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Green circuit board with gold edge contacts and black memory chips

OWC

OWC 4GB DDR3L 1600 CL11 1Rx8 204-pin 1.35V SODIMM for HP 15 Series

SKU CH-TWSC-V18T6

A 4 GB DDR3L SODIMM module running at 1600 MHz with CL11 latency and 1.35 V operation for HP 15 series notebooks

  • Capacity4GB
  • Type204-Pin DDR3L Non-ECC SODIMM
  • SpeedDDR3L 1600 (PC3L 12800)
  • CAS LatencyCL11
  • Voltage1.35V
  • ECCNo
  • 4GB upgrade for HP 15 Series DDR3 systems
  • 1600 MHz DDR3L speed with CL11 latency
  • Low 1.35 V DDR3L voltage reduces power draw
  • JEDEC-standard and RoHS compliant for warranty-safe use
  • Single 1Rx8 204-pin SODIMM installs easily

HP 15 Series DDR3L Upgrade

This 4GB SODIMM is built for HP 15 Series laptops that use DDR3 memory. It suits owners who want a straightforward capacity increase without replacing the entire system. The module matches the factory voltage and timing so the notebook recognises it immediately. Buyers needing ECC or registered memory should look elsewhere.

JEDEC and RoHS compliant module

The stick meets JEDEC PC3L-12800 CL11 specifications and is RoHS compliant, which keeps the upgrade warranty-safe for the laptop. No extra software, drivers or heat spreaders are bundled in the package. The single rank 1Rx8 organisation follows the original equipment layout. Systems that require buffered or ECC modules will not accept this part.

Tool-free slot installation

Installation means opening the memory door, aligning the 204-pin key, and pressing until the clips latch. Most users complete the swap in a few minutes with no tools beyond a small screwdriver. The only common issue is seating the module fully so both retention clips engage. OWC provides an online video that demonstrates the procedure step by step.

Highlights

  • 4GB upgrade for HP 15 Series DDR3 systems
  • 1600 MHz DDR3L speed with CL11 latency
  • Low 1.35 V DDR3L voltage reduces power draw
  • JEDEC-standard and RoHS compliant for warranty-safe use
  • Single 1Rx8 204-pin SODIMM installs easily

Specifications

BrandOWC
Part Number1S6T31R804GB
Capacity4GB
Type204-Pin DDR3L Non-ECC SODIMM
SpeedDDR3L 1600 (PC3L 12800)
CAS LatencyCL11
Voltage1.35V
ECCNo
Buffered/RegisteredUnbuffered
Rank1Rx8
Heat SpreaderNo
Compatible SystemHP 15 Series using DDR3 Memory

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Questions about this item

Will the 1Rx8 rank layout need any firmware or BIOS changes if I add a second 4 GB stick later?

The module is an unbuffered 1Rx8 DDR3L SODIMM; no firmware update is required, but matching capacity, speed and manufacturer is recommended for best stability.

At DDR3L 1600 CL11, which limit appears first during long workloads — bandwidth or latency?

The rated PC3L-12800 bandwidth and CL11 latency are fixed by the JEDEC profile; sustained use will hit the bandwidth ceiling before latency becomes a bottleneck.

How much heat and power does a 1.35 V 4 GB DDR3L module generate when the laptop runs all day?

Operating at 1.35 V without a heat spreader, the module draws minimal power and stays cool enough for continuous operation in the HP 15 chassis.

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