Will these RAMs work in Mac Pro 1,1

Discussion in 'Mac Pro' started by redhatcode29, Nov 26, 2015.

  1. redhatcode29, Nov 26, 2015
    Last edited: Nov 26, 2015

    redhatcode29 macrumors 6502

    redhatcode29

    Joined:
    Jul 21, 2014
    Location:
    Kuala Lumpur
    #1
    Guys, need some urgent advise...will these be fine in Mac Pro 1,1 . How about if i mix the orange and blue (one of the blue ones have a different spec)

    these are said to be FB rams and... i have someone telling me that i need normal DIMM not FB DIMM (feel like smacking em)

    also, how do i define that these rams are FB ? thanks...

    20151126061401-1.jpg 20151126061401-2.jpg
     
  2. MacUser2525 macrumors 68000

    MacUser2525

    Joined:
    Mar 17, 2007
    Location:
    Canada
    #2
    You can tell the registered (FB-DIMM) idea from the 2Rx4 in the model number naming the "R" part. The timings (with one exception they should just drop back or that is the theory anyways) are identical with both sets the 555 -11 as is the speed so that should not be problem. There are no heat sinks like Apple used on them but that was mainly for the 512mb modules that ran hotter than hell so I have read. I am thinking you have good chance of getting them going in your machine.
     
  3. redhatcode29 thread starter macrumors 6502

    redhatcode29

    Joined:
    Jul 21, 2014
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    Kuala Lumpur
    #3
    Thanks for e explanation. So i conclude that these are FB rams. Also that mixing 555-11 with 555-12 will not be an issue. Correct me if i m wrong. Thanks.
     
  4. tripmusic macrumors 6502

    tripmusic

    Joined:
    Oct 26, 2012
    Location:
    MA
    #4
    I had trouble with FB Dimms without the larger heatsinks. Maybe the sticks I got were just bad, but the diagnostic LED's were all wacky. Sent them back. You can find those sticks with the required thick heatsinks for pretty cheap now
     
  5. redhatcode29 thread starter macrumors 6502

    redhatcode29

    Joined:
    Jul 21, 2014
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    Kuala Lumpur
    #5
    Ohhh... Dear

    True cheap. But at my location, its not. Thanks for the info.
     
  6. redhatcode29 thread starter macrumors 6502

    redhatcode29

    Joined:
    Jul 21, 2014
    Location:
    Kuala Lumpur
  7. MacUser2525 macrumors 68000

    MacUser2525

    Joined:
    Mar 17, 2007
    Location:
    Canada
    #7
    Your welcome good to see you got it done with no problems.
     

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