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Home > Products > Servers > Server motherboards > MB-GC621AX

MB-GC621AX Gigabyte C621-Aorus Xtreme C621 chipset LGA 3647 Sever Motherboard

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Gigabyte C621-Aorus Xtreme C621 chipset LGA 3647 Sever Motherboard
Images are for illustrative purposes only. Actual product may differ.



Server motherboards


MB-GC621AX information and overview
Gigabyte C621-Aorus Xtreme - single socket LGA 3647 (optimized for w-3175X) sever Motherboard - for xeon Scalable series, 32 phase 1600A IR All Digital VRM Solution with PowIRstage, solid pin power connectors (8+8+24+24) designed for dual PSU, on-board buttons (power+rest), memory armor with stainless steel shielding + double locking bracket, PCIe armor with stainless steel shielding - Intel C621 chipset with VRoC (VMD+RSTe5.0), 12x 6-channels DDR4-4200(o.c)/2666 memory (non-ECC or ECC-Registered) up to 192Gb, 8x SATA6G with raid 0/1//0+1/10, 1x U.2 (2.5" NVMe), on-board Realtek ALC S1220-VB2 DTS 7.1 audio with optical s/pdif out audio + dual Intel gigabit lan (i210AT+ i219LM); 7x Pci-E 3.0 16x (16x+16x+8x+8x+8x+8x+4x) for 3-way SLi/CrossfireX, with 2x USB3.0 + 4x usb2.0 + support optional serial/RS232 add-on cable - E-ATX Copyright © 2020 ComXpert International CC - COPYING IS ONLY ALLOWED FOR THE PURPOSE OF SENDING US ENQUIRIES. E&OE.

© Respective owners and brand holders. © 2020 ComXpert International CC. The contents has been generated by ComXpert International CC (// All products are sourced locally in South Africa and the warranty is that of the local supplier only. E&OE.

Specifications & more information about MB-GC621AX, Server motherboards manufactured by Gigabyte
Specifications available as a download MB-GC621AX specifications Adobe PDF and printable version
Important notice The information displayed below this paragraph is for reference purposes only. The information may be generic in nature, which covers the entire range of products that fall within this category, and might not apply to this specific model. Please select the correct model as per the above description.

Kindly note that additional software, such as anti-virus and office software, are trial versions and a license will need to be purchased to use the software without limitations.


Empower the ultimate performance
C621 AORUS XTREME motherboard uses an all IR digital CPU power design which includes both a digital PWM Controller and PowlRstage, and is capable of providing at least 50A of power from each phase, for a total of 1600A. These 100% digital controller and optimized 2 * 8+8 solid-pin CPU power connectors offer incredible high efficiency and precision in delivering power to the platform's most power-hungry and energy-sensitive components, allowing enthusiasts to get the absolute maximum performance from the W-3175X processor.

Transient Optimization
High efficiency compensating POSCAPs placement optimizes total transient response of the VRM delivering power to the most power-hungry and energy-sensitive W-3175X processor.

Power Up Synchronization on Dual PSU
Optimized power path design of 2 * 8+8 solid-pin CPU power connectors eliminates voltage and current race conditions from two different power supply units. Dual ATX_24 solid-pin platform power connectors offer incredible precision in synchronization between two independent power supply units activation.

The power of silent flow
Full aluminum high precision CNC manufactured to optimize the flow direction in the chassis provides the most reliable and silent thermal solution for the system.

Seeds of your creativity
Max out the 48 lanes from W-3175X with the 7-slot design and the additional 4 lanes from the PCH that make C621 AORUS XTREME the ultimate power house of content creation.

There are no boundaries but those in your mind
C621 Aorus Xtreme now has a more powerful VRM design and richer platform I/Os*. It is the ultimate platform for those who are seeking the most powerful tools for extreme gaming hosting, digital content creation, deep learning, power medical imaging, calculation, biological genetic analysis, energy exploration, astronomical science research, and much more.
Notably, C621 AORUS XTREME motherboard inherits the platform that smashed the single processor computing performance with the astonishing feat of having all 28 cores running stable at 5GHz earlier during the 2018 COMPUTEX Intel Keynote.

Workstation Ready
Built-in SATA Disk on Modules connector and physical in-chassis USB 3.0 port turns your C621 AORUS XTREME into the best virtual machine platform of your dreams.

Dual High Speed INTEL Gigabit LAN
Intel® GbE LAN features cFosSpeed, a network traffic management application which helps to improve network latency and maintain low ping times to deliver better responsiveness in crowded LAN environments.

