HPE Intel Xeon Platinum (5th Gen) 8558 Octatetraconta-core (48 Core) 2.10 GHz Processor Upgrade

The HPE Intel Xeon Platinum (5th Gen) 8558 Octatetraconta-core upgrade is engineered to deliver extraordinary compute power for data centers, enterprise servers, and high-demand HPC environments. With an astonishing 48 cores and 96 threads, this upgrade is built to handle massive parallel workloads, virtualization density, and data-intensive analytics with ease. Designed for the Socket LGA-4677 platform, it offers a straightforward upgrade path to unleash superior multi-tasking performance on supported HP enterprise systems without complex re-wiring. The processor features a generous 260 MB L3 cache to accelerate data access, a robust 2.10 GHz base clock for sustained performance, and a 330 W thermal design power that supports demanding workloads around the clock. With 64-bit processing and enterprise-grade reliability, this upgrade is tailored for 24x7 operation, exceptional fault tolerance, and scalable performance across modern data centers. The combination of high core count, advanced cache, and broad compatibility makes it a compelling choice for virtualization hosts, large-scale databases, AI inference, and simulation workloads where every thread counts.

• Unmatched multi-core performance: Harness 48 cores and 96 threads to accelerate parallel workloads such as virtualization, large-scale databases, and analytics pipelines. The high core count enables dramatic improvements in throughput, enabling you to run more virtual machines, containers, or parallel tasks per host while maintaining responsive latency. This level of parallelism is ideal for dense consolidation, real-time data processing, and complex simulation workloads that demand sustained throughput across dozens of simultaneous threads.
• Massive cache and data locality: With a 260 MB L3 cache, this Xeon Platinum upgrade minimizes memory latency and keeps frequently accessed data closer to the cores. The cache’s large size helps reduce bottlenecks in data-intensive operations, accelerates in-memory analytics, and improves performance for workloads with large working sets, such as enterprise databases, real-time analytics, and scientific simulations.
• High reliability for 24x7 workloads: Built for enterprise and data center environments, this processor emphasizes reliability features, error detection, and fault tolerance designed to keep critical services online. In addition to 64-bit processing support, the upgrade integrates with server-class memory architectures and enterprise features that help maintain uptime, data integrity, and consistent performance under load.
• Powerful turbo/overclocking potential: The configuration notes an overclocking speed up to 4 GHz, offering a pathway to extra headroom when paired with appropriate cooling and system support. In environments where workloads peak, this capability can translate into shorter processing times for bursty tasks, faster data processing, and improved responsiveness during peak demand while maintaining stability and data integrity when properly configured.
• Compact upgrade path for HP servers: The LGA-4677 socket and compatibility with HP enterprise platforms enable a straightforward upgrade path that minimizes downtime and investment. This makes it an attractive option for organizations looking to extend server life, improve performance per watt, and scale compute resources without a full system overhaul. The upgrade aligns with modern data center demands, including virtualization, AI-assisted workloads, and large-scale transaction processing.

Technical Details of HPE Intel Xeon Platinum (5th Gen) 8558 Octatetraconta-core (48 Core) 2.10 GHz Processor Upgrade

• Core Count: 48
• Threads: 96
• Base Clock: 2.10 GHz
• L3 Cache: 260 MB
• Socket: LGA-4677
• TDP: 330 W
• 64-bit Processing
• Overclocking Speed: Up to 4.0 GHz

How to install HPE Intel Xeon Platinum (5th Gen) 8558 Octatetraconta-core (48 Core) 2.10 GHz Processor Upgrade

• Verify compatibility: Confirm that your HP server motherboard supports the LGA-4677 socket and that the BIOS version is compatible with the Xeon Platinum 8558 upgrade. Review HP’s hardware compatibility list and update the BIOS to the latest release before installation to ensure proper recognition and stabilization of the processor.
• Prepare the workspace: Power down the server, unplug all cables, and ground yourself to prevent static discharge. Open the server chassis and locate the CPU socket. Clean the socket area if needed and ensure adequate airflow for cooling during and after installation.
• Remove the existing CPU (if upgrading from a previous processor): Release the CPU retention mechanism, carefully lift the heatsink, and remove the existing processor from the socket. Apply a fresh, thin layer of thermal interface material (TIM) if you are reinstalling a heatsink or replacing the cooler, following the manufacturer’s guidelines for TIM amount and cooling contact.
• Install the new CPU: Align the 48-core processor with the LGA-4677 socket according to the marked orientation. Gently seat the processor into the socket without applying excessive pressure. Engage the socket locking mechanism to secure the processor in place. Reattach the heatsink or cooling solution, ensuring it makes full contact with the processor surface for optimal heat dissipation.
• Power on and configure: Reconnect power and boot the server. Enter the BIOS/UEFI setup to verify that the new processor is detected and to configure any platform-specific settings (e.g., turbo limits, power profiles, NUMA settings). Run a memory and CPU stress test to ensure stability, and monitor temperatures to confirm adequate cooling under load. Install or update any required microcode or firmware patches as recommended by HP to ensure full feature support and reliability.

Frequently asked questions

• Q: Is this processor compatible with all HP servers using LGA-4677?
  A: Compatibility depends on the specific HP model and motherboard revision. Always consult HP’s official compatibility matrix for your exact server model and ensure BIOS support before upgrading. The LGA-4677 socket is a key requirement, but platform-specific validation is essential for stability and warranty compliance.
• Q: What workloads benefit most from the 48-core configuration?
  A: Virtualization hosts, large-scale databases, enterprise analytics, HPC simulations, and AI inference workloads typically see the greatest gains from high core counts and aggressive parallelism. The large cache helps with data-intensive tasks, while the 96 threads improve thread-level parallelism across concurrent services.
• Q: Can I overclock this Xeon Platinum processor?
  A: The spec notes an overclocking potential up to 4.0 GHz under supported configurations. In enterprise servers, overclocking depends on motherboard, cooling, power delivery, and firmware policies. Ensure proper cooling, stability testing, and vendor guidance before enabling any turbo or non-standard settings.
• Q: How important is the 260 MB L3 cache for performance?
  A: A large L3 cache reduces latency by storing frequently accessed data closer to the cores, which is especially beneficial for large-scale analytics, database queries, and memory-intensive workloads. It helps smooth performance during data re-use and complex computation.
• Q: What about power and cooling requirements?
  A: With a 330 W TDP, this upgrade demands robust server cooling and a power supply that can sustain sustained load. Ensure your cooling subsystem, air flow, and ambient temperatures are adequate for long-running workloads to prevent throttling and maintain system stability.