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Green printed circuit board with black memory chips and gold edge contacts

OWC

OWC 16GB DDR5 4800 CL40 262-pin SODIMM memory upgrade

SKU CH-MCH9-XRVYG

A 16 GB DDR5 SODIMM running at 4800 MHz CL40 for Lenovo ThinkCentre M80q Gen 3, M90a Pro Gen 3 and M90q Gen 3 systems

  • Capacity16GB
  • Type262-Pin DDR5 Non-ECC SODIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.1V
  • ECCNo
  • 16 GB DDR5 4800 CL40 boosts multitasking speed
  • JEDEC and RoHS compliant for warranty-safe upgrade
  • 1 V low voltage reduces system power draw
  • Single 1Rx8 rank simplifies installation in tight slots
  • Tested compatible with ThinkCentre M80q M90a M90q Gen 3

Compatible Lenovo ThinkCentre upgrade

This 16GB DDR5 SODIMM is built for the Lenovo ThinkCentre M80q Gen 3, M90a Pro Gen 3 and M90q Gen 3. It replaces Lenovo part 4X71K20069 and installs as a straightforward DIY upgrade for those systems. The module is JEDEC-standard and ROHS compliant for a warranty-safe improvement.

Thermals and power at 1.1V

Operating at 1.1V, the unbuffered non-ECC module draws minimal power and runs without a heat spreader. The low voltage keeps thermals modest inside compact small-form-factor and all-in-one chassis. Silent operation is assured because the part has no active cooling.

Deciding specification: 4800 CL40 DDR5

The module runs at DDR5 4800 with CL40 latency in a 262-pin 1Rx8 layout. Buyers whose Lenovo system requires a different speed, latency or pin count cannot use this part. It is also unsuitable for any platform that demands ECC or registered memory.

Puntos fuertes

  • 16 GB DDR5 4800 CL40 boosts multitasking speed
  • JEDEC and RoHS compliant for warranty-safe upgrade
  • 1 V low voltage reduces system power draw
  • Single 1Rx8 rank simplifies installation in tight slots
  • Tested compatible with ThinkCentre M80q M90a M90q Gen 3

Especificaciones

BrandOWC
Part Number4S8D51R816GB
Capacity16GB
Type262-Pin DDR5 Non-ECC SODIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.1V
ECCNo
Buffered/RegisteredUnbuffered
Rank1Rx8
Heat SpreaderNo
Compatible SystemLenovo ThinkCentre M80q Gen 3
Lenovo ThinkCentre M90a Pro Gen 3
Lenovo ThinkCentre M90q Gen 3

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Preguntas sobre este artículo

How do I install the 262-pin DDR5 SODIMM in a ThinkCentre M80q Gen 3, and what step is often missed?

Power off, unplug, open the case, align the notch on the 262-pin module with the slot key, press firmly until the side clips click, then replace the cover before powering on — the missed step is forgetting to seat both clips fully.

Will the 16GB 1Rx8 module need any firmware update or periodic replacement?

No firmware update is required; the JEDEC-standard 1.1V DDR5 module is designed for the system's lifetime, and the limited lifetime warranty covers defects without scheduled replacement.

What is the first limit reached under sustained heavy workloads with this CL40 4800MHz memory?

The CAS latency of CL40 at 4800MHz sets the timing boundary; sustained loads will hit that latency ceiling before bandwidth or voltage limits become a factor.

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