Ultra Durable PCIe Armor
Never worry about your heavy graphics card damaging your motherboard again. AORUS proprietary Ultra Durable PCIe Metal Shielding + Double Locking Bracket reinforces the PCIe connector to prevent slot damage due to heavy graphics cards.

Solid Pin Power Connectors Advantages

  • Larger contact area for electricity
  • More metal quantity to sustain higher power and generated heat
  • Ultra durable and longer lifespan

Ultra Durable Anti-Sulfur Design
Sulfur compounds in the air can penetrate tiny onboard resistors creating chemical changes and causing these resistors to open or short. If either of these occurs, the motherboard will fail to function. By equipping resistors with an Anti-Sulfur Design, GIGABYTE gives Ultra Durable Motherboards a whole new meaning.

Static-Electricity & Surge Protection
GIGABYTE motherboards use ICs with up to 3 times the ESD resistance levels compared to traditional ICs. This helps to better protect the motherboard and its components against potential damage caused by static electricity. GIGABYTE motherboards also feature special anti-surge ICs that protect your motherboard and your PC from any surge in power delivery that may occur, ensuring that your PC is equipped to deal with any potentially irregular and inconsistent power delivery.

GIGABYTE Patented DualBIOS™ Design
DualBIOS™, an exclusive technology from GIGABYTE that protects arguably one of your PC's most crucial components, the BIOS. GIGABYTE DualBIOS™ means that your motherboard has both a 'Main BIOS' and a 'Backup BIOS', protecting users from BIOS failure due to virus, hardware malfunction, improper OC settings or power failure during the update process.

2x Copper PCB Design
Provides sufficient power trace paths between components to handle greater than normal power loads and to remove heat from the critical CPU power delivery area.

No More Confusion During In-Game Voice Chat
Microphone input with higher front dynamic range allows gamers to hear more clearly. No more misunderstandings, no more confusing GO! GO! GO! as NO! NO! NO!

All New Realtek High-End HD Audio Codec
ALC1220 120dB(A) SNR HD Audio with Smart Headphone Amp, it automatically detects impedance of your head-worn audio device, preventing issues such as low volume and distortion. New VB series audio controller streams your voice to the world vibrantly with both front/rear microphone SNR up to 110/114dB(A)


