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Two green circuit boards with gold edge connectors and black memory chips

Computer Memory Solutions

Computer Memory Solutions CM512648500SODRH 8GB (2x4GB) DDR3 1066MHz SODIMM

SKU CH-SMXV-4H8H5

8GB DDR3 SODIMM kit (2×4GB, 1066 MHz, CL7) validated for Lenovo ThinkPad X201I 3249‑xxx laptops

  • Capacity8GB (2 x 4GB)
  • Type204-Pin DDR3 SO-DIMM
  • SpeedDDR3 1066 (PC3 8500)
  • CAS LatencyCL7
  • Timing7-7-7
  • Voltage1.5V
  • 8GB dual-channel kit enables full 8GB system capacity
  • 1066 MHz DDR3 speed matches PC3-8500 specification for ThinkPad X201i
  • CL7 7-7-7 timing delivers responsive memory performance
  • 5 V unbuffered non-ECC modules install directly in 204-pin SODIMM slots
  • Guaranteed compatibility with Lenovo ThinkPad X201i 3249-xxx series

System-specific upgrade

This 8 GB kit contains two 4 GB DDR3 SODIMM modules rated at 1066 MHz with CL7 timing. The sticks are unbuffered, non-ECC and operate at 1.5 V using a 204-pin layout. Computer Memory Solutions validates the kit for the Lenovo ThinkPad X201I 3249-xxx series.

Suited for X201I owners

The matched pair restores the factory two-slot configuration up to the platform maximum of 8 GB. Buyers whose notebooks require a different pin count, voltage or DDR generation cannot use this kit. Laptops limited to a single module or a lower total capacity should look elsewhere.

Speed and pin count decide fit

The modules run at PC3-8500 (1066 MHz) on a 204-pin SO-DIMM interface. If the target system demands a different speed grade or pin arrangement the memory will not seat or boot. Verify the service manual lists DDR3 1066 MHz 204-pin SODIMM before ordering.

Highlights

  • 8GB dual-channel kit enables full 8GB system capacity
  • 1066 MHz DDR3 speed matches PC3-8500 specification for ThinkPad X201i
  • CL7 7-7-7 timing delivers responsive memory performance
  • 5 V unbuffered non-ECC modules install directly in 204-pin SODIMM slots
  • Guaranteed compatibility with Lenovo ThinkPad X201i 3249-xxx series

Specifications

BrandComputer Memory Solutions
ModelCM512648500SODRH
Capacity8GB (2 x 4GB)
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 SystemLenovo Thinkpad X201I 3249-Xxx Series
Package Content2 Memory RAM Sticks

Questions about this item

What comes in the box and is anything else needed?

The package contains two 4 GB DDR3 SO-DIMM modules for a total of 8 GB; no extra parts are required for installation in the ThinkPad X201i.

Which capacity or kit version should I choose?

This is the only kit offered — a matched pair of 4 GB sticks giving 8 GB total, which matches the system's two-slot 8 GB maximum with a 64-bit OS.

What does the 1066 MHz rating mean once installed?

The modules run at 1066 MHz with CL7 timing at 1.5 V; the X201i memory controller will operate them at this speed.

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