ASUS is preparing new BIOS updates for its AM5 motherboards that could improve memory latency on selected CXMT-based DDR5 memory modules. Multiple motherboard vendors have already added support for CXMT-based DDR5 memory modules a while ago, and many mainstream motherboards have made new records with CXMT DDR5 memory. Now ASUS is set to add further enhancements for these modules. The beta BIOS versions are already available for several 600 and 800 series motherboards, including X870, B850, X670, and B650 models, while wider availability is expected through the upcoming releases. The new BIOS builds are based on AMD AGESA ComboAM5 PI 1.3.0.1d, which appear to deliver more than just basic optimizations.

A BIOS-level tuning for CXMT DDR5. The BIOS update targets CXMT-based DDR5 memory modules with additional low-latency tuning. The AGESA ComboAM5 PI 1.3.0.1d is the AMD firmware base, and the BIOS builds are the vendor implementation. The low-latency tuning is the specific change: the memory training and subtimings adjustments for CXMT memory. The CXMT DDR5 hitting 9000 MT/s on the AMD X870E platform is the context: the memory is fast, and the BIOS tuning is the lever that gets the latency down.

This is a BIOS-level optimization for a specific memory vendor. The AGESA ComboAM5 PI 1.3.0.1d is the firmware base, and the low-latency tuning is the specific change.

The performance figures, the wider availability timeline, and whether the tuning is CXMT-specific or general. ASUS has not disclosed any information regarding the performance figures, and the optimization is expected to bring memory training and subtimings adjustments, but the figures are not given.

Whether the BIOS updates ship widely, whether the performance figures are published, and whether the CXMT DDR5 tuning extends to other vendors. For the motherboard market, a BIOS-level tuning for a specific memory vendor is a platform optimization, and the AGESA ComboAM5 PI 1.3.0.1d is the firmware base that makes it work. The 9000 MT/s figure is the context: the memory is fast, and the BIOS tuning is the lever that gets the latency down, which is the specific change that the AGESA ComboAM5 PI 1.3.0.1d base enables.

ASUS is preparing BIOS updates for AM5 motherboards that target CXMT DDR5 with additional low-latency tuning, based on AMD AGESA ComboAM5 PI 1.3.0.1d. A BIOS-level optimization for a specific memory vendor.