Memory issue

Discussion in 'Mac Pro' started by LeKiD, Mar 5, 2008.

  1. LeKiD macrumors regular

    LeKiD

    Joined:
    Aug 31, 2007
    #1
    I just added my new ram 4x2 gigs for a total of 10 with the 2 gigs already in place. My first try made the computer detect 6 gigs, I left the Apple ram in the slots they were in then added equally the other sticks in the next slots (2-3 on each side).

    Unplugged everything, opened it again and moved the third party memory to 1 & 2 and took the Apple memory from slot 1 to slot 3. Restarted the computer and now it detects 8 gigs. Improvement... but there is still an unnoticed 2 gigs somewhere. Anyone!?
     
  2. LeKiD thread starter macrumors regular

    LeKiD

    Joined:
    Aug 31, 2007
    #2
    UPDATE: It's not detecting the third slot which is Apple's memory which worked fine since I've got my MP.

    DIMM Riser A/DIMM 1:

    Size: 2 GB
    Type: DDR2 FB-DIMM
    Speed: 800 MHz
    Status: OK
    Manufacturer: 0x05F7
    Part Number: 0x000000003732353642363145353830304600
    Serial Number: 0x00000000

    DIMM Riser A/DIMM 2:

    Size: 2 GB
    Type: DDR2 FB-DIMM
    Speed: 800 MHz
    Status: OK
    Manufacturer: 0x05F7
    Part Number: 0x000000003732353642363145353830304600
    Serial Number: 0x00000000

    DIMM Riser A/DIMM 3:

    Size: Empty
    Type: Empty
    Speed: Empty
    Status: Empty
    Manufacturer: Empty
    Part Number: Empty
    Serial Number: Empty

    DIMM Riser A/DIMM 4:

    Size: Empty
    Type: Empty
    Speed: Empty
    Status: Empty
    Manufacturer: Empty
    Part Number: Empty
    Serial Number: Empty

    DIMM Riser B/DIMM 1:

    Size: 2 GB
    Type: DDR2 FB-DIMM
    Speed: 800 MHz
    Status: OK
    Manufacturer: 0x05F7
    Part Number: 0x000000003732353642363145353830304600
    Serial Number: 0x00000000

    DIMM Riser B/DIMM 2:

    Size: 2 GB
    Type: DDR2 FB-DIMM
    Speed: 800 MHz
    Status: OK
    Manufacturer: 0x05F7
    Part Number: 0x000000003732353642363145353830304600
    Serial Number: 0x00000000

    DIMM Riser B/DIMM 3:

    Size: Empty
    Type: Empty
    Speed: Empty
    Status: Empty
    Manufacturer: Empty
    Part Number: Empty
    Serial Number: Empty

    DIMM Riser B/DIMM 4:

    Size: Empty
    Type: Empty
    Speed: Empty
    Status: Empty
    Manufacturer: Empty
    Part Number: Empty
    Serial Number: Empty
     
  3. deathshrub macrumors 6502

    Joined:
    Oct 30, 2007
    Location:
    Christmas Island
    #3
    The 1 gig modules that shipped with your Mac Pro go in slots A3 and A4.
     
  4. djjclark macrumors regular

    Joined:
    Feb 17, 2008
    #4
    you see any red lights on the riser cards? There is one red led for each memory slot and if lit can mean a bad memory dimm or a bad riser.
     

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