ASROCK EPC621D8A User manual

EPC621D8A
User Manual
Version 1.0
Published October 2017
Copyright©2017 ASRock Rack INC. All rights reserved.

Version 1.0
Published October 2017
Copyright©2017 ASRock Rack Inc. All rights reserved.
Copyright Notice:
No part of this documentation may be reproduced, transcribed, transmitted, or
translated in any language, in any form or by any means, except duplication of
documentation by the purchaser for backup purpose, without written consent of
ASRock Rack Inc.
Products and corporate names appearing in this documentation may or may not
be registered trademarks or copyrights of their respective companies, and are used
only for identication or explanation and to the owners’ benet, without intent to
infringe.
Disclaimer:
Specications and information contained in this documentation are furnished
for informational use only and subject to change without notice, and should not
be constructed as a commitment by ASRock Rack. ASRock Rack assumes no
responsibility for any errors or omissions that may appear in this documentation.
With respect to the contents of this documentation, ASRock Rack 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 Rack, its directors, ocers, employees, or agents be liable
for any indirect, special, incidental, or consequential damages (including damages
for loss of prots, loss of business, loss of data, interruption of business and the
like), even if ASRock Rack has been advised of the possibility of such damages
arising from any defect or error in the documentation or product.
is device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that
may cause undesired operation.
CALIFORNIA, USA ONLY
e Lithium battery adopted on this motherboard contains Perchlorate, a toxic substance
controlled in Perchlorate Best Management Practices (BMP) regulations passed by the
California Legislature. When you discard the Lithium battery in California, USA, please
follow the related regulations in advance.
“Perchlorate Material-special handling may apply, see www.dtsc.ca.gov/hazardouswaste/
perchlorate”
ASRock Rack’s Website: www.ASRockRack.com

Contact Information
If you need to contact ASRock Rack or want to know more about ASRock Rack,
you’re welcome to visit ASRock Rack’s website at www.ASRockRack.com; or you
may contact your dealer for further information.
ASRock Rack Incorporation
6F., No.37, Sec. 2, Jhongyang S. Rd., Beitou District,
Taipei City 112, Taiwan (R.O.C.)

Contents
Chapter 1 Introduction 1
1.1 Package Contents 1
1.2 Specications 2
1.3 Unique Features 5
1.4 Motherboard Layout 6
1.5 Onboard LED Indicators 9
1.6 I/O Panel 10
1.7 Block Diagram 12
Chapter 2 Installation 13
2.1 Screw Holes 13
2.2 Pre-installation Precautions 13
2.3 Installing the CPU and Heatsink 14
2.4 Installation of Memory Modules (DIMM) 18
2.5 Expansion Slots (PCI Express Slots) 20
2.6 Jumper Setup 21
2.7 Onboard Headers and Connectors 24
2.8 Unit Identication purpose LED/Switch 31
2.9 Driver Installation Guide 31
2.10 M.2_SSD (NGFF) Module Installation Guide 32
Chapter 3 UEFI Setup Utility 34
3.1 Introduction 34
3.1.1 UEFI Menu Bar 34
3.1.2 Navigation Keys 35

3.2 Main Screen 36
3.3 Advanced Screen 37
3.3.1 CPU Conguration 38
3.3.2 DRAM Conguration 41
3.3.3 Chipset Conguration 43
3.3.4 Storage Conguration 46
3.3.5 NVME Conguration 48
3.3.6 ACPI Conguration 49
3.3.7 USB Conguration 51
3.3.8 Super IO Conguration 52
3.3.9 Serial Port Console Redirection 53
3.3.10 H/W Monitor 56
3.3.11 Runtime Error Logging 58
3.3.12 Intel ME Conguration 60
3.3.13 Intel® VMD technology 61
3.3.14 Intel® Virtual RAID on CPU 64
3.3.15 Instant Flash 67
3.4 Security 68
3.4.1 Key Management 69
3.5 Boot Screen 72
3.5.1 CSM Parameters 74
3.6 Event Logs 76
3.7 Server Mgmt 78
3.7.1 System Event Log 79

