GIGABYTE adds HUDIMM support to Intel 800, 700 and 600 series motherboards

GIGABYTE has released BIOS updates for its Intel 800, 700 and 600 series motherboards, adding support for HUDIMM memory. The company refers to the standard as One Sub-channel DDR5. HUDIMM uses one 32-bit DDR5 sub-channel per module instead of the two 32-bit sub-channels used by standard DDR5 UDIMMs. This allows memory vendors to use fewer DRAM ICs per module. The trade-off is lower capacity and lower bandwidth per stick.
Supported on 600, 700 and 800 motherboards
GIGABYTE says the new BIOS enables automatic detection and initialization of HUDIMM modules. Users do not need to change additional settings after updating the BIOS. The update applies to the company’s Intel 800, 700 and 600 series motherboard lineup. This means it is supported even with Alder Lake CPUs, which is interesting.
The company also confirms support for mixed configurations. For example, users can pair an 8GB HUDIMM module with a 16GB standard UDIMM to create a 24GB configuration. GIGABYTE says this setup can use three DDR5 sub-channels in total.
This follows ASRock , which already announced HUDIMM support for Intel 600, 700 and 800 series motherboards. ASUS has also started rolling out beta BIOS support for HUDIMM on Intel Z890, B860, Q870 and H810 motherboards. MSI has also started enabling HUDIMM support on selected Intel boards, so GIGABYTE is now joining the broader board vendor rollout.
There’s something wrong with the Gigabyte press photo
Just to let you know, there is ‘an issue’ with the memory slots in the Gigabyte image used for the press release. The irony is that it kinda looks like half the subchannel DIMM.
Source: Gigabyte PR