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Image for 2GB DDR2 PC2-6400 Unbuffered NON-ECC 1.8V 256Meg x 64 from Crucial USA

2GB DDR2 PC2-6400 Unbuffered NON-ECC 1.8V 256Meg x 64

CT25664AC800

  • Brand: Crucial
  • Form Factor: SODIMM
  • Capacity: 2GB
  • Warranty: Limited Lifetime
  • Specs: DDR2 PC2-6400 • CL=6 • Unbuffered • NON-ECC • DDR2-800 • 1.8V • 256Meg x 64 •
  • Series: Crucial
  • view all product details
5 stars 171reviews
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  • $29.99

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2GB DDR2 PC2-6400 Unbuffered NON-ECC 1.8V 256Meg x 64

product information

Brand
Form Factor
Capacity
Warranty
Specs
Series
ECC
Kit Qty
Speed
Tracer
Voltage
DIMM Type
Bullet Features
Product Specifications
Brand Crucial
Form Factor SODIMM
Capacity 2GB
Warranty Limited Lifetime
Specs DDR2 PC2-6400 • CL=6 • Unbuffered • NON-ECC • DDR2-800 • 1.8V • 256Meg x 64 •
Series Crucial
ECC NON-ECC
Kit Qty 1
Speed 800MHZ
Tracer False
Voltage 1.8V
DIMM Type Unbuffered
Bullet Features Increases system performance
More information

200-pin SODIMM


DDR 200-pin SODIMM: Approximately 2.625 in. by 1.25 in. (66.7 mm by 31.75 mm)
 DDR2 200-pin SODIMM" width=
DDR2 200-pin SODIMM: Approximately 2.625 in. by 1.18 in. (66.7 mm by 30 mm)

A small outline dual inline memory module (SODIMM) consists of a number of memory components (usually black) that are attached to a printed circuit board (usually green). SODIMMs get their name because they are smaller and thinner than regular DIMMs. The gold pins on the bottom of the SODIMM provide a connection between the module and a socket on a larger printed circuit board. The pins on the front and back of a SODIMM are not connected.

200-pin SODIMMs are used to provide DDR and DDR2 SDRAM memory for notebook computers. 200-pin SODIMMs are available in PC2700 DDR SDRAM, PC3200 DDR SDRAM, DDR2 PC2-6400 SDRAM, DDR2 PC2-5300 SDRAM, DDR2 PC2-4200 SDRAM and DDR2 PC2-3200 SDRAM. To use DDR or DDR2 memory, your system motherboard must have 200-pin SODIMM slots and a DDR- or DDR2-enabled chipset. A DDR or DDR2 SODIMM will not fit into a standard SDRAM SODIMM socket. (Information about which memory technology your system uses is included in the Crucial Memory Advisor™ tool.)

The number of black components on a 200-pin SODIMM can vary, but it always has 100 pins on the front and 100 pins on the back, for a total of 200. 200-pin SODIMMs are approximately 2.625 inches long and 1.25 inches high, though the heights can vary. Like 144-pin SODIMMs, 200-pin SODIMMs have one small notch within the row of pins; however, the notch on the 200-pin SODIMMs is closer to the left side of the module.

product reviews

OID: AF3F7960A5CA7304
PR file path: /pwr/96v439cu/inline/05/57/AF3F7960A5CA7304-en_US-1-reviews.html

REVIEW SNAPSHOT®

by PowerReviews
Crucial2GB 200-pin SODIMM DDR2 PC2-6400
 
4.8

(based on 171 reviews)

Ratings Distribution

  • 5 Stars

     

    (147)

  • 4 Stars

     

    (16)

  • 3 Stars

     

    (7)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (0)

99%

of respondents would recommend this to a friend.

