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Green circuit board with black memory chips and gold edge connectors

OWC

OWC 16GB DDR4 2666MHz CL19 1.2V 288-Pin UDIMM for HP Pavilion 590 595

SKU CH-0ZP2-JS2JM

A 16 GB DDR4 2666 MHz CL19 1.2 V UDIMM validated for HP Pavilion 590 and 595 desktops

  • Capacity16GB
  • Type288-Pin DDR4 Non-ECC UDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCNo
  • 16GB DDR4 2666MHz boosts multitasking speed
  • CL19 latency at 1.2V keeps power draw low
  • 288-pin UDIMM fits HP Pavilion 590 and 595
  • JEDEC compliant for warranty-safe upgrade
  • Backward compatible with 2133MHz and 2400MHz systems

HP Pavilion 590 and 595 Memory Upgrade

This OWC 16GB DDR4 2666MHz CL19 module is built for HP Pavilion 590-p0558ng and 595-p0040ns desktops. It fits the standard 288-pin UDIMM slots found in those systems. The kit adds capacity with a single stick rated at 1.2V. Installation is a straightforward DIY task.

Suitable for owners of the listed HP models

It works in desktops, workstations and NAS units that accept DDR4 2666 non-ECC unbuffered memory. It also runs at 2133MHz and 2400MHz if the platform requires a lower speed. Builders who need ECC registered modules or a different form factor must choose another product.

16GB DDR4 2666MHz CL19 single module

The capacity, speed and latency combination determines whether this matches the board's supported configuration. Verify the maximum per-slot limit and total system capacity before purchase. The module is JEDEC and RoHS compliant.

Ciri-ciri utama

  • 16GB DDR4 2666MHz boosts multitasking speed
  • CL19 latency at 1.2V keeps power draw low
  • 288-pin UDIMM fits HP Pavilion 590 and 595
  • JEDEC compliant for warranty-safe upgrade
  • Backward compatible with 2133MHz and 2400MHz systems

Spesifikasi

BrandOWC
Part Number2U6D42R816GB
Capacity16GB
Type288-Pin DDR4 Non-ECC UDIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
Heat SpreaderNo
Compatible SystemHP Pavilion 590-p0558ng
HP Pavilion 595-p0040ns

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Does the DDR4 2666MHz speed cap at 2666MHz or can it run faster on HP Pavilion 590 and 595 systems?

The module is rated for 2666MHz (PC4-21300). It will run at the highest speed the motherboard supports, which for these Pavilion models is 2666MHz.

What physical slot and form factor does this 288-pin UDIMM need to fit the HP Pavilion 590-p0558ng and 595-p0040ns?

It requires a standard 288-pin DDR4 UDIMM slot. The module is unbuffered, non-ECC, 2Rx8 rank, and has no heat spreader, matching the OEM layout for these desktops.

How is this memory installed, and what step do DIY builders often miss?

Power off, unplug, open the case, align the notch with the slot key, press firmly until both side clips click shut. The step often missed is pressing hard enough to engage both retention clips fully.

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