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Green circuit board SODIMM memory module with black chips 204-pin DDR3 1333MHz 4GB CL7

Computer Memory Solutions

Computer Memory Solutions 4GB DDR3-1333 CL7 SODIMM for ThinkPad X220

SKU CH-4XWD-F05G7

A 4 GB DDR3 SODIMM running at 1333 MHz with CL7 timing, built for ThinkPad X220 models 4287, 4290 and 4291

  • Capacity4GB
  • Type204-Pin DDR3 SO-DIMM
  • SpeedDDR3 1333 (PC3 10600)
  • CAS LatencyCL7
  • Timing7-7-7
  • Voltage1.5V
  • 4GB capacity adds responsive multitasking headroom for ThinkPad X220
  • DDR3-1333 CL7 timing delivers low-latency data access at 1333 MHz
  • 204-pin SODIMM form factor fits X220 4287, 4290, 4291 slots directly
  • 5 V unbuffered operation matches factory voltage for stable compatibility
  • Major-brand chipset ensures reliable long-term operation under daily workloads

Targeted upgrade for ThinkPad X220

This 4 GB DDR3-1333 SODIMM is built specifically for Lenovo ThinkPad X220 models 4287, 4290 and 4291. It provides a single-module capacity increase for owners who need more memory in those systems without mixing speeds or form factors.

Low-voltage unbuffered operation

Running at 1.5 V with CL7 7-7-7 timings, the module draws minimal power and generates little heat inside the compact chassis. No heat spreader is fitted, so airflow from the laptop’s existing fan is sufficient for normal workloads.

204-pin SO-DIMM with major-brand chips

The stick uses 2Rx8 organisation on a standard 204-pin edge connector that slots directly into the X220’s memory socket. Unbuffered, non-ECC design matches the platform’s requirements and the major-brand chipset ensures reliable compatibility day to day.

商品特色

  • 4GB capacity adds responsive multitasking headroom for ThinkPad X220
  • DDR3-1333 CL7 timing delivers low-latency data access at 1333 MHz
  • 204-pin SODIMM form factor fits X220 4287, 4290, 4291 slots directly
  • 5 V unbuffered operation matches factory voltage for stable compatibility
  • Major-brand chipset ensures reliable long-term operation under daily workloads

商品規格

BrandComputer Memory Solutions
ModelCM5126410600SODRH
Capacity4GB
Type204-Pin DDR3 SO-DIMM
SpeedDDR3 1333 (PC3 10600)
CAS LatencyCL7
Timing7-7-7
Voltage1.5V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemLenovo Thinkpad X220 4287, 4290, 4291
Package Content1 Memory RAM Stick

商品問答

How do I install this 204-pin DDR3 SODIMM in my ThinkPad X220 and which step do people often miss?

Power off, remove the battery, open the bottom memory door, insert the module at 30 degrees until the gold contacts are hidden, then press down until both side clips click — the step most skip is re-seating the battery before first boot.

What maintenance or replacement will this 4GB CL7 module need over time?

No routine maintenance is required; if errors appear later, run a memory diagnostic and replace the stick if it fails, as the chips are not serviceable.

What limit appears first when this 1.5 V DDR3-1333 kit runs sustained workloads?

The 1333 MT/s data rate and CL7 latency set the throughput ceiling long before thermal throttling becomes an issue on this unbuffered SODIMM.

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