Early-2008 Mac Pro startup - sometimes it does, sometimes it don't.

I have an early-2008 Mac Pro running Mavericks. Having issues with start up - powering up is intermittent - sometimes it does, sometimes it don't. I have had some success by unplugging it overnight, and it boots up once plugged back in the AM. I have been able to restart and zap the PRAM; I have also changed the battery. Thoughts?

You could have a problem with file corruption or your hard drive is going south. I would try moving your system to another hard drive then set that drive as the startup. See if the problem is resolved.
You can also try reinstalling Mavericks:
Reinstall Mavericks without erasing drive
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list.  In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive.  If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported then click on the Repair Permissions button. When the process is completed, then quit DU and return to the main menu.
Reinstall Mavericks
OS X Mavericks- Reinstall OS X
     Note: You will need an active Internet connection. I suggest using Ethernet
                 if possible because it is three times faster than wireless.

Similar Messages

  • Early 2008 Mac Pro Startup Problems.

    Hi all,
    I have an  Early 2008 Mac Pro - 2x 2.8ghz Intel Xeon Quad Core processors, 12 gigs of Ram, 1x Nvidia 8800GT graphics card and I am running Windows Vista 64bit through bootcamp. I am running Snow Leopard. I have one monitor it is a Samsung 226bw - 22inch and it is connected via dvi and vga on the monitor side.
    I have recently had my computer updated to the latest 10.65 (something like that).
    Anyway my current problem is that:
    a)The computer does not load up any operating systems and it is just a blank screen.
    b) Sometimes all you hear is the Apple loading Chime "doong" constantly, and a blank screen.
    c) Sometimes I can get to the windows selection screen for safe mode. I pick safe mode but it just goes to a blank screen. Also the monitor does not pick any signals up as it goes no source etc.
    What I have tried:
    a) I have changed the monitor cables 3 different ones.
    b) I have taken all the other hard drives out.
    c) I cannot get into Mac OSX or Windows Vista ( however Vista is the default OS right now)
    d) I can connect my main hdd and copy all my windows stuff, but I cannot see any of the apple osx.
    My suspicions are it is graphics card,or hard drive related.
    I have ordered a new graphics card a ATI Radeon 5770 ( wont come for 6days) and I have a new hard drive a WD Black Caviar 1tb.
    My Questions:
    a) I would like to know what your ideas are on my current situation and Mac Pro symptons.
    b) Is there a way I could format the WD Black Caviar HDD to a Mac Extended one in Windows on my laptop connected via sata?
    c) If "b" is possible could I then use my Mac Pro/Mac OSX or snow leopard discs to create a OSX for my Mac Pro?
    d) Or should I just wait for my graphics card to come and see if is just the Nvidia 8800gt failing?
    e) If it is not the graphics card then do you believe it is the hard drive? or could it be something else?
    Any assistance would be kindly appreciated.
    KInd Regards
    Bobby

    Vista on its own hard drive? Windows doesn't like to move the drive bay.
    you could boot from Vista DVD (I'd upgrade to Windows 7 SP1 when possible)
    clone backups - for both
    emergency boot drive / OS X DVD - you can, and should, always have more than one Mac OS boot volume handy.  So yes use 10.6 DVD
    Preventative and disk maintenance (Disk Warrior etc)
    You would need something like MacDrive8 or Paragon HFS8 to really have good access to HFS from Vista assuming the volume is safe to mount and access.

  • Early 2008 Mac Pro - ATI 4870 - Apple 30'' Monitor - SL .... Does it work?

