2GB For The Road - Crucial 2GB PC2-4200 SODIMM - Test System and CPU-Z Info

Article Index
2GB For The Road - Crucial 2GB PC2-4200 SODIMM
Test System and CPU-Z Info
2GB vs 1GB in the Mobile World

Test System:

Our test system is an Acer TravelMate 2428AWXMi.  Below is a full list of the specs.

  • Pentium M 745A (1.8GHz/2MB)
  • 14.1" WXGA wide TFT LCD
  • 1024MB DDR2 SDRAM (2x512MB) Nanya
  • 2048MB DDR2 SDRAM (2x1024MB) Crucial
  • 100GB 5400rpm HDD.
  • Windows XP Professional SP2
  • Adobe Photoshop CS2
  • Adopbe Premier Elements 2.0

This notebook is a great little laptop, but because it is running a 745A processor it is limited to a FSB of 400MHz.  This is short of the 533Mhz of the Crucial PC2-4200.  Because the laptop cannot run the memory at its rated speed, we are interested in memory size and usage, not bandwidth and speed in this article.  As such we have tested out a few applications known for memory usage.

Below are a few screenshots taken from CPU-Z of the memory configuration in our system.  With Speedstep enabled, the CPU speed shown is 600Mhz not the rated 1.8GHz when running at full throttle.

CPU-Z Main
CPU-Z Main
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CPU-Z Memory
CPU-Z Memory
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CPU-Z SPD
CPU-Z SPD

As you may have noticed, CPU-Z reports the memory as PC2-4300 - contrary to the PC2-4200 that is stated at Crucial's site.  You'll also notice that the laptop is not setting the memory at the correct timings for PC2-3200.  The timings should be 3-3-3-9 and they are 4-3-3-9.  I can't blame the memory as other DDR2 that I've had in this laptop was all detected at 4-3-3-x.

On the last page we'll take a look at a few real-world tests and draw some conclusions.