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Slim black desktop tower with front USB ports and optical drive

Lenovo

Lenovo ThinkCentre M90s Gen 5 12V4000QUS desktop PC i9-14900 64GB DDR5 1TB SSD

SKU CH-4X9M-WNCZR MPN 12V4000QUS

A slim desktop with a 14th Gen Core i9, 64 GB DDR5 and a 1 TB SSD, running Windows 11 Pro

  • TypeStudent / Home Office
  • Form FactorSlim/Small Form Factor
  • MonitorMonitor not included
  • Operating SystemWindows 11 Pro
  • External I/O Ports1x USB-C (USB 10Gbps / USB 3.2 Gen 2), with 15W charging; 2x
  • CPU TypeIntel Core i9 14th Gen
  • Intel Core i9-14900 delivers up to 5.8GHz turbo performance for demanding workloads
  • 64GB DDR5 at 4000MHz provides high-capacity, high-speed memory for multitasking
  • 1TB SSD offers fast storage for operating system and applications
  • Windows 11 Pro enables advanced security and management features
  • Slim form factor saves desk space while supporting DVD±RW drive

ThinkCentre M90s Gen 5 slim desktop

The Lenovo ThinkCentre M90s Gen 5 is a small-form-factor desktop PC built around an Intel Core i9-14900 processor with 64 GB of DDR5 memory at 4000 MHz and a 1 TB SSD. It ships with Windows 11 Pro and uses integrated Intel UHD Graphics 770 for display output. The slim chassis fits tight workspaces while providing a DVD±RW drive and Gigabit Ethernet.

Suited for office productivity and multi-tasking

This configuration serves professionals who need high single-thread speed and large memory capacity for business applications, virtualisation or data analysis without a discrete graphics card. Buyers who require dedicated GPU performance for 3D rendering, video editing or gaming should look at a different system. The compact form factor also limits internal expansion compared with tower designs.

64 GB DDR5 at 4000 MHz decides fit

The 64 GB DDR5 configuration running at 4000 MHz is the specification that determines whether this desktop matches the workload. Workloads that demand more memory capacity or faster memory speeds will need a platform that supports larger modules or higher frequencies. Systems with lower memory specifications will not deliver the same multi-tasking headroom.

Highlights

  • Intel Core i9-14900 delivers up to 5.8GHz turbo performance for demanding workloads
  • 64GB DDR5 at 4000MHz provides high-capacity, high-speed memory for multitasking
  • 1TB SSD offers fast storage for operating system and applications
  • Windows 11 Pro enables advanced security and management features
  • Slim form factor saves desk space while supporting DVD±RW drive

Specifications

BrandLenovo
SeriesThinkCentre
ModelThinkCentre M90s Gen 5
Part Number12V4000QUS
TypeStudent / Home Office
Form FactorSlim/Small Form Factor
MonitorMonitor not included
Operating SystemWindows 11 Pro
External I/O Ports1x USB-C (USB 10Gbps / USB 3.2 Gen 2), with 15W charging; 2x USB-A (USB 5Gbps / USB 3.2 Gen 1); 2x USB-A (USB 10Gbps / USB 3.2 Gen 2); 1x headphone / microphone combo jack (3.5mm); 1x microphone (3.5mm); 4x USB-A (USB 5Gbps / USB 3.2 Gen 1); 1x HDMI 2.1 TMDS; 2x DisplayPort 1.4a (HBR2, DSC); 1x Ethernet (RJ-45); 1x line-out (3.5mm)
CPU TypeIntel Core i9 14th Gen
CPU NameIntel Core i9-14900
CPU Base Frequency2.00GHz
Turbo Frequency5.8GHz
GPU/VGA TypeIntel UHD Graphics 770
Memory Capacity64GB DDR5
Memory Speed4000 MHz
SSD1TB
Optical Drive TypeDVD±RW
Screen SizeNo Screen
LAN SpeedGigabit Ethernet
WLAN802.11ax Wireless LAN
WiFi GenerationWi-Fi 6E
BluetoothBluetooth 5.3
Dimensions (H x W x D)Width: 3.6 Inch
Depth: 11.7 Inch
Height: 13.4 Inch
Weight5.3 Kg
Shipping weight9.98 kg
Package size533 × 394 × 191 mm

Questions about this item

How do I install the 64GB DDR5 memory in the ThinkCentre M90s Gen 5, and what step is often missed?

Power off, open the chassis, align the notch on the DDR5 module with the slot key, press firmly until the retention clips click, then verify 64GB appears in BIOS before booting Windows 11 Pro.

What maintenance will the DVD±RW optical drive need over time?

Clean the laser lens with a disc-cleaning kit when read errors appear, and replace the drive if writing fails after cleaning; no other scheduled service is required for the drive.

Which limit appears first when the Core i9-14900 runs at 5.8GHz turbo under sustained load?

The Intel UHD Graphics 770 thermal ceiling is reached before the CPU hits its power limit, causing graphics throttling during extended heavy workloads.

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