Do you know where I can find a bios update with the latest Intel RST and Intel Management Engine firmware? It seems like they just dumped this board on the market with no intent to support it.

Nothing from Gigabyte that I could find. There are ME firmware and driver downloads available on Intel’s website that address the latest security issues but I cannot determine if they are compatible with this MB so I have not attempted to use it. I checked the ME version on my MB using the Intel CSME Version Detection Tool and it is out of date. I have installed the latest RST and chipset drivers from Intel’s website without problems. I agree that Gigabyte is not properly supporting this MB with necessary bios/firmware updates.

Can this support 4 RTX 2080Ti GPU's ?

Yes, this motherboard supports NVIDIA Quad-GPU SLI technology, which means it can support 4 RTX 2080Ti GPUs.

processor selection. i am creating a list of parts as to buy all i need at once. but am unable to decided which processor to get. when looking at processor specs. i found the most powerful had 44 express lanes. but this board status that it only supports 128 gb ram with 44 lane proc's, and 256 gb with 48 lane processors. however no processor seemed to have 48 lanes. which makes me question if this is a typo, given the most powerful proc i found for this socket stated 44 express lanes. which proc(s) would support full 256 gb ram?

Intel Core X-series Processors (i.e., i9-10900X through i9-10980XE) support 48 PCI Express Lanes and 256 GB RAM.

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GIGABYTE X299X AORUS MASTER LGA 2066 Intel X299 Extended ATX Intel Motherboard

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Option: X299X AORUS MASTER

X299 DESIGNARE EX
X299 UD4 PRO
X299-WU8
X299X AORUS MASTER
X299X DESIGNARE 10G

Intel X299
Support for Intel Core i7-7800X and above X series processors / Intel Core i9 X series processors in the LGA2066 package
Intel Core X series 48-lane processors:
8 x DDR4 DIMM sockets supporting up to 256GB (32GB single DIMM capacity) of system memory
Support for DDR4 4333(O.C.)/ 4266(O.C.)/ 4133(O.C.)/ 4000(O.C.)/ 3866(O.C.)/ 3800(O.C.)/ 3733(O.C.)/ 3666(O.C.)/ 3600(O.C.)/ 3466(O.C.)/ 3400(O.C.)/ 3333(O.C.)/ 3300(O.C.)/ 3200(O.C.)/ 3000(O.C.)/ 2933/ 2666/ 2400/ 2133 MHz memory modules
Intel Core X series 44-lane/28-lane processors:
8 x DDR4 DIMM sockets supporting up to 128GB (16GB single DIMM capacity) of system memory
Support for DDR4 4200(O.C.)/ 4133(O.C.)/ 4000(O.C.)/ 3866(O.C.)/ 3800(O.C.)/ 3733(O.C.)/ 3666(O.C.)/ 3600(O.C.)/ 3466(O.C.)/ 3400(O.C.)/ 3333(O.C.)/ 3300(O.C.)/ 3200(O.C.)/ 3000(O.C.)/ 2666/ 2400/ 2133 MHz memory modules

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Model
Brand	GIGABYTE
Model	X299X AORUS MASTER

Supported CPU
CPU Socket Type	LGA 2066
CPU Type	Support for Intel Core i7-7800X and above X series processors / Intel Core i9 X series processors in the LGA2066 package

Chipsets
Chipset	Intel X299

Memory
Number of Memory Slots	8x288pin (DDR4)
Memory Standard	Intel Core X series 48-lane processors: 8 x DDR4 DIMM sockets supporting up to 256GB (32GB single DIMM capacity) of system memory Support for DDR4 4333(O.C.)/ 4266(O.C.)/ 4133(O.C.)/ 4000(O.C.)/ 3866(O.C.)/ 3800(O.C.)/ 3733(O.C.)/ 3666(O.C.)/ 3600(O.C.)/ 3466(O.C.)/ 3400(O.C.)/ 3333(O.C.)/ 3300(O.C.)/ 3200(O.C.)/ 3000(O.C.)/ 2933/ 2666/ 2400/ 2133 MHz memory modules Intel Core X series 44-lane/28-lane processors: 8 x DDR4 DIMM sockets supporting up to 128GB (16GB single DIMM capacity) of system memory Support for DDR4 4200(O.C.)/ 4133(O.C.)/ 4000(O.C.)/ 3866(O.C.)/ 3800(O.C.)/ 3733(O.C.)/ 3666(O.C.)/ 3600(O.C.)/ 3466(O.C.)/ 3400(O.C.)/ 3333(O.C.)/ 3300(O.C.)/ 3200(O.C.)/ 3000(O.C.)/ 2666/ 2400/ 2133 MHz memory modules
Maximum Memory Supported	256GB
Channel Supported	Quad Channel