    I have an early 2008 Mac Pro with a ATI 2600XT on an Apple 30" Cinema Display. I want to upgrade the video card to take advantage of the new features of Snow Leopard.
    Before I take the plunge on buying the ATI 4870 I want to make sure there are no issues with this configuration... Does anyone have an experience with this setup? any issues? ( I assume I will not need to load the drivers since SL should have them)
    Also how is the noise level of the ATI 4870? is the GTX card better in this regards?
    Thanks in advance,

    Other than benchtests and synthetic, there are no OpenCL aware or optimized apps out there. So it is a non-starter I think.
    There are performance tests and depends on what you prefer and type of work. Some places the GTX is better and more RAM might help. The $100 is the other factor.
    The ATI X1900 and 2600 and 3870 didn't look that good to my eye and I use the 8800GT, shame it was dropped, it was a nice card (just needed better $189 price, but that is true of the X1900 ($89?) and others. I think $349 is way too much for 4870 512MB. Flash PC.
    Barefeats has OpenCL TEST in Snow L.

  • I have an early 2008 Mac Pro, 8 gb ram with a Dell 27" display and a 42" LG TV. I am thinking about upgrading the stock ATI Radeon 2600 graphics card for better resolution, preferring 2 dvi outputs. Does anyone have any suggestions on the best card?

    I have an early 2008 Mac Pro, 8 gb ram with a Dell 27” display and a 42” LG TV. I am thinking about upgrading the stock ATI Radeon 2600 graphics card for better resolution, preferring 2 dvi outputs or 1 dvi and 1 vga vs 1 dvi and a mini. I don't do a lot of Final Cut Pro, gaming, etc. I am interested in best value for the graphics card.
    Does anyone have any suggestions on the best graphics card for these larger displays for the best value?
    Thanks,
    Kevin

    I recommend you install nothing older than the Apple-firware 5770, about US$250.
    RE: Mac Pro Replacement Graphics cards
    1) Apple brand cards,
    2) "sold in the Apple store" cards, and
    3) "Mac Edition" cards ...
    ... show all the screens, including Boot up screens, Safe Mode, Installer, Recovery, debug screens, and Alt/Option boot screens. At this writing, these choices include:
    1) Apple brand cards:
    • Apple-firmware 5770, about US$250** works near full speed in every model Mac Pro, Drivers in 10.6.5
    • Apple-firmware 5870, about US$450
    2) "sold in the Apple store" cards
    • NVIDIA Quadro 4000, about US$1200
    • NVIDIA Quadro 5000, about US$2500
    3) "Mac Edition" cards -- REQUIRE 10.8.3 or later:
    • SAPPHIRE HD 7950 3GB GDDR5 MAC Edition, about US$480** Vendor recommends Mac Pro 4,1
    • EVGA GTX 680 Mac Edition, about US$600
    The cards above require no more than the provided two 6-pin aux power connectors provided in the Mac Pro through 2012 model. Aux cables may not be provided for third-party cards, but are readily available.
    If you are Meet ALL of these:
    • running 10.8.3 or later AND
    • don't care about "no boot screens" etc AND
    • can re-wire or otherwise "work out" the power cabling, THEN:
    You can use many more cards, even most "PC-only cards"

  • I have an early 2008 Mac Pro, which has re-booting problems. Also what does the spinning beach-ball indicate?

    Hi, I have an early 2008 Mac Pro which has re-booting problems.
    Processor speed is: 2.8
    Memory: 2GB 800 MHz DDR2 FB-DIMM
    2 x 28GHz Quad Core Intel Xeon
    I am running OSX Yosemite Version 10.10
    My Mac Pro keeps re-booting. Last year I had to replace my graphics card. My original card was the ATI Radeon HD 2600 XT 255MB, and that is what I have now. At this precise moment my Mac Pro is running perfectly, except that it is slow and the spinning beach-ball keeps appearing. I have managed to do some work with the disk utilities, verifying, cleaning and partitioning. Some errors were found and when it was cleaned this seemed to help my Mac Pro to function properly. Although I am able to use my Mac Pro now, from day to day I still experience re-boot problems. Also quite unexpectedly my mac dictionary has an error, it closed itself down and will not open at all, I had the message to say that a report will be sent to Apple.
    I have tried starting my computer with an external hard drive fitted via a USB cable, I use for back-ups. This worked and I was able to wipe my hard drive clear and replace all info from the back up I had done only a few days ago.
    This worked for a few days and then the same problem started again.
    I am beginning to wonder if I need to buy a new hard drive.
    If there is anyone who has some answers to help me solve my problem, I would be most grateful.
    Robert

