The A4125-66516 is a HP processor boards component. Pro Disk Network sells the A4125-66516 for $172.62 with same-day US shipping and a 30-day return guarantee.
Reviewed By
Reviewed by:Pro Disk Network Engineering Team — . Specifications, compatibility, and pricing for the A4125-66516 are shown on this page.
Trust Signals
US-based LLC — 7345 W Sand Lake Rd, STE 210, Office 3208, Orlando, FL 32819
Same-Day US Shipping — orders before 3pm ET ship today via UPS
30-Day Returns — pre-paid label on DOA and defective items
Quick Answer: What socket does the A4125-66516 use?
Confirm the socket against your motherboard's CPU support list - Intel Xeon Scalable spans LGA 3647 (1st/2nd gen), LGA 4189 (3rd gen Ice Lake), and LGA 4677 (4th/5th gen Sapphire/Emerald Rapids). A BIOS update is often required for newer steppings even on the same socket. Email sales@prodisknetwork.com with your motherboard model for a compatibility check.
How fast does the A4125-66516 ship?
A4125-66516 orders placed before 3 pm ET ship the same business day from US warehouses. Delivery is next business day to most metro ZIPs via FedEx/UPS overnight; ground delivery covers remaining US in 1-4 business days.
The A4125-66516 is deployed by US enterprises, MSPs, government, and education customers across multiple infrastructure scenarios. Below are the most common deployment patterns Pro Disk Network sees in real-world orders.
Hyper-V Cluster Node — Windows Server Datacenter licenses by core, but Hyper-V scales linearly. Higher-clock, mid-core SKUs win for transactional workloads.
Citrix VDI Pool — Frequency-sensitive — prefer high-clock 16–18 core SKUs over high-core-count parts to maintain user-perceived snappiness.
Kubernetes / Tanzu Workers — Higher core count amortises better across many small Pods. EVC mode planning matters for live-migrate parity.
AI Inference Host — Sapphire Rapids and Emerald Rapids include AMX silicon for INT8 inference acceleration — meaningful uplift for BERT, ResNet, and LLM serving.
What is the A4125-66516?
The A4125-66516 is a HP server-class processor, manufactured by HP. Pro Disk Network ships this part new and certified-refurbished from our US warehouse with same-day dispatch on orders placed before 3 PM ET, backed by a 30-day return guarantee.
Pros & Cons of A4125-66516
Pros
Same-day shipping from our US warehouse cuts deployment lead time
Cons
Older microarchitecture — not appropriate for new AI/AMX workloads
Not always silicon-binned for overclocking
Stepping mismatch with newer revisions can require microcode update
Frequently Asked Questions about A4125-66516
Is the A4125-66516 a genuine HP part?
Yes. Pro Disk Network sources every A4125-66516 as factory-original HP inventory. New units arrive sealed in OEM packaging; refurbished units are pulled from decommissioned HP servers, surface-tested, and re-warranted by Pro Disk Network for 90 days.
What socket does the A4125-66516 use?
Confirm the socket against your motherboard's CPU support list - Intel Xeon Scalable spans LGA 3647 (1st/2nd gen), LGA 4189 (3rd gen Ice Lake), and LGA 4677 (4th/5th gen Sapphire/Emerald Rapids). A BIOS update is often required for newer steppings even on the same socket. Email sales@prodisknetwork.com with your motherboard model for a compatibility check.
How fast does the A4125-66516 ship?
A4125-66516 orders placed before 3 pm ET ship the same business day from US warehouses. Delivery is next business day to most metro ZIPs via FedEx/UPS overnight; ground delivery covers remaining US in 1-4 business days.
What is the warranty on the A4125-66516?
New A4125-66516 units carry the full HP manufacturer warranty (typically 1 to 5 years depending on product line). Refurbished and bulk-OEM units include a Pro Disk Network advance-replacement warranty (90 days refurbished). DOA replacement is free within 30 days of receipt.
Do you offer bulk pricing for the A4125-66516?
Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.
Other parts that share the A4125 series prefix — useful when sourcing matched lots, hot-spare pools, or capacity-tier expansions.
A4125-60001 — A4125-60001 - HP 550-Watts Power Supply for C200 C240 C360 Workstation — $411.97
A4125-60016 — A4125-60016 - HP C360 System Board — $232.82
A4125-60021 — A4125-60021 - HP I/ O Board Assembly for C200 WorkStation — $136.45
A4125-66501 — A4125-66501 - HP Backplane Board for Visualize C-Class Workstation — $496.84
A4125-66505 — A4125-66505 - HP PCI Backplane Board for Visualize C240 Workstation — $233.68
A4125-66510 — A4125-66510 - HP 200MHz Processor Board for 9000/C200 Servers — $194.37
A4125-66512 — A4125-66512 - HP Processor Board for C240 Workstation — $331.58
A4125-66520 — A4125-66520 - HP I/O Connector Board for C-Class — $73.68
A4125-66521 — A4125-66521 - HP I/O Connector Board for C200 WorkStation — $194.74
A4125-66531 — A4125-66531 - HP Drive Interconnect Board for Visualize C200 UNIX Workstation — $138.95
A4125-69010 — A4125-69010 - HP System Processor Board — $232.82
A4125-69012 — A4125-69012 - HP 236MHz System Processor Board for 700/C240 Workstations — $232.82
Pro Disk Network Buyer’s Guide: Processor Boards
Socket Compatibility, EVC Mode, and BIOS Revision Planning
For VMware vSphere clusters, EVC (Enhanced vMotion Compatibility) mode dictates which CPU generations can coexist in the same cluster while still supporting live migration. Adding a newer-generation A4125-66516 to a cluster with older CPUs requires setting EVC to the older baseline, which disables newer instructions on the new CPU. Plan EVC mode at cluster creation time; changing it later requires powering off the cluster.
AI Workloads, AMX, and the Inference Performance Story
Plan memory bandwidth alongside the CPU: AMX inference is memory-bandwidth sensitive. A A4125-66516 paired with insufficient memory channels (e.g., DDR5-4800 in fewer than 8 channels per socket) will underperform its theoretical peak by 30-40%. Confirm motherboard channel count and DIMM population before ordering.