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 ww w.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
: +886-2-28965588 ext.123 (Standard International call charges apply)
Contents
Chapter 1 Introduction 1
1.1 Package Contents 1
1.2 Specications 2
1.3 Motherboard Layout 6
1.4 Onboard LED Indicators 9
1.5 I/O Panel 11
Chapter 2 Installation 14
2.1 Screw Holes 14
2.2 Pre-installation Precautions 14
2.3 Installing the CPU and Heatsink 15
2.4 Installation of Memory Modules (DIMM) 21
2.5 Expansion Slots (PCIe Slots) 23
2.6 Jumper Setup 25
2.7 Onboard Headers and Connectors 27
2.8 Unit Identication purpose LED/Switch 35
2.9 Driver Installation Guide 35
2.10 M.2_SSD (NGFF) Module Installation Guide 36
Chapter 3 UEFI Setup Utility 38
3.1 ntroduction 38
3.1.1 UEFI Menu Bar 38
3.1.2 Navigation Keys 39
3.2 Main Screen
3.2 Main Screen 40
3.3 Advanced Screen 41
3.3.1 CPU Conguration 42
3.3.2 DRAM Conguration 45
3.3.3 Chipset Conguration 47
3.3.4 Storage Conguration 50
3.3.5 ACPI Conguration 51
3.3.6 USB Conguration 52
3.3.7 Super IO Conguration 53
3.3.8 Serial Port Console Redirection 54
3.3.9 H/W Monitor 57
3.3.10 Runtime Error Logging 58
3.3.11 Intel SPS Conguration 60
3.3.12 Intel® VMD technology 61
3.3.13 Tls Auth Conguration 64
3.3.14 Instant Flash 65
3.4 Security 66
3.4.1 Key Management 67
3.5 Boot Screen 70
3.5.1 CSM Parameters 72
3.6 Server Mgmt 74
3.6.1 System Event Log 75
3.6.2 View System Event Log 76
3.6.3 BMC Network Conguration 76
3.6.4 BMC Tools 78
3.7 Event Logs 79
3.8 Exit Screen 80
Chapter 4 Software Support 81
4.1 Install Operating System 81
4.2 Support CD Information 81
4.2.1 Running The Support CD 81
4.2.2 Drivers Menu 81
4.2.3 Utilities Menu 81
4.2.4 Contact Information 81
Chapter 5 Troubleshooting 82
5.1 Troubleshooting Procedures 82
5.2 Technical Support Procedures 84
5.3 Returning Merchandise for Service 84
Chapter 1 Introduction
ank you for purchasing ASRock C621A WS 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.
In this manual, chapter 1 and 2 contains introduction of the motherboard and step-
by-step guide to the hardware installation. Chapter 3 and 4 contains the conguration
guide to BIOS setup and information of the Support CD.
Becau se the motherboard specications and the BIOS soware might be updated, the
content of this documentation will be subject to change without notice. In case any
modications of this documentation occur, the upd ated version will be available on
ASRock’s website w ithout f urther notice. If you require technical support related to
this motherboard, please vi sit our website for s pecic 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.
C621A WS
1.1 Package Contents
ASRock C621A WS Motherboard (ATX Form Factor)
•
ASRock C621A WS Quick Installation Guide
•
ASRock C621A WS Support CD
•
1 x TPM-SPI module
•
1 x CPU Non-Fabric Carrier (Optional)
•
1 x Mini SAS HD to 4*SATA Cable (60cm) (Optional)
•
1 x SATA Power Cable (80cm) (Opt ional)
•
1 x SATA3 Data Cable (60cm) (Opt iona l)
•
1 x I/O Panel Shield
•
If any items are missing or appear dam aged, contac t your authorized deal er.
English
1.2 Specications
Platform
CPU
Chipset
Memory
Expansion
Slot
* If PCIE2 is occupied, PCIE3 will downgrade to x8 mode. If
PCIE4 is occupied, PCIE5 will downgrade to x8 mode. If PCIE6
Please realiz e that the re is a certain r isk involved with o verclocking, including
adjusting the setting in the BIOS, applying Untied Overclocking Technology, or using
third-party overclocking tool s. Overclocking may aect your s ystem’s stability, or
even cause dam age to the components and devices of your system. It should be done
at your own risk and expense. We are not responsible for poss ible damage caused by
overclocking.
•
ErP/EuP ready (ErP/EuP ready power supply is required)
40MiniSAS HD SATA/PCIE Slection Jumper (MINISAS_1)
41BMC SMBus Header (BMC_SMB_1)
42ESPI Flash Sharing Jumper (ESPI_SHARE)
43Intelligent Platform Management Bus Header (IPMB1)
44COM Header (COM1)
45BIOS Recovery Jumper (BIOS_RECOVERY1)
46Non Maskable Interrupt Button (NMI_BTN2)
47PCI Express 4.0 x16 Card Slot (PCIE1)
48CPU PECI Mode Jumper (PECI1)
49ME Recovery Jumper (ME_RECOVERY1)
50PCI Express 4.0 x8 Card Slot (PCIE2)
51Password Reset Jumper (PASSWORD_CLEAR)
52BIOS Swap Override Header (ESPI_MODE1)
53PCI Express 4.0 x16 Card Slot (PCIE3)
54ESPI/LPC Selection Jumper (ESPI_LPC_ SEL1)
55PCI Express 4.0 x8 Card Slot (PCIE4)
56PCI Express 4.0 x16 Card Slot (PCIE5)
57PCI Express 4.0 x8 Card Slot (PCIE6)
58Clear CMOS Pad (CLRMOS1)
59PCI Express 4.0 x16 Card Slot (PCIE7)
602 x 288-pin DDR4 DIMM Slots (DDR4_A1, DDR4_C1)*
612 x 288-pin DDR4 DIMM Slots (DDR4_B1, DDR4_D1)*
*For DIMM in stallation and conguration instructions, ple ase see p.21 (Installation of Memor y Modules
(DIMM)) for more detail s.
**2 Type-C USB headers (USB31_TC1/USB31_TC2) are shared with 2 SATA 7-pin headers (SSATA_2/SSATA_3)
(BOM option)
89
1.4 Onboard LED Indicators
2
3
4
5
6
7
C621A WS
1
English
No.ItemStatusDescription
1SB_PWR1GreenSTB PWR ready
2FAN _LE D1AmberFAN1 failed
3FAN _LE D2AmberFAN2 failed
4FAN _LE D3AmberFAN3 failed
5FAN _LE D4AmberFAN4 f aile d
6FAN _LE D5AmberFAN5 f ailed
7BLED1GreenBMC heartbeat LED
English
1011
1.5 I/O Panel
3
5
C621A WS
1
No. DescriptionNo. Description
1VGA Por t ( VGA1)61G LAN RJ-45 Port (LAN4)**
2USB 3.2 Gen1 Ports (USB3_3_4)710G LAN RJ-45 Port (LAN1)***
3LAN RJ-45 Port (IPMI_LAN)*810G LAN RJ-45 Port (LAN2)***
4USB 3.2 Gen1 Ports (USB3_1_2)9UID Switch (UID1)
51G LAN RJ-45 Port (LAN3)**
2
4
6
7
8
9
English
*ere are two LED next to the LAN port. Please refer to the table below for the LAN port
LED indications.
ACT/LINK LED
SPEED LED
LAN Por t
Dedicated IPMI LAN Port LED Indications
Activity / Link LEDSpeed LED
StatusDescriptionStatusDescription
ONo LinkO10M bps connection or no
link
Blinking Orange Data ActivityYe l low100M bps connection
On LinkGreen1G bps connection
**ere are two LEDs on each LAN port. Please refer to the table below for the LAN port
LED indications.
ACT/LINK LE D
SPEED LE D
ACT/LINK LE D
LAN Port
SPEED LE D
LAN Port (LAN3, LAN4) LED Indications
Activity / Link LEDSpeed LED
StatusDescriptionStatusDescription
ONo LinkO10Mbps connection or
no link
Blinking YellowData ActivityYel low100Mbps connection
OnLinkGreen1Gbps connection
English
1213
C621A WS
***ere are two LEDs on each LAN port. Please refer to the table below for the LAN port
LED indications.
ACT/LINK LED
SPEED LED
LAN Por t
LAN Port (LAN1, LAN2) LED Indications
Activity / Link LEDSpeed LED
StatusDescriptionStatusDescription
ONo LinkO100Mbps connection or
no link
Blinking GreenData ActivityYel low1Gbps connection
OnLinkGreen10Gbps connection
English
Chapter 2 Installation
is is an ATX form factor (12” x 9.6”, 30.5 cm x 24.4 cm) motherboard. Before you install
the motherboard, study the conguration of your chassis to ensure that the motherboard
ts into it.
