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Two green circuit boards with black memory chips and gold edge connectors

Computer Memory Solutions

Computer Memory Solutions CM1024642400SO 16GB (2x8GB) DDR4 2400 memory upgrade for HP Zbook 15 G3 G4 17 G3 G4

SKU CH-89JD-8BMB6

16 GB dual-channel DDR4 2400 kit with CL17 timing and 1.2 V operation for HP ZBook 15/17 G3 and G4 mobile workstations

  • Capacity16GB (2 x 8GB)
  • Type260-Pin DDR4 SO-DIMM
  • SpeedDDR4 2400 (PC4 19200)
  • CAS LatencyCL17
  • Timing17-17-17
  • Voltage1.2V
  • Guaranteed compatibility with listed HP Zbook mobile workstations
  • 16 GB total capacity in a matched two-stick kit
  • DDR4 2400 speed rated at PC4 19200 for responsive performance
  • Low 1.2 V operation reduces power draw and heat
  • CL17 latency timing supports smooth multitasking workflows

Zbook 15/17 G3-G4 memory kit

This 16 GB kit supplies two 8 GB DDR4 SO-DIMMs built for HP Zbook 15 G3, 15 G4, 17 G3 and 17 G4 mobile workstations. Each module runs at 2400 MHz with CL17 timing at 1.2 V. The unbuffered, non-ECC design matches the factory memory specification for these models.

Sustained load behaviour

Dual-rank 2Rx8 organisation and major-brand chipsets keep throughput steady during long rendering or simulation sessions. Rated CL17 17-17-17 latency avoids the timing regressions that appear when slower modules are mixed. The 1.2 V operating voltage limits thermal rise inside the chassis.

Upgrade context

Replaces the standard 8 GB or 12 GB configurations shipped in many Zbook units and fills two of the four available slots. The jump is worthwhile when workloads exceed 12 GB — virtual machines, large assemblies or 4K timelines — but offers no benefit for lighter office tasks that stay within the original capacity.

Highlights

  • Guaranteed compatibility with listed HP Zbook mobile workstations
  • 16 GB total capacity in a matched two-stick kit
  • DDR4 2400 speed rated at PC4 19200 for responsive performance
  • Low 1.2 V operation reduces power draw and heat
  • CL17 latency timing supports smooth multitasking workflows

Specifications

BrandComputer Memory Solutions
ModelCM1024642400SO
Capacity16GB (2 x 8GB)
Type260-Pin DDR4 SO-DIMM
SpeedDDR4 2400 (PC4 19200)
CAS LatencyCL17
Timing17-17-17
Voltage1.2V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemHP/Compaq Zbook Mobile Workstation 15 G3, 15 G4, 17 G3, 17 G4
Package Content2 Memory RAM Sticks

Questions about this item

How much power does the 1.2V DDR4 2400 kit draw when the workstation runs all day?

The modules operate at the standard DDR4 voltage of 1.2V, keeping power draw low during continuous workloads on the Zbook 15 G3, G4 or 17 G3, G4.

What must the laptop already have for this 260-pin SO-DIMM kit to install and run?

The Zbook mobile workstation needs two free DDR4 SO-DIMM slots and a memory controller that supports 2400 MHz non-ECC unbuffered memory.

Will the CL17 2Rx8 sticks work alongside the original memory that came in my Zbook 15 G3?

Yes, the kit is validated for the Zbook 15 G3, G4 and 17 G3, G4 platforms, so it will run with the factory-installed DDR4 modules at the system's default speed.

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