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New PC133 Memory not Being Recognized

Discussion in 'Hardware' started by denregan54, May 26, 2003.

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  1. denregan54

    denregan54 Thread Starter

    Joined:
    Apr 16, 2003
    Messages:
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    I am running Windows XP on an Abit KA7-100 with an Athlon 700.
    256MB PC100 memory fitted in bank 0/1

    I added 256MB PC133 non ECC memory in bank 2/3

    This new memory is not being recognized.

    I am confident that I fitted the module correctly and it is locked in position.

    I expected the extra memory to be automatically found but maybe I need to alter something in the BIOS.

    Any advice will be much appreciated.
     
  2. Ian291

    Ian291

    Joined:
    Feb 2, 2003
    Messages:
    81
    First make sure that both are the same type ie. unbuffered/ non ecc ....some boards will not let you mix and match.

    Then you need to put your new stick in the first slot on the board, and the old one in the second. The fastest stick in my experience always works best in pole position, even though your board will default all memory timings/speeds to the slowest one.

    Hope this helps.
     
  3. RSM123

    RSM123

    Joined:
    Aug 1, 2002
    Messages:
    5,531
    As stated above - if you install different speed memory sticks, they will all run at the speed of the slowest. Some machines require the fastest and largest stick in the first slot or you will get an error of some sort. However to benefit you need two PC133 sticks.
     
  4. MysticEyes

    MysticEyes Banned

    Joined:
    Mar 30, 2002
    Messages:
    4,825
    Try just the new stick by itself. Mixing types and brands does not always work. Your 2 sticks have different densities. With some older computers (usually the proprietary ones, Compaq, Dell, HP) if it calls for PC100, PC133 will not work.
     
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