GIGABYTE in its Computex 2027 booth showcased a huge lineup of next-generation Socket LGA1851 motherboards based on the top Intel Z890 chipset, which are ready for Intel's Core Ultra "Arrow Lake-S" desktop processors. GIGABYTE has taped out the motherboard model names, so all mentions of Z890 in this article are based on our assumption that it's the name of the next-gen Intel chipset. These chips are expected to bring generational IPC increases from their "Lion Cove" P-cores, "Skymont" E-cores, a more complete PCIe Gen 5 I/O (including for the CPU-attached NVMe slots), and other innovations. If the socket looks similar to the LGA1700, it's because it's identical in physical dimensions, and you can use your LGA1700 cooler on the LGA1851, but the processors are not inter-compatible. The company also showcased a few AMD Socket AM5 motherboards based on the new AMD X870E chipset.

The first motherboard to catch our eye is the Z890 AORUS Tachyon. This board is geared for record-seeking CPU overclocking. The processor is wired to just two DDR5 memory slots (1 DIMM per channel, the best configuration for memory OC); and the CPU-attached NVMe slots being close to the socket, with a combined heatsink. The only expansion slots are a PCI-Express 5.0 x16, and what could be a Gen 4 x8. There are plenty of overclocker-friendly controls, voltage measurement points, diagnostic LEDs, and status displays, scattered all over the board.

We've known for a while that the Z890 will be Intel's next-generation high-end desktop motherboard chipset for the Core Ultra "Arrow Lake-S" desktop processors in the LGA1851 package, and that Intel's first wave of processors and motherboards will target PC enthusiasts like they usually do—with just the unlocked K/KF processor SKUs and motherboards based on the Z890. We are now learning that the B860 will indeed be the company's mid-tier chipset for the processor. MSI has registered at least four motherboard models based on the B860, which showed up on Device Report.

These four motherboard models are the MPG B860M Edge Ti WiFi, the MPG B860I Edge WiFi, the MAG B860 Tomahawk WiFi, and the MAG B860M Mortar WiFi, with MSI internal product numbers 7E38, 7E39, 7E40, and 7E43, respectively. There's no word on whether B860 will even be available when the processors debut. Going by past trends, the mid-tier chipset and 65 W-class processor SKUs usually come out in the Q1 following a new processor generation launch, which means we could see these sometime early-2025. The B860 will lack CPU overclocking capabilities, and probably feature a narrower chipset bus, and fewer PCIe general purpose lanes than the Z890. As for MSI's Z890 motherboard lineup, there are at least eight models recorded—the MEG Z890 GODLIKE, the MEG Z890 Ace, MEG Z890 Unify-X, MPG Z890 Carbon WiFi, MPG Z890 Edge Ti WiFi, MPG Z890I Edge Ti WiFi, MAG Z890 Tomahawk WiFi, and the PRO Z890-P WiFi.