Make sure to unplug the power cord before installing or re moving the motherboard . Failure
to do so may cause physical injurie s to you and d amages to motherboard components.
2.1 Screw Holes
Place screws into the holes indicated by circles to secure the motherboard to the chassis.
Do not over-tighten the screws! Doing so may damage the motherboard.
2.2 Pre-installation Precautions
Take note of the following precautions before you insta ll motherboard components or
change any motherboard settings.
1. Unplug the power cord from the wall socket before touching any components.
2. To avoid damaging the motherboard’s components due to static electricity, NEVER
place your motherboard directly on the carpet or the like. Also remember to use a
grounded wrist strap or touch a safety grounded object before you handle the compo-
nents.
3. Hold components by the edges and do not touch the ICs.
4. Whenever you uninstall any component, place it on a grounded anti-static pad or in
the bag that comes with the component.
5. When placing screws into the screw holes to secure the motherboard to the chassis,
please do not over-tighten the screws! Doing so may damage the motherboard.
Before you install or remove any component, ensure that the power is switched o or the
power cord is detached f rom the power supply. Failure to d o so may cau se severe damage to
the motherboard, peripherals, and/or components.
English
1415
2.3 Installing the CPU and Heatsink
1. Before you insert the CPU into the socket, please check if the PnP cap is on the socket ,
if the CPU sur face is unclean, or if there are any bent pins in the socket. Do not force to
inser t the CPU into the socket if above situation is found. Oth erwise, the CPU will be
seriously damaged.
2. Unplug all power c ables before in stalling the CPU.
1
C621A WS
Socket Dust Cover
English
1. Before you installed the heatsink , you need to spray thermal interface material between the CPU
and the heatsink to improve heat dissipation.
2. Illustration in this documentation are examples only. Heatsink or fan cooler type may dier.
2
CPU Carrier
3
English
1617
C621A WS
4
5
180
o
English
6
7
English
CPU Carrier
1819
C621A WS
8
Heatsink
CPU Carrier
Socket
English
9
10
English
2021
2.4 Installation of Memory Modules (DIMM)
is motherboard provides eight 288-pin DDR4 (Double Data Rate 4) DIMM slots in two
groups, and supports Eight Channel Memory Technology.
CPU1
A1B1C1D1E1F1G1H1
1 DIMM
2 DIMMS
4 DIMMS
8 DIMMS
1. It is not allowe d to install a DDR, DDR 2 or DDR3 memory module into a DDR4 slot;
2. For eight channel conguration , you always need to in stall identical (the same brand,
########
otherwise , this motherboard and DIM M may be damaged.
speed , size and chip-type) DDR4 DIMM pairs.
#
##
####
C621A WS
English
1
2
3
English
2223
2.5 Expansion Slots (PCIe Slots)
ere are 7 PCIe slots on this motherboard.
PCIE slot:
PCIE1, PCIE3, PCIE5 and PCIE7 (PCIE 4.0 x16 slot, from CPU1) are used for PCIe x16
lane width cards.
PCIE2, PCIE4 and PCIE6 (PCIE 4.0 x8 slot, from CPU1) are used for PCIe x8 lane width
cards.
SlotGenerationMechanicalElectricalSource
PCIE74.0x16x16CPU1
PCIE64.0x8x8CPU1
PCIE54.0x16x16CPU1
PCIE44.0x8x8CPU1
PCIE34.0x16x16CPU1
PCIE24.0x8x8CPU1
PCIE14.0x16x16CPU1
PCIe Slot Congurations
C621A WS
PCIE2PCIE3
Single PCIE CardN/Ax16
Two PCIE Cardsx8x8
PCIE4PCIE5
Single PCIE CardN/Ax16
Two PCIE Cardsx8x8
PCIE6PCIE7
Single PCIE CardN/Ax16
Two PCIE Cardsx8x8
English
Installing an expansion card
Step 1. 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.
Step 2. Remove the system unit cover (if your motherboard is already installed
in a chassis).
Step 3. Remove the bracket facing the slot that you intend to use. Keep the
screws for later use.
Step 4. Align the card connector with the slot and press rmly until the card is
completely seated on the slot.
Step 5. Fasten the card to the chassis with screws.
English
Step 6. Replace the system cover.
2425
2.6 Jumper 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”. e illustration shows a 3-pin jumper whose pin1 and pin2 are “Short”
when a jumper cap is placed on these 2 pins.
MiniSAS HD SATA/PCIE
Selection Jumper
(3-p in MI NISA S_1)
(see p.6, No. 40)
CPU PECI Mode Jumper
(3-p in PECI1)
(see p.6, No. 48)
SATA (Default)
CPU PECI connected to
PCH
PCIE
CPU PECI connected to
BMC (Default)
C621A WS
Security Override Jumper
(3-pin SEC_OR1)
(see p.6, No. 33)
ME Recover y Jumper
(3-pin ME_RECOVERY1)
(see p.6, No. 49)
Password Reset Jumper
(3-pin PASSWORD_
CLEAR)
(see p.6, No. 51)
Descriptor Security
Override
Normal Mode (Default)
Normal Mode (Default)
Not override (Default)
ME Recover y Mode
Password Clear
English
BIOS Recovery Jumper
(3-p in BIOS _R ECOVERY1)
(see p.6, No. 45)
ESPI/LPC Selection Jumper
(3-p in ES PI_LPC _S EL1)
(see p.6, No. 54)
ESPI Flash Sharing Jumper
(3-pin E SPI_SHARE)
(see p.6, No. 42)
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
“O pen”.
Normal Mode (Default)
ESPI (Default)
Master ESPI Flash Sharing
(Default)
Recover BIOS
LPC
Slave ESPI Flash Sharing
BIOS Swap Override
Jumper
(ESPI_MODE1)
(see p.6, No. 52)
2-pin Jumper
Open: Disable Override (Default)
Short: Enable Override
English
2627
2.7 Onboard Headers and Connectors
Onboard headers and connectors are NOT jump ers. Do NOT place jumper caps over these
heade rs and connectors. Placing jumper caps over the headers and connectors will cause
permanent damage to the motherboard.
C621A WS
System Panel Header
(9-pi n PANEL1)
(see p.6, No. 29)
PWRBTN (Power Switch):
Connec t to the power switch on the ch assi s front panel. You may congure the way to tur n
o your system using the power switch.
RESET (Reset Switch):
Connec t to the reset switch on the chassi s front panel. Press the reset sw itch to restart the
computer if the computer f reezes and fails to per form a normal restar t.
PLED (Syste m Power LED):
Connec t to the power status indicator on the chas sis front panel. e LED i s on when the
system is operating. 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 ac tivity LED on the chassis front panel. e LED is on when the
hard drive is reading or wr iting data.
e front panel de sign may dier by chassis. A front panel module mainly consists of powe r
switch, reset switch , power LED, hard dr ive activity LED, speaker and etc. When connecting your ch assi s front panel module to thi s header, make sure the wire a ssignments and the
pin assignments are matched correctly.
1
PLED+
PLED-
HDLED-
HDLED+
PWRBTN#
GND
GND
RESET#
GND
Co n nec t t h e pow er switch,
reset switch and system status
indicator on the chassis to this
he ader a ccording t o t he pi n
assignments. Particularly note
the positive and negative pins
before connecting the cables.
English
Auxiliary Panel Header
1
A
B
(18-pin AUX_PANEL1)
(see p.6, No. 30)
is header supports multiple
functions on the front panel,
SMB _Aler t
SMB _CLK
LAN 1_LIN K
+3V SB
GND
SMB _DATA
including the front panel SMB,
LED _PWR
LED _PWR
LAN 2_LIN K
internet status indicator and
chassis intrusion pin.
GND
+5V SB
CAS EOPEN
C
GND
LOC ATORBTN #
LOC ATORLED 1-
LOC ATORLED 1+
E
Sys tem F ault LED+
D
Sys tem F ault LED-
A. Front panel SMBus connecting pin (6-1 pin FPSMB)
is hea der allows you to connec t SMBus (System Management Bus) equipment. It c an
be used for communication between peripheral equipment in the system, which ha s slower
transmission rates, and power management equipment.
