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How do I determine what kind of memory that I need?

I need to know how to determine what kind of memory to buy.

How do I determine whether to use high density or low density memory?

What is the advantage to low density memory?

Are external bus speed, FBS, and/or memory speed the same?

I ask because my laptop external bus speed is 400 MHz but the memory calls for either 200 or 266 MHz memory but I don’t know if they are talking about high or low density memory.

Thank you for your help.

Don Jones

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  • 3 more comments 
  • donejjones Dec 30, 2008

    Knotbeerdan,



    Your guesses contradict everything I have read about high and low density memory, so I need answers to the questions I asked, not guesses.



    All of the manuals say my Inspiron 2650 will only use 256 modules, but the DELL techs put 1 gig modules in their test machine and it worked great. I also know it uses the same Intel chip set as the 8500 which uses 1 gig modules and the Intel manual says it will use 1 gig so you can’t always believe what the manual says.



    Thanks for trying though.



    Don Jones

  • donejjones Dec 30, 2008

    GregL,



    Thanks for the suggestion, but if you read my comment to Knotbeerdan, you will see that I already know that the motherboard will support 1 gig modules, both by talking to DELL techs and experience as well as refering to the Intel mnaual for the chip set. When I ran crucial's scan, it parroted the DELL mnaual exactly, even though DELL uses the same chip set in the 8500 and uses 1 gig chips the 8500 module.



    Now you know that Crucial's scan isn't necessrily right about the maximum memory that will work but gives a SAFE max based on the manufacturer's literature.



    Also, I know from installing my son's memory that it will use memory that is faster than crucil says it will use.

  • donejjones Dec 30, 2008

    knotberdan,



    Don't blame me because you tried to answer quesions that I didn't ask but instead tried to second guess what I really wanted to know and guesed wrong. Next time READ the questions and reply to the questions asked or ask for clarification before answering. You childish rsponse just got yu another inappropriate rating so just keep on lashing out because you messed up.

  • donejjones Dec 31, 2008

    I only rated your responses one time each to the best of my knowledge. In fact I am not sure that I even rated your second response like I said I was going to do.



    If the managemnet has any question they can feel free to contact me to try to straighten it out. At the most there shuld have only been 2 ratings and if you hadn't lashed out at me in your second comment there would have only been 1. I can understand youranger at getting 20 bad ratings, but once again, you need to understand what you are responding to and not second guess and dhten go off on a tangent withot verifying your assumption.



    I consider your answers to have been dealt with and have NO desire to screw with your ratings by putting 20 inappropriates in nor do I even know how to do it.



    This is only the second post I have made and I could NOT find any choice that said that your response was off target or unresponsive so I rated the first one INAPPROPRIATE because it wasn't appropriate to the questions asked. I am sorry if the system glitched and put in a whole bunch of INAPPROPRIATEs.

  • Anonymous Apr 06, 2009

    my motherboard is Time ms-7095(p4mam2-v) I asked crucial to do a scan and they advised me to get 2 x 1gb memory cards, I have bought these but am only getting a total of 990 mb. Is this to do with high and low density ? Can you help me with what I should ask for to get 2gb total.

    regards

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In order to know what kind of memory you need you will have to look up the model of the computer and hopefully that is it. High density is manufacturer specific and it is very important if you order hi density for the wrong brand it wont work. My educated guess is you will want low density 266mhz and depending on how new you might only be able to upgrade 256 mb per stick I hope this helps i know its a confusing subject but really you just need to get online and start researching ram before you make any decisions.

Posted on Dec 30, 2008

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  • Dan rogers
    Dan rogers Dec 30, 2008

    I do not have one of these systems available to me so the best i can do is go online and research this stuff. And on top of that take educated guesses. I don't appreciate the ranking however. It took time and thought and although some facts may be incorrect but that is based off the info given if you want better feedback provide more info. The last bit would have been really helpful before. Now i have to spend a WHOLE lot of time trying to repair my rating thanks for using fixya

  • Dan rogers
    Dan rogers Dec 31, 2008

    i would like to know how you added over twenty innapropriate ratings. Though it seems you already knew the answer and apparently neither of us that tried to help could understand what you were wanting. And all i was sayin is to please not be so fast to rate people as Inappropriate. We work hard to try to help people out. For free, this is not a site that people need to pay for so keeping that in mind sometimes we need people to bear with us while we try to figure out the real question. But again, I would like to know how you added so many Inappropriate ratings?

  • Dan rogers
    Dan rogers Dec 31, 2008

    dont feel bad just wonderin if you had found somethin that i should look out for in the future

  • Dan rogers
    Dan rogers Dec 31, 2008

    I would like to take a second to thank you, Like i said it was not necessary to remove the rating. But thank you anyway.

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Go to Crucial.com and install their configuration utility through your browser. They will tell you what you have and all the combinations you can do to max out your system. Look at the specs of the RAM and you can get it from Crucial or some other vendor.

