Aspeed Ast2500 Datasheet [upd]

The AST2500 is an integrated remote management processor from It serves as the intelligent BMC on motherboard designs, acting as a service processor that operates independently of the main CPU, operating system, and BIOS.

PCIe Gen 2.0 x1 interface for direct, high-bandwidth communication with the host processor/chipset. Aspeed Ast2500 Datasheet

The AST2500 is found across a wide range of server platforms. generation systems use the AST2500 as their BMC, providing VGA output at 1920 × 1200 resolution with 1 GB of DDR4 memory. The chip supports dedicated 1 GbE management networking alongside NCSI (Network Controller Sideband Interface) for shared port management. The AST2500 is an integrated remote management processor

Supported by platforms like AMI MegaRAC SP-X and open-source initiatives like OpenBMC . AST2500 - ASPEED Technology generation systems use the AST2500 as their BMC,

The transition from A1 to A2 fixed critical stability issues, particularly concerning the DDR memory controller. All mass‑production designs should be based on the A2 revision. The datasheet revision history documents this evolution, with explicitly marked as the release for chip revision A2, including the eSPI SUART1/SUART2 IRQ number fix and updated chip hardware revision ID.

The AST2500 bridges the host server motherboard with the management network through a vast array of legacy and modern interfaces. Host-to-BMC Interfaces