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Green circuit board with black memory chips and gold edge connector

Computer Memory Solutions

Computer Memory Solutions CM512648500SODRH 4GB DDR3 1066MHz SODIMM HP Pavilion Dv4-1540Us Dv4-1530Br

SKU CH-M7CM-3Q23A

A 4 GB DDR3 SODIMM module running at 1066 MHz with CL7 timing for HP Pavilion dv4-1540us and dv4-1530br notebooks

  • Capacity4GB
  • Type204-Pin DDR3 SO-DIMM
  • SpeedDDR3 1066 (PC3 8500)
  • CAS LatencyCL7
  • Timing7-7-7
  • Voltage1.5V
  • 4GB DDR3 SODIMM boosts multitasking on HP Pavilion dv4
  • 1066 MHz CL7 timing delivers responsive system performance
  • 204-pin unbuffered design fits notebook memory slots directly
  • 5 V operation matches factory voltage for stable upgrades
  • System-specific validation ensures compatibility with dv4-1540us and dv4-1530br

4GB DDR3 1066MHz SODIMM for HP Pavilion dv4

This 4GB DDR3 1066MHz SODIMM module is built for HP Pavilion dv4-1540us and dv4-1530br notebooks. It uses a 204-pin SO-DIMM form factor and runs at 1.5V with CL7 7-7-7 timings. The stick is unbuffered, non-ECC and organised as 2Rx8 with major-brand chips. It is sold as a single 4GB unit.

Replaces slower DDR3 or fills an empty slot

The module upgrades the notebook from lower-speed DDR3 or adds capacity when a second socket is free. The jump is worth it when the system currently runs less than the 8GB maximum supported by the platform and you need more headroom for multitasking. It matches the PC3-8500 specification required by these models.

Check your exact model

Confirm the notebook is a dv4-1540us or dv4-1530br; other dv4 variants may have different memory requirements. Verify how many of the two SODIMM sockets are occupied so you know whether this 4GB stick will bring the total to 4GB or 8GB. The module has no heat spreader and uses standard 1.5V DDR3 voltage.

Highlights

  • 4GB DDR3 SODIMM boosts multitasking on HP Pavilion dv4
  • 1066 MHz CL7 timing delivers responsive system performance
  • 204-pin unbuffered design fits notebook memory slots directly
  • 5 V operation matches factory voltage for stable upgrades
  • System-specific validation ensures compatibility with dv4-1540us and dv4-1530br

Specifications

BrandComputer Memory Solutions
ModelCM512648500SODRH
Capacity4GB
Type204-Pin DDR3 SO-DIMM
SpeedDDR3 1066 (PC3 8500)
CAS LatencyCL7
Timing7-7-7
Voltage1.5V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemHp Pavilion Notebook Dv4-1540Us, Dv4-1530Br
Package Content1 Memory RAM Stick

Questions about this item

Will the 204-pin SODIMM fit the HP Pavilion Dv4-1540Us memory slot?

Yes, the module uses the standard 204-pin DDR3 SODIMM form factor that matches the two SO-DIMM sockets in the Dv4-1540Us and Dv4-1530Br notebooks.

What is the correct way to seat the module so the laptop recognises the full 4GB?

Insert the stick at roughly a 30-degree angle until the gold contacts disappear, then press down firmly until both side clips click into the notches on the PCB.

When should this DDR3 1066MHz stick be replaced if the system becomes unstable?

Replace it if memory diagnostics report errors, if the notebook fails to POST with the module installed, or if you upgrade the platform to a newer DDR generation.

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