How can I tell if I have a bad ram module?

Discussion in 'MacBook Pro' started by gt40x4, Mar 11, 2010.

  1. gt40x4 macrumors member

    gt40x4

    Joined:
    Mar 8, 2010
    Location:
    England
    #1
    I just in stalled 4 gigs of ram in my mbp. the next day it seems as though that it has gotten slower. any suggestions or how can i test for a bad ram stick?
     
  2. MacModMachine macrumors 68020

    MacModMachine

    Joined:
    Apr 3, 2009
    Location:
    Canada
    #2
    download memtest x86, burn it to cd/dvd

    put it in your mac's cd drive, hold option when you boot the mac and boot from that cd.

    change to test 8 using test selection, this will tell you if you have a bad stick of memory quick, if you do not select test 8 it will work, it just takes alot longer because it tests other aspects of the memory.
     
  3. gt40x4 thread starter macrumors member

    gt40x4

    Joined:
    Mar 8, 2010
    Location:
    England
  4. Chromide macrumors newbie

    Joined:
    Oct 15, 2008
    Location:
    Michigan
    #4
    if you suspect one is bad and not the other....pull one out and turn it on, see how it runs. then do the same with the other to try and see if only one of them is bad.

    memtest is still the best option.
     
  5. Hmac macrumors 68020

    Joined:
    May 30, 2007
    Location:
    Midwest USA
    #5
    Techtool Deluxe has a quick and dirty RAM test. Probably not as good as MEMTEST, but simpler.
     
  6. hajime macrumors 68030

    Joined:
    Jul 23, 2007
    #6
    Maybe you can swap memory locations and see if the situation can be improved?
     

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