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Asus TUF X299 MARK 2 Motherboard

Asus TUF X299 MARK 2

MSI X299 SLI PLUS Motherboard

MSI X299 SLI PLUS

Supermicro H8DAR-T Motherboard

Supermicro H8DAR-T

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General
Motherboard type	ATX	ATX	Extended ATX
Processor socket	LGA 2066	LGA 2066	Socket 940

Memory
Supported memory bus clock	2400 MHz 2133 MHz 2666 MHz 3600 MHz 4000 MHz 4133 MHz	2400 MHz 2133 MHz 2666 MHz 2800 MHz 3000 MHz 3200 MHz 3300 MHz 3400 MHz 3333 MHz 3466 MHz 3733 MHz 3600 MHz 3866 MHz 4000 MHz 4133 MHz 4266 MHz	400 MHz 333 MHz 266 MHz
RAM technology	DDR4	DDR4	DDR
Memory slots type	DIMM	DIMM	N/A
Maximum RAM size	128 GB	128 GB	32 GB
Number of memory slots	8	8	N/A
Unbuffered memory	yes	N/A	N/A
Non-ECC	yes	N/A	N/A
Memory channels	N/A	Quad	N/A
Extreme Memory Profile (XMP)	N/A	yes	N/A

Technical details
Compatible processor series	Intel Core i7	Intel Core i7 Intel Core i7 Extreme Edition	N/A
Maximum number of processors	1	1	2
Maximum number of SMP processors	N/A	1	N/A

BIOS
BIOS type	UEFI AMI	UEFI AMI	AMI
BIOS features	WfM 2.0 support Multilingual BIOS USB BIOS Flashback UEFI BIOS ASUS EZ Flash 3 DMI 3.0 support SMBIOS 3.0 support ACPI 6.0 support	Dual BIOS BIOS FlashBack+ MSI ClickBIOS 5	DMI 2.3 support ACPI 2.0 support SMBIOS 2.3 support IPMI support
BIOS memory size	128.0 mB	256.0 mB	N/A
ACPI version	6.0	6.0	N/A

Dimensions
Width	12.01 in	12.01 in	12.01 in
Depth	9.61 in	9.57 in	13.07 in