At the BIOSTAR booth at Computex, we found two new Intel Socket LGA1851 motherboards built around the Intel Z890 chipset, both ready to receive the new Core Ultra "Arrow Lake-S" processors. The two motherboards in question are the Z890 Valkyrie and Z890A-Silver. They use the ATX form factor (305 x 244 mm) and have 4x DDR5 slots, DP, HDMI, and SATA 3 connectors. Both motherboards use the same Realtek ALC 1220 7.1 channels HD for audio and come equipped with 1x 12 V RGB and 4x 5 V ARGB LED headers.

BIOSTAR Z890 Valkyrie sports 23 phases VRD, features 3x PCIe 5.0 x16 slots, USB 4 40 Gbps ports, 6x M.2 (M Key), 1x PCIe Gen 5 and 5x PCIe Gen 4 slots, and also dual Realtek 5 GbE + 2.5 GbE LAN ports. The slightly more common model, Z890A-Silver features 15 phases VRD, 1x PCIe 5.0 x16, 1 (x4) PCIe 4.0 x16, and 2x PCIe x1 slots, plenty of USB 3.2 Gen 2, Gen 1, and USB 2.0 ports but no USB 4. Also on the connectivity side, it has a single Realtek 2.5 GbE port.