    When you have the beachball activity, note the exact time: hour, minute, second.  
    These instructions must be carried out as an administrator. If you have only one user account, you are the administrator.
    Launch the Console application in any of the following ways:
    ☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
    ☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
    ☞ Open LaunchPad and start typing the name.
    The title of the Console window should be All Messages. If it isn't, select
              SYSTEM LOG QUERIES ▹ All Messages
    from the log list on the left. If you don't see that list, select
              View ▹ Show Log List
    from the menu bar at the top of the screen.
    Each message in the log begins with the date and time when it was entered. Scroll back to the time you noted above.
    Select the messages entered from then until the end of the episode, or until they start to repeat, whichever comes first.
    Copy the messages to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
    The log contains a vast amount of information, almost all of it useless for solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.
    Please don't indiscriminately dump thousands of lines from the log into this discussion.
    Please don't post screenshots of log messages—post the text.
    Some private information, such as your name, may appear in the log. Anonymize before posting.

  • Early 2008 Mac Pro + nVidia 8800: Never going to work?

    This forum is littered with threads about early 2008 Mac Pros with the nVidia 8800 card - none of them positive.
    I was unfortunate enough to wait for Apple to release such a machine and buy it. Graphics performance is dire given the hardware available. The machine routinely crashes with the window manager hang problem (the user interface just locks up, yet network services etc. still work), in the way familiar to anyone blighted by this particular bug; just run the [email protected] client on your machine if you want to experience the joy. Or screensavers, sometimes, so I've had to turn those off. And I've had to turn off monitor power saving too, because I too suffer from the 'monitors sometimes don't wake up' bug. And of course I can't sleep the machine either, because firmware upgrade or not, it's still not reliable. And after all this, still the machine crashes.
    SSH to the machine; try to restart cleanly; even 'sudo reboot' won't restart it. Apple have achieved something I've never seen out of any Unix or Unix-like operating system, ever; the kernel is unable to kill its own processes.
    There have been no indications from Apple that I've seen on these forums over several weeks that the problem is even being acknowledged, let alone tackled. Latest reports indicate that even the 1st gen Mac Pro owners are suffering if they install the 8800.
    http://discussions.apple.com/thread.jspa?threadID=1460752&tstart=0
    My machine rarely makes it through the day without a forced reboot due to the window manager hanging. I can't do any work on it. I can't rely on it. I can't enjoy it. I can't even use it for web browsing without fear of it hanging.
    There seem to be no facts about this at all. So all I can ask for is opinions. Does anyone have any offering of hope that early 2008 Mac Pros might ever work properly with 8800 cards? Y'know, little things, like actually being able to handle graphics? Or sleeping the monitors? Or, heaven forbid, sleeping the whole machine? Or should I just send it back as unfit for purpose?
    Yours, tired and exasperated... :-/

