The Gigabyte B850 Eagle Ice is a full-size ATX motherboard measuring 305 × 244 mm, built around the AM5 socket with a single CPU socket and the B850 chipset. It supports easy overclocking and comes equipped with dual BIOS and RGB lighting, though it does not include a clear CMOS button for quick BIOS resets. The board outputs video via HDMI 2.1 but lacks integrated graphics and has no built-in CPU. Wi-Fi and Bluetooth are not present on this model, so wireless connectivity requires a separate adapter. Gigabyte covers the board under a 3-year warranty.
The board features four DDR5 memory slots arranged across two channels, supporting a maximum capacity of 256 GB. Standard RAM speeds top out at 5200 MHz, while overclocking can push that figure up to 8200 MHz. ECC memory is not supported on this board.
The rear I/O panel provides a total of nine USB ports: two USB 3.2 Gen 2 Type-A, two USB 3.2 Gen 1 Type-A, one USB 3.2 Gen 1 Type-C, and four USB 2.0 ports. Higher-bandwidth standards such as USB 3.2 Gen 2x2, USB 4, Thunderbolt 3, and Thunderbolt 4 are not available. For display output, the board includes one HDMI port and one DisplayPort, while DVI and VGA connectors are absent. Networking is handled through a single RJ45 port, and legacy input device support is covered by one PS/2 port. There are no eSATA ports on this board.
Internal connectivity is well-covered, with three M.2 sockets and four SATA 3 connectors for storage, while SATA 2, U.2, and mSATA are not available. USB expansion headers include two USB 3.2 Gen 1 connectors, two additional USB 3.0 headers, and four USB 2.0 headers for front-panel or accessory use. Thermal management is supported by six fan headers, and a TPM connector is present for security module installation.
The board offers four expansion slots in total: one PCIe 5.0 x16 slot as the primary graphics slot, one PCIe x4 slot, and two PCIe x1 slots. Older slot standards — including PCIe 4.0 x16, PCIe 3.0 x16, PCIe 2.0 x16, PCIe x8, and legacy PCI — are not present on this board.
The onboard audio supports 7.1-channel output and is accessible through three analog audio connectors on the rear panel. A S/PDIF optical output is not included on this board.
The board supports four RAID configurations: RAID 0, RAID 1, RAID 5, and RAID 10 (1+0), covering common setups for both performance and redundancy. RAID 0+1 is not supported.