3.7.2 BMC Network Conguration 80
3.8 Exit Screen 82
Chapter 4 Software Support 83
4.1 Install Operating System 83
4.2 Support CD Information 83
4.2.1 Running The Support CD 83
4.2.2 Drivers Menu 83
4.2.3 Utilities Menu 83
4.2.4 Contact Information 83
Chapter 5 Troubleshooting 84
5.1 Troubleshooting Procedures 84
5.2 Technical Support Procedures 86
5.3 Returning Merchandise for Service 86

EPC621D8A
PB 1
English
Chapter 1 Introduction
ank you for purchasing ASRock Rack EPC621D8A motherboard, a reliable
motherboard produced under ASRock Rack’s consistently stringent quality control.
It delivers excellent performance with robust design conforming to ASRock Rack’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 conguration
guide to BIOS setup and information of the Support CD.
1.1 Package Contents
• ASRock Rack EPC621D8A Motherboard
(ATX Form Factor: 12.0-in x 9.6-in, 30.5 cm x 24.4 cm)
• Support CD
• User Manual
• 4 x SATA3 cables (50cm)
• 2 x SATA3 cables (60cm)
• 1 x Mini SAS HD to 4 SAS/SATA Cable (12G)
• 2 x Screws for M.2 Sockets
• 1 x I/O Shield
If any items are missing or appear damaged, contact your authorized dealer.
Because the motherboard specications and the BIOS soware might be updated, the con-
tent of this manual will be subject to change without notice. In case any modications of
this manual occur, the updated version will be available on ASRock Rack website without
further notice. You may nd the latest memory and CPU support lists on ASRock Rack
website as well. ASRock Rack’s Website: www.ASRockRack.com
If you require technical support related to this motherboard, please visit our website for
specic information about the model you are using.
http://www.asrockrack.com/support/

2 3
English
1.2 Specications
EPC621D8A
MB Physical Status
Form Factor ATX
Dimension 12'' x 9.6'' (30.5 cm x 24.4 cm)
Processor System
CPU Intel® Xeon® Scalable Processors (Max 205W)
Socket Single Socket P (3647)
Chipset Intel® C621
System Memory
Capacity 8 DIMM slots
Type - Six Channel Memory Technology
- Support DDR4 2666/2400 RDIMM & LR DIMM
Voltage 1.2V
Expansion Slot
PCIe 3.0 x 16 2 slots (Slot4: share with slot3, x16/x8, Slot6: share with Slot5,
x16/x8)
PCIe 3.0 x 8 3 slots (Slot2: x8, Slot3: share with Slot3, x0/x8, Slot5: share
with slot6, x0/x8)
PCIe 3.0 x 4 1 slot
Storage
SATA
Controller
Intel®C621 : 13x SATA3 (including 1 SATA DOM port and 2
M.2 ports)
Ethernet
Interface 1000 Mbps
LAN Controller 4 x RJ45 by Marvell 88E1543 for 4 ports GbE
Management
BMC Controller ASPEED AST2500
IPMI Dedicated
GLAN
1 x Realtek RTL8211E for dedicated management GLAN
Features - Watch Dog
- NMI
Gracphics
Controller ASPEED AST2500
VRAM DDR4 256MB
Audio
Audio code Realtek ALC1150

EPC621D8A
2 3
English
Rear Panel I/O
VGA Port 1 x D-Sub
Serial Port 1 x COM port
USB 3.0 Port 4
LAN Port - 4+1(IPMI) RJ45 Gigabit Ethernet LAN port
- LAN Ports with LED (ACT/LINK LED and SPEED LED)
Audio Jack 3 hole
Internal Connector
Auxiliary Panel
Header
1 (includes chassis intrusion, location button & LED, front
LAN LED)
TPM Header 1
IPMB Header 1
Fan Header 1x CPU Fan, 4x System Fans (3 front, 1 rear)
ATX Power 1 (24-pin) + 1 (8-pin)
USB 3.0 Header 2 (support 4 ports USB 3.0)
M.2 2 (up to 2280, SATA and PCIe x1)
Type A USB 3.0
Port
1
SATA DOM 1
System BIOS
BIOS Ty pe 32MB AMI UEFI Legal BIOS
BIOS Features - Plug and Play (PnP)
- ACPI 2.0 Compliance Wake Up Events
- SMBIOS 2.8 Support
- ASRock Rack Instant Flash
Hardware Monitor
Temperature - CPU Temperature Sensing
- System Temperature Sensing
Fan - CPU/Rear/Front Fan Tachometer
- CPU Quiet Fan (Allow Chassis Fan Speed Auto-Adjust by
CPU Temperature)
- CPU/Rear/Front Fan Multi-Speed Control
Voltage Voltage Monitoring: +12V, +5V, +3.3V, CPU Vcore, DRAM,
1.05V_PCH, +BAT, 3VSB, 5VSB