B. Internet status indicator (2-pin LAN1_ LED, LAN2_LED)
ese two 2-pin headers allow you to use the Gigabit internet indicator cable to connect
to the LAN status indicator. When this indicator ickers , it means that the internet is properly connected.
C. Cha ssis intrusion pin (2-pin CHASSIS)
is hea der is p rovided for host computer chassis with chassis intrusion detection d esigns.
In addition, it mu st also work with e xternal detection equipment, such as a chassi s intrusion detection sensor or a microswitch. When this function is activated, if any cha ssis
component movement occ urs, the senso r will immediately detect it and send a signal to this
heade r, and the system will then record this chassis intr usion event. e defau lt setting is
set to the CASEOPEN and GND pin; this function i s o.
D. Locator LED (4-pin LOCATOR)
is hea der is for the locator sw itch and L ED on the front pane l.
E. Syste m Fault LED (2-pin LOCATOR)
is hea der is for the Fault LED on the s ystem .
English
Mini-SAS HD Connector
Right-A ng le:
(SATA_ 0_3)
(see p.6, No. 22)
SATA_0_3
is connector supports
MiniSAS-to-SATA
data cables for internal
storage devices with up
to 6.0 Gb/s data transfer
rate.
2829
C621A WS
65 4321
NC
1
Dummy
IntA_PA_D+
USB 3.2 Gen1 Header
(19-pin USB3_5_6)
(see p.6, No. 6)
System Fan Connectors
(6-pi n FAN1)
(6-pin FAN2)
(6-pin FAN3)
(6-pin FAN4)
(6-pin FAN5)
(see p.6, No. 3, 8, 13, 14,
19)
Front Panel Type C USB
3.2 Gen2 Headers
(20-pin USB31_TC_1)
see p.6, No. 23)
(20-pin USB31_TC_2)
(see p.6, No. 24)
IntA_PA_D-
GND
IntA_PA_SSTX+
GND
IntA_PB_D-
IntA_PB_D+
IntA_PA_SSTX-
GND
IntA_PA_SSRX+
IntA_PA_SSRX-
Vbus
IntA_PB_SSRX-
IntA_PB_SSRX+
GND
IntA_PB_SSTX-
IntA_PBA_SSTX+
GND
FAN_VOLTAGE
FAN_SPEED
FAN_SPEED_CONTROL
SENSOR
Vbus
Besides four default USB 3.2
Gen1 ports on the I/O panel,
there is one USB 3.2 Gen1
header on this motherboard.
is USB 3.2 Gen1 header can
support two USB 3.2 Gen1
ports.
Please connect fan cables to the
fan connectors and match the
black wire to the ground pin.
All fans support Fan Control.
ere are two Front Panel Type
C USB 3.2 Gen2 Header on this
motherboard. ese headers
are used for connecting
USB 3.2 Gen2 modules for
additional USB 3.2 Gen2 ports.
*2 Type-C USB headers (USB31_TC1/
USB31_TC2) are shared with 2 SATA
7-pin headers (SSATA_2/SSATA_3)
(BOM option).
USB 2.0 Connector
(U SB_1)
(see p.6, No. 34)
ere is one vertical USB 2.0
port on this motherboard.
English
USB 2.0 Header
USB_PWR
USB_PWR
GND
+12V
SMB _DA TA _MA I
#
(9-pin USB_2_3)
(see p.6, No. 27)
ATX Power Connector
(24-p i n ATX PWR1)
(see p.6, No. 4)
P-
P+
GND
DUMMY
is is one header on
this motherboard. is
USB 2.0 header can
1
3V
3V
13
3V
-12V
GND
P+
P-
PWROK_PS
GND
5V
GND
PSON#
5VSB
GND
GND
12V
5V
GND
GND
GND
N/A
support two ports.
is motherboard provides a
12V
3V
24-pin ATX power connector.
121
To use a 20-pin ATX power
supply, please plug it along Pin
24
5V5V5V
GND
1 and Pin 13.
ATX 12V Power
Connectors
(8-pin ATX12V1)
(see p.6, No. 5)
(4-pin ATX12V2)
(see p.6, No. 7)
SATA DOM Power
Connector
(3-p in SATAPWR1)
(see p.6, No. 15)
(3-pin SATAPW R 2)
(see p.6, No. 12)
GND
1
5
1
3
4
8
12V
2
4
is motherboard provides
one 8-pin and one 4-pin ATX
12V power connectors.
Please use a SATA power cable
+5V
GND
to connect this SATA Power
Connector and your SATA
HDD for supplying power
from the motherboard, when
using DC-IN mode without
SATA power supply.
English
TPM Header
(17-pi n TP M1)
(see p.6, No. 36)
GND
LAD 0
LAD 3
+3V
+3V SB
D
GN
SER IRQ#
S_P WRD WN#
PCI RST #
N
GND
LAD 1
LAD 2
is connector supports
K
Trusted Platform Module
LFR AME
PCI CL
(TPM) system, which can
1
securely store keys, digital
certicates, passwords, and
D
data. A TPM system also helps
GN
enhance network security,
protects digital identities, and
SMB _CL K_ MAI N
ensures platform integrity.
3031
C621A WS
ALERT
IPMB_SDA
No Connect
BMC_SMB_PRESENT_1_N
P
TPM-SPI Header
(13-pin TPM_BIOS_PH1)
(see p.6, No. 32)
PSU SMBus Header
(5-pin PSU_SMB1)
(see p.6, No. 2)
Intelligent Platform
Management Bus Header
(4-pin IPMB1)
(see p.6, No. 43)
TPM_CS#
SPI_RST
SPI PIRQ
SMBCLK
1
SMBDATA
IPMB_SCL
GND
GND
MOSI
MISO
RSMRST#
X
SPI_CLK
+3V
GND
SPI_WP
SPI_CS
+3.3V
SPI_HOLD
is connector supports
Trusted Platform Module
(TPM) system for SPI
1
interface, which can securely
store keys, digital certicates,
passwords, and data. A TPM
system also helps enhance
network securit y, protects
digital identities, and ensures
platform integrity.
PSU SMBus monitors the
status of the power supply, fan
and system temperature.
This 4-pin connector is used
to provide a cabled base-board
or front panel connection for
value added features and 3rd-
party add-in cards, such as
Emergency Management cards,
that provide management
features using the IPMB.
Baseboard Management
Controller SMBus Header
(5-pin BMC_SMB _1)
(see p.6, No. 41)
CPU HP-SMBus Connec-
tor
(5-pin CPU1_HSBP1)
(see p.6, No. 1)
Power
BMC_SMBCLK7
GND
BMC_SMBDATA7
CPU_HP_SCL
CPU_HP_SDA
0_HP_ALERT_L
GND
e header is used for the SM
BUS devices.
+3V
is header is used for the hot
plug feature of HDDs on the
backplane.
1
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Serial ATA3 DOM
Connectors
(SATA_4)
(see p.6, No. 18)
(SATA_5)
(see p.6, No. 16)
SATA _ 5
SATA _ 4
e SATA3 DOM connectors
support both SATA DOMs
(Disk-On-Module) and SATA
data cables for internal storage
devices.
Serial ATA3 Connectors
Ver ti c a l:
(SATA_4)
(see p.6, No. 18)
(SATA_5)
(see p.6, No. 16)
Serial Port Header
(9-p in CO M1)
(see p.6, No. 44)
Clear CMOS Pad
(CLRMO S1)
(see p.6, No. 58)
Non Maskable Interrupt
Button Header
(NMI _BTN2)
(see p.6, No. 46)
SATA _ 5
SATA _ 4
DDCD#1
TTXD1
GND
RRTS#1
RRI#1
CCTS#1
DDSR#1
DDTR#1
GND
1
CONTROL
RRXD1
ese two SATA3 connectors
support SATA data cables for
internal storage devices with
up to 6.0 Gb/s data transfer
rate.
*2 Type-C USB headers (USB31_TC1/
USB31_TC2) are shared with 2 SATA
7-pin headers (SSATA_2/SSATA_3)
(BOM option).
is COM header supports a
1
serial port module.
is allows you to clear the
data in CMOS. To clear CMOS,
take out the CMOS battery and
short the Clear CMOS Pad.
Please con nect a NMI dev ic e
to this header.