Pros

  • Reliable (108)
  • Increases speed (87)
  • Fast (80)
  • Easy to install (66)
  • Large capacity (22)

Cons

  • No instructions included (8)

Best Uses

  • Increased performance (111)
  • Multiple desktop applications (66)
  • Multimedia (34)
  • Gaming (6)
    • Reviewer Profile:
    • Casual user (93), Power user (75)
    • Primary use:
    • Personal (137), Business (33)

Most Liked Positive Review

 

3GB->4GB Crucial Memory Positive Upgrade

This memory upgrade was problem free; easy. It took just one or two minutes to complete the installation. The customer service was excellent; [...] I will buy from them again and...Read complete review

This memory upgrade was problem free; easy. It took just one or two minutes to complete the installation. The customer service was excellent; [...] I will buy from them again and I already recommended them to a relative who will procure 4GB from them soon. The improvement of performance is great just going from 3GB to 4GB. I am considering adding a 4GB memory chip stick; but so far my Zino HD (Dell 400) works fast and fine for my multiple program uses. I use Kubuntu (debian based) and Microsoft Windows 7. I some times run Xubuntu which is really fast with this chip set. The installation involves unscrewing two phillips screws underneath the Zino. The cover comes off with the two chips staggered one over the other. I did not need to remove the top chip to lift up and out the bottom chip (new one.) I surf the web, buy stuff online, use emacs, write and read email; but I don't do any gaming. I watched youtube and hulu or it is hula? Both worked great on my Zino. I have an AMD Athlon 3250e processor, ATI Radeon HD 3200 Video Card, 250 GB Hard Drive. I'm delighted with this chip set.

VS

Most Liked Negative Review

 

Wouldn't work with Toshiba A215-S5837

Wanted to upgrade my girlfriend's Toshiba A215-S5837 and went with Crucial - I always do and they've never let me down.

I used the compatibility tool to choose and went...Read complete review

Wanted to upgrade my girlfriend's Toshiba A215-S5837 and went with Crucial - I always do and they've never let me down.

I used the compatibility tool to choose and went with two of these. Old memory was 5300 speed, these are 6400 - but they were supposed to be compatible.

Computer wouldn't boot, no error message - nothing. Put the old memory back in and back to normal. Tried one module at a time, thinking one was possibly bad, no change.

Emailed support and made a few calls (support staff is excellent!) and tried everything they suggested, including BIOS update - no help.

Finally they suggested this test - one old module (known to work) in the A slot and a new module in the B slot. This would force the B slot to run at 5300 as long as it was good (odds of two bad sticks shipping is tiny.)

Jackpot! Booted with no problem and recognized the total 3gb installed when tried with both new modules - indicating the problem is a BIOS / motherboard intolerance for the faster speed.

So they are now going to exchange these two for two 5300 sticks, and I am sure all will be well.

P.S. - they were kind enough to extend the time limit on the exchange despite the fact my girlfriend took the laptop on vacation for two weeks because the site said it was compatible and I had contacted them with the issue. Crucial's support and customer service is #1!

So if you own this machine, be aware the newer faster modules may not work.

I remain a loyal Crucial customer!

Reviewed by 171 customers

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5.0

Performed as advertised

By Dave

from Fairfax, VA

About Me Casual User

Verified Reviewer

Pros

  • Increases Speed
  • Reliable Performance

Cons

    Best Uses

    • Increased Performance
    • Multiple desktop applications

    Comments about Crucial 2GB 200-pin SODIMM DDR2 PC2-6400:

    I am a casual user and needed more RAM to improve degraded performance. The online tool guaranteed that I got exactly the right product. It was a snap to install and I see improvement in startup speed.

    • Primary use:
    • Personal
     
    5.0

    Great experience as always

    By oilcan

    from Midwest

    About Me Power user

    Verified Reviewer

    Pros

    • Large Capacity
    • Reliable Performance

    Cons

      Best Uses

      • Increased Performance

      Comments about Crucial 2GB 200-pin SODIMM DDR2 PC2-6400:

      The memory selection was correct as always. Have been using Crucial memory for many years. It has always been correct for the device, installs without a problem and is reliable.

      • Primary use:
      • Business
       
      5.0

      Perfect match for my older system

      By ralplpcr

      from Raleigh, NC

      Verified Reviewer

      Pros

      • Increases Speed
      • Nice performance boost
      • Reliable Performance

      Cons

      • None so far

      Best Uses

      • Increased Performance
      • Multimedia

      Comments about Crucial 2GB 200-pin SODIMM DDR2 PC2-6400:

      This is a perfect match for my older laptop. Even though the official specs say this isn't supported, I trusted the memory configurator - and was pleased to find that it worked perfectly. Now my old netbook has a new life, as well as a little boost in performance. :)

      • Primary use:
      • Personal
       
      4.0

      Would purchase again

      By Tom

      from Lowville, NY

      About Me Casual User

      Pros

      • Easy To Install
      • Increases Speed
      • Quaility Product

      Cons

        Best Uses

        • Increased Performance

        Comments about Crucial 2GB 200-pin SODIMM DDR2 PC2-6400:

        I found some cheaper units, but lately I have decided that you get what you pay for, so I went with a name brand.

