Gigabyte C621-SD8 operation manual
GA-C621-SD8
User's Manual
Rev. 1001
Copyright
© 2018 GIGA-BYTE TECHNOLOGY CO., LTD. All rights reserved.
The trademarks mentioned in this manual are legally registered to their respective owners.
Disclaimer
Information in this manual is protected by copyright laws and is the property of GIGABYTE.
Changes to the specications and features in this manual may be made by GIGABYTE without
prior notice.
No part of this manual may be reproduced, copied, translated, transmitted, or published in any form
or by any means without GIGABYTE's prior written permission.
For product-related information, check on our website at: https://www.gigabyte.com
Table of Contents
GA-C621-SD8 Motherboard Layout ................................................................................5
Box Contents ...................................................................................................................6
Chapter 1 Hardware Installation .....................................................................................7
1-1 Installation Precautions .................................................................................... 7
1-2 Product Specications ...................................................................................... 8
1-3 Installing the CPU .......................................................................................... 10
1-4 Installing the Memory ..................................................................................... 11
1-5 Back Panel Connectors .................................................................................. 12
1-6 Internal Connectors ........................................................................................ 13
Chapter 2 BIOS Setup .................................................................................................. 23
2-1 Startup Screen ............................................................................................... 23
2-2 Main ............................................................................................................... 24
2-3 Advanced ....................................................................................................... 25
2-4 Platform Conguration ................................................................................... 28
2-5 Socket Conguration ...................................................................................... 30
2-6 Server Mgmt ................................................................................................... 32
2-7 Security .......................................................................................................... 33
2-8 Boot ................................................................................................................ 34
2-9 Save & Exit ..................................................................................................... 35
Chapter 3 Application....................................................................................................36
Regulatory Statements .............................................................................................. 45
Contact Us ................................................................................................................ 46
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GA-C621-SD8 Motherboard Layout
25
33
21
1
2
35
4
8
5
6
9
7
10
22
11
12
30
14
16
34
28
29
13
29
18 1715 2419 2525
31
23
332
24
20
26
27
1 BMC_VGA
2 BMC_WATCHD
3 Buzzer
4 COM
5 SMB_IPMB
6 I_SGPIO1
7 I_SGPIO2
8 WOL
9 SMB
10 TPM
11 S_SGPIO
12 SATA_DOM0
13 SATA_DOM1
14 VRM_SCL
15 VRM_SDA
16 FUSB30
17 VROC
18 FUSB2
19 F_PANEL
20 PMBUS
21 UID
22 CLR_CMOS
23 CI
24 CPU_FAN1~2
25 SYS_FAN1~6
26 AT X
27 ATX8P_1~2
28 M.2
29 S-SATA0~1
30 I-SATA0~7
- 5 -
31 B AT
32 F_LED1
33 F_LED2
34 BMC_LED1
35 SMD_VMD
Box Contents
5 GA-C621-SD8 motherboard
5 Motherboard driver disk 5 Six SATA cables
5 Quick Installation Guide 5 I/O Shield
- 6 -
Chapter 1 Hardware Installation
1-1 Installation Precautions
The motherboard contains numerous delicate electronic circuits and components which can become
damaged as a result of electrostatic discharge (ESD). Prior to installation, carefully read the user's
manual and follow these procedures:
• Prior to installation, make sure the chassis is suitable for the motherboard.
• Prior to installation, do not remove or break motherboard S/N (Serial Number) sticker or
warranty sticker provided by your dealer. These stickers are required for warranty validation.
• Always remove the AC power by unplugging the power cord from the power outlet before
installing or removing the motherboard or other hardware components.
• When connecting hardware components to the internal connectors on the motherboard, make
sure they are connected tightly and securely.
• When handling the motherboard, avoid touching any metal leads or connectors.
• It is best to wear an electrostatic discharge (ESD) wrist strap when handling electronic
components such as a motherboard, CPU or memory. If you do not have an ESD wrist strap,
keep your hands dry and rst touch a metal object to eliminate static electricity.
• Prior to installing the motherboard, please have it on top of an antistatic pad or within an
electrostatic shielding container.
• Before connecting or unplugging the power supply cable from the motherboard, make sure
the power supply has been turned off.
• Before turning on the power, make sure the power supply voltage has been set according to
the local voltage standard.
• Before using the product, please verify that all cables and power connectors of your hardware
components are connected.
• To prevent damage to the motherboard, do not allow screws to come in contact with the
motherboard circuit or its components.
• Make sure there are no leftover screws or metal components placed on the motherboard or
within the computer casing.
• Do not place the computer system on an uneven surface.
• Do not place the computer system in a high-temperature or wet environment.
• Turning on the computer power during the installation process can lead to damage to system
components as well as physical harm to the user.
• If you are uncertain about any installation steps or have a problem related to the use of the
product, please consult a certied computer technician.
• If you use an adapter, extension power cable, or power strip, ensure to consult with its installation
and/or grounding instructions.