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TR1
LAN3_LINK
SCLOCK
GND
GND
H_VSENSEINPMAX_CPU1
ermal Sensor Header
(2-p in TR 1)
(see p.6, No. 39)
Front LAN LED Header
(4-pi n FRONT_ LED _
LA N34)
(see p.6, No. 35)
Chassis Speaker Header
(4-p i n SPEAKER1)
(see p.6, No. 26)
Serial General Purpose
Input/Output Headers
(7-pin SATA _ SGPIO1)
(see p.6, No. 37)
(7-pin SSATA_SGPIO1)
(see p.6, No. 38)
1
DUMMY
1
SDATAOUT
1
+5V
1
LAN4_LINK
LED_PWR
LED_PWR
SPEAKER
DUMMY
SLOAD
GND
Please connect the thermal
sensor cable to either pin 1-2
or pin 2-3 and the other end to
the device which you wish to
monitor its temperature.
is 4-pin connector is used
for the front LAN status
indicator.
Please connect the chassis
speaker to this header.
e headers support Serial
Link interface for onboard
SATA connections.
PWM Conguration
Header
(3-p in PW M _CF G1)
(see p.6, No. 11)
CPU VSENSE Header
(3-pin CPU_VSENSE)
(see p.6, No. 10)
1
1
GND
SMB_DATA_VSB
SMB_CLK_VSB
GND
is header is used for PWM
congurations.
is header is used to detect
CPU1 VSENSE.
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Virtual RAID On CPU
GND
Header
(4-p i n RAID_ 1)
(see p.6, No. 28)
VROC RAID KEY
1
is connector supports Intel®
Virtual RAID on CPU and
GND
+3VSB
NVME/AHCI RAID on CPU
PCIE.
With the introduction of the Intel VROC product, there are three modes of operation:
SKUHW key requiredKey features
• Pass-thru only (no RAID)
Pass-thruNot needed
• LED Management
• Hot Plug Support
• RAID 0 support for Intel Fultondale NVMe SSDs
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StandardVROCSTANMOD
Premium
VROCPREMMOD
• Pass-thru SKU features
• RAID 0, 1, 10
• Standard SKU features
• RAID 5
ISS
VROCISSDMOD
• RAID 5 Write Hole Closure
*Only Intel SSDs are supported.
*For further details on VROC, please refer to the ocial information released by Intel.
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2.8 Unit Identication purpose LED/Switch
With the UID button, You are able to locate the server you’re working on from behind
a rack of servers.
C621A WS
Unit Identication
purpose LED/Switch
(U ID1)
(see p.11, No. 9)
When the UID button on the
front or rear panel is pressed,
the front/rear UID blue LED
indicator will be truned on.
Press the UID button again to
turn o the indicator.
2.9 Driver Installation Guide
To install the drivers to your system, please insert the support CD to your optical
drive rst. en, the drivers compatible to your system can be auto-detected and listed
on the support CD driver page. Please follow the order from top to bottom to install
those required drivers. erefore, the drivers you install can work properly.
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2.10 M.2_SSD (NGFF) Module Installation Guide
3
The M.2, a lso known as the Next Generation Form Factor (NGFF), is a sma ll size a nd
versatile card edge connector that aims to replace mPCIe and mSATA.
e Ultra M.2 Socket (M2_1) supports a M.2 SATA3 6.0 Gb/s module or a M.2 PCI Express
module up to Gen3 x4 (32G b/s). e M.2 Socket (M2_2) supports a M.2 SATA3 6.0 Gb/s
module or a M.2 PCI Express module up to Gen3 x1 (8 Gb/s).
Installing the M.2_SSD (NGFF) Module
Step 1
Prepare a M.2_SSD (NGFF) module
and the screw.
Step 2
2
1
Depending on the PCB type and
length of your M.2_SSD (NGFF)
module, nd the corresponding nut
location to be used.
ABC
No.123
Nut LocationABC
PCB Length4.2cm8cm11cm
Module TypeTyp e 22 42Type 228 0Type 22110
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Step 3
Move the stando based on the
module type and length.
ABC
ABC
ABC
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
Align and 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
o
20
Step 6
Tighten the screw with a screwdriver
to secure the module into place.
Please do not overtighten the screw as
NUT1NUT2C
this might damage the module.
For the latest updates of M.2_SSD (NFGG) module support list, please visit our website for
details: http://www.asrock.com
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Chapter 3 UEFI Setup Utility
3.1 Introduction
is section explains how to use the UEFI SETUP UTILITY to congure your system. e
UEFI chip on the motherboard stores the UEFI SETUP UTILITY. You may run the UEFI
SETUP UTILITY when you start up the computer. Please press <F2> or <Del> during the
Power-On-Self-Test (POST) to enter the UEFI SETUP UTILITY; other wise, POST will
continue with its test routines.
If you wish to enter the UEFI SETUP UTILITY aer POST, restart the system by pressing
<Ctrl> + <Alt> + <Delete>, or by pressing the reset button on the system chassis. You may
also restart by turning the system o and then back on.
Becau se the UEFI soware is constantly being upd ated, the following UEFI setup screens
and descriptions are for reference pur pose only, and they may not exactly match what you
see on your screen.
3.1.1 UEFI Menu Bar
e top of the screen has a menu bar with the following selections:
ItemDescription
MainTo set up the system time/date information
AdvancedTo set up the advanced UEFI features
Server MgmtTo manage the server
SecurityTo set up the security features
Boot
Event LogsFor event log conguration
ExitTo exit the current screen or the UEFI SETUP UTILITY
To set up the default system device to locate and load the
Operating System
Use < > key or < > key to choose among the selections on the menu bar, and
then press <Enter> to get into the sub screen.
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3.1.2 Navigation Keys
Please check the following table for the function description of each navigation key.
Navigation Key(s)Function Description
/Moves cursor le or right to select Screens
/Moves cursor up or down to select items
+ / -To change option for the selected items
<Ta b>Switch to next function
<Enter>To bring up the selected screen
<PGUP>Go to the previous page
<PGDN>Go to the next page
<HOME>Go to the top of the screen
<END>Go to the bottom of the screen
<F1>To display the General Help Screen
<F7>Discard changes and exit the UEFI SETUP UTILITY
<F9>Load optimal default values for all the settings
<F10>Save changes and exit the UEFI SETUP UTILITY
<F12>Print screen
<ESC>Jump to the Exit Screen or exit the current screen
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3.2 Main Screen
Once you enter the UEFI SETUP UTILITY, the Main screen will appear and display the
system over view. e Main screen provides system overview information and allows you
to set the system time and date.
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3.3 Advanced Screen
In this section, you may set the congurations for the following items: CPU Conguration,
DRAM Conguration, Chipset Conguration, Storage Conguration, ACPI Congura-
tion, USB Conguration, Super IO Conguration, Serial Port Console Redirection, H/W
Setting wrong values in this sec tion may cause the system to malfunction.
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3.3.1 CPU Conguration
Intel SpeedStep Technology
Intel SpeedStep technology allows processors to switch between multiple frequencies and
voltage points for better power saving and heat dissipation. CPU turbo ratio can be xed
when Intel SpeedStep Technolog y set Disabled and Intel Turbo Boost Technology set En-
abled.
Please note that enabling this function may reduce CPU voltage and lea d to system stability
or compatibility issues with some power supplies. Ple ase set this item to [Disabled] if above
issues occur.
Intel Turbo Boost Technology
Intel Turbo Boost Technology enables the processor to run above its base operating fre-
quency when the operating system requests the highest performance state.
Intel Hyper Threading Technology
Intel Hyper reading Technology allows multiple threads to run on each core, so that the
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overall performance on threaded soware is improved.
Long Duration Maintained
Congure the period of time until the CPU ratio is lowered when the Long Duration Power
Limit is exceeded.
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Short Duration Power Limit
Congure Package Power Limit 2 in watts. When the limit is exceeded, the CPU ratio will
be lowered immediately. A lower limit can protect the CPU and save power, while a higher
limit may improve performance.
Long Duration Power Limit
Congure Package Power Limit 1 in watts. When the limit is exceeded, the CPU ratio will
be lowered aer a period of time. A lower limit can protect the CPU and save power, while
a higher limit may improve performance.
Active Processor 1 Cores
Select the number of cores to enable in each processor package.
4-clusters SNC and 1-way I MC interleave. Enable SNC2 or SNC 4 wil l gray out iMC_
Interleave knob and UmaBasedClutering k nob.
Delayed Authentication Mode (DAM) Override
Use this item to enable or disable overriding the state of the Delayed Authentication Mode
(DA M).
UMA-Based Clustering
UMA Based Clustering options include Disable (ALL2ALL), Hemisphere (2 cluster), and
Quadrant (4 cluster, not supported on ICX). These options are on ly valid when SNC is
disabled. If SNC is enabled, UMA-Based Clustering is automatically disabled by BIOS.
