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RAM not made for snow leopard or lion?

791 Views 11 Replies Latest reply: Nov 15, 2013 10:11 AM by Sam Beaver RSS
Sam Beaver Level 1 Level 1 (120 points)
Currently Being Moderated
Jul 12, 2011 3:31 PM

Still running leopard.

Snow leopard still gets terminal error and shuts down after heavy useage or after a period of time. have troubleshot everything to the point where my RAM is in question. I did upgrade to 32 GB RAM shortly before first attempt at installing snow leopard. Bought RAm new from trusted source-OWC. How can I determine the cause of my failure to upgrade OS?

 

yes, have attempted clean installs with just base software. have tried various cloning methods. different hard drives. SSD hard drive. resetting all RAM, unplugging everything, removing all windows 7 and all windows components. still get terminal shutdown errors in anything besides Leopard.

2X2.8 QCIXeon Mac Pro, Mac OS X (10.5.8), ipad 3G, iphone 3G, MacBook C2D, imacdv, ipodtouch, HP130NR, Kon
  • Kappy Level 10 Level 10 (220,960 points)
    Currently Being Moderated
    Jul 12, 2011 3:35 PM (in response to Sam Beaver)

    The only definitive way to know if RAM is the issue is to remove RAM in pairs until you find the pair that is causing the problem. Then replace the pair. A pair is usually one from Riser A and the matching slot in Riser B.

  • Kappy Level 10 Level 10 (220,960 points)
    Currently Being Moderated
    Jul 12, 2011 3:45 PM (in response to Sam Beaver)

    The modules need not have completely failed. All that's required is for a bit or byte to go bad then each time software tries accessing that area of RAM it will fail.

     

    If it's not the memory then it may be a motherboard problem.

     

    Is your problem only with the Terminal application? If so then you may just have a bad preference file.

  • Grant Bennet-Alder Level 8 Level 8 (48,105 points)
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    Jul 12, 2011 5:22 PM (in response to Sam Beaver)

    terminal error and shuts down

    You are playing a little loosely with the terminology.

     

    Do you get kernel panics? If so, those are logged, and you can look at the log and try to determine the cause of the problem.

     

    Do you mean your Mac Powers Off? that is most often caused by overheating, which is most often caused by dust bunnies inside -- but do not vacuum !!

    Home vacuum cleaners plastic wands generate large static charges that can kill electronics. Move your Mac to an area where you don't care about dust and blast them airborne and out of your Mac with compressed air.

    Beige G3, G4/867, G4/dual 1.25 MDD, MacPro'09 w cheap SSD, Mac OS 8.6 or Earlier, and 9.2, 10.5 and Server - LW IIg, LW 4/600, ATalk ImageWriter L
  • The hatter Level 9 Level 9 (58,535 points)
    Currently Being Moderated
    Jul 13, 2011 8:05 AM (in response to Sam Beaver)

    Heat, air flow, etc

     

    Monitor the temps and sensor readings

    Boost the fan speed before it warms up

    make sure the case has good air flow and circulation

    fbdimms are hot, they also consume 10-15W for each DIMM

    there should be very hot air out the back

    graphic cards and air along with temps

     

    Take a look at iStatPro and/or Temperature Monitor along with SmcFanControl 2.2.x

  • Grant Bennet-Alder Level 8 Level 8 (48,105 points)
    Currently Being Moderated
    Jul 18, 2011 7:22 PM (in response to Sam Beaver)

    If you are getting kernel panics, the reason stated in the log can be very helpful. You can post the entire log of an event here, and readers can help you decipher it.

     

    Mac OS X: How to log a kernel panic

     

    Reasons like machine check indicate Hardware failures. Reasons like pagefault/segfault could be caused by lots of things. There are tons of others.

     

    A new version of Mac OS X is unlikely to make things better -- very likely to make things worse.

    Beige G3, G4/867, G4/dual 1.25 MDD, MacPro'09 w cheap SSD, Mac OS 8.6 or Earlier, and 9.2, 10.5 and Server - LW IIg, LW 4/600, ATalk ImageWriter L
  • The hatter Level 9 Level 9 (58,535 points)
    Currently Being Moderated
    Nov 13, 2013 3:02 AM (in response to Sam Beaver)

    Amazon has excellent FBDIMM for $25 for 2 x 2GB OWC is not when it comes to same FBDIMMs and 4GB DIMMs cost more. You got a bad set is all I replaced all mine from Amazon

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