    I posted this in some other blog (forum), I should have posted this here also but I hope this gives you and all with these problems hope!! I also ran some fish tank test some else posted to get the folding problem to happen and I can not get it to happen at all now, and since my 8800 went in I get NO LOCKUPS, SCREEN FREEZES, shaky blurry video when I boot, so far NOTHING, IT JUST WORKS!!!!!!!!
    Now that I think about it the person who said to use the fish tank program had a bad 8800 and maybe you do also!! here is the link to that:
    http://discussions.apple.com/thread.jspa?messageID=6965475&#6965475
    I purchased my first mac pro early 08 2 months ago (amazon.com).
    2 quad core 2.8's, 2 gig apple 4 gig OWC total 6 gig ram,2-WD raptors (1st mac 2nd boot camp winxp 32 bit), apple care.
    I had all my problems with the ATI card (I always purchased ATI, never Nvidia, for all the PC's I built) a couple of times I bought the first ones out, these had all kinds of problems until good drivers that actually worked were released (usually 6-12 months after the release of the card).
    So I try not to buy routers, graphic cards, etc.. for at least 6-12 months, but back to my 2600 card!!
    When I received my mac the graphics would freeze, I did a lot of online reading only to find out the ATI 2600 was the problem, the cure was to hook up 2 monitors to the card (and that worked!!).
    Then they came out with the firmware update, now my main monitor would after 2 days on a reboot be scambled (samsung syncmaster 213t, NEVER had ANY problem with it before on any PC I had, so I knew it was not the monitor) to fix the problem I had to either turn power off to the syncmaster or resetting PRAM (worked for a couple more days, then the same problem).
    I called apple and they sent a tech out within days to replace the ATI card, the replacement did the same thing after a couple of days, so I called Apple back and they took a bunch of info from my computer (BTW not much at all loaded in the mac side) and said to call back in a week, so I called back a week later and they said they were going to exchange the card for either another ati 2600 or the Nvidia 8800, I said 8800 and a day later on a saturday I received it, swapped the card and NEVER HAD ANY PROBLEMS at all!!
    So I don't know if the ATI card has problems with certain monitors or they are just poorly made (maybe AMD is mad with Apple that Apple did not use AMD processors).
    I have read others that swapped with the 8800 and their problems went away also!!!!
    Maybe some have no problems with the 2600, but I would not recommend it to anyone, if you can avoid the 2600 GO WITH THE 8800, the drivers will get better (and the 8800 will eventually outperform the ATI)and you will not be sorry.
    Apple is awesome, they are 2nd to none, their is no other company like this anymore that I have dealt with in a long time (not just because they gave me a 8800), like I said in the beginning of this post I always purchased ATI cards and would have kept it if it would have worked but 2 doing the same, ATI [AMD] has lost my support until they prove otherwise.
    I recommend Mac's to everyone now!!
    good luck and let me know it any of this has helped!!!!!!!!!!

  • Early 2008 Mac Pro 3,1 Mystery Logic Board/GPU Issue

    I recently received an Early 2008 Mac Pro 3,1 for free because the owner couldn't figure out what was wrong with it. It would boot up with the startup chime, but never output any video, and kept rebooting and replaying the startup chime.  Using the diagnostic LEDs on the logic board, I was able to see that the Power Good LED (LED 7) and the EFI LED (LED 9) were both on, but the GPU LED (LED 8) never lit up.  After trying all the PCI slots and confirming that the graphics card worked in another Mac Pro, I confirmed it wasn't the graphics card.  I then tried a different power supply and different power supply cables, different RAM, different RAM boards, but still nothing.  (Note: I also went through all the usual stuff: Power Cycling, PRAM, SMC Reset)
    I then ordered a replacement logic board (used from eBay) and spent the weekend swapping out the logic board.  After the swap, the Mac Pro STILL won't output video, and now the EFI LED (LED 9) won't even light up.  Tried resetting the EFI Firmware via a CD, and still nothing.  Does anyone have any idea as to what the issue could be?  I'm 95% certain I plugged everything back in correctly on the board, but I don't know what else to do other than tear it apart again to confirm everything is plugged in.  The only other thing I can think of is that the second logic board I received was also bad.
    Please help!!!

    Your problem sounds like a graphics card problem to me.
    confirming that the graphics card worked in another Mac Pro,
    Was this also a Mac Pro 2008 model? was it running the same Mac OS X version as you are testing? what version?
    what graphics card are you trying to use? Genuine Apple or flashed PC or unflashed PC? what Mac OS X version?
    That second board sounds Bad to me if it won't say EFI-OK.