Total Memory Encryption (TME)
Use this item to enable or disable Total Memory Encryption (TME).
SW Guard Extensions (SGX)
Use this item to enable or disable So ware Guard Extensions (SGX).
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Enable/Disable SGX Auto MP Registration Agent
e MP registration agent is responsible for register the platform.
SGX Registration Server
Use this item to choose which server should be used for SGX registration.
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3.3.2 DRAM Conguration
Enforce POR
Enable to enforce POR restrictions for DDR4 frequency and voltage programming.
C621A WS
DRAM Frequency
If [Auto] is selected, the motherboard will detect the memory modu le(s) inserted and
assign the appropriate frequency automatically.
Numa
Use this item to enable or disable Non Uniform Memory Access (NUMA).
IMC Interleaving
Select to congure IMC Interleaving settings.
Mirror Mode
Mirror Mode will set entire 1LM/2LM memory in system to be mirrored, consequently
reducing the memory capacity by half. Mirror Enable will disable XPT Prefetch.
Memory Rank Sparing
Enable or disable Memory Rank Sparing.
ADDDC Sparing
Enable or disable Memory Rank Sparing.
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Multi Rank Sparing
Set Multi Rank Sparing number. Default and the maximum is 2 ranks per channel.
Patrol Scrub
Patrol Scrub is a background activity initiated by the processor to seek out and x memor y
errors. e default value is [Enabled].
Data Scrambling for DDR4
Enable - Enables data scrambling for DDR4.
Disable - Disables this feature.
Auto - Sets it to the MRC default setting; current default is Enable.
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3.3.3 Chipset Conguration
MMCFG Base
Use this item to select MMCFG Base.
C621A WS
MMIO High Base
Use this item to select MMIO High Base.
MMIO High Granularity Size
Use this item to select MMIO Granularity Size.
Above 4G Decoding
Enable or disable 64bit capable Devices to be decoded in Above 4G Address Space (only if
the system supports 64 bit PCI decoding).
Primary Graphics Adapter
If PCI Express graphics card is installed on the motherboard, you may use this option to
select PCI Express or Onboard VGA as the primary graphics adapter.
*If no PCI Express graphics card is in stalled, [Onboard VGA] is the default g raphic s adapter. ere is no screen
on monitor even if a HDMI display is connecte d. Sel ect [Onboard Hdmi] ins tead to u se HDMI as output source.
Onboard VGA
Use this to enable or disable the Onboard VGA function. e default value is [Auto].
*is item is not availabl e when the Primary Graphic Adapter is set to [Onboard VGA] or [Onboard Hdmi] .
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VT-d
Intel Virtualization Technology for Directed I/O helps your virtual machine monitor bet-
ter utilize hardware by improving application compatibility and reliability, and providing
additional levels of manageabilit y, security, isolation, and I/O performance.
PCIe Hot Plug
Use this item to enable or disable PCIe Hot Plug globally.
PCIE1 Link Width
is allows you to select PCIE1 Link Width. e default value is [x16].
PCIE1 Link Speed
is allows you to select PCIE Link Speed. e default value is [Auto].
PCIE1 ASPM Support
is option enables or disables the ASPM support for all CPU downstream devices.
PCIE3/PCIE2 Link Width
is allows you to select PCIE3/PCIE2 Link Width. e default value is [x16].
PCIE3/PCIE2 Link Speed
is allows you to select PCIE Link Speed. e default value is [Auto].
PCIE3/PCIE2 ASPM Support
is option enables or disables the ASPM support for all CPU downstream devices.
PCIE5/PCIE4 Link Width
is allows you to select PCIE5/PCIE4 Link Width. e default value is [x16].
PCIE5/PCIE4 Link Speed
is allows you to select PCIE Link Speed. e default value is [Auto].
PCIE5/PCIE4 ASPM Support
is option enables or disables the ASPM support for all CPU downstream devices.
PCIE7/PCIE6 Link Width
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is allows you to select PCIE7/PCIE6 Link Width. e default value is [x16].
PCIE7/PCIE6 Link Speed
is allows you to select PCIE Link Speed. e default value is [Auto].
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PCIE7/PCIE6 ASPM Support
is option enables or disables the ASPM support for all CPU downstream devices.
SR-IOV Support
If system has SR-IOV capable PCIe Devices, this option Enables or Disables Single Root IO
Virtualization Support.
Restore AC Power Loss
Select the power state aer a power failure. If [Power O] is selected, the power will remain
o when the power recovers. If [Power On] is selected, the system will start to boot up
when the power recovers.
Restore AC Power Current State
is allows you to restore AC Power Current State
C621A WS
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3.3.4 Storage Conguration
SATA Controller
Use this item to enable or disable SATA Controllers.
SATA Mode Selection
Identify the SATA port is connected to Solid State Drive or Hard Disk Drive. Press
<Ctrl+I> to enter RAID ROM during UEFI POST process.
SATA ALPM
Use this item to enable or disable Aggressive Link Power Management.
sSATA Controller
Use this item to enable or disable SATA Controllers.
sSATA/M.2_SATA Mode Selection
Identify the SATA/M.2_SATA port is connected to Solid State Drive or Hard Disk Drive.
Press <Ctrl+I> to enter RAID ROM during UEFI POST process.
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sSATA ALPM
Use this item to enable or disable Aggressive Link Power Management.
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3.3.5 ACPI Conguration
PCIE Devices Power On
Allow the system to be waked up by a PCIE device and enable wake on LAN.
C621A WS
Ring-In Power On
Use this item to enable or disable Ring-In signals to turn on the system from the power-
so-o mode.
RTC Alarm Power On
Use this item to enable or disable RTC (Rea l Time Clock) to power on the system.
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3.3.6 USB Conguration
Legacy USB Support
Use this option to enable or disable legacy support for USB devices. e default value is
[Enabled].
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3.3.7 Super IO Conguration
Serial Port 1 Conguration
Use this item to set parameters of Serial Port 1 (COM1).
C621A WS
Serial Port
Use this item to enable or disable the serial port.
Change Settings
Use this item to select an optimal setting for Super IO device.
SOL Conguration
Use this item to set parameters of SOL.
SOL Port
Use this item to set parameters of SOL.
Change Settings
Use this item to select an optimal setting for Super IO device.
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3.3.8 Serial Port Console Redirection
COM1 / SOL
Console Redirection
Use this option to enable or disable Console Redirection. If this item is set to Enabled, you
can select a COM Port to be used for Console Redirection.
Console Redirection Settings
Use this option to congure Console Redirection Settings, and specify how your computer
and the host computer to which you are connected exchange information. Both computers
should have the same or compatible settings.
Terminal Type
Use this item to select the preferred terminal emulation type for out-of-band management.
It is recommended to select [VT-UTF8].
OptionDescription
English
5455
VT10 0ASCII character set
VT10 0+Extended VT100 that supports color and function keys
VT-U TF8 UTF8 encoding is used to map Unicode chars onto 1 or more by tes
ANSIExtended ASCII character set
Bits Per Second
Use this item to select the serial por t transmission speed. T he speed used in the host
computer and the client computer must be the same. Long or noisy lines may require lower
transmission speed. e options include [9600], [19200], [38400], [57600] and [115200].
Data Bits
Use this item to set the data transmission size. e options include [7] and [8] (Bits).
Parity
Use this item to select the parity bit. e options include [None], [Even], [Odd], [Mark] and
[Space].
Stop Bits
e item indicates the end of a serial data packet. e standard setting is [1] Stop Bit. Select
[2] Stop Bits for slower devices.
Flow Control
Use this item to set t he f low control to prevent data loss from buf fer overflow. When
sending data, if the receiving buers are full, a "stop" signal can be sent to stop the data
ow. Once the buers are empty, a "start" signal can be sent to restart the ow. Hardware
ow uses two wires to send start/stop signals. e options include [None] and [Hardware
RTS/CTS].
VT-UTF8 Combo Key Support
Use this item to enable or disable the VT-UTF8 Combo Key Support for ANSI/VT100
terminals.
Recorder Mode
Use this item to enable or disable Recorder Mode to capture terminal data and send it as
text messages.
Resolution 100x31
Use this item to enable or disable extended terminal resolution support.
Putty Keypad
Use this item to select Function Key and Keypad on Putty.