4 5
English
Support OS
OS Microso® Windows®
- Windows 10 (64 bit)
- Server 2012 R2 (64 bit)
- Server 2016 (64 bit)
Linux®
- CentOS 6.8 (64 bit) / 7. 2 (64 bit)
- SUSE Enterprise Linux Server 11 SP4 (64 bit) /12 SP1 (64 bit)
- FreeBSD 11 (64 bit)
- Fedora Core 24 (64 bit)
- Ubuntu 16.04/15.10 (64 bit)
- RedHat Enterprise Linux Server 6.8 (64 bit) / 7.2 (64 bit)
Virtual:
- VMWare ESXi 6.0
* Please refer to our website for the latest OS support list.
Environment
Temperature Operation temperature: 10°C ~ 35°C / Non operation
temperature: -40°C ~ 70°C
NOTE: Please refer to our website for the latest specications.
is motherboard supports Wake from on Board LAN. To use this function, please make
sure that the “Wake on Magic Packet from power o state” is enabled in Device Manager
> Intel® Ethernet Connection > Power Management. And the “PCI Devices Power On” is
enabled in UEFI SETUP UTILITY > Advanced > ACPI Conguration. Aer that, onboard
LAN1&2 can wake up S5 under OS.
If you install Intel® LAN utility or Marvell SATA utility, this motherboard may fail Win-
dows® Hardware Quality Lab (WHQL) certication tests. If you install the drivers only, it
will pass the WHQL tests.

EPC621D8A
4 5
English
1.3 Unique Features
ASRock Instant Flash is a BIOS ash utility embedded in Flash ROM. is conve-
nient BIOS update tool allows you to update system BIOS without entering operating
systems rst like Windows®. With this utility, you can press the <F6> key during the
POST or the <F2> key to enter into the BIOS setup menu to access ASRock Rack
Instant Flash. Just launch this tool and save the new BIOS le to your USB ash drive,
oppy disk or hard drive, then you can update your BIOS only in a few clicks without
preparing an additional oppy diskette or other complicated ash utility. Please be
noted that the USB ash drive or hard drive must use FAT32/16/12 le system.

6 7
English
1.4 Motherboard Layout
24.4cm (9.6 in)
30.5cm (12.0 in)
ATXPWR1
12 3
VGA1
COM1
USB 3.0
T: USB3_2
B: USB3_1
LAN1 LAN2
DDR4_F1 (64 bit, 288-pin module)
DDR4_E1 (64 bit, 288-pin module)
DDR4_D1 (64 bit, 288-pin module)
DDR4_D2 (64 bit, 288-pin module)
DDR4_A2 (64 bit, 288-pin module)
DDR4_A1 (64 bit, 288-pin module)
DDR4_B1 (64 bit, 288-pin module)
DDR4_C1 (64 bit, 288-pin module)
ATX12V1
Top:
LINE IN
Center:
FRONT
Bottom:
MIC IN
AUDIO1
PCIE3
PCIE5
PCIE6
PCIE4
1
PSU_SMB1
SATA_SGPIO1
1
SATA_SGPIO2
1
USB3_9
HD_AUDIO1
1
CMOS
Battery
RoHS
EPC621D8A
456 89 10 12
13
333435
14
15
16
3738394041 36
7
32
17
Intel
C621
BIOS
ROM
BMC
AEP_1
FRNT_FAN1
REAR_FAN1
USB 3.0
T: USB2
B: USB1
IPMI_LAN
LAN3 LAN4
UID1
PCIE2
PCIE1
FRNT_FAN3
HDLED RESET
PLED PWRBTN
PANEL1
1
1
AUX_PANEL1
11
1
TPM1
1
BMC_SMB_1
IPMB_1
CHASSIS_ID2
CHASSIS_ID1
1
SPEAKER
NMI_BTN1
1
1 1 1
FRNT_FAN2
CPU1_FAN1
1
FRONT_LED_LAN34
PECI1
T 1
R
USB3_7_8 USB3_5_6
1
SSATA_SGPIO1
SATA_0_3
SATA_4
(RED)
1
SATAPWR1
SSATA_4
SSATA_5
SSATA_2
SSATA_3
SSATA_0
SSATA_1
M2_1
NUT30NUT42NUT60
NUT80
M2_2
NUT30_2NUT42_2NUT60_2
NUT80_2
19
20
21
22
24
25
26
28
30
27
29
23
31
4243
44
45
1
PMBUS_SEL_DAT1
1 1
PMBUS_SEL_CLK1
CHASSIS_ID0
1
PMBUS_SEL_ALT1
1
11
46
AEP_2
1
18
CPU1

