Can´t login with my user account, with other accounts runs slow and then freezes.

Discussion in 'Mac Pro' started by ElViejo, Nov 29, 2011.

  1. ElViejo macrumors newbie

    Joined:
    Nov 22, 2010
    #1
    Hi. I need some help.

    My 2 and a half years old Mac Pro 8 cores with OS X 10.5 was running quite slowly and re-booted randomly, so I decided to reset the PMU by pressing that little grey button on the mainboard.

    For a week or two, everything was fine, but today suddenly I noticed that the machine was slow at startup and just couldn´t login with my user account: after entering my password, a blue screen appeared and I heard the disks working, but then returned to the username/password screen. I tried to use the guest user account and other account with administrator privileges, and they worked for a few minutes, although the machine was slow and finally it froze down. I was able to move the cursor around the screen, but nothing else.

    Are the PMU problem and this issue related or it´s just a coincidence?

    I managed to check the start-up disk with the disk utility , and it said it was OK. I tried to startup in safe mode and it didn´t help. What else can I do? Run the hardware test with the OS disc? Fresh OS reinstall?----> And if I do a fresh reinstall of the OS, am I going to keep everything I have in the other non-system disks which I run in a RAID 0 setup?

    Thanks a lot for your answers.
     
  2. Loa macrumors 65816

    Loa

    Joined:
    May 5, 2003
    Location:
    Québec
    #2
    Hello,

    My feeling is that it's *not* software (OS or your accounts) related. But to be sure, do you have a spare drive you could use to install a fresh copy of the OS and see if the computer works fine then?

    Loa
     
  3. ElViejo thread starter macrumors newbie

    Joined:
    Nov 22, 2010
    #3
    I´ve asked a few IT guys about the issue and all of them agree with you. It seems a hard disk problem, they say.

    I´m gonna buy a new disk to make a fresh installation and see what happens.

    I suppose any modern SATA III will work (and outperform the original disk), right?
     
  4. Loa macrumors 65816

    Loa

    Joined:
    May 5, 2003
    Location:
    Québec
    #4
    Hello,

    Could be hardware too, as in the mac pro itself. So if a fresh install (not a copy) on a new disk doesn't solve your issues, then its the machine itself that has an issue.

    Yes, and not necessarily.

    Loa
     
  5. ElViejo thread starter macrumors newbie

    Joined:
    Nov 22, 2010
    #5
    I´ve checked it and I was using a Seagate Barracuda ST3250.
    3Gb/s, 7200 rpm, Cache 16 Mb, 78 Mb/s max sustained bitrate.

    I´m not very familiarized with the HDD market, so I don´t know if a reasonabily priced new HDD can outperform that. I´ve heard that those eco-friendly "WD Caviar Green" are cheap and look great on paper, but are not very recommendable.
     
  6. Loa macrumors 65816

    Loa

    Joined:
    May 5, 2003
    Location:
    Québec
    #6
    Hello,

    Most current drives will beat that, but I'm sure just much you're going to see real world differences.

    I wouldn't recommend caviar greens as a main or system drive: they're not designed for that. On the other hand I own 8 of them (six 2TB, and two 3TB) and I absolutely love them. But I use them to store data (music, photos, videos...), not my OS.

    For a main/ OS drive, I'd go with a Caviar Black, which are among the fastest "regular" drives. Of course, if you want more power, you have two main options: RAID0 with mechanical drives, or a SSD. SSDs are in a wholly different budget class, but they're also in a wholly different level of performance.

    Loa

    P.S. No, I do not have 18TB of data! All six of the 2TB ones are for back-ups! :-D
     
  7. ElViejo thread starter macrumors newbie

    Joined:
    Nov 22, 2010
    #7
    Just for the record: after a new disc and a fresh install, the machine is running again. I don´t know if it´s for the new installation or because the old disc was messed up, but it´s working.

    Thanks Loa for the help.

    I´ll try to fix the old drive it if it´s possible, but I don´t know what diagnose software could be useful for this.
     
  8. jonnymo5 macrumors 6502

    Joined:
    Jan 21, 2008
    Location:
    Texas
    #8
    I saw the same behavior when my main HDD was dying. Thats where I would put my money.

    As someone said before, green drives don't make good system drives since they are optimized for energy efficiency and they sacrifice speed to do that.
     

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