  • Hi everyone,I am new to this so please forgive me any mistakes I may make.Early 2008 Mac Pro desktop installed ML ok but next day nothing, reinstall ok restart same problem ML installer remains on my  snow leopard disk. Any help appreciated.Kind regards

    There I go first mistake straight off. I was wondering how to fit my big long problem in. My fault I am sure but if anyone can help please.
    Early 2008 Mac Pro Desk Top, 2 hard drives 1)snow leopard, 2)lion.
    I have downloaded Mountain Lion usuing disk 1,selected no.2 as my destination, installed ok everything fine, set my startup as no.2 in preferences, switch off. Next day start up - nothing, my only way to get moving was physcally remove disk 2, and let snow leopard restart.
    Reinstalled, everything fine, then same problem on restart next day, remove disk,and so on.
    The mountain Lion installer remains in the snow leopard dock.
    I know the problem is me, so if anyone is kind enough to be able to offer a solution it needs to be in easy speak (press button a, press button b) because I am not that savvy.
    my best regards to all, and thank you.

    Where did you get Mountain Lion? Did you download the 4+ GB file from the App Store? If so, then I would try doing the following:
    Drive Partition and Format
    1. Open Disk Utility in your Utilities folder.
    2. After DU loads select your second drive on which Lion is installed (this is the entry with the mfgr.'s ID and size) from the left side list. Note the SMART status of the drive in DU's status area.  If it does not say "Verified" then the drive is failing or has failed and will need replacing.  SMART info will not be reported  on external drives. Otherwise, click on the Partition tab in the DU main window.
    3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed.
    Install Mountain Lion
    Double-click on the Mountain Lion Installer application in your Applications folder. Follow instructions to install Mountain Lion on your old Lion drive - Drive 2. When the installer finally finishes it will restart the computer automatically from Drive 2. At this point there is no need to change the Startup Disk unless you want to boot from your Snow Leopard drive.
    You will startup to the Setup Assistant in which you will configure your own admin account. You can, if you want, omit that part and instead choose to migrate your Home folder and other data from the Snow Leopard drive. I would recommend you do that unless you wish to do it manually at a later time. In this case create your new admin account using the exact same username and password that you now use on your Snow Leopard system.

  • External desktop drives for early 2008 Mac Pro: USB 2.0 or 3.0 question

    I have an early 2008 Mac Pro 3,1 (OS 10.6.8).
    I currently have a 1 TB Fantom Drive with USB 2.0 that I use for the Time Machine. I want to get the second external drive to use as a boot drive so I can install & boot from Mountain Lion to use Maya 2014 3D application software that requires the Mountain Lion OS. For all other applications, I want to stick with Snow Leopard (10.6.8), which works well for me.
    Most of the searches I've done for external drives have USB 3.0. Some have USB 3.0/2.0.
    Questions:
    1. Will one of the USB 3.0-only external drives work with my early 2008 Mac Pro 3,1, which is only equipped for USB 2.0? If so, would I need some sort of adapter? (I realize that the speed would still be USB 2.0 speed.)
    2. Or do I need to get the USB 3.0/2.0 external drive (which is more expensive)? I am assuming this would not require any adapter.
    3. Will I be able to boot from the external drive with Mountain Lion?
    Thanks for any help with this.
    S

    First, many thanks to both Grant Bennet-Alder and The hatter for their fast responses to my questions. I really appreciate this information. Based on your suggestions I did some research in order to better understand the proposed solutions.
    Grant Bennet-Alder wrote:
    You can add a PCIe card to get these interfaces:
    eSATA
    USB-3
    1. Does one need to get a separate PCIe card for each interface, or is there one PCIe card for multiple interfaces?
    The hatter wrote:
    Installing or cloning OS X should be done on SATA II drive bay or external and then moved to the PCIe - depends what card you buy, and some issues are with arrays (no need for system on one).
    2. I went to http://www.everymac.com/systems/apple/mac_pro/faq/, which says, "By default, a single 3 Gb/s Serial ATA -- sometimes referred to as SATA 2.0 or SATA II -- hard drive is installed in the first of four bays for all models." I interpret that to mean that SATA II is a in the first bay located on my internal hard drive. Can I create a partition here and install Mountain Lion as a separate system, and then move it to a PCIe SSD?
    3. Or, can I install it on my external Falcon Drive (which has a Partition Map Scheme : GUID Partition Table, and which, I believe means it is not a bootable drive). Following that installation could I then move it to the PCIe SSD and boot Mountain Lion from there?
    4. Or, if partitioning is an option, can I just clone it to the Falcon Drive for backup?
    My apologies for my ignorance. This is not my forte. Thanks for any help you can give.