© 2019 Respective owners and brand holders. This table has been carefully researched and generated by ComXpert International CC (//, however, errors and omissions may occur. Only references to South Africa apply. All products are sourced in South Africa from the official suppliers and the warranty is that of the local supplier. E&OE. This table and our site's content may be used on condition that this notice and link remains intact and unaltered.
Product CodeMB-GC621AXspacer
CPU 1. Support for Intel Xeon W-3175X Scalable processor in the LGA3647 package
2. L3 cache varies with CPU
Chipset 1. Intel C621 Chipset
Memory 1. 12 x DDR4 DIMM sockets supporting up to 192 GB of system memory
2. 6 channel memory architecture
3. Support for DDR4 4200(O.C.) / 4000(O.C.) / 3800(O.C.) / 3733(O.C.) / 3600(O.C.) / 3466(O.C.) / 3400(O.C.) / 3200(O.C.) / 3000(O.C.) / 2933(O.C.) / 2800(O.C.) / 2666 / 2400 / 2133 MHz
4. Support for ECC Registered DIMM memory modules
5. Support for ECC Un-buffered DIMM memory modules
6. Support for Extreme Memory Profile (XMP) memory modules
Audio 1. Realtek ALC1220-VB codec
* The back panel line out jack supports DSD audio.
2. High Definition Audio
3. 2/4/5.1/7.1-channel
4. Support for S/PDIF Out
LAN 1. 2 x Intel GbE LAN chips (10/100/1000 Mbit)
Expansion Slots 1. 2 x PCI Express x16 slots, running at x16 (PCIEX16_1/2)
* For optimum performance, if only one PCI Express graphics card is to be installed, be sure to install it in the PCIEX16_1 slot.
2. 4 x PCI Express x16 slots, running at x8 (PCIEX8_1/2/3/4)
* The PCIEX8_1 slot shares bandwidth with the PCIEX16_1 slot and the PCIEX8_3 with PCIEX16_2. When PCIEX8_1/PCIEX8_3 is populated, PCIEX16_1/PCIEX16_2 operates at up to x8 mode.
3. 1 x PCI Express x16 slot, running at x4 (PCIEX4)
(All of the PCI Express slots conform to PCI Express 3.0 standard.)
Multi-Graphics Technology 1. Support for NVIDIA Quad-GPU SLI and 4-Way/3-Way/2-Way NVIDIA SLI technologies
2. Support for AMD Quad-GPU CrossFire and 4-Way/3-Way/2-Way AMD CrossFire technologies
Storage Interface Chipset:
1. 8 x SATA 6Gb/s connectors
2. Support for RAID 0, RAID 1, RAID 5, and RAID 10
3. 1 x U.2 connector
USB Chipset:
1. 5 x USB 3.1 Gen 1 ports (2 ports on the back panel, 2 ports available through the internal USB header, 1 onboard)
2. 6 x USB 2.0/1.1 ports (4 ports on the back panel, 2 ports available through the internal USB header)
Internal I/O Connectors 1. 2 x 24-pin ATX main power connectors
2. 4 x 8-pin ATX 12V power connectors
3. 2 x OC_PEG power connectors
4. 1 x CPU fan header
5. 1 x water cooling CPU fan header
6. 4 x system fan headers
7. 2 x system fan/water cooling pump headers
8. 2 x addressable LED strip headers
9. 2 x addressable LED strip power select jumpers
10. 2 x RGB LED strip headers
11. 8 x SATA 6Gb/s connectors
12. 1 x U.2 connector
13. 2 x SATA power headers
14. 2 x SATA detection headers
15. 1 x power information detection header
16. 1 x front panel header
17. 1 x front panel audio header
18. 1 x S/PDIF Out header
19. 1 x USB 3.1 Gen 1 header
20. 1 x USB 3.1 Gen 1 port
21. 1 x USB 2.0/1.1 header
22. 1 x Trusted Platform Module (TPM) header (2x6 pin, for the GC-TPM2.0_S module only)
23. 1 x Intel VROC Upgrade Key header
24. 1 x serial port header
25. 1 x Clear CMOS jumper
26. 1 x reset button
27. 1 x power button
28. 2 x temperature sensor headers
29. 1 x BIOS switch
30. 1 x buzzer
Back Panel Connectors 1. 1 x PS/2 keyboard/mouse port
2. 4 x USB 2.0/1.1 ports
3. 2 x USB 3.1 Gen 1 ports
4. 2 x RJ-45 ports
5. 1 x optical S/PDIF Out connector
6. 5 x audio jacks
I/O Controller 1. iTE I/O Controller Chip
H/W Monitoring 1. Voltage detection
2. Temperature detection
3. Fan speed detection
4. Water cooling flow rate detection
5. Overheating warning
6. Fan fail warning
7. Fan speed control
* Whether the fan (pump) speed control function is supported will depend on the fan (pump) you install.
BIOS 1. 2 x 256 Mbit flash
2. Use of licensed AMI UEFI BIOS
3. Support for DualBIOS
4. PnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0
Unique Features 1. Support for @BIOS
2. Support for Q-Flash
3. Support for RGB Fusion
4. Support for System Information Viewer
Bundled Software 1. Norton Internet Security (OEM version)
Operating System 1. Support for Windows 10 64-bit
Form Factor 1. E-ATX Form Factor; 38.6cm x 35.9cm
Chassis support list:
Chassis that supports HPTX
CORSAIR Obsidian Series 900D (Validated)
PHANTEKS Enthoo Elite
Water Block Support List:
Remark 1. Due to different Linux support condition provided by chipset vendors, please download Linux driver from chipset vendors' website or 3rd party website.
2. Most hardware/software vendors may no longer offer drivers to support Win9X/ME/2000/XP. If drivers are available from the vendors, we will update them on the GIGABYTE website.

, ©2019 ComXpert International CC


The best price and guaranteed service and backup from official computer suppliers in South Africa for the MB-GC621AX Gigabyte C621-Aorus Xtreme C621 chipset LGA 3647 Sever Motherboard.
Available from this online computer store delivering door-to-door in Johannesburg, Cape Town, Port Elizabeth, Pretoria, Pietermaritzburg, Polokwane, Durban and all over South Africa.

Find related MB-GC621AX Gigabyte C621-Aorus Xtreme C621 chipset LGA 3647 Sever Motherboard products in our Server motherboards Category for even more options. Read reviews and find out about MB-GC621AX Gigabyte C621-Aorus Xtreme C621 chipset LGA 3647 Sever Motherboard. Discounts, specials and cheap prices only at ComX Computers.

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