C621A WS
Legacy Console Redirection
Legacy Console Redirection Settings
Use this option to congure Legacy Console Redirection Settings, and specify how your
computer and the host computer to which you are connected exchange information.
Redirection COM Port
Select a COM port to display redirection of Legacy OS and Legacy OPROM Messages.
Resolution
On Legacy OS, the Number of Rows and Columns supported redirection.
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Redirect Aer POST
When Bootloader is selected, then Legacy Console Redirection is disabled before booting
to legacy OS. When Always Enable is selected, then Legacy Console Redirection is enabled
for legacy OS. Default setting for this option is set to Always Enable.
Serial Port for Out-of-Band Management/Windows Emergency
Management Services (EMS)
Console Redirection
Use this option to enable or disable Console Redirection. If this item is set to Enabled, you
can select a COM Port to be used for Console Redirection.
Console Redirection Settings
Use this option to congure Console Redirection Settings, and specify how your computer
and the host computer to which you are connected exchange information.
Out-of-Band Mgmt Port
Microsof t Windows Emergency Management Services (EMS) allows for remote
management of a Windows Ser ver OS through a serial port.
Terminal Type EMS
Use this item to select the preferred terminal emulation type for out-of-band management.
It is recommended to select [VT-UTF8].
OptionDescription
VT10 0ASCII character set
VT10 0+Extended VT100 that supports color and function keys
VT-U TF8 UTF8 encoding is used to map Unicode chars onto 1 or more by tes
ANSIExtended ASCII character set
Bits Per Second EMS
Use this item to select the seria l port t ra nsmission speed . The speed used in the host
computer and the client computer must be the same. Long or noisy lines may require lower
transmission speed. e options include [9600], [19200], [57600] and [115200].
Flow Control EMS
Use this item to set the flow control to prevent dat a loss from buffer overf low. When
sending data, if the receiving buers are full, a "stop" signal can be sent to stop the data
ow. Once the buers are empty, a "start" signal can be sent to restart the ow. Hardware
ow uses two wires to send start/stop signals. e options include [None], [Hardware RTS/
CTS], and [Soware Xon/Xo].
Data Bits EMS
Parity EMS
Stop Bits EMS
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3.3.9 H/W Monitor
In this section, it allows you to monitor the status of the hardware on your system, includ-
ing the parameters of t he CPU temperature, motherboard temperature, CPU fan speed,
chassis fan speed, and the critical voltage.
C621A WS
Watch Dog Timer
is allows you to enable or disable the Watch Dog Timer. e default value is [Auto].
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3.3.10 Runtime Error Logging
WHEA Support
Use this item to enable or disable Windows Hardware Error Architecture.
System Error
Use this item to enable or disable System Error feature. When it is set to [Enabled], you can
congure Memory Error and PCIE Error log features.
S/W Error Injection Support
When it is set to [Enabled], S/W Error Injection is supported by unlocking MSR Ox790.
Memory Error
Memory enabling and logging setup option.
Correctable Error Threshold
Correctable Error reshold (0 - 0x7FFF) used for sparing, tagging, and leaky bucket.
PCIE Corrected Error Enable
English
Use this item to enable or disable PCIe Correctable errors.
PCIE Corrected Error Threshold
PCIE Correc table Error Threshold (0x01- 0xFF) used for sparing, tagging, and le aky
bucket.
5859
PCIE Uncorrected Error Enable
Use this item to enable or disable PCIe Uncorrectable errors.
PCIE Fatal Error Enable
Use this item to enable or disable PCIe Ftal errors.
C621A WS
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3.3.11 Intel SPS Conguration
SPS sc ree n dis plays t h e Intel SPS C onfig urat ion inform ati on , suc h as Op era tiona l
Firmware Version and Firmware State.
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3.3.12 Intel® VMD technology
Press <Enter> to bring up the Intel(R) VMD for Volume Management Device
Conguration menu.
C621A WS
Intel(R) VMD for Volume Management Device on Socket 0
Intel(R) VMD for Volume Management Device Technology
Use this item to enable or disable Intel(R) Volume Management Device Technology in this
Stack.
When [Enabled], users are allowed to congure the options below.
VMD port 1A
Use this item to enable or disable Intel(R) Volume Management Dev ice Technology on
specic root port.
VMD port 1C
Use this item to enable or disable Intel(R) Volume Management Dev ice Technology on
specic root port.
VMD port 1D
Use this item to enable or disable Intel(R) Volume Management Dev ice Technology on
specic root port.
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Hot Plug Capable
Enable/Disable Hot Plug for PCIe Root Ports 1A-1D.
Intel(R) VMD for Volume Management Device Technology
Use this item to enable or disable Intel(R) Volume Management Device Technology in this
Stack.
When [Enabled], users are allowed to congure the options below.
VMD port 2A
Use this item to enable or disable Intel(R) Volume Management Device Technolog y on
specic root port.
VMD port 2B
Use this item to enable or disable Intel(R) Volume Management Device Technolog y on
specic root port.
VMD port 2C
Use this item to enable or disable Intel(R) Volume Management Device Technolog y on
specic root port.
VMD port 2D
Use this item to enable or disable Intel(R) Volume Management Device Technolog y on
specic root port.
Hot Plug Capable
Enable/Disable Hot Plug for PCIe Root Ports 2A-2D.
Intel(R) VMD for Volume Management Device Technology
Use this item to enable or disable Intel(R) Volume Management Device Technology in this
Stack.
When [Enabled], users are allowed to congure the options below.
VMD port 3A
Use this item to enable or disable Intel(R) Volume Management Device Technolog y on
specic root port.
VMD port 3B
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Use this item to enable or disable Intel(R) Volume Management Device Technolog y on
specic root port.
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VMD port 3C
Use this item to enable or disable Intel(R) Volume Management Dev ice Technology on
specic root port.
VMD port 3D
Use this item to enable or disable Intel(R) Volume Management Dev ice Technology on
specic root port.
Hot Plug Capable
Use this item to enable or disable Hot Plug for PCIe Root Ports 3A-3D.
Intel(R) VMD for Volume Management Device Technology
Use this item to enable or disable Intel(R) Volume Management Device Technology in this
Stack.
When [Enabled], users are allowed to congure the options below.
VMD port 4A
Use this item to enable or disable Intel(R) Volume Management Dev ice Technology on
specic root port.
VMD port 4B
Use this item to enable or disable Intel(R) Volume Management Dev ice Technology on
specic root port.
C621A WS
VMD port 4C
Use this item to enable or disable Intel(R) Volume Management Dev ice Technology on
specic root port.
VMD port 4D
Use this item to enable or disable Intel(R) Volume Management Dev ice Technology on
specic root port.
Hot Plug Capable
Use this item to enable or disable Hot Plug for PCIe Root Ports 4A-4D.
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3.3.13 Tls Auth Conguration
Server CA Conguration
Press <Enter> to congure Server CA.
Client Cert Conguration
Press <Enter> to congure Client Cert.
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3.3.14 Instant Flash
Instant Flash is a UEFI ash utility embedded in Flash ROM. is convenient UEFI
update tool allows you to update system UEFI without entering operating systems
rst like MS-DOS or Windows®. Just save the new UEFI le to your USB ash drive,
oppy disk or hard drive and launch this tool, then you can update your UEFI only
in a few clicks without preparing an additional oppy diskette or other compli-
cated ash utility. Please be noted that the USB ash drive or hard drive must use
FAT32/16/12 le system. If you execute Instant Flash utility, the utility will show the
UEFI les and their respective information. Select the proper UEFI le to update
your UEFI, and reboot your system aer the UEFI update process is completed.
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3.4 Security
In this section, you may set or change the supervisor/user password for the system. For the
user password, you may also clear it.
Supervisor Password
Set or change the password for the administrator account. Only the administrator
has authority to change the settings in the UEFI Setup Utility. Leave it blank and
press enter to remove the password.
User Password
Set or change the password for the user account. Users are unable to change the
settings in the UEFI Setup Utility. Leave it blank and press enter to remove the
password.
Secure Boot
Use this to enable or disable Secure Boot Control. e default value is [Disabled].
Enable to support Windows Server 2012 R2 or later versions Secure Boot.
In this section, expert users can modify Secure Boot Policy variables without full authenti-
cation.
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Factory Key Provision
Install factory default Secure Boot keys aer the platform reset and while the System
is in Setup mode.
Install Default Secure Boot Keys
Please install default secure boot keys if it’s the rst time you use secure boot.
Enroll E Image
Allow the image to run in Secure Boot mode. Enroll SHA256 hash of the binary into
Authorized Signature Database (db).
