I am testing some samsung ram.

Discussion in 'Mac Pro' started by philipma1957, Sep 8, 2010.

  1. philipma1957 macrumors 603

    philipma1957

    Joined:
    Apr 13, 2010
    Location:
    Howell, New Jersey
    #1
    http://www.samsung.com/global/syste...708555ds_ddr3_1gb_d-die_based_rdimm_rev11.pdf


    here is the full pdf. here is the model number.


    M393B5170DZ1-CF8

    There are a few good sellers of this at 90 to 120 for 4gb sticks. Or 360 to 480 for 4 sticks of 4 toal 16gb. This is for the 2.8 quad and the 3.2 quad.

    It specs that it should work. I will get back on this over the weekend or monday. As of now I don't know if it works. Apple uses samsung a lot. I have used samsung in many of my mini mods. If it test well I will list the sellers. I get $0 from any of them. If any one knows me from 123macmini forums they will let you know that I did this with a few dozen items for mini's. peace out.
     
  2. covrc macrumors member

    Joined:
    Jan 20, 2010
    #2
    Looking Forward to your followup.

    Thanks for doing this. Looking to see how you make out.:rolleyes:
     
  3. VirtualRain macrumors 603

    VirtualRain

    Joined:
    Aug 1, 2008
    Location:
    Vancouver, BC
    #3
    What are the base timings? The PDF seems to indicate the 1333 RAM has 9-9-9 timings which are relatively high latency, but I'm not sure how this compares to the stock RAM options.
     
  4. philipma1957 thread starter macrumors 603

    philipma1957

    Joined:
    Apr 13, 2010
    Location:
    Howell, New Jersey
    #4

    No the pdf is hard to read. I agree that if these work they will be 7-7-7 for the stock models only. The 2.8 quad and the 3.2 quad. Also the 2.4 oct core may be able to use them,

    I spent a while reading it, I have the base mpro with 1066mhz so I am using the 1066 240 pin ram ecc registered . I am getting cf8 which is a timing of 7-7-7.
    If this ram works It is registered ram so would be all or nothing no mix of the sticks for the 2.8 or 3.2 models. At 90 a stick for 4gb I don't mind buying the 4 sticks 360 for working ram is a lot better then 600 at owc. The seller will let me return them if they don't work. So this test will be for just the 1066ghz ram 4gb stick size.

    In the one machine I have

    (due fri) the 2.8 quad.
     
  5. philipma1957 thread starter macrumors 603

    philipma1957

    Joined:
    Apr 13, 2010
    Location:
    Howell, New Jersey
    #5

    No the pdf is hard to read. They have all 3 timing listed for each stick model. So the stick model I am testing come in 3 choices 5-5-5 or 7-7-7 or 9-9-9 The code for my sticks is cf8 that is a 7-7-7 timing

    I agree that if these work they will be 7-7-7 for the stock models only. The 2.8 quad and the 3.2 quad. Also the 2.4 oct core may be able to use them,

    I spent a while reading it.

    I have the base mpro with 1066mhz so I am using the ddr3 1066 240 pin ram ecc registered 4gb stick. I am getting the model with (- cf8 ) which is a timing of 7-7-7.
    If this ram works It is registered ram so would be all or nothing no mix of the sticks for the 2.8 or 3.2 models. At 90 a stick for 4gb I don't mind buying the 4 sticks for 360. That price for working 16gb of ram is a lot better then 600 at owc. The seller will let me return them if they don't work. So this test will be for just the 1066ghz ram 4gb stick size 4 of them for a total of 16gb. I will use them
    In the one machine I have
    (due fri) the 2.8 quad.
     
  6. philipma1957 thread starter macrumors 603

    philipma1957

    Joined:
    Apr 13, 2010
    Location:
    Howell, New Jersey
    #6
    the seller sent me the wrong ram. I returned it and was refunded. So for Now i just grabbed a 1gb stick from owc. I will do some testing later in this area.
     

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