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Computer Memory Solutions

Computer Memory Solutions CM5126412800SOSRL 4GB DDR3L 1600MHz SODIMM for Lenovo B Series B40-30 memory upgrade

SKU CH-2JEJ-CA2DZ

4GB DDR3L 1600MHz SODIMM module for Lenovo B40-30 notebook memory upgrade

  • Capacity4GB
  • Type204-Pin DDR3 SO-DIMM
  • SpeedDDR3L 1600 (PC3L 12800)
  • CAS LatencyCL11
  • Timing11-11-11
  • Voltage1.35V
  • 4 GB capacity adds responsive multitasking headroom
  • DDR3L 1600 MHz speed keeps data flowing smoothly
  • CL11 timing reduces access latency for snappier loads
  • 35 V low-voltage operation cuts power draw and heat
  • 204-pin SODIMM fits Lenovo B40-30 slot directly

System-specific DDR3L SODIMM for Lenovo B40-30

This 4 GB module is built for the Lenovo B Series Notebook B40-30 and installs in a 204-pin SO-DIMM slot. It targets owners who need a single-stick upgrade to reach the platform maximum of 16 GB across two sockets. The part carries a limited lifetime warranty from Computer Memory Solutions.

DDR3L 1600 MHz practical limits

The stick runs at 1600 MHz with CL11 timings at 1.35 V and uses unbuffered, non-ECC chips. It will operate at the highest speed the notebook’s memory controller allows, which may be lower than the rated frequency. Mixing with existing modules of different voltage or timing can force the system to run at the slowest common settings.

Upgrade path and when it matters

Replacing a 2 GB or 4 GB stick with this 4 GB unit adds capacity for multitasking and browser-heavy workloads. The jump is worthwhile when the current configuration leaves less than 4 GB free during typical use. Buyers who want more storage or need ECC error correction should look elsewhere, as this module provides neither.

Highlights

  • 4 GB capacity adds responsive multitasking headroom
  • DDR3L 1600 MHz speed keeps data flowing smoothly
  • CL11 timing reduces access latency for snappier loads
  • 35 V low-voltage operation cuts power draw and heat
  • 204-pin SODIMM fits Lenovo B40-30 slot directly

Specifications

BrandComputer Memory Solutions
ModelCM5126412800SOSRL
Capacity4GB
Type204-Pin DDR3 SO-DIMM
SpeedDDR3L 1600 (PC3L 12800)
CAS LatencyCL11
Timing11-11-11
Voltage1.35V
ECCNo
Buffered/RegisteredUnbuffered
Rank1Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemLenovo B Series Notebook B40-30
Package Content1 Memory RAM Stick

Questions about this item

Should I pick the single 4 GB stick or look for a larger kit for my B40-30?

The B40-30 has two SODIMM sockets and supports up to 16 GB, so one 4 GB module leaves the second slot free for another identical stick later.

What does the 1600 MHz rating actually deliver inside the notebook?

The module runs at 1600 MHz with CL11 11-11-11 timing at 1.35 V, giving a peak bandwidth of PC3L 12800 for everyday workloads.

Is the 204-pin DDR3L SODIMM interface the limiting factor for speed?

Yes, the 204-pin DDR3L SODIMM slot caps the memory at 1600 MHz, so faster DDR3 modules would simply downclock to this speed.

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