(Credit: Asus/AMD)
Asus has launched a beta BIOS for its Crosshair X870E motherboards that may be the first to support AMD EXPO Ultra Low Latency (ULL), VideoCardz reports.
This profile automatically tunes and overclocks memory to deliver better performance, resulting in an average 4% improvement in frames per second compared with standard EXPO profiles, AMD claims. The only catch is that you need a compatible memory kit to take advantage of it, but those should be launching soon.
AMD announced its Ultra Low Latency EXPO profiles at Computex 2026 as part of its EXPO 1.2 update. Like EXPO and XMP profiles, the idea is to make memory overclocking and timing tuning more accessible to a wider range of enthusiasts and gamers. With ongoing memory shortages and component price hikes, too, these kinds of free software tweaks are much appreciated, though not if they lead to a price premium for the supporting kits.
To use EXPO's ULL capabilities, enthusiasts need compatible memory, motherboards, and BIOS. Asus is moving to make two of those steps more viable, with the introduction of its new ROG Crosshair X870E Series Beta Bios 2305. It's applicable for all ROG Crosshair X870E Hero, Hero BTF, Dark Hero, Apex, Extreme, Glacial, Crosshair 2006, and Crosshair X870E Edition 20 motherboards, and is available to download right now. You can find the specific BIOS downloads for each of these motherboards on the Asus ROG forum.
If you have one of these boards and want to play around with its new features, download and update your motherboard firmware to AGESA ComboAM5 1.3.0.1b. Asus makes it clear in the installation instructions that you should avoid using older versions of CMO files, as they may cause problems with this beta BIOS release.
Although you'll need a compatible EXPO ULL memory kit to use the automated overclocking feature, some of the underlying tweakable settings it adjusts are also more readily available in this release. Within the Asus BIOS' Ai Tweaker and DRAM Timing Control sections, users can find Tccd_L, TccdL_WR, and TccdL_WR2, all of which offer low-level timing control for installed memory. Adjusting these timings can help improve performance by reducing memory latency.
AMD suggested during its original EXPO ULL unveiling at Computex that we could expect compatible memory kits from various manufacturers to show up before the end of June, so anyone running this new BIOS won't have long to wait. Pricing for these new kits, however, has yet to be unveiled. Considering the 2026 memory situation, we wouldn't expect it to be cheap.
About Our Expert
Jon Martindale is a tech journalist from the UK, with 20 years of experience covering all manner of PC components and associated gadgets. He's written for a range of publications, including ExtremeTech, Digital Trends, Forbes, U.S. News & World Report, and Lifewire, among others. When not writing, he's a big board gamer and reader, with a particular habit of speed-reading through long manga sagas.Â
Jon covers the latest PC components, as well as how-to guides on everything from how to take a screenshot to how to set up your cryptocurrency wallet. He particularly enjoys the battles between the top tech giants in CPUs and GPUs, and tries his best not to take sides.
Jon's gaming PC is built around the iconic 7950X3D CPU, with a 7900XTX backing it up. That's all the power he needs to play lightweight indie and casual games, as well as more demanding sim titles like Kerbal Space Program. He uses a pair of Jabra Active 8 earbuds and a SteelSeries Arctis Pro wireless headset, and types all day on a Logitech G915 mechanical keyboard.
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