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Two green DDR2 DIMM modules with black chips, no heat spreader

Computer Memory Solutions

Computer Memory Solutions CM128644200DIMMDR 2GB (2 x 1GB) DDR2 533 memory upgrade

SKU CH-ET5D-F6Q5X

DDR2 533 memory kit adds 2 GB across two 1 GB unbuffered DIMMs for Dell Dimension C521 desktops

  • Capacity2GB (2 x 1GB)
  • Type240-Pin DDR2 SDRAM
  • SpeedDDR2 533 (PC2 4200)
  • CAS LatencyCL4
  • Timing4-4-4
  • Voltage1.8V
  • Guaranteed compatibility with Dell Dimension C521 desktop
  • 2GB total capacity supplied as two 1GB modules
  • DDR2 533 MHz speed rated at PC2-4200
  • CL4 latency timing at 4-4-4 for stable operation
  • 240-pin unbuffered non-ECC DIMM format

Dell Dimension C521 DDR2 Upgrade

This kit supplies two 1 GB DDR2-533 DIMMs for a total of 2 GB. It is built for owners of the Dell Dimension C521 desktop who want to add memory without changing the existing platform. The modules are unbuffered, non-ECC and run at 1.8 V.

DDR2-533 bandwidth ceiling

The PC2-4200 standard tops out at 533 MHz with a 4-4-4 timing cycle. That transfer rate is the hard limit of the DDR2 interface used by this system, so the kit cannot run faster than the board allows. Adding these sticks will not exceed the chipset’s native memory throughput.

Check free slots and 4 GB cap

The Dimension C521 has four DIMM sockets and a maximum supported memory of 4 GB. Verify how many slots are already occupied before ordering, because filling all four with 1 GB modules reaches that ceiling. The kit is a matched pair, so both sticks should be installed together for dual-channel operation.

商品特色

  • Guaranteed compatibility with Dell Dimension C521 desktop
  • 2GB total capacity supplied as two 1GB modules
  • DDR2 533 MHz speed rated at PC2-4200
  • CL4 latency timing at 4-4-4 for stable operation
  • 240-pin unbuffered non-ECC DIMM format

商品規格

BrandComputer Memory Solutions
ModelCM128644200DIMMDR
Capacity2GB (2 x 1GB)
Type240-Pin DDR2 SDRAM
SpeedDDR2 533 (PC2 4200)
CAS LatencyCL4
Timing4-4-4
Voltage1.8V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemDell Dimension C521 Desktop
Package Content2 Memory RAM Sticks

商品問答

Should I choose the 2GB kit or a different capacity for my Dell Dimension C521?

The 2GB kit (2 x 1GB) fits the C521's four slots and leaves room to reach the 4GB maximum later.

What does the DDR2 533 speed mean once installed in the Dell Dimension C521?

The modules run at 533 MHz with CL4 timing, delivering PC2-4200 bandwidth for the system's memory controller.

Will the 240-pin DDR2 interface work without changes in the Dell Dimension C521?

Yes, the 240-pin DDR2 DIMMs match the C521's slots and operate at the standard 1.8V unbuffered specification.

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