- 7 -
1-2 ProductSpecications
CPU 1st and 2nd Generation Intel® Xeon® Scalable Processors, Dual LGA 3647 Socket
P (Square) with 2 UPI support of up to 10.4 GT/s, CPU TDP support up to 165W
Chipset Intel® C621 Chipset
Memory 8 x DDR4 DIMM sockets supporting up to 1 TB of system memory
8 channel memory architecture (4 channel per CPU)
Support for DDR4 2666 MHz memory modules if use a Skylake CPU
Support for DDR4 2933 MHz memory modules if use a Cascade lake CPU
Support for ECC RDIMM/RDIMM 3DS/LRDIMM/LRDIMM 3DS memory modules
Onboard
Graphics
LAN 1 x Realtek RTL8211E chip (10/100/1000 Mbit) (LAN1)
Expansion Slots 2 x PCI Express x16 slots, running at x16 (PCIEX16_3, PCIEX16_5)
Storage Interface Chipset:
USB Chipset:
Internal
Connectors
ASPEED® AST2500:
- 1 x D-Sub port, supporting a maximum resolution of 1920x1200@60 Hz
2 x Intel® 210AT GbE LAN chips (10/100/1000 Mbit) (LAN2, LAN3)
1 x PCI Express x16 slot, running at x8 (PCIEX8_1)
2 x PCI Express x8 slots, running at x8 (PCIEX8_2, PCIEX8_6)
1 x PCI Express x8 slot, running at x4 (PCIEX4_4)
(All of the PCI Express x16 slots conform to PCI Express 3.0 standard.)
- 1 x M.2 connector (Socket 3, M key, type 2260/2280 PCIe x4/x2 SSD support)
- 8 x SATA 6Gb/s connectors (I-SATA0~I-SATA7)
- 2 x SATA 6Gb/s connectors (S-SATA0, S-SATA1)
- Support for RAID 0, RAID 1, RAID 5, and RAID 10
- 5 x USB 3.1 Gen 1 ports (2 ports on the back panel, 1 port onboard, 2 ports
available through the internal USB header)
- 2 x USB 2.0/1.1 ports available through the internal USB header
1 x 24-pin ATX main power connector
2 x 8-pin ATX 12V power connectors
2 x CPU fan headers
6 x system fan headers
1 x M.2 Socket 3 connector
10 x SATA 6Gb/s connectors
2 x SATA DOM power headers
1 x PMBus connector
1 x Intel® VROC Upgrade Key header
1 x front panel header
1 x USB 3.1 Gen 1 header
1 x USB 3.1 Gen 1 port
1 x USB 2.0/1.1 header
1 x Trusted Platform Module (TPM) header
1 x serial port connector
1 x chassis intrusion header
3 x SATA SGPIO headers
1 x SMD_VMD header
- 8 -
Internal
Connectors
1 x IPMB connector
1 x SMB connector
1 x wake on LAN header
1 x Clear CMOS jumper
1 x VGA jumper
1 x Watch-Dog timer jumper
1 x VRM SMB Clock jumper
1 x VRM SMB Data jumper
1 x UID button
1 x buzzer
Back Panel
Connectors
1 x D-Sub port
3 x RJ-45 ports
2 x USB 3.1 Gen 1 ports
I/O Controller ASPEED® AST2500 BMC chip
Hardware
Monitor
Voltage detection
Temperature detection
Fan speed detection
Fan speed control
* Whether the fan speed control function is supported will depend on the fan you install.
BIOS 1 x 256 Mbit ash
Use of licensed AMI BIOS
PnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0
Form Factor CEB Form Factor; 30.5cm x 26.7cm
* GIGABYTE reserves the right to make any changes to the product specications and product-related information without
prior notice.
- 9 -
1-3 Installing the CPU
Read the following guidelines before you begin to install the CPU:
• Make sure that the motherboard supports the CPU.
• Always turn off the computer and unplug the power cord from the power outlet before installing the
CPU to prevent hardware damage.
• Locate the pin one of the CPU. The CPU cannot be inserted if oriented incorrectly. (Or you may
locate the notches on both sides of the CPU and alignment keys on the CPU socket.)
• Apply an even and thin layer of thermal grease on the surface of the CPU.
• Do not turn on the computer if the CPU cooler is not installed, otherwise overheating and damage
of the CPU may occur.
• Set the CPU host frequency in accordance with the CPU specications. It is not recommended
that the system bus frequency be set beyond hardware specications since it does not meet the
standard requirements for the peripherals. If you wish to set the frequency beyond the standard
specications, please do so according to your hardware specications including the CPU, graphics
card, memory, hard drive, etc.
Installing the CPU
Locate the alignment keys on the motherboard CPU socket and the notches on the CPU.
C
B
A
B
A
1
C
2
3
8
4
6
5
7
- 10 -
1-4 Installing the Memory
Read the following guidelines before you begin to install the memory:
• Make sure that the motherboard supports the memory. It is recommended that memory of the same
capacity, brand, speed, and chips be used.
(Go to GIGABYTE's website for the latest supported memory speeds and memory modules.)
