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Lenovo ST650 V3 rack server chassis in matte black finish

Lenovo

Lenovo 4XG7A85288 ST650 V3 Xeon 6426Y 16C 2.5GHz 185W rack server

SKU CH-WEAX-CFDQT MPN 4XG7A85288

Rack server with a 16-core Xeon processor at 2.5 GHz, 32 threads and 185 W TDP

  • TypeRack
  • 16 cores deliver 32 threads for parallel workloads
  • 5 GHz base clock with 4.10 GHz turbo for burst performance
  • 50 MB L3 cache reduces data latency
  • 185 W TDP fits dense rack deployments
  • Socket LGA-4677 enables ST650 V3 integration

Lenovo ST650 V3 Xeon 6426Y Server

The Lenovo ST650 V3 is a rack-mount server system built around an Intel Xeon Gold 6426Y processor. It delivers 16 cores and 32 threads at a base frequency of 2.5 GHz with a maximum turbo of 4.10 GHz. The CPU provides 37.50 MB of L3 cache and fits the LGA-4677 socket with a 185 W thermal design power.

Suited for dense compute workloads

This configuration suits environments that need high core counts in a standard rack form factor, such as virtualisation hosts or database nodes. It is not intended for buyers who require integrated graphics output or single-thread optimisation above all else. Organisations needing a tower chassis or lower power envelope should evaluate other platforms.

Sustained 185 W operation under load

Under continuous multi-threaded load the processor operates at its 185 W rating, so cooling and power delivery must handle that steady draw. The 16-core design maintains consistent throughput across 32 threads without relying on short burst behaviour. Rack airflow and adequate power distribution are essential for stable long-running tasks.

Highlights

  • 16 cores deliver 32 threads for parallel workloads
  • 5 GHz base clock with 4.10 GHz turbo for burst performance
  • 50 MB L3 cache reduces data latency
  • 185 W TDP fits dense rack deployments
  • Socket LGA-4677 enables ST650 V3 integration

Specifications

TypeRack
Shipping weight1.36 kg
Package size198 × 170 × 150 mm

Questions about this item

Does the ST650 V3 chassis accept a Socket LGA-4677 processor?

Yes, the kit includes the Xeon 6426Y which mounts in an LGA-4677 socket on the system board.

Can the 185 W Xeon 6426Y share the existing power infrastructure with lower-wattage CPUs?

The 185 W TDP requires cooling and power delivery rated for that level; verify the chassis power supplies and thermal solution support 185 W.

How can I confirm the 16-core Xeon 6426Y is running at its 2.5 GHz base frequency after installation?

Check BIOS or operating-system CPU information — it should show 16 cores, 32 threads and a base clock of 2.5 GHz.

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