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Lenovo ThinkStation P620 tower workstation in black finish

Lenovo

Lenovo ThinkStation P620 3945WX 12C 4.0GHz 96GB 1TB NVMe 2TB HDD P1000 W11 Pro

SKU CH-R92K-PK3AT

Tower workstation with a 12-core Threadripper PRO 3945WX at 4.0 GHz, 96 GB DDR4, 1 TB NVMe, 2 TB 7200 rpm HDD and Quadro P1000 graphics for CAD and engineering

  • TypeBusiness Desktops & Workstations
  • Form FactorTower
  • UsageWorkstation
  • Memory96GB
  • Storage1x 2TB HDD, 1x 1TB SSD M.2
  • GraphicsP1000
  • Threadripper PRO 12-core CPU at 4.0 GHz base powers heavy rendering
  • 96 GB DDR4 ECC memory handles large project files and virtual machines
  • 1 TB NVMe SSD plus 2 TB 7200 rpm HDD gives fast boot and ample storage
  • Quadro P1000 graphics drives CAD, 3D modelling and visualisation workloads
  • 1000 W supply supports GPU upgrades and future expansion cards

Professional CAD Workstation

The Lenovo ThinkStation P620 tower workstation targets engineers, designers and visualization specialists who need certified stability for 3D modeling, drafting and rendering workloads. A 12-core Threadripper PRO 3945WX processor running at 4.0 GHz base frequency with 4.30 GHz boost delivers workstation-class multi-core throughput. 96GB of DDR4 ECC memory across eight slots supports large assemblies, virtual machines and complex simulation datasets.

Suited For And Alternatives

This configuration fits professionals running CAD, BIM, CAE and content-creation applications that benefit from ECC memory, professional graphics drivers and a 1000W power supply for expansion. Buyers who need more than 1TB of high-speed NVMe capacity or multiple high-end GPUs should evaluate alternative platforms. Users whose workflows rely solely on single-threaded performance or consumer-grade applications will not utilize the workstation-class feature set.

Installation And Common Issues

The tower form factor provides tool-less access to the eight DIMM slots, two onboard PCIe Gen 4 NVMe M.2 bays and multiple PCIe Gen 4 expansion slots for straightforward upgrades. Common issues include forgetting to populate memory in the correct eight-channel order for maximum bandwidth, neglecting to install the required power cables for add-in cards, and overlooking driver updates for the Quadro P1000 graphics card under Windows 11 Pro.

Highlights

  • Threadripper PRO 12-core CPU at 4.0 GHz base powers heavy rendering
  • 96 GB DDR4 ECC memory handles large project files and virtual machines
  • 1 TB NVMe SSD plus 2 TB 7200 rpm HDD gives fast boot and ample storage
  • Quadro P1000 graphics drives CAD, 3D modelling and visualisation workloads
  • 1000 W supply supports GPU upgrades and future expansion cards

Specifications

BrandLenovo
SeriesThinkStation
ModelP620
TypeBusiness Desktops & Workstations
Form FactorTower
UsageWorkstation
Memory96GB
Storage1x 2TB HDD, 1x 1TB SSD M.2
GraphicsP1000
Power Supply1000W
Operating SystemWindows 11 Pro
Windows 11Ready
CPU Base Frequency4.00GHz
Graphics CardP1000
Memory Capacity96GB
Memory Slot (Total)8
Maximum Memory Supported1TB
SSD1TB
HDD2TB
HDD RPM7200rpm
Front USB4
Front Audio Ports1
Video Ports4 x Mini DisplayPort
Rear USB6
RJ451 port
Rear Audio Ports3 ports

Questions about this item

Will my existing DDR4 ECC RDIMM modules work with the 8-channel memory architecture?

The system provides 8 DIMM slots for DDR4 ECC RDIMM memory in an 8-channel configuration and currently has 96GB installed, leaving room to add compatible modules up to the 1TB maximum.

Can I keep using my older PCIe add-in cards in the available expansion slots?

The workstation supports multiple PCIe Gen 4 expansion cards for additional GPU, networking and NVMe storage, so existing PCIe cards that fit the form factor will function at their rated generation speed.

How can I verify the 12-core Threadripper PRO 3945WX is running at its 4.0 GHz base clock after setup?

Open Task Manager or a hardware monitoring utility and confirm the processor shows 12 cores, 24 threads and a base frequency of 4.0 GHz under idle or light load conditions.

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