• Always turn off the computer and unplug the power cord from the power outlet before installing the
memory to prevent hardware damage.
• Memory modules have a foolproof design. A memory module can be installed in only one direction.
If you are unable to insert the memory, switch the direction.
4ChannelMemoryConguration
This motherboard supports 4 Channel Technology. After the memory is installed, the BIOS will automatically
detect the specications and capacity of the memory.
The eight DDR4 memory sockets are divided into four channels and each channel has two memory sockets
as following:
Channel 1: P1-DIMM_A1 (For CPU 1)/P2-DIMM_A1 (For CPU 2)
Channel 2: P1-DIMM_B1 (For CPU 1)/P2-DIMM_B1 (For CPU 2)
Channel 3: P1-DIMM_D1 (For CPU 1)/P2-DIMM_D1 (For CPU 2)
Channel 4: P1-DIMM_E1 (For CPU 1)/P2-DIMM_E1 (For CPU 2)
Due to CPU limitations, read the following guidelines before installing the memory in 4 Channel mode.
1. 4 Channel mode cannot be enabled if only one memory module is installed.
2. When enabling 4 Channel mode with two or four memory modules, it is recommended that memory of
the same capacity, brand, speed, and chips be used.
- 11 -
1-5 Back Panel Connectors
D-Sub Port
The D-Sub port supports a 15-pin D -Sub connector and supports a maximum resolution of 1920x1200@60 Hz
(the actual resolutions supported depend on the monitor being used). Connect a monitor that supports
D-Sub connection to this port.
IPMI Port (LAN1)
The Gigabit Ethernet LAN port provides Internet connection at up to 1 Gbps data rate. The following
describes the states of the LAN port LEDs.
Activity LEDLink LED
LAN Port
USB 3.1 Gen 1 Port
The USB 3.1 Gen 1 port supports the USB 3.1 Gen 1 specication and is compatible to the USB 2.0
specication. You can connect a USB DAC to this port or use this port for USB devices.
GbE LAN Port (LAN2)
The Gigabit Ethernet LAN port provides Internet connection at up to 1 Gbps data rate. The following
describes the states of the LAN port LEDs.
Link LEDActivity LED
LAN Port
LED State Description
Link (Left)
Activity (Right) Blinking Yellow Active
LED State Description
Link (Right)
Activity (Left) Blinking Yellow Active
Solid Green 100 Mbps data rate
Solid Amber 1 Gbps data rate
Solid Green 100 Mbps data rate
Solid Amber 1 Gbps data rate
GbE LAN Port (LAN3)
The Gigabit Ethernet LAN port provides Internet connection at up to 1 Gbps data rate. The following
describes the states of the LAN port LEDs.
LAN Port
Activity LEDLink LED
• When removing the cable connected to a back panel connector, rst remove the cable from your
device and then remove it from the motherboard.
• When removing the cable, pull it straight out from the connector. Do not rock it side to side to
prevent an electrical short inside the cable connector.
LED State Description
Link (Right)
Activity (Left) Blinking Yellow Active
Solid Green 100 Mbps data rate
Solid Amber 1 Gbps data rate
- 12 -
1-6 Internal Connectors
25
33
21
1
2
35
4
8
5
6
9
7
10
22
11
12
30
14
16
34
28
29
13
29
18 1715 2419 2525
1 BMC_VGA
2 BMC_WATCHD
3 Buzzer
4 COM
5 SMB_IPMB
6 I_SGPIO1
7 I_SGPIO2
8 WOL
9 SMB
10 TPM
31
23
332
11 S_SGPIO
12 SATA_DOM0
13 SATA_DOM1
14 VRM_SCL
15 VRM_SDA
16 FUSB30
17 VROC
18 FUSB2
19 F_PANEL
20 PMBUS
21 UID
22 CLR_CMOS
23 CI
24 CPU_FAN1~2
25 SYS_FAN1~6
26 AT X
27 ATX8P_1~2
28 M.2
29 S-SATA0~1
30 I-SATA0~7
24
20
26
27
31 B AT
32 F_LED1
33 F_LED2
34 BMC_LED1
35 SMD_VMD
Read the following guidelines before connecting external devices:
• First make sure your devices are compliant with the connectors you wish to connect.
• Before installing the devices, be sure to turn off the devices and your computer. Unplug the power
cord from the power outlet to prevent damage to the devices.
• After installing the device and before turning on the computer, make sure the device cable has
been securely attached to the connector on the motherboard.
- 13 -
1) BMC_VGA
1
2) BMC_WATCHD
1
3) Buzzer
Pin Denition
1-2 Enable (Default)
2-3 Disable
Pin Denition
1-2 Enable
2-3 Disable (Default)
4) COM (Serial Port Header)
9
1102
Pin Denition Pin Denition
1 NDCD- 2 NSIN
3 NSOUT 4 NDTR-
5 GND 6 NDSR-
7 NRTS- 8 NCTS-
9 NRI- 10 -
- 14 -
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