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ASRock Z390 Phantom Gaming 4 Motherboard

ASRock Z390 Phantom Gaming 4

ASRock Z390 Phantom Gaming 6 Motherboard

ASRock Z390 Phantom Gaming 6

Supermicro X9DRD-7LN4F Motherboard

Supermicro X9DRD-7LN4F

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General
Motherboard type	ATX	ATX	Extended ATX
Processor socket	LGA 1151	LGA 1151	LGA 2011

Memory
Supported memory bus clock	2400 MHz 2133 MHz 2666 MHz 2800 MHz 2933 MHz 3200 MHz 3733 MHz 3600 MHz 3800 MHz 3866 MHz 4000 MHz 4133 MHz 4300 MHz 4266 MHz	2400 MHz 2133 MHz 2666 MHz 2800 MHz 2933 MHz 3200 MHz 3733 MHz 3600 MHz 3800 MHz 3866 MHz 4000 MHz 4133 MHz 4300 MHz 4266 MHz	1600 MHz 1333 MHz 1066 MHz 800 MHz
RAM technology	DDR4	DDR4	DDR3
Memory slots type	DIMM	DIMM	N/A
Maximum RAM size	64 GB	64 GB	512 GB
Number of memory slots	4	4	N/A
Unbuffered memory	yes	yes	N/A
Memory channels	Dual	Dual	N/A
ECC	yes	yes	N/A
Non-ECC	yes	yes	N/A
Extreme Memory Profile (XMP)	yes	yes	N/A

Technical details
Compatible processor series	Intel Core i3 Intel Core i5 Intel Core i7 Intel Core i9	Intel Core i3 Intel Core i5 Intel Core i7	N/A
Maximum number of processors	1	1	2
Data bus transfer rate	N/A	N/A	8 GT/s

BIOS
BIOS type	UEFI AMI	UEFI AMI	AMI
BIOS features	Multilingual BIOS UEFI BIOS SMBIOS 2.7 support ACPI 6.0 support	Multilingual BIOS UEFI BIOS SMBIOS 2.7 support Secure Backup UEFI Technology ACPI 6.0 support	APM 1.2 support ACPI 1.0 support DMI 2.3 support ACPI 2.0 support SMBIOS 2.3 support IPMI support ACPI 3.0 support UEFI BIOS ACPI 4.0 support
BIOS memory size	128.0 mB	256.0 mB	N/A
System Management BIOS (SMBIOS) version	2.7	2.7	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	9.61 in	12.99 in