Restore DB defaults
Restore DB variable to factory defaults.
Platform Key(PK)
Enroll Factory Defaults or load certicates from a le:
1. Public Key Certicate in:
a) EF I_SIGNATU R E _LIST
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b) EFI_CERT_X509 (DER)
c) EFI_CERT_RSA2048 (bin)
d) EFI_CERT_SHAXXX
2. Authenticated UEFI Variable
3. EFI PE/COFF Image(SHA256)
Key Source: Default, External, Mixed
Key Exchange Keys
Enroll Factory Defaults or load certicates from a le:
1. Public Key Certicate in:
a) EF I_SIGNATU R E _LIST
b) EFI_CERT_X509 (DER)
c) EFI_CERT_RSA2048 (bin)
d) EFI_CERT_SHAXXX
2. Authenticated UEFI Variable
3. EFI PE/COFF Image(SHA256)
Key Source: Default, External, Mixed
Key Source: Default, External, Mixed, Test
Authorized Signatures
Enroll Factory Defaults or load certicates from a le:
1. Public Key Certicate in:
a) EF I_SIGNATU R E _LIST
b) EFI_CERT_X509 (DER)
c) EFI_CERT_RSA2048 (bin)
d) EFI_CERT_SHAXXX
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2. Authenticated UEFI Variable
3. EFI PE/COFF Image(SHA256)
Key Source: Default, External, Mixed
Forbidden Signatures
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Enroll Factory Defaults or load certicates from a le:
1. Public Key Certicate in:
a) EF I_SIGNATU R E _LIST
b) EFI_CERT_X509 (DER)
c) EFI_CERT_RSA2048 (bin)
d) EFI_CERT_SHAXXX
2. Authenticated UEFI Variable
3. EFI PE/COFF Image(SHA256)
Key Source: Default, External, Mixed
Authorized TimeStamps
Enroll Factory Defaults or load certicates from a le:
1. Public Key Certicate in:
a) EF I_SIGNATU R E _LIST
b) EFI_CERT_X509 (DER)
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c) EFI_CERT_RSA2048 (bin)
d) EFI_CERT_SHAXXX
2. Authenticated UEFI Variable
3. EFI PE/COFF Image(SHA256)
Key Source: Default, External, Mixed
OsRecovery Signatures
Enroll Factory Defaults or load certicates from a le:
1. Public Key Certicate in:
a) EF I_SIGNATU R E _LIST
b) EFI_CERT_X509 (DER)
c) EFI_CERT_RSA2048 (bin)
d) EFI_CERT_SHAXXX
2. Authenticated UEFI Variable
3. EFI PE/COFF Image(SHA256)
Key Source: Default, External, Mixed
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3.5 Boot Screen
In this section, it will display the available devices on your system for you to congure the
boot settings and the boot priority.
Boot Option #1
Use this item to set the system boot order.
Boot Option Filter
is option controls Legacy/UEFI ROMs priority.
Boot From Onboard LAN
Use this item to enable or disable the Boot From Onboard LAN feature.
Setup Prompt Timeout
Congure the number of seconds to wait for the UEFI setup utility.
Bootup Num-Lock
If this item is set to [On], it will automatically activate the Numeric Lock function aer
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boot-up.
Boot Beep
Select whether the Boot Beep should be turned on or o when the system boots up. Please
note that a buzzer is needed.
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Full Screen Logo
Use this item to enable or disable OEM Logo. e default value is [Enabled].
AddOn ROM Display
Use this option to adjust AddOn ROM Display. If you enable the option “Full Screen Logo”
but you want to see the AddOn ROM information when the system boots, please select
[Enabled]. Conguration options: [Enabled] and [Disabled]. e default value is [Enabled].
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English
3.5.1 CSM Parameters
CSM
Enable to launch the Compatibility Support Module. Please do not disable unless
you’re running a WHCK test. If you are using Windows 10 64-bit and all of your
devices support UEFI, you may also disable CSM for faster boot speed.
Launch Other Storage OpROM Policy
Select UEFI only to run those that support UEFI option ROM only. Select Legacy only to
run those that support legacy option ROM only. Select Do not launch to not execute both
legacy and UEFI option ROM.
Launch Video OpROM Policy
Select UEFI only to run those that support UEFI option ROM only. Select Legacy only to
run those that support legacy option ROM only. Select Do not launch to not execute both
legacy and UEFI option ROM.
PCIE1 Slot OpROM
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Use this item to select slot storage and Network Option ROM policy. In Auto option, the
default is Disabled with NVMe device, but it is Legacy with other devices. (is item can't
select Video Option ROM policy.)
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PCIE2 Slot OpROM
Use this item to select slot storage and Network Option ROM policy. In Auto option, the
default is Disabled with NVMe device, but it is Legacy with other devices. (is item can't
select Video Option ROM policy.)
SLIM3 Slot OpROM
Use this item to select slot storage and Network Option ROM policy. In Auto option, the
default is Disabled with NVMe device, but it is Legacy with other devices. (is item can't
select Video Option ROM policy.)
SLIM4 Slot OpROM
Use this item to select slot storage and Network Option ROM policy. In Auto option, the
default is Disabled with NVMe device, but it is Legacy with other devices. (is item can't
select Video Option ROM policy.)
SLIM5 Slot OpROM
Use this item to select slot storage and Network Option ROM policy. In Auto option, the
default is Disabled with NVMe device, but it is Legacy with other devices. (is item can't
select Video Option ROM policy.)
PCIE6 Slot OpROM
Use this item to select slot storage and Network Option ROM policy. In Auto option, the
default is Disabled with NVMe device, but it is Legacy with other devices. (is item can't
select Video Option ROM policy.)
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PCIE7 Slot OpROM
Use this item to select slot storage and Network Option ROM policy. In Auto option, the
default is Disabled with NVMe device, but it is Legacy with other devices. (is item can't
select Video Option ROM policy.)
M2_1 Slot OpROM
Use this item to select slot storage and Network Option ROM policy. In Auto option, the
default is Disabled with NVMe device, but it is Legacy with other devices. (is item can't
select Video Option ROM policy.)
M2_2 Slot OpROM
Use this item to select slot storage and Network Option ROM policy. In Auto option, the
default is Disabled with NVMe device, but it is Legacy with other devices. (is item can't
select Video Option ROM policy.)
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3.6 Server Mgmt
Wait For BMC
Wai t Fo r BM C re sponse for s pec ifie d t ime out . BMC star t s at the same t ime w hen
BIOS starts during AC power ON. It takes around 90 seconds to initialize Host to BMC
interfaces.
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3.6.1 System Event Log
SEL Components
Change this to enable ro disable event logging for error/progress codes during boot.
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Erase SEL
Use this to choose options for earsing SEL.
When SEL is Full
Use this to choose options for reactions to a full SEL.
Log EFI Status Codes
Use this item to disable the logging of EFI Status Codes or log only error code or only
progress code or both.
PCIe Device Degrade ELog Support
Use this item to enable or disable PCIe Device Degrade Error Logging Support.
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3.6.2 View System Event Log
Press <Enter> to view the System Event Log Records.
3.6.3 BMC Network Conguration
BMC Out of Band Access
Enabled/Disabled BMC Out of band Access.
Lan Channel (Failover)
Manual Setting IPMI LAN
If [No] is selected, t he IP address is assigned by DHCP. If you prefer using a static IP
address, toggle to [Yes], and the changes take eect aer the system reboots. e default
value is [No].
Conguration Address Source
Select to congure BMC network parameters statically or dynamically(by BIOS or BMC).
Conguration options: [Static] and [DHCP].
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Static: Manually enter the IP Address, Subnet Mask and Gateway Address in the BIOS for
BMC LAN channel conguration.
DHCP: IP address, Subnet Mask and Gateway Address are automatically assigned by the
network 's DHCP server.
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When [DHCP] or [Static] is selected , do NOT modify the BMC network settings on the
IPMI web page.
e default login information for the IPMI web interface is:
Username: admin
Password: admin
For more instructions on how to set up remote control environment and u se the IPMI management platform, please refer to the IPMI Conguration User Guide or go to the Support
website at: http://www.asrockrack.com/support/ipmi.asp
VLAN
IPV6 Support
Enable or Disable LAN1 IPV6 Support.
Manual Setting IPMI LAN(IPV6)
Select to congure LAN channel parameters statically or dynamucally(by BIOS or BMC).
