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Green circuit board with black memory chips, gold edge connector, no heat spreader

Computer Memory Solutions

Computer Memory Solutions CM1024642666DIMM 8GB DDR4 2666MHz Lenovo Legion Y520 Tower memory upgrade

SKU CH-RVK4-DJQE0

8GB DDR4 2666MHz CL19 DIMM upgrades Lenovo Legion Y520 Tower to 32GB max

  • Total capacity8 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL19
  • Memory timings19-19-19
  • Rated voltage1.2 V
  • 8GB DDR4 2666MHz boosts Lenovo Legion Y520 Tower performance
  • CL19 1.2V unbuffered timing keeps system stable under load
  • 288-pin DIMM fits the two available memory slots
  • Non-ECC 2Rx8 design matches factory specifications exactly
  • Computer Memory Solutions tests every module for guaranteed compatibility

System-specific DDR4 upgrade

This 8 GB DIMM is built for the Lenovo Legion Y520 Tower. It arrives as a single unbuffered, non-ECC module using major-brand chips. The 288-pin form factor matches the desktop memory slots in that system.

DDR4-2666 bandwidth ceiling

The PC4-21300 rating caps throughput at 2666 MT/s, so any faster modules will down-clock to this speed. CL19 timing at 1.2 V sets the latency floor for the platform. Dual-rank 2Rx8 organisation fills one of the two available slots.

Plain green PCB, no spreader

Without a heat spreader the module sits low enough for standard CPU coolers. The 288-pin edge connector keys only into DDR4 slots, preventing mis-installation. Maximum supported capacity is 32 GB across both sockets.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $39.99
Cheaper than about 80% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $5.00 per GB
Cheaper than about 77% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM1024642666DIMM
Total capacity8 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL19
Memory timings19-19-19
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsLenovo« Legion Y520 Tower
In the box
Included items1Memory Ram Stick

Questions about this item

How do I choose between the available versions or capacities for this Lenovo Legion Y520 Tower upgrade?

This module is an 8GB DDR4 2666MHz DIMM. The system supports up to 32GB across two slots, so one stick adds 8GB and a second identical stick later would reach the maximum.

What does the 2666MHz speed mean once the stick is installed in my machine?

The module runs at DDR4 2666 (PC4 21300) with CL19 timings at 1.2V. It will operate at that speed if the platform supports it, otherwise it downclocks to the highest speed the board allows.

What interface and standard does this memory use, and what does that cap in practice?

It uses a 288-pin DDR4 DIMM interface. The DDR4 standard caps voltage at 1.2V and the module is unbuffered, non-ECC, so it fits standard desktop DIMM slots without registration overhead.

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