EPC621D8A
6 7
English
No. Description
1 ATX Power Connector (ATXPWR1)
2 Rear Fan Connector (REAR_FAN1)
3PSU SMBus (PSU_SMB1)
4 CPU PECI Jumper (PECI1)
5PMBUS Mode Jumper (PMBUS_SEL_ALT1)
6 Chassis ID0 Jumper (CHASSIS_ID0)
7 Chassis ID1 Jumper (CHASSIS_ID1)
8 Chassis ID2 Jumper (CHASSIS_ID2)
9PMBUS Mode Jumper (PMBUS_SEL_CLK1)
10 Non Maskable Interrupt Button (NMI_BTN1)
11 Front Fan Connector (FRNT_FAN1)
12 Support NVDIMM Jumer (AEP_1)
13 3 x 288-pin DDR4 DIMM Slots (DDR4_A1, DDR4_B1, DDR4_C1, Blue)
14 1 x 288-pin DDR4 DIMM Slot (DDR4_A2, White)
15 1 x 288-pin DDR4 DIMM Slot (DDR4_D2, White)
16 3 x 288-pin DDR4 DIMM Slots (DDR4_D1, DDR4_E1, DDR4_F1, Blue)
17 ATX 12V Power Connector (ATX12V1)
18 Support NVDIMM Jumer (AEP_2)
19 Front Fan Connector (FRNT_FAN2)
20 SATA SGPIO Connector (SSATA_SGPIO1)
21 SATA2 Connector (SSATA_1)
22 SATA2 Connector (SSATA_0)
23 SATA2 Connector (SSATA_3)
24 SATA2 Connector (SSATA_2)
25 SATA2 Connector (SSATA_5)
26 SATA2 Connector (SSATA_4)
27 SATA DOM Power Jumper (SATAPWR1)
28 MINI-SAS HD Connector (SATA_0_3)
29 SATA SGPIO Connector (SATA_SGPIO1)
30 SATA SGPIO Connector (SATA_SGPIO2)
31 Front Fan Connector (FRNT_FAN3)
32 Vertical Type A USB 3.0 (USB3_9)
33 SATA3 DOM Connector (SATA_4), Red

8 9
English
No. Description
34 USB 3.0 Header (USB3_5_6)
35 USB 3.0 Header (USB3_7_8)
36 System Panel Header (PANEL1)
37 Intelligent Platform Management Bus header (IPMB_1)
38 BMC SMBus Header (BMC_SMB_1)
39 TPM Header (TPM1)
40 Auxiliary Panel Header (AUX_PANEL1)
41 Speaker Header (SPEAKER1)
42 ermal Sensor header (TR1)
43 Front Panel Audio Header (HD_AUDIO1)
44 CPU Fan Connector (CPU1_FAN1)
45 Front LAN LED Connector (FRONT_LED_LAN34)
46 PMBUS Mode Jumper (PMBUS_SEL_DAT1)

