OWC 2GB DIMM Temperatures

Discussion in 'Mac Pro' started by netnothing, Dec 30, 2007.

  1. netnothing macrumors 68040

    netnothing

    Joined:
    Mar 13, 2007
    Location:
    NH
    #1
    Interesting that a lot of people on here are getting 2GB DIMMS from OWC....I guess the price is finally to that sweet spot.

    For those that just got some, did you get the Apple Qualified (with the similar stock heatsinks) or the Netlist with the flat heatsinks?

    I picked up 8GB (4 x 2GB) to add to my machine, the Qualified version (with the Apple style heatsinks).

    I now have Slots 1&2 on both risers with the OWC 2GB DIMMS, and 2 1GB DIMMS from Crucial on one riser and the stock 512 MB DIMMS on the other.

    What are others getting for temperatures on the OWC RAM?

    With an Ambient of 68F, my OWC RAM is:

    Riser A Slot 1: 142F
    Riser A Slot 2: 153F

    Riser B Slot 1: 149F
    Riser B Slot 2: 151F

    Fans are at the lowest default settings (around 500 & 600 rpm)

    I did notice that the 2GB DIMMS do run hotter, I'm guessing because they have more chips on them?

    However, now that I have all 8 slots filled....FINALLY, my mac pro under load will ramp up the fans. I think even with the Ambient Temp getting up to 85F, and running Rember and other tests, the Mac Pro would only let the OWC RAM get to around 177F.

    Just curious to see if others temps are about the same.

    -Kevin
     
  2. JesterJJZ macrumors 68020

    JesterJJZ

    Joined:
    Jul 21, 2004
    #2
    I got the more expensive ones. The "MacPro Certified" ones. The heat sinks are flat on the sides. I dunno what the difference is but if $100 bucks puts my mind at ease that I get better memory then so be it.
     
  3. /\/\ macrumors regular

    Joined:
    Sep 29, 2007
    Location:
    Germany
    #3
    OWC Shipping

    I am planing to buy the next (January) Mac Pro. :D

    Is OWC shipping outside of the United States? To Germany would be nice. ;)

    Does anybody knows?

    Or is there an other memory reseller for the Mac Pro in Germany? (not :apple: :D)
     
  4. netnothing thread starter macrumors 68040

    netnothing

    Joined:
    Mar 13, 2007
    Location:
    NH
    #4
    Back when I got the Mac Pro (Mar 2007), I got some of the Netlist RAM with the flat heatsinks. I had awful results with them. Very hot and lots of ECC errors.

    So far the Apple Qualified are working great.

    -Kevin
     
  5. JesterJJZ macrumors 68020

    JesterJJZ

    Joined:
    Jul 21, 2004
    #5
    How would I know I'm getting errors? You are scaring me...
     
  6. JesterJJZ macrumors 68020

    JesterJJZ

    Joined:
    Jul 21, 2004
    #6
    Also, how to I check temperatures and fan speeds?
     
  7. netnothing thread starter macrumors 68040

    netnothing

    Joined:
    Mar 13, 2007
    Location:
    NH
    #7
    In Applications -> Utilities -> System Profiler

    In System Profiler, under the Hardware section click on Memory. It will list all the slots and what they are filled with. Status should be OK. If there are ECC errors, it will list them here.

    EDIT: These stats get reset after each reboot.

    -Kevin
     
  8. netnothing thread starter macrumors 68040

    netnothing

    Joined:
    Mar 13, 2007
    Location:
    NH
    #8
  9. JesterJJZ macrumors 68020

    JesterJJZ

    Joined:
    Jul 21, 2004
    #9
    So how do I know anything happens? Should I just check that before I shutdown? I usually just sleep, does that reset it?
     
  10. netnothing thread starter macrumors 68040

    netnothing

    Joined:
    Mar 13, 2007
    Location:
    NH
    #10
    Not sure about the reset at sleep. Basically if everything is running fine you shouldn't have any problems. The ECC RAM in the Mac Pros are there to correct errors. However, typically bad RAM or overheating RAM can produce many ECC errors, which could lead to instability or kernel panics.

    Maybe, after using your machine heavily for a while, check the system profiler to see if there are any errors.

    -Kevin
     

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