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Green 200-pin DDR2 SODIMM module with black memory chips

Computer Memory Solutions

Computer Memory Solutions CM256645300SO 64MB DDR2 667MHz SODIMM memory upgrade

SKU CH-GQXW-1NPQV

A 64 MB DDR2 667 MHz SODIMM module for HP Business Notebook 2210B, 2510P, 2710P, 511, 540, 550 and 6510B models

  • Total capacity64 MB
  • Rated speedDDR2 667 (PC2 5300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL5
  • Memory timings5-5-5
  • Rated voltage1.8 V
  • 64 MB capacity adds responsive multitasking headroom
  • 667 MHz DDR2 speed matches original system timing
  • 200-pin SO-DIMM form factor fits notebook slots directly
  • Unbuffered non-ECC design installs without BIOS changes
  • Validated for HP 2210B, 2510P, 2710P, 511, 540, 550, 6510B

64MB DDR2 SODIMM for HP notebooks

This 64MB DDR2 667MHz module uses a 200-pin SO-DIMM form factor and runs at 1.8V with CL5 5-5-5 timing. It is built as a 2Rx8 unbuffered non-ECC stick and carries the Computer Memory Solutions CM256645300SO part number. The kit contains one memory stick intended as a direct upgrade for specific legacy systems.

Compatibility limited to listed HP models

The part is validated for HP and Compaq business notebooks including the 2210B, 2510P, 2710P, 511, 540, 550 and 6510B series as well as NC4400, NC6320, NC6400 and NC8430 models. It will not fit devices that use a different pin count, voltage or DDR generation, so owners of newer laptops or desktop boards must select another product.

64MB capacity and DDR2-5300 speed

The decisive specification is the 64MB capacity paired with the DDR2-5300 667MHz rating; systems requiring larger modules or faster DDR2 speeds such as PC2-6400 will not operate correctly with this stick. Verify the exact model number and memory slot configuration before purchase.

How it compares

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

Price $8.99
Cheaper than about 98% of the 21,161 comparable items (median $397.99).
Total capacity 64 MB
Lower than about 99% of the 20,941 comparable items (median 32 GB).
Price per GB $140.47 per GB
Pricier than about 90% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM256645300SO
Total capacity64 MB
Product type200-Pin DDR2 SO-DIMM
Performance
Rated speedDDR2 667 (PC2 5300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL5
Memory timings5-5-5
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.8 V
Compatibility
Compatible systemsHp Business Notebook 2210B, 2510P, 2710P, 511, 540, 550, 6510B
In the box
Included items1 Memory RAM Stick

Questions about this item

How does the 667 MHz speed affect performance in a compatible notebook?

The module runs at 667 MHz with CL5 timing, delivering the standard DDR2-5300 bandwidth for the listed HP Business Notebook models.

What does the PC2-5300 designation mean for real-world throughput?

PC2-5300 indicates a peak transfer rate of 5300 MB/s on the 200-pin DDR2 SO-DIMM interface used by these notebooks.

Will the 200-pin SODIMM fit the memory slot in an HP 2510p?

Yes, the 200-pin DDR2 SO-DIMM form factor matches the memory slots in the HP 2510p and the other listed compatible models.

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