Unspecied option will not modify any BMC network parameters during BIOS phase.
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English
3.6.4 BMC Tools
Load BMC Default Settings
Use this item to load BMC default settings.
KCS control
Select the KSC inter face state after POST end. If [Enabled] is selected, the BMC w ill
remain KCS interface aer POST stage. If [Disabled] is selected, the BMC will disable KCS
interface aer POST stage.
English
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3.7 Event Logs
Change Smbios Event Log Settings
is allows you to congure the Smbios Event Log Settings.
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When entering the item, you will see the followings:
Smbios Event Log
Use this item to enable or disable all features of the SMBIOS Event Logging during system
boot.
Erase Event Log
The options include [No], [Yes, Next reset] and [Yes, Ever y reset]. If Yes is selected, all
logged events will be erased.
When Log is Full
Use this item to choose options for reactions to a fu ll Smbios Event Log. The options
include [Do Nothing] and [Erase Immediately].
Log System Boot Event
Choose option to enable/disable logging of System boot event.
View Smbios Event Log
Press <Enter> to view the Smbios Event Log records.
All values changed here do not take e ect until computer is restar ted.
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3.8 Exit Screen
Save Changes and Exit
When you select this option, the following message “Save conguration changes and exit
setup?” will pop-out. Press <F10> key or select [Yes] to save the changes and exit the UEFI
SETUP UTILITY.
Discard Changes and Exit
When you select this option, the following message “Discard changes and exit setup?” will
pop-out. Press <ESC> key or select [Yes] to exit the UEFI SETUP UTILITY without saving
any changes.
Discard Changes
When you select this option, the following message “Discard changes?” will pop-out. Press
<F7> key or select [Yes] to discard all changes.
Load UEFI Defaults
Load UEFI default values for a ll the setup questions. F9 key can be used for this operation.
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Chapter 4 Software Support
4.1 Install Operating System
is motherboard supports various Microso® Windows® / Linux® compliant. Because
motherboard settings and hardware options vary, use the setup procedures in this chapter
for general reference only. Refer to your OS documentation for more information.
*Please download the Intel® SATA Floppy Image driver from the ASRock R ack’s website (www.asrockrack.com)
to your USB drive or simply install the SATA driver from the Support CD while installing OS in SATA RAID
mode.
* Before installing the Linux OS, please rst enter the BIOS settings, go to “Advance d” > “Chipset Congura-
tion” and set “IGPU Multi-Monitor” option to “Disabled”.
4.2 Support CD Information
e Support CD that came with the motherboard contains necessary drivers and useful
utilities that enhance the motherboard’s features.
4.2.1 Running The Support CD
To be g in usi n g t he su ppor t C D, i n s ert the C D i nto y our CD -ROM driv e. The C D
automatically displays the Main Menu if “AUTORUN” is enabled in your computer. If the
Main Menu does not appear automatically, locate and double click on the le “ASRSetup.
exe” from the root folder in the Support CD to display the menu.
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4.2.2 Drivers Menu
The Drivers Menu shows the available device’s drivers if the system detec ts insta lled
devices. Please install the necessary drivers to activate the devices.
4.2.3 Utilities Menu
e Utilities Menu shows the application sowares that the motherboard supports. Click
on a specic item then follow the installation wizard to install it.
4.2.4 Contact Information
If you need to contact ASRock Rack or want to know more about ASRock Rack, welcome
to visit ASRock Rack’s website at http://www.ASRockRack.com; or you may contact your
dealer for further information.
English
Chapter 5 Troubleshooting
5.1 Troubleshooting Procedures
Follow the procedures below to troubleshoot your system.
Always unplug the power cord before adding, removing or changing any hardware component s. Failure to do so may c ause physical injurie s to you and damage s to motherboard
components.
1. Disconnect the power cable and check whether the PWR LED is o.
2. Unplug all cables, connectors and remove all add-on cards from the motherboard.
Make sure that the jumpers are set to default settings.
3. Conrm that there are no short circuits between the motherboard and the chassis.
4. Install a CPU and fan on the motherboard, then connect the chassis speaker and power
LED.
If there is no power...
1. Conrm that there are no short circuits between the motherboard and the chassis.
2. Make sure that the jumpers are set to default settings.
3. Check the settings of the 115V/230V switch on the power supply.
4. Verify if the battery on the motherboard provides ~3VDC. Install a new battery if it
does not.
If there is no video...
1. Try replugging the monitor cables and power cord.
2. Check for memory errors.
If there are memory errors...
1. Verify that the DIMM modules are properly seated in the slots.
2. Use recommended DDR4 RDIMM/RDIMM-3DS/LRDIMM/LRDIMM-3DS/
Intel®Optane™ Persistent Memory 200 Series.
3. If you have installed more than one DIMM modules, they should be identical with the
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same brand, speed, size and chip-type.
4. Try inserting dierent DIMM modules into dierent slots to identify faulty ones.
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5. Check the settings of the 115V/230V switch on the power supply.
Unable to save system setup congurations...
1. Verify if the battery on the motherboard provides ~3VDC. Install a new battery if it
does not.
2. Conrm whether your power supply provides adaquate and stable power.
Other problems...
1. Try searching keywords related to your problem on ASRock Rack’s FAQ page:
http://www.asrockrack.com/support
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5.2 Technical Support Procedures
If you have tried the troubleshooting procedures mentioned ab ove a nd t he problems
are still u nsolved, please contact ASRock Rack’s technica l suppor t with t he following
information:
1. Your contact information
2. Model name, BIOS version and problem ty pe.
3. System conguration.
4. Problem description.
You may contact ASRock Rack’s technical support at:
http://www.asrockrack.com/support/tsd.asp
5.3 Returning Merchandise for Service
For w arr ant y ser vice, t he receipt or a co py of your i nvoice marked wit h t he d at e of
purchase is required. By ca lling your vendor or going to our RMA website (http://event.
asrockrack.com/tsd.asp) you may obtain a Returned Merchandise Authorization (RMA)
number.
The R MA number should be displayed on the outside of the shipping car ton which is
mailed prepaid or hand-carried when you return the motherboard to the manufacturer.
Shipping and handling charges will be applied for all orders that must be mailed when
service is complete.
Th is wa rranty does not cover d ama ges i nc urred in s hipping or from fa ilu re due t o
alteration, misuse, abuse or improper maintenance of products.
Contact your distributor rst for any product related problems during the warranty period.
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Contact Information
If you need to contact ASRock or want to know more about ASRock, you’re welcome
to visit ASRock’s website at http://ww w.asrock.com; or you may contact your dealer
for further information. For technical questions, please submit a support request
form at https://event.asrock.com/tsd.asp
ASRock Incorporation
2F., No.37, Sec. 2, Jhongyang S. Rd., Beitou District,
Taipei City 112, Taiwan (R.O.C.)
ASRock EUROPE B.V.
Bijsterhuizen 11-11
6546 AR Nijmegen
e Netherlands
Phone: +31-24-345-44-33
Fax: +31-24-345-44-38
ASRock America, Inc.
13848 Magnolia Ave, Chino, CA91710
U.S.A.
Phone: +1-909-590-8308
Fax: +1-909-590-1026
DECLARATION OF CONFORMITY
Responsible Party Name:
Phone/FaxNo:
hereby declares that the product
Product Name : Motherboard
Per FCC Part 2 Section 2.1077(a)
ASRock Incorporation
Address:
13848 Magnolia Ave, Chino, CA91710
+1-909-590-8308/+1-909-590-1026
Model Number :
Conforms to the following specications:
FCC Part 15, Subpart B, Unintentional Radiators
Supplementary Information:
C621A WS
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.
Jason
Representative Person’s Name:
Signature :
Date :
May 12, 2017
EU Declaration of Conformity
EMC —Directive 2014/30/EU (from April 20th, 2016)
ڛ
☐
For the following equipment:
Motherboard
(Product Name)
C621A WS / 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)
☐ EN 55022:2010/AC:2011 Class B EN 55024:2010/A1:2015
ڛ EN 55032:2012+AC:2013 Class B ڛڛ EN 61000-3-3:2013
ڛ EN 61000-3-2:2014
☐
LVD —Directive 2014/35/EU (from April 20th, 2016)
EN 60950-1 : 2011+ A2: 2013 ☐
ڛ RoHS — Directive 2011/65/EU
ڛ CE marking
EN 60950-1 : 2006/A12: 2011
(EU conformity marking)
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)
August 22, 2021
(Date)
P/N: 15G062313000AK V1.0
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