K7D Master Motherboard won't take 2 GB of RAM

Discussion in 'MSI' started by tahoekid77, Nov 21, 2008.

  1. tahoekid77

    tahoekid77 Guest

    I recently tried adding 2 additional 512 MB SIMMs and after booting,
    the system Beeps once per 5 seconds forever, and won't start. These
    are new modules and are identical in brand and ID as the other pair.
    Not sure what to do next.
    tahoekid77, Nov 21, 2008
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  2. tahoekid77

    Paul Guest

    Test the new RAM separately, one stick at a time.
    Does all the new RAM work ? Does it pass memtest86+
    (memtest.org) ?

    Next, test one old stick plus one new stick. Does
    that work ?

    Examine the RAM types carefully, to make sure they're all the
    same type.

    If you can manage to boot the computer with just one
    stick of the new stuff, or just one stick of the
    old stuff, you may be able to use CPUZ (cpuid.com)
    to dump the SPD table for the RAM. Hopefully, the
    problem will be resolved, before you need to go
    through the hexadecimal table of SPD data. (You
    need a JEDEC document from jedec.org to decode
    the values.) Use the "About" tab and click
    "register dump". This is my SPD, as an example
    of what a table looks like. Since my RAM is DDR2,
    this table won't look the same as yours. The SPD
    chip on each DIMM, has room for 256 bytes. The
    first byte is the length field, and in my case,
    only the first 128 bytes contain valid data.

    Dump Module #1
    0 1 2 3 4 5 6 7 8 9 A B C D E F
    00 80 08 08 0E 0A 61 40 00 05 30 45 00 82 08 00 00
    F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

    AMD762 supports four sticks of registered RAM. And possibly
    only two sticks of unbuffered RAM.

    See PDF page 24.

    "Note: Registered DIMMs can be placed into DDR1~4 but
    unbuffered DIMMs can be placed into DDR1~2 only."

    You cannot mix registered and unbuffered in the computer
    at the same time.

    Paul, Nov 21, 2008
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  3. tahoekid77

    tahoekid77 Guest

    They are all the same memory, same vendor, part number, etc. All
    ordered in the past few weeks. The memory that was original in the
    machine was removed.
    tahoekid77, Nov 22, 2008
  4. tahoekid77

    tahoekid77 Guest

    I tested each sim, everythings fine until one of them (any one of
    them) occupies the third slot. Then the beeping starts.
    tahoekid77, Nov 22, 2008
  5. tahoekid77

    tahoekid77 Guest

    It's more than likely the memory is unbuffered, which would pretty
    much explain the situation.
    The guys at 1800Memory sold it to me, I gave them the motherboard
    information, etc but looks like they sent me the wrong type.
    tahoekid77, Nov 22, 2008
  6. tahoekid77


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