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  1. #16
    Mainyehc
    Guest
    Bad RAM!!!
    Bad news again... Unfortunately, I couldn't rescue my data... Anyway, it's not like it's the end of the world, and at least my iTunes library should be intact (it was the only thing I rescued before the big crash, apart from a few iPhoto albums...)

    However, I finally decided to run Apple Hardware Test. And what did I get? An error, in the memory check. So, I guess I found the culprit; it's that stick of 1GB RAM. Honestly, I don't get it... I got it from a reliable vendor (perhaps the best in my area), I checked and double checked the specs: 400MHz PC 3200 SDRAM. Power Mac RAM... And it's faulty, or conflicting with my system, I dunno. All I know is that I've already performed a clean install, and my Mac is still behaving VERY weird. I'm really considering removing it right away... What do you think?

    By the way, here is the error:

    "***ERROR*CODE***ERROR*CODE***
    2MEM/104/4: DIMM0/J4000
    ***ERROR*CODE***ERROR*CODE***"

  2. #17

    Macman's Avatar
    Member Since
    Oct 30, 2004
    Location
    San Antonio, Texas
    Posts
    4,374
    Specs:
    PowerMac G4 Cube 450mhz 832mb
    sounds like bad ram, just take it out, contact the vendor you got it from and get a replacement. where did you get it? kingston is usually good brand, try crucial.com or owc.
    I think the erase and install was not needed had you simply removed that ram stick and then tried starting up but its too late now.

  3. #18
    Mainyehc
    Guest
    Weird bug...
    OS X is presenting me with a very weird bug... The system can't display numbers properly!! In the Finder, sometimes I have, for example, 236 items in a folder, I select 6 items and it will say something like "4 items out of 10 selected", it's 16:58 (4:58 PM) and it will display "16:5" in the menu bar, I mean, what the hell is going on?? Is this because of the bad RAM??

    edit: I got it... my iMac, right now, can't display both the number 8 and number 9!! I'm installing updates with System Update, and when the optimization was between 80% and 100%, I would get single digit numbers, like 7% instead of 87%. Same goes for the clock: 17:08 and 17:09 appeared as "17:0". WTF??

  4. #19
    Mainyehc
    Guest
    Quote Originally Posted by Macman
    sounds like bad ram, just take it out, contact the vendor you got it from and get a replacement. where did you get it? kingston is usually good brand, try crucial.com or owc.
    I think the erase and install was not needed had you simply removed that ram stick and then tried starting up but its too late now.
    Are you sure?? The Target Disk mode thing failed completely. I mean, totally! It would say, again, that it couldn't check and repair the hard drive. Can't the bad ram inflict some serious damage to the filesystem? It seems so... But then again, I'm not used to deal with this bad ram thing, the only thing I installed ram was when I added a 128MB stick to my PC, and everything went fine.

  5. #20

    Macman's Avatar
    Member Since
    Oct 30, 2004
    Location
    San Antonio, Texas
    Posts
    4,374
    Specs:
    PowerMac G4 Cube 450mhz 832mb
    ya, if firewire disk mode didnt even work, but that bad ram could cause many problems, after the updates, repair permissions, if that doesnt fix it, let us know.

  6. #21
    Mainyehc
    Guest
    Everything fine now...
    Except for some weird glitches. I've had to force a reboot more than once, because sometimes, I told the system to reboot and it wouldn't reboot. It got stuck in the blue screen with that grey spinning wheel.

    But apart from that, now that I removed the RAM, I did not get any more big troubles. Now I'm desperately waiting for a replacement (maybe they're out of stock, anyway, the store hasn't contacted me yet), especially because I got used to having 1,25GB of RAM and now my machine is soooooo sloooooooow in comparison...

    And btw, the RAM's brand is Lifetime. I was told at the store that it's a good quality brand, what's your opinion?

  7. #22
    ravenstor
    Guest
    i had a similiar problem and thought it was bad ram, turned out be the original installation disk was slightly scratched and corrupted the system didn't show up till i put in some new ram, did it twice on 2 diff mem sticks, local repair installed fresh osx and it was all fine.

