive activity LED, speak er and etc.
When connecting your chassis front panel module to this head er, make sure the wire
assig nments and the pin assig nments are matched correctly.

1

PLED+

PLED-

HDLED-

HDLED+

PWRBTN#

GND

RESET#

GND

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.

Chassis Intrusion and
Speaker Header
(7-pi n SPK_CI1)
(see p.1, No. 20)

Please connect the
chassis intrusion and the
chassis speaker to this header.

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Serial ATA3 Connectors

ype-C Cable

DUMMY

GND

GND

P+

P-

USB_PWR

P+

P-

USB_PWR

1

1

Right Angle:
(SATA3_0:
see p.1, No. 12)(Upper)
(SATA3_1:
see p.1, No. 13)(Lower)
(SATA3_2:
see p.1, No. 15)(Upper)
(SATA3_3:
see p.1, No. 14)(Lower)

SATA3_0

SATA3_2

ese four SATA3 connectors
support SATA data cables for
internal storage devices with
up to 6.0 Gb/s data transfer

SATA3_1

rate.

SATA3_3

USB 2.0 Headers
(9-pin USB_3_4)
(see p.1, No. 19)
(9-pin USB_5_6)
(see p.1, No. 18)

USB 3.2 Gen1 Header
(19-pin USB3_5_6)
(see p.1, No. 10)

Front Panel Type C USB

3.2 Gen1 Header
(20-pin F_USB3_TC_1)
(see p.1, No. 11)

IntA_PA_SSRX-

IntA_PA_SSRX+

IntA_PA_SSTX-

IntA_PA_SSTX+

IntA_PA_D-

IntA_PA_D+

Vbus

GND

GND

USB T

VbusVbus

IntA_PB_SSRX-

IntA_PB_SSRX+

GND

IntA_PB_SSTX-

IntA_PB_SSTX+

GND

IntA_PB_D-

IntA_PB_D+

Dummy

ere are two USB 2.0 headers
on this motherboard. Each
USB 2.0 header can support
two ports.

ere is one USB 3.2 Gen1
header on this motherboard.
is USB 3.2 Gen1 header can
support two ports.

ere is one Front Panel
Type C USB 3.2 Gen1 Header
on this motherboard. is
header is used for connecting
a USB 3.2 Gen1 module for
additional USB 3.2 Gen1
ports.

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B660M Pro RS/D5

Front Panel Audio Header

J_SENSE

OUT2_L

1

MIC_RET

PRESENCE#

GND

OUT2_R

MIC2_R

MIC2_L

OUT_RET

GND

AN_SPEED_CONTRO

GND

1

FAN_SPEED_CONTROL

4 3 2 1

(9-pin HD_ AUDIO1)
(see p.1, No. 26)

1. High Denition Audio support s 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. Conne ct 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”.

is header is for connecting
audio devices to the front
audio panel.

Chassis/Water Pump Fan
Connectors
(4-pin CHA_FAN1/WP)
(see p.1, No. 27)

(4-pin CHA_FAN2/WP)
(see p.1, No. 21)
(4-pin CHA_FAN3/WP)
(see p.1, No. 22)

CPU Fan Connector
(4-pin CPU_FAN1)
(see p.1, No. 2)

2
3
4

FAN_VOLTAGE

1 2 3 4

FAN_VOLTAGE

CHA_FAN_SPEED

FAN_SPEED_CONTROL

CHA_FAN_SPEED

F

GND

+12V

CPU_F

AN_SPEED

is motherboard
provides three 4-Pin water
cooling

chassis

fan
connectors. If you plan to
connect a 3-Pin

chassis
cooler fan, please connect it to
Pin 1-3.

L

is motherboard provides
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.

water

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English

CPU/Water Pump Fan

4 3 2 1

4

1

8 5

1

SPI_DQ3

#

Connector
(4-pin CPU_FAN2/WP)
(see p.1, No. 5)

GND

FAN_VOLTAGE

CPU_F

AN_SPEED

FAN_SPEED_CONTROL

is motherboard
provides a 4-Pin water cool­ing CPU fan connector. If you
plan to connect a 3-Pin CPU
water cooler fan, please con­nect it to Pin 1-3.

ATX Power Connector
(24-pin ATXPWR1)
(see p.1, No. 9)

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

SPI TPM Header
(13 -pi n SPI_TPM _J1)
(see p.1, No. 17)

12

1

SPI_PWR

SPI_CS0

SPI_DQ2

Dummy

CLK

RSMRST#

SPI_MISO

24

13

SPI_MOSI

RST#

TPM_PIRQ

SPI_TPM_CS

GND

is motherboard provides a
24-pin ATX power connector.
To use a 20-pin ATX power
supply, please plug it along
Pin 1 and Pin 13.

