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Two green DDR2 DIMM sticks, no heat spreaders

Computer Memory Solutions

Computer Memory Solutions 2GB (2x1GB) DDR2 533MHz PC2-4200 CL4 240-Pin DIMM Dell Dimension E520

SKU CH-ESMJ-CZBT5

A 2 GB dual-channel DDR2 kit rated at 533 MHz CL4 for Dell Dimension E520 desktops

  • Total capacity2 GB (2 × 1 GB)
  • Rated speedDDR2 533 (PC2 4200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL4
  • Memory timings4-4-4
  • Rated voltage1.8 V
  • Guaranteed compatibility with Dell Dimension E520 desktops
  • 2GB dual-channel kit using two 1GB DDR2 modules
  • CL4 latency at 533 MHz for responsive DDR2 performance
  • Unbuffered non-ECC design matches original system requirements
  • 240-pin DIMM form factor installs directly into four available sockets

System-Specific DDR2 Kit

This 2GB kit contains two 1GB unbuffered DIMMs built for Dell Dimension E520 desktops. It uses 240-pin DDR2 SDRAM running at 533 MHz with CL4 timing and 1.8V operation. The non-ECC modules are designed as a direct upgrade for that platform.

PC2-4200 Speed Rating

The memory operates at the PC2-4200 standard with 4-4-4 timing and a 2Rx8 rank organisation. Major-brand chips are used on each 240-pin stick and no heat spreader is fitted. The rated speed decides whether the kit matches the motherboard's supported frequency.

Four-Slot Upgrade Path

The E520 provides four DIMM sockets and supports up to 8GB total, so this pair leaves two slots free for future expansion. Installation requires no BIOS changes beyond the standard DDR2 voltage setting. Buyers needing ECC or registered modules cannot use this kit.

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 2 GB (2 × 1 GB)
Lower than about 95% of the 20,941 comparable items (median 32 GB).
Price per GB $7.50 per GB
Cheaper than about 54% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM128644200DIMMDR
Total capacity2 GB (2 × 1 GB)
Product type240-Pin DDR2 SDRAM
Performance
Rated speedDDR2 533 (PC2 4200)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL4
Memory timings4-4-4
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.8 V
Compatibility
Compatible systemsDell Dimension E520 Series Desktop
In the box
Included items2 Memory RAM Sticks

Questions about this item

What does the 533 MHz DDR2 rating mean once the modules are installed in a Dell Dimension E520?

The 533 MHz rating sets the maximum data rate the memory controller will use; the system runs the kit at its native 533 MHz speed with CL4 timings.

Which interface standard do these 240-pin DIMMs follow and what does it limit in practice?

They follow the DDR2 PC2-4200 standard, which caps the peak transfer rate at the rated 533 MHz speed and 1.8 V operation.

What physical slot and spacing do the 240-pin DIMMs need to fit the E520?

They require standard 240-pin DDR2 DIMM slots; the E520 provides four such sockets for direct installation.

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