  • Early 2008 Mac Pro frequently shut downs during start up, Help!

    Hello all,
    My early 2008 Mac Pro has gradually started having the following problems:
    It will often shut down when it goes to sleep.
    It has shut down randomly a few times.
    And just today it shut down about 5-10 seconds after being turned on. It took about 6 tries before I could get it to turn on.
    I have tried all of theusual software remedies (disk utility, different startup drives, resetting the SMC, PRAM, etc.)
    I have run apple hardware test on loop for several hours with no errors appearing...
    The computer also often loads up to a circle with with a slash through the middle sign, though I am not sure if this is related (it started happening when it switched my system over to a SSD).
    I am wondering if this is simply a slowly sying PSU and if replacing it might help? If there any way of monitoring this perhaps? I somehow thought that if it was the PSU then it would simply die completely rather than fade like this...
    Any ideas much appreciated!

    There are multiple threads and reports of issues with Icy Dock - there is one on Amazon that lines up properly.
    The drive sled length of 2009-2012 Mac Pro are longer. Maybe OWC needs to be clearer.
    You'e right half-way and maybe some corrupt plist or interferring process you have, or even another hardware item or cable - external - even printer drivers or something that refuses or does not like sleep. Controller card?
    All around I'd have to vote for Samsung 830 model. Then Intel 520. Crucial is out with x4 now (Or is it "V"?)
    SSD firmware continues to be trouble. Even May-June the SandForce firmware had major issue and reason to hold off any using theirs. Reason to see if yours needed to be updated. Someone last week with m4 found they had old firmware and needed to update it.

  • Early 2008 Mac Pro Won't Boot

    I have an early 2008 mac pro that will not boot. Power turns on, power LED turns solid, but no display ever comes up and it never chimes. I have tried swapping out RAM, hard drives, disconnecting all peripherals... any other suggestions? Dead logic board?
    ... and yes, I was too dumb to buy the AppleCare. Stupidest move I have ever made...

    Hi I think I have a similar problem.
    My Mac Pro 8 core doesn't start up. When I turn it on here's what it does: the boot up sound > the grey/white screen with the apple logo and the little turning gear thing > then it freezes.
    Sometimes after that the screen either goes blue with nothing but a mouse pointer that's moveable. but no login window. I can access the hardrive by network and weird enough it's booting on safe mode. I tried setting the SMC firmware but it didn't work. I took it to an apple store and when they plugged it into their displays it worked. When I brought it back, I plugged it into my Cinema Display 30" and the same problem started again. I reset the SMC firmware again and tried different displays I have at home but had the same problem. I plugged the 30" display into a Macbook Pro and it worked fine so I know that the display is not the problem. I've heard the the Nvidia 7300GT has caused problems but why would it work in the apple store? Any help out there?