        • Primary use:
        • Personal
         
        5.0

        Working Great

        By ahusker

        from Clay Center, KS

        About Me Power user

        Verified Reviewer

        Pros

        • 2gb To 4gb Works Great
        • Fast
        • Increases Speed
        • Reliable Performance

        Cons

          Best Uses

          • Increased Performance
          • Multimedia
          • Multiple desktop applications

          Comments about Crucial 2GB 200-pin SODIMM DDR2 PC2-6400:

          Was having trouble with multiple programs running while trying to update church website. The added 2gb's of ram definitely helped with that. Very pleased with the results.

          • Primary use:
          • Personal
           
          5.0

          Perfect

          By VIOLATOR

          from Lafayette, LA

          About Me Power user

          Verified Reviewer

          Pros

          • Fast
          • Increases Speed
          • Reliable Performance

          Cons

            Best Uses

            • Increased Performance

            Comments about Crucial 2GB 200-pin SODIMM DDR2 PC2-6400:

            I have ordered numerous items from Crucial. I use the "Wizard" whenever I can and it tells me exactly what I need. I have never had any problems with any of my orders or the products. Shipping is always very fast as well. I never any concerns when ordering from Crucial.

            • Primary use:
            • Personal
             
            3.0

            too much whiz but not enough bang

            By Cher the Walker

            from Port Charlotte, FL & Maine

            About Me Casual User

            Verified Reviewer

            Pros

            • On Sale

            Cons

            • Unreliable Performance

            Best Uses

            • Email
            • Increased Performance

            Comments about Crucial 2GB 200-pin SODIMM DDR2 PC2-6400:

            I really didn't see much improvment of speed but that could be because I subscribe to the cheapest internet access. My husband on the other hand felt it was faster. Ever since the memory was changed, once in a while when I shut down my computer I get a quick message that says something about not able to read? memory. It goes away as quickly as it comes up but does not interfere with turning on and off the laptop.

            • Primary use:
            • Personal
             
            4.0

            Arrived and Worked as Expected

            By Scegbers

            from Illinois

            About Me Casual User

            Verified Reviewer

            Pros

            • Increases Speed

            Cons

              Best Uses

              • Increased Performance

              Comments about Crucial 2GB 200-pin SODIMM DDR2 PC2-6400:

              My Dell Vostro 1500 was getting slow. I installed these chips to double the RAM capacity and there was immediate improvement. Shipping was fast, product was exactly as described and installation was easy.

              • Primary use:
              • Personal
               
              5.0

              Quick, easy upgrade

              By JC

              from Dallas, TX

              About Me Casual User

              Verified Reviewer

              Pros

              • Easy installation
              • Fast
              • Increases Speed
              • Reliable Performance

              Cons

                Best Uses

                • Increased Performance
                • Multiple desktop applications

                Comments about Crucial 2GB 200-pin SODIMM DDR2 PC2-6400:

                My laptop came with 2mb RAM, which is lousy. It would take a long time to launch programs and sometimes it would just sit there for minutes while it was busy doing something in the background. Upgrading to 4mb made a real improvement.

                I especially liked the system analyzer that pointed me to the exact products that would work on my computer ... no guessing and hoping!

                It arrived quickly, was easy to install and works as expected. I'm very satisfied..

                • Primary use:
                • Personal
                 
                5.0

                Good product

                By Jvo631

                from Central Islip, NY

                About Me Casual User

                Pros

                • Fast
                • Increases Speed
                • Reliable Performance

                Cons

                  Best Uses

                  • Gaming
                  • Multimedia

                  Comments about Crucial 2GB 200-pin SODIMM DDR2 PC2-6400:

                  Upgraded to twice the RAM that Dell puts in. Definitely makes a positive difference.

                  • Primary use:
                  • Personal

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