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Two green 240-pin DDR2 DIMM sticks with black chips

Computer Memory Solutions

Computer Memory Solutions 4GB (2x2GB) DDR2 800MHz PC2-6400 CL6 DIMM memory upgrade for Dell Optiplex 745 745C

SKU CH-MWPH-XTX4R

A 4 GB DDR2 kit of two 2 GB DIMMs rated at 800 MHz CL6 for Dell Optiplex 745 and 745C desktops

  • Capacity4GB (2 x 2GB)
  • Type240-Pin DDR2 SDRAM
  • SpeedDDR2 800 (PC2 6400)
  • CAS LatencyCL6
  • Timing6-6-6
  • Voltage1.8V
  • 4GB kit upgrades Dell Optiplex 745 and 745C desktops
  • 800 MHz DDR2 speed matches PC2-6400 system bus
  • CL6 latency with 6-6-6 timing for stable operation
  • 8 V unbuffered non-ECC modules install without configuration
  • Two 240-pin DIMMs using major-brand chips in 2Rx8 layout

System-Specific Upgrade Kit

This 4 GB kit contains two 2 GB DDR2 DIMMs built for Dell Optiplex 745 and 745C desktops. It uses 240-pin unbuffered modules running at 800 MHz with CL6 timing. The product is new and backed by the manufacturer's compatibility guarantee.

DDR2 Platform Limits

DDR2 memory tops out at 800 MHz and 1.8 V, so this kit runs at the standard's maximum speed. The Optiplex 745 and 745C accept either two or four sockets with a ceiling of 4 GB or 8 GB depending on the exact chassis. Buyers needing more capacity than the board allows should choose a different platform.

Matched Pair for Dual Channel

The two 2 GB sticks are sold as a matched set to enable dual-channel operation on the supported Dell systems. This configuration delivers the full 4 GB upgrade in a single purchase. Builders who need a single module or a different capacity must select another kit.

Points forts

  • 4GB kit upgrades Dell Optiplex 745 and 745C desktops
  • 800 MHz DDR2 speed matches PC2-6400 system bus
  • CL6 latency with 6-6-6 timing for stable operation
  • 8 V unbuffered non-ECC modules install without configuration
  • Two 240-pin DIMMs using major-brand chips in 2Rx8 layout

Caractéristiques

BrandComputer Memory Solutions
ModelCM256646400DIMMDR
Capacity4GB (2 x 2GB)
Type240-Pin DDR2 SDRAM
SpeedDDR2 800 (PC2 6400)
CAS LatencyCL6
Timing6-6-6
Voltage1.8V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemDell Optiplex 745, 745C Series Desktop
Package Content2 Memory RAM Sticks

Questions sur cet article

Should I pick the 2 x 2 GB kit or a single 4 GB module for my Dell Optiplex 745?

The kit provides two matched 2 GB DIMMs for dual-channel operation on the Optiplex 745 or 745C. A single 4 GB stick would run in single-channel mode and may not be supported by the system's memory controller.

What does the 800 MHz rating deliver in daily use on this desktop?

The modules run at DDR2-800 with CL6 timings, giving the Optiplex 745 its maximum supported memory bandwidth for smoother multitasking and faster application loading.

How does the PC2-6400 designation affect compatibility with my Optiplex 745?

PC2-6400 confirms DDR2-800 speed and 1.8 V operation, matching the Optiplex 745 and 745C memory controller exactly. The 240-pin unbuffered non-ECC design fits the desktop's DIMM slots without adaptation.

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