EPC621D8A
8 9
English
1.5 Onboard LED Indicators
ATXPWR1
VGA1 COM1
USB 3.0
T: USB3_2
B: USB3_1
LAN1 LAN2
DDR4_F1 (64 bit, 288-pin module)
DDR4_E1 (64 bit, 288-pin module)
DDR4_D1 (64 bit, 288-pin module)
DDR4_D2 (64 bit, 288-pin module)
DDR4_A2 (64 bit, 288-pin module)
DDR4_A1 (64 bit, 288-pin module)
DDR4_B1 (64 bit, 288-pin module)
DDR4_C1 (64 bit, 288-pin module)
Top:
LINE IN
Center:
FRONT
Bottom:
MIC IN
PCIE3
PCIE5
PCIE6
PCIE4
1
1
1
USB3_9
1
RoHS
EPC621D8A
Intel
C621
BIOS
ROM
BMC
FRNT_FAN1
USB 3.0
T: USB2
B: USB1
IPMI_LAN
LAN3 LAN4
UID1
PCIE2
PCIE1
FRNT_FAN3
1
1
11
1
1
IPMB_1
1
1
1 1 1
FRNT_FAN2
1
1
(RED)
1
M2_1
NUT30NUT42NUT60
NUT80
M2_2
NUT30_2NUT42_2NUT60_2
NUT80_2
1
1 1
1
CPU1
1
SB_PWR1
BMC_LED1
2 3
4
5
6
7
1
1
REAR_FAN1
No. Status Description
1Green STB PWR ready
2Amber REAR_FAN1 failed
3Amber FRNT_FAN1 failed
4Amber FRNT_FAN2 failed
5Amber FRNT_FAN3 failed
6Green BMC heartbeat LED
7Amber CPU1_FAN1 failed

10 11
English
3
4
1
2
5
6
7
8
9 10 11
12
13
1.6 I/O Panel
No. Description No. Description
1 LAN RJ-45 Port (IPMI_LAN)** 8 LAN RJ-45 Port (LAN4)*
2 USB 3.0 Ports (USB3_1_2) 9 UID Switch (UID1)
3VGA Port (VGA1) 10 USB 3.0 Ports (USB3_3_4)
4 Serial Port (COM1) 11 Line In (Light Blue)
5 LAN RJ-45 Port (LAN1)* 12 Front Speaker (Lime)
6 LAN RJ-45 Port (LAN2)* 13 Microphone (Pink)
7 LAN RJ-45 Port (LAN3)*
LAN Port LED Indications
*ere are two LED next to the LAN port. Please refer to the table below for the LAN port
LED indications.
Dedicated IPMI LAN Port LED Indications
Activity / Link LED Speed LED
Status Description Status Description
O No Link O 10Mbps connection
Blinking Data Activity Orange 100Mbps connection
On 100Mbps connection Green 1Gbps connection
ACT/LINK LED
SPEED LED
LAN Port

EPC621D8A
10 11
English
**ere are two LEDs on each LAN port. Please refer to the table below for the LAN port
LED indications.
LAN Port (LAN1, LAN2, LAN3, LAN4) LED Indications
Activity / Speed LED
Status Description
O No Link
Solid Green Link Up (1Gbps connection)
Blinking Green Data Activity
ACT/SPEED LED
LAN Port

12 13
English
1.7 Block Diagram





















































EPC621D8A
12 13
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 conguration of your chassis to ensure that the motherboard
ts into it.
2.1 Screw Holes
Place screws into the holes indicated by circles to secure the motherboard to the chassis.
2.2 Pre-installation Precautions
Take note of the following precautions before you install 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.
Make sure to unplug the power cord before installing or removing the motherboard. Failure
to do so may cause physical injuries to you and damages to motherboard components.
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 from the power supply. Failure to do so may cause severe damage to
the motherboard, peripherals, and/or components.

14 15
English
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 surface is unclean, or if there are any bent pins in the socket. Do not force to
insert the CPU into the socket if above situation is found. Otherwise, the CPU will be
seriously damaged.
2. Unplug all power cables before installing the CPU.
1
2