Expansion Slots
PCI Express 3.0 x16	Intel Core X series 48-lane processors: 2 x PCI Express x16 slots, running at x16 (PCIEX16_1, PCIEX16_2) 2 x PCI Express x16 slots, running at x8 (PCIEX8_1, PCIEX8_2) * The PCIEX16_2 slot shares bandwidth with the PCIEX8_1 slot. When the PCIEX8_1 slot is populated, the PCIEX16_2 slot operates at up to x8 mode. Intel Core X series 44-lane processors: 2 x PCI Express x16 slots, running at x16 (PCIEX16_1, PCIEX16_2) 1 x PCI Express x16 slot, running at x8 (PCIEX8_1) 1 x PCI Express x16 slot, running at x4 (PCIEX8_2) * The PCIEX16_2 slot shares bandwidth with the PCIEX8_1 slot. When the PCIEX8_1 slot is populated, the PCIEX16_2 slot operates at up to x8 mode. Intel Core X series 28-lane processors: 1 x PCI Express x16 slot, running at x16 (PCIEX16_1) 1 x PCI Express x16 slot, running at x8 (PCIEX16_2) 1 x PCI Express x16 slot, running at x4 (PCIEX8_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. (All of the PCI Express x16 slots conform to PCI Express 3.0 standard.)

Storage Devices
Serial ATA (SATA)	8 x SATA 6Gb/s
M.2	CPU: 1 x M.2 connector (Socket 3, M key, type 2260/2280/22110 PCIe x4/x2 SSD support) (M2M) 1 x M.2 connector (Socket 3, M key, type 2242/2260/2280/22110 PCIe x4/x2 SSD support) (M2Q) * The M2M and M2Q connectors become unavailable when an Intel Core X series 28-lane processor is used. Chipset: 1 x M.2 connector (Socket 3, M key, type 2242/2260/2280/22110 SATA and PCIe x4/x2 SSD support) (M2P)
Intel Optane Ready	Intel Optane Memory Ready * Only Intel Core X series 48-lane processors support Intel Optane Memory.
SATA RAID	0/1/5/10

Onboard Audio
Audio Chipset	Realtek ALC1220-VB codec * The front panel line out jack supports DSD audio.
Audio Channels	4.2/4/5.1/7.1-channel Support for S/PDIF Out

Onboard LAN
LAN Chipset	Aquantia 5GbE LAN chip
Second LAN Chipset	Intel GbE LAN chip
Max LAN Speed	5Gbps + 1Gbps
Wireless LAN	Wi-Fi 802.11 a/b/g/n/ac/ax, supporting 2.4/5 GHz Dual-Band Support for 11 ax 160 MHz wireless standard and up to 2.4 Gbps data rate * Actual data rate may vary depending on environment and equipment.
Bluetooth	BLUETOOTH 5.0

Rear Panel Ports
Back I/O Ports	1 x Q-Flash Plus button 1 x Clear CMOS button 1 x USB Type-C port, with USB 3.2 Gen 2 support 1 x USB 3.2 Gen 2 Type-A port (red) 6 x USB 3.2 Gen 1 ports 2 x USB 2.0/1.1 ports 2 x RJ-45 ports 2 x SMA antenna connectors (2T2R) 1 x optical S/PDIF Out connector 5 x audio jacks

Internal I/O Connectors
Onboard USB	1 x USB Type-C port, with USB 3.2 Gen 2 support 2 x USB 3.2 Gen 1 headers 3 x USB 2.0/1.1 headers
Other Connectors	1 x CPU fan header 1 x water cooling CPU fan header 4 x system fan headers 2 x system fan/water cooling pump headers 2 x addressable LED strip headers 2 x RGB LED strip headers 1 x Intel VROC Upgrade Key header 1 x front panel header 1 x front panel audio header 1 x noise detection header 1 x Thunderbolt add-in card connector 1 x Trusted Platform Module (TPM) header (2x6-pin, for the GC-TPM2.0_S module only) 1 x power button 1 x reset button 2 x temperature sensor headers 1 x Clear CMOS jumper 2 x BIOS switches

Physical Spec
Form Factor	Extended ATX
LED Lighting	RGB
Dimensions (W x L)	12.0" x 10.6"
Power Pin	1 x 24-pin ATX main power connector 2 x 8-pin ATX 12V power connectors

Features
Features	Multi-Graphics Technology: Support for NVIDIA Quad-GPU SLI and 2-Way NVIDIA SLI technologies Support for AMD Quad-GPU CrossFire and 2-Way AMD CrossFire technologies I/O Controller: iTE I/O Controller Chip H/W Monitoring: Voltage detection Temperature detection Fan speed detection Water cooling flow rate detection Overheating warning Fan fail warning Fan speed control * Whether the fan (pump) speed control function is supported will depend on the fan (pump) you install. Noise Detection BIOS: 2 x 128 Mbit flash Use of licensed AMI UEFI BIOS Support for DualBIOS PnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0 Unique Features: Support for APP Center * Available applications in APP Center may vary by motherboard model. Supported functions of each application may also vary depending on motherboard specifications. @BIOS AutoGreen Cloud Station EasyTune Easy RAID Fast Boot Game Boost Platform Power Management RGB Fusion Smart Backup Smart Keyboard Smart Survey System Information Viewer USB Blocker USB TurboCharger Support for Q-Flash Plus Support for Q-Flash Support for Xpress Install Bundled Software: Norton Internet Security (OEM version) cFosSpeed XSplit Gamecaster + Broadcaster (12 months license) Operating System: Support for Windows 10 64-bit

Additional Information
First Listed on Newegg	August 14, 2026

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