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Green circuit board with black memory chips and gold edge connector

Computer Memory Solutions

Computer Memory Solutions 1GB DDR1 SODIMM 333MHz 2Rx8 200-Pin

SKU CH-G51Y-MDZA4

Adds 1GB of DDR1 laptop memory at 333MHz with CL2.5 timing on a 200-pin SODIMM

  • Total capacity1 GB
  • Rated speedDDR 333 (PC 2700)
  • ChipsetMajor Brand Chipset
  • CAS latency2.5
  • Memory timings2.5-3-3
  • Rated voltage2.5 V
  • 1GB DDR1 SODIMM upgrades legacy notebooks
  • 333 MHz DDR 2700 speed matches PC2700 systems
  • 5 V unbuffered design fits standard slots
  • 200-pin form factor installs in compatible laptops
  • CL 2.5 timing supports stable operation

Computer Memory Solutions 1GB DDR1 SODIMM

This module provides 1GB of DDR1 memory at 333MHz with CL2.5 timing and 2.5V operation. It uses a 200-pin SODIMM form factor and is sold as a single unbuffered, non-ECC stick. The 2Rx8 rank configuration and major-brand chipset are designed for compatible legacy laptops or compact systems.

Upgraders with DDR1 333MHz SODIMM slots

This part suits owners of older notebooks or small-form-factor PCs that accept DDR1 333MHz SODIMM memory. Builders who need a higher density per slot, a different pin count, ECC support, or registered buffering should look at other memory types that match their platform requirements.

200-pin DDR1 SODIMM interface

The 200-pin SODIMM connector and DDR1 333MHz signalling are the single specification that decides compatibility. If the target system requires a different pin layout, voltage, or memory generation, this module will not fit or function.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $14.99
Cheaper than about 94% of the 21,161 comparable items (median $397.99).
Total capacity 1 GB
Lower than about 98% of the 20,941 comparable items (median 32 GB).
CAS latency 2.5
Lower than about 99% of the 483 comparable items (median 22).
Price per GB $14.99 per GB
Pricier than about 61% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Part numberCM128642700SO
Total capacity1 GB
Performance
Rated speedDDR 333 (PC 2700)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latency2.5
Memory timings2.5-3-3
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Power
Rated voltage2.5 V

Questions about this item

Does the DDR1 333MHz SODIMM run at PC2700 speeds in a laptop?

Yes, the module is rated DDR 333 (PC 2700) and will operate at that transfer rate when the system supports it.

Will this 200-pin SODIMM fit my older notebook slot?

The stick uses the standard 200-pin SODIMM form factor, so it fits any laptop socket designed for DDR1 SODIMM modules.

How do I install the CM128642700SO and what step is often missed?

Power off the laptop, remove the battery if accessible, insert the module at an angle until the gold contacts disappear, then press down until the side clips click — skipping the full click leaves the stick loose.

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