  • Early 2008 mac pro won't boot from hdd when ssd is installed

    I have Mountain Lion 10.8.3 installed on my 1TB HDD in my early 2008 mac pro.  That is the only OS install on my mac.  I have an OWC SSD formatted but left as an empty drive that I am trying to use but when it's installed my mac hangs on the blank gray screen.
    My mac cold boots fine and runs fine when the SSD is *not* installed.  When I shut down and put the SSD into a drive bay the mac does seem to boot ok the first time, but when the computer is off for a while it will not boot.  It just hangs on the blank gray screen (no apple logo).    As soon as I pull out the SSD, the computer boots fine and runs fine again.  I am not trying to boot off the SSD, I am booting off the HDD.  The correct drive (1tb hdd) is selected in startup disk.
    OWC has been helping me and I have tested 3 SSD's.  So it does not appear to be a problem with their drive.
    The mac will boot into safe mode with the SSD installed.  It will boot if I choose the boot drive with the option key at startup.
    Mountain Lion was clean installed.
    Could it be some sort of library pref or cache issue?
    Any recommendations on what to try?

    A HT does not find a lot of errors.
    It doesn't look for bad sectors or directory or file problems.
    Clone your SSD now that you have a clean OS and has the Apple updates on it. Before you make changes.
    Install TRIM Enabler 2.2+ on it and any boot volume, to enable TRIM and so that Disk Utility's Repair Disk will trim cells. Mountain Lion Recovery won't  which is a shame, so...
    Clone and keep bootable backup clone of your system to use for maintenance.
    A really bad directory on a system drive will cause interference from booting.
    SSDs really need extra care, and even with TRIM, to be repaired from time to time and couple times a year, to do an erase and restore from a current image.
    Of course Mac OS system even iwth apps is small and doesn't need to have any data or media and fits on 120GB usually just fine and still have a good enough amount free so TRIM and Garbage Collection can work properly and not get low on free pages. But 20GB free should be the minimum free, and better to have more, at least whatever total amount is written out in a month.

  • Why are there so many problems with the early 2008 Mac Pro ???

    Hi everybody out there using Mac Pro's early 2008,
    I found out there is a lot of problems with the early 2008 Mac Pro.
    My early 2008 Mac Pro has been repaired ones under warranty and now it stopped working again ! Also see under: Mac Pro early 2008 no chime and does not start up. Why is this ????
    It worked well for about 2 years and then it just fails and i had this failing issue twice already !!! Is this just a BAD Apple product or how do you think I need to approach this. Let’s face it, these machine don’t come cheap and you at least expect them to work without problems for 4-5 years. What is happening here ???
    Cheers, Kavango

    go to a black screen after 15 minutes or a couple hours
    That is probably an indication that you need to find a new graphics card.
    RE: Mac Pro Replacement Graphics cards
    1) Apple brand cards,
    2) "sold in the Apple store" cards, and
    3) "Mac Edition" cards ...
    ... show all the screens, including Boot up screens, Safe Mode, Installer, Recovery, debug screens, and Alt/Option boot screens. At this writing, these choices include:
    1) Apple brand cards:
    • Apple-firmware 5770, about US$250** works near full speed in every model Mac Pro, Drivers in 10.6.5
    • Apple-firmware 5870, about US$450
    2) "sold in the Apple store" cards
    • NVIDIA Quadro 4000, about US$1200
    • NVIDIA Quadro 5000, about US$2500
    3) "Mac Edition" cards -- REQUIRE 10.8.3 or later:
    • SAPPHIRE HD 7950 3GB GDDR5 MAC Edition, about US$480** Vendor recommends Mac Pro 4,1
    • EVGA GTX 680 Mac Edition, about US$600
    The cards above require no more than the provided two 6-pin aux power connectors provided in the Mac Pro through 2012 model. Aux cables may not be provided for third-party cards, but are readily available.
    If you are Meet ALL of these:
    • running 10.8.3 or later AND
    • don't care about "no boot screens" etc AND
    • can re-wire or otherwise "work out" the power cabling, THEN:
    You can use many more cards, even most "PC-only cards"

  • Early 2008 Mac Pro + ATI Radeon HD 4870 = Not working

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  • Where and what type of solid state drive should I buy for my early 2008 Mac Pro Desktop??

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    Rick,
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    dslreports.com is offline
    Fri Apr 20 09:05:55 EDT 2012
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