HPE 870591-B21 XL230k Gen10 Xeon Gold 6134 Rear Kit

• Brand: HPE
• SKU / Part Number: 870591-B21
• Product Family: HPE ProLiant XL230k Gen10
• Product Type: Rear Processor Kit
• Processor: Intel Xeon Gold 6134
• Processor Family: Intel Xeon Scalable Processors
• Code Name: Skylake
• Lithography: 14 nm
• CPU Cores: 8
• CPU Threads: 16
• Base Frequency: 3.20 GHz
• Maximum Turbo Frequency: 3.70 GHz
• L3 Cache: 24.75 MB
• TDP: 130W
• Maximum UPI Links: 3
• Memory Type: DDR4
• Maximum Memory Speed: DDR4-2666
• Maximum Memory Capacity: 768 GB
• Memory Channels: 6
• ECC Memory: Supported
• PCI Express Revision: PCIe 3.0
• Maximum PCIe Lanes: 48
• Processor Socket / Package: FCLGA3647
• Processor Position: Rear
• Compatible Server: HPE ProLiant XL230k Gen10
• Matching Front Kit: 870591-B22
• Compatibility — Ultra Short: HPE XL230k Gen10 rear CPU
• Intel Product Status: Discontinued
• Intel Launch Date: Q3 2017
• End of Servicing Updates: December 31, 2023

Why Choose This Product?

• High-frequency CPU profile: The 3.20 GHz base frequency makes this processor particularly relevant when per-core performance is a priority.
• Balanced 8-core architecture: Provides 8 cores and 16 threads without moving to a much higher-core, higher-power processor configuration. 
• HPE platform-specific option: The 870591-B21 SKU is designed around the XL230k Gen10 rear processor position, helping reduce configuration uncertainty.
• Substantial CPU cache: Its 24.75 MB L3 cache provides useful on-chip capacity for frequently accessed data and instructions. 
• Defined 130W thermal envelope: Provides a known processor TDP for data-center power and cooling calculations. 
• Memory expansion potential: Up to 768 GB of supported processor memory provides substantial capacity for compatible memory-intensive applications. 
• Simplified parts identification: The B21 designation clearly distinguishes the rear kit from the matching 870591-B22 front processor kit.
• Useful for infrastructure lifecycle management: For organizations operating compatible XL230k Gen10 systems, sourcing the exact processor SKU can be more practical than replacing an entire compute node.