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.

*Warning: Please make

sure that the power cable

connected is for the CPU

and not the graphics card.

Do not plug the PCIe power

cable to this

connector.

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

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B660M Pro RS/D5

RGB LED Header

1

1

DO_ADDR

(4-pin RGB_LED1)
(see p.1, No. 23)

+12V GRB

is RGB LED header is used to con­nect RGB LED
extension cable which allow
users to choose from various LED
lighting eects.

Caution: Never install the RGB

LED cable in the wrong orientation;

otherwise, the cable may be dam-

aged.

*Please refer to page 37 for further
instructions on this header.

Addressable LED Headers
(3-pin A DDR_LED1)
(see p.1, No. 25)

(3-pin A DDR_LED2)
(see p.1, No. 7)
(3-pin A DDR_LED3)
(see p.1, No. 8)

VOUT

1

DO_ADDR

GND

VOUT

GND

ese three headers are used to con­nect

Addressable

LED
extension cables which allow
users to choose from various LED
lighting eects.

Caution: Never install the Address-

able LED cable in the wrong orien-

tation; otherwise, the cable may be

damaged.

*Please refer to page 38 for
further instructions on this header.

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2.7 Smart Switch

e motherboard has one smart switch: BIOS Flashback Button, allowing users to
ash the BIOS.

BIOS Flashback Button
(BIOS_FLBK)

BIOS Flashback Switch allows
users to ash the BIOS.

(see p.3, No. 9)

ASRock BIOS Flashback feature allows you to update BIOS without powering on the system, even
without CPU.

Before u sing the BIOS Flashback f unction, please su spend BitLocker and any encryption
or security relying on the TPM. Make sure that you have already stored and backup-ed
the recovery key. If the recovery key is missing while encryption is active, the data will stay
encrypted and the system will not boot into the operating system. It is recommended to dis­able f TPM before updating the BIOS. Otherwise an unpredictable failure may occur.

To use the USB BIOS Flashback function, Please follow the steps below.

1. Download the latest BIOS le from ASRock's website : http://www.asrock.com.

2. Copy the BIOS le to your USB ash drive. Please make sure the le system of

your USB ash drive must be FAT32.

3. Extract BIOS  le from the zip le.

4. Rename the le to “creative.rom” and save it to the root director y of X: USB ash drive.

5. Plug the 24 pin power connector to t he motherboard. en turn on the power supply's AC
switch.
*ere is no need to power on the system.

6. en plug your USB drive to the USB BIOS Flashback port.

7. Press the BIOS Flashback Switch for about three seconds. en the LED starts to blink.

8. Wait until the LED stops blinking, indicating that BIOS ashing has been completed.
*If the LED light turns solid green, this means that the BIOS Flashback is not
operating properly. Please make sure that you plug the USB drive to the USB BIOS Flashback
port.
**If the LED does not light up at all then please disconnect power from the system and remove/
disconnect the CMOS battery from the motherboard for several minutes. Reconnect power
and battery and try again.

24

USB BIOS Flashback port

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B660M Pro RS/D5

2.8 Post Status Checker

Post Status Checker (PSC) diagnoses the computer when users power on the
machine. It emits a red light to indicate whether the CPU, memory, VGA or stor­age is dysfunctional. e lights go o if the four mentioned above are functioning
normally.

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2.9 M.2 WiFi/BT PCIe WiFi Module and Intel® CNVi (Integrated
WiFi/BT) Installation Guide

e 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 (Key
E) supports type 2230 WiFi/BT PCIe WiFi module and Intel® CNVi (Integrated WiFi/BT).
* e M.2 socket does not support SATA M.2 SSDs.

Before you install Intel® Integrated Connectivity (CNVi) module, be sure to turn o the AC
power.

Installing the WiFi/BT module or Intel® CNVi (Integrated WiFi/BT)

Step 1

Prepare a type 2230 WiFi/BT
PCIe WiFi module or Intel® CNVi
(Integrated WiFi/BT) and the screw.

Step 2

Find the nut location to be used.

26

PCB Length: 3cm
Module Type: Type2230

A

English

B660M Pro RS/D5

Step 3

Gently insert the WiFi/BT PCIe WiFi
module or Intel® CNVi (Integrated
WiFi/BT) into the M.2 slot. Please be
aware that the module only ts in one

A

o

A

20

orientation.

Step 4

Tighten the screw with a screwdriver
to secure the module into place.
Please do not overtighten the screw as
this might damage the module.

A

27