  8. #23

    Absolute Zero's Avatar
    Member Since
    Aug 05, 2003
    Location
    I'm slowly sinking in the posts of Mac-forums
    Posts
    1,246
    Specs:
    PowerBook 12" Combo Drive/867 MHz/256 MB RAM/40 GB hard drive/Mac OS X 10.3.5/AirPort Extreme it sux
    If you can, buy a new hard drive and install it yourself. I believe there are instructions at apple.com.

  9. #24
    zahadum
    Guest
    ram errors vs bad installer -> disk errors?
    Quote Originally Posted by ravenstor
    i had a similiar problem and thought it was bad ram, turned out be the original installation disk was slightly scratched and corrupted the system didn't show up till i put in some new ram, did it twice on 2 diff mem sticks, local repair installed fresh osx and it was all fine.
    yes, it does seem strange that a mem err should produce a side-ffect like a disk error!

    disk util can not repair this msg - "reserved fields in the catalog record have incorrect data".

    on the other hand, i cant understand how a defective installer (disk) could possibly effect any system files that would work OK with one set of mem chips but suddenly not work OK for other ram chips!? ... only way i can imagine this idea is if there are special logical addresses that the kernel uses that suddenly get 'touched' when the physical location of that address is (re)mapped - is that what a good service tech told you? ....

    and btw: the installer extensively checks the media, so how is it even possible that the dvd installer could have ever made a corruption/mistake in the first place?

    note: hw disagnostic reports same err msg as this fellow had with his 1GB part ...
    the kernel panic msg reports 'invalid memory access' --
    %SRR0: (various addresses - eg 000768a8)
    %SRR1: 00003030

    config: 10.4.5 (errs only occured after the upgrade from 10.4.4) on a ppc MINI with 1GB ram

  10. #25


    Member Since
    Mar 30, 2004
    Location
    USA
    Posts
    4,744
    Specs:
    12" Apple PowerBook G4 (1.5GHz)
    Really, really old thread!

    Shouldn't these things lock themselves after, say, six months of inactivity? Hmm? I'll go suggest that....

  11. #26
    piece of apple
    Guest
    dudee!

    what up with you and your Mac! you sound like a Windows user!!

  12. #27
    zahadum
    Guest
    old threads should stay open? | does osx de-activate bad memory?
    Quote Originally Posted by technologist
    Really, really old thread!

    Shouldn't these things lock themselves after, say, six months of inactivity? Hmm? I'll go suggest that....
    i can understand the idea of closing a thread if the user has successfully resolved the inquiry (in this case the user gave up SUM and used target mode for backup instead; the underlying cause of the problem was never fully discussed).

    ... a new wrinkle: now there are no crashes (after 3 days of non-stop panics) ... but MoreInfo :: About This Mac reports that it sees only 512MB of ram noy 1GB (ppc mini has only one ram slot).

    does this mean that osx can 'mark' bad ram the way a low-level formatting util marks bad disk sectors -- is that why the machine is niy crashing? because osx is not addressing half of the memory on one single dimm?

    nice to know cuz 1GB ram is expensive!

    cheers: dlf

  13. #28
    zahadum
    Guest
    how is this a windoze question?
    Quote Originally Posted by piece of apple
    dudee!

    what up with you and your Mac! you sound like a Windows user!!
    pls explain?

    how is the question about an mem err msg produced by apple's hw diagnostic boot disk _not_ a 'good' mac question?

  14. #29


    Member Since
    May 13, 2005
    Posts
    2,410
    this thread is old

  15. #30

    xstep's Avatar
    Member Since
    Jun 25, 2005
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    On the road
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    3,231
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    2011 MBP, i7, 16GB RAM, MBP 2.16Ghz Core Duo, 2GB ram, Dual 867Mhz MDD, 1.75GB ram, ATI 9800 Pro vid
    I didn't realise how old this question was. I would be nice if there was some quick obvious way to tell other than just the date.

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