397821-B21 HP 2.8GHz 1000MHz FSB 1MB L2 Cache Socket 940 AMD Opteron 854 Processor for ProLiant BL45P Blade Server

The 397821‑B21 is an HP‑branded AMD Opteron 854 processor designed for integration into the ProLiant BL45P blade server platform. Operating at a clock speed of 2.8 GHz, it features a 1000 MHz front‑side bus and a 1 MB L2 cache, delivering reliable performance for demanding server workloads. The CPU utilizes Socket 940, ensuring compatibility with the blade’s architecture and facilitating straightforward installation or replacement. As a server‑grade component, it offers the stability and scalability required for enterprise applications, making it a suitable upgrade or replacement part for maintaining optimal operation of HP ProLiant blade environments.