540-4990 Sun Fire 4x 900MHz CPU Uniboard

The 540-4990 is an internal data connectivity interface module engineered to deliver cost-effective network transformation and enhanced system stability within multi-node server frameworks. Functioning as a high-reliability core calculation and caching layer, this CPU/Memory Uniboard slides directly into the server chassis midplane to drive high-performance compute architectures. Factory-populated with four UltraSPARC III Cu superscalar processors running at 900MHz, it establishes high-efficiency routing pathways alongside integrated memory expansion slots to manage internal data processing pipelines across high-density databases, continuous multi-threaded enterprise workloads, and legacy hardware consolidations. Its fault-isolated layout manages internal bus communication cleanly, shielding core operational paths from signaling latency, packet drops, or single-point-of-failure throughput disruptions during continuous high-availability runtime operations.

Alternative Part Numbers

• 540-4990
• 540-4990-03
• 540-4991