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Motherboards

C621 AORUS XTREME

Model C621 AORUS XTREME

Intel C621 E-ATX motherboard for Socket LGA3647 processors, with 12 DDR4 slots (up to 192 GB) and 2 x 1 GbE LAN.

Socket
LGA3647
Chipset
Intel C621
Form factor
E-ATX
Memory
12 x DDR4, up to 192 GB
LAN
2 x 1 GbE
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Overview Specifications Media Platform and pairing Support
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Overview

Highlights

  • Supports W-3175X Processor @ All Cores 5GHz+ (Overclocking)
  • 6-Channel Non-ECC Unbuffered DDR4, 12 UDIMMs
  • 32-Phases 1600A IR All Digital VRM Solution with PowIRstage
  • 7-slots Multi-Way Graphics Support with PCIe Armor and Ultra Durable Design
  • Dual Intel i210AT + i219LM GbE with high ESD Protection
  • U.2 with PCIe Gen3 x4 interface

Platform

Socket
LGA3647
Chipset
Intel C621
Form factor
E-ATX 38.6 x 35.9 cm
Memory
DDR4
  • 12 DIMM slots
  • Up to 192 GB
  • Up to 4200 MHz (OC)
Registered (RDIMM), ECC
Processor support
  • Intel Xeon W-3175X Scalable processor in the LGA3647 Socket P
Expansion slots
  • 2 x PCIe x16 slots, running at x16
  • 4 x PCIe x16 slots, running at x8
  • 1 x PCIe x16 slot, running at x4
PCIe 3.0
Storage
8 x SATA 6Gb/s
LAN
  • 2 x Intel GbE LAN (10/100/1000 Mbit)
Wireless
Not included
Power inputs
  • 24-pin ATX
  • 4 x 8-pin ATX 12V

At a glance

Platform
Intel
Socket
LGA3647
Chipset
C621
Form factor
E-ATX
Memory
DDR4
Series
AORUS
Full specifications

Specifications

Platform

CPU
Support for Intel Xeon W-3175X Scalable processor in the LGA3647 Socket P (Narrow)L3 cache varies with CPU
Chipset
Intel C621 Chipset
Memory
12 x DDR4 DIMM sockets supporting up to 192 GB of system memory6 channel memory architectureSupport 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 MHzSupport for ECC Registered DIMM memory modulesSupport for ECC Un-buffered DIMM memory modulesSupport for Extreme Memory Profile (XMP) memory modules

Graphics and audio

Audio
Realtek ALC1220-VB codec* The back panel line out jack supports DSD audio.High Definition Audio2/4/5.1/7.1-channelSupport for S/PDIF Out
Multi-Graphics technology
Support for NVIDIA Quad-GPU SLI and 4-Way/3-Way/2-Way NVIDIA SLI technologiesSupport for AMD Quad-GPU CrossFire and 4-Way/3-Way/2-Way AMD CrossFire technologies

Networking

LAN
2 x Intel GbE LAN chips (10/100/1000 Mbit)

Expansion and storage

Expansion slots
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.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.1 x PCI Express x16 slot, running at x4 (PCIEX4)(All of the PCI Express slots conform to PCI Express 3.0 standard.)
Storage interface
Chipset:8 x SATA 6Gb/s connectorsSupport for RAID 0, RAID 1, RAID 5, and RAID 101 x U.2 connector

Ports and connectors

USB
Chipset:5 x USB 3.1 Gen 1 ports (2 ports on the back panel, 2 ports available through the internal USB header, 1 onboard)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
2 x 24-pin ATX main power connectors4 x 8-pin ATX 12V power connectors2 x OC_PEG power connectors1 x CPU fan header1 x water cooling CPU fan header4 x system fan headers2 x system fan/water cooling pump headers2 x addressable LED strip headers2 x addressable LED strip power select jumpers2 x RGB LED strip headers8 x SATA 6Gb/s connectors1 x U.2 connector2 x SATA power headers2 x SATA detection headers1 x power information detection header1 x front panel header1 x front panel audio header1 x S/PDIF Out header1 x USB 3.1 Gen 1 header1 x USB 3.1 Gen 1 port1 x USB 2.0/1.1 header1 x Trusted Platform Module (TPM) header (2x6 pin, for the GC-TPM2.0_S module only)1 x Intel VROC Upgrade Key header1 x serial port header1 x Clear CMOS jumper1 x reset button1 x power button2 x temperature sensor headers1 x BIOS switch1 x buzzer
Back panel connectors
1 x PS/2 keyboard/mouse port4 x USB 2.0/1.1 ports2 x USB 3.1 Gen 1 ports2 x RJ-45 ports1 x optical S/PDIF Out connector5 x audio jacks
I/O controller
iTE I/O Controller Chip

Firmware and software

H/W monitoring
Voltage detectionTemperature detectionFan speed detectionWater cooling flow rate detectionOverheating warningFan fail warningFan speed control* Whether the fan (pump) speed control function is supported will depend on the fan (pump) you install.
BIOS
2 x 256 Mbit flashUse of licensed AMI UEFI BIOSSupport for DualBIOSPnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0
Unique features
Support for @BIOSSupport for Q-FlashSupport for RGB FusionSupport for System Information Viewer
Bundle software
Norton Internet Security (OEM version)
Operating system
Support for Windows 10 64-bit

Board

Form factor
E-ATX Form Factor; 38.6cm x 35.9cmChassis support list:Chassis that supports HPTXCORSAIR Obsidian Series 900D (Validated)PHANTEKS Enthoo EliteWater Block Support List:Bitspower, https://shop.bitspower.com/index.php?route=product/product&product_id=7236

Specifications are taken from the manufacturer's published information and may change. Confirm critical values with our sales desk before ordering.

GIGABYTE product page

Media

Photos 3

Downloads

Official information

GIGABYTE product page for C621 AORUS XTREME gigabyte.com

Platform and pairing

Processor and memory

Supplied by brand rather than listed by model. Name the part you need in your enquiry.

Graphics cards

A spread of current cards, from top tier to entry level. Each card page lists its length and recommended power supply.

All 68 graphics cards

Power supplies

Ratings from 400 W to 3000 W. This board's power inputs: 24-pin ATX and 4 x 8-pin ATX 12V. Size the supply to the recommended PSU of the graphics card you fit.

All 229 power supplies

CPU coolers for LGA3647

All 26 CPU coolers

None of the coolers we list states support for socket LGA3647. Ask us for one that does.

Cabinets for E-ATX boards

Cabinets whose specifications list E-ATX motherboard support.

All 77 cabinets

Parts to plan with this motherboard

Check sockets, memory type, power connectors and dimensions against the specifications before ordering, or ask our sales desk to confirm a build.

Support

Warranty and repairs

Warranty is as per GIGABYTE’s terms for this model. For products bought from us, call our service team with the invoice number, the model and the product’s serial number.

From GIGABYTE

Practical notes

  1. Update the BIOS only from the official support page, following the brand’s instructions.
  2. Check the CPU support list for the BIOS version before buying a processor.
  3. Install chipset, LAN and audio drivers from the official support page.

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Pairs with

GIGABYTE C621 AORUS XTREME 1 / 3