Posted on Dec 30, 2008

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How to add ram


open the panned which is located on the base of the laptop and just buy a ram use the model number listed in the catalog or you also check from toshiba website using the model number of your laptop.
there will be two slots in the laptop one which will have a RAM on it and the you will see the other slot which is empty so you just need to insert the RAM like the way previous ram is attached on it. and thats it you can turn on your lappy and u r good to go

Jul 24, 2014 | Toshiba Satellite Computers & Internet

Tip

How to Choose Memory (RAM) for Your Computer


You need memory for your computer. But how should you choose the right kind? Whether you're upgrading your computer or building a new one, learn now.

Step 1 If you bought your computer from a manufacturer, use a search engine or go to the manufacturer's site to find the specs on your model. The max RAM found in the specs is likely the max RAM the whole system supports. To find the largest size module the system supports, divide the max supported RAM by the number of slots. Also listed in the specs should be the max speed supported and DDR type (listed as DDR, DDR2, or DDR3). Alternatively, instead of max speed and DDR type, the specs may list something like PC# ####, where the "#" is some number. This is just a different way of representing speed and DDR type, and works equally well in finding the right RAM. If you know the largest supported module, max supported speed, and DDR type, skip to the Tips and Warnings section.

  • Step 2
    If you're building a new computer, follow the above step, except search for motherboard model specs rather than computer model specs. If you don't know the model, look for it printed on the board.

  • Step 3
    If you couldn't find your computer's specs, the info wasn't detailed enough, or you have a custom-built computer, go to http://www.gtopala.com/siw-download.html (also in the resources below) and download the freeware SIW. Install and run it. On the left side, under the "Hardware" section, select "Memory."

  • Step 4
    The "Memory Summary" section on the right side shows the maximum amount of memory that can be installed in the system (listed as "Maximum Capacity"), and below that is the number of memory slots (listed as "Memory Slots"). The "Device Locator" sections tell whether or not memory is installed in that slot. To get the largest size module the motherboard supports, divide the "Maximum Capacity" by "Memory Slots." To get the speed and type, look under the "Device Locator" section, for the listing "Memory Type." Write down the PC#-#### part, where "#" is some number. Also for the listing "Speed," write down the value in parenthesis. For example, in 333 MHz (DDR2 667), write down only the (DDR2 667). You now have the largest supported module, RAM speed, and DDR type. You can use either the PC#-#### or the speed and type when searching for RAM.

  • Step 5
  • In Step 4, you found a supported RAM speed, but it may not be the fastest supported. Just to make sure, look to the left side in SIW. Under the "Hardware" section, select "Motherboard." Using this info, go to the manufacturer's site or do a web search, and see if you can find what maximum RAM speed the motherboard supports.

  • Step 6
    If you're building a new computer and need to buy RAM, look up the specs on your motherboard to find out what kind of memory it supports.

  • Step 7
    The RAM you buy should be no larger than the max supported module size, and should match the type and speed supported by the motherboard.


    Open source site for computer pc error fixing software site is on http://digitalpowering.blogspot.com

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    My acer emachine e730g shutdown regularly with showing dumping physical memory what is the problem?


    It needs more memory..go to Crucial.com let it scan or insert your laptops info and see what the max memory your laptop will handle and what type it uses..you dont have to buy it there..now you know what type it uses..

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    Have 512MB RAM. Was told to max it out because the machine is extremely slow. Has two slots with 256MB. Can I put two 512MB memory modules in those slot to increase 1G or RAM?


    yes, after looking up your laptop on hp's website, I have determined the kind of memory you need; (assuming your computer is the one you put in the question, HP Pavilion ze4805us Notebook PC)

    you need 2x 512 mb, 200-pin, DDR 266 memory

    I looked and found some Corsair (highly respected company in computer memory) memory, for 22.99 for each DIMM (you'll need to buy 2); see link below.

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    You need the low density ram and not high density. Unfortunately the low density stuff is rather more expensive then the high density so you're best trying to get some second hand - ebay maybe? I think the cpx only accepts pc100 even though the crucial site recommends PC133. Hope this helps.

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    take your laptop to a specialist. he will determin whether is it a ddr or not, it will be opened and asuitable ram with memory that will balance that of you processor will be installed. this comes with costs though, so you should be prepared to spend much on the ram buying and installation levies.

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    Gateway laptop screen blank


    If your laptop does not display a POST (power on start test)information your RAM could be faulty or the RAM is not making proper electrical connection.
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    If it still does not work, then the memory may be faulty. You could test your memory in another laptop or try memory from another laptop in your laptop, to determine whether your memory is OK or not before you commit to buy new RAM.

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    Check the Windows Page File to determine whether it's system managed or manually set. The recommended settings is twice the amount of RAM installed in the machine. If set too low the system will hang often, especially when running memory hungry apps.

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    Yes... just need to purchase the right stuff.

    You need to determine if you have DDR or DDRII. And then determine if you have one stick of 512, or if you have 2 sticks of 256. Once you know this information, visit your local Best Buy or purchase somewhere online, a memory upgrade. Such as 2 sticks at 512mb for 1 gig total. Assuming you have two memory slots, should have anyway.

    DDRII is fairly cheap right now, be a good time to upgrade. DDR on the other hand, is still a little more expensive.

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