Spotlight reindexing drives when booting from Leopard to Tiger & vice versa

Hi,
I have two HDs, one with Leopard and the other with Tiger. Whenever I boot into the other HD I find that Spotlight re-indexes my two 750GB music & data drives which takes some time. Why is this? Do they use different versions of the index?
It's a bit of a pain as I have to boot into both OS's every day and cannot use Spotlight while the indexing is running and it also slows the system down. I do not want to turn indexing off as I need it during my work.
Any help/ideas?

dickie001x wrote:
Hi,
I have two HDs, one with Leopard and the other with Tiger. Whenever I boot into the other HD I find that Spotlight re-indexes my two 750GB music & data drives which takes some time. Why is this? Do they use different versions of the index?
yes, they do.
It's a bit of a pain as I have to boot into both OS's every day and cannot use Spotlight while the indexing is running and it also slows the system down. I do not want to turn indexing off as I need it during my work.
Any help/ideas?
I don't think there is any way around this. may I ask why you have to use both tiger and leopard?
you can try using some spotlight alternatives such as [EasyFind|http://www.versiontracker.com/dyn/moreinfo/macosx/11706] when you are using one of the two OS ( either tiger or leopard) and spotlight for the other os.

Similar Messages

  • Ethernet seems to work when booted from Leopard DVD--Not anytime else

    Ok. Here is the deal. iMac G5 connected via ethernet cable to router. It will not connect. The airport works fine. I unplug the same cable and plug into macbook pro--it works just fine. Plug it back into iMac.
    In network utilities when booted from the disk--I can ping away just fine. So--in network preferences when I boot it up again I attempt to put the IP address, subnet, router yada yada yada in manually and after about twenty five seconds of the program chewing on it--it crashes. Over and over again. Airport works just fine. PowerBook and Mac Pro connected to same network---all check out.
    Any thoughts?

    Hi,
    The internet port is meant for modem, and ports 1,2,3,4 are meant for computers.
    After making proper connections reset router for 1 minute, and rebbot it.
    Now run easy connect program for configuring router.

  • DVD drive won't boot from Leopard or Tiger disks

    Hi,
    I have had some issues booting from the OS install disks with my DVD drive, is it the drive or is it the software?
    Can this be fixed?
    Thanks
    Tom

    There are known issues with some Leopard discs not booting, but if your Tiger disc won't boot either, I would say you probably have a defective optical drive.
    -Bmer
    Mac Owners Support Group - Join us @ MacOSG.com
      Mac611 Mobile Mac Support - about.Mac611.com
       iTunes:MacOSG Podcast | YouTube.MacOSG.com
                       An Apple User Group 
    Have an iPhone or iPod touch? Enter Mac611.com in Safari on it for 'mobile Mac support.'

  • Time changes when switching from Windows to Mac, vice versa

    Hi,
    I am using Bootcamp to run Windows XP SP2 on my macbook. When ever I switch from one to the other (mac to windows, vice versa) my time will always be incorrect. I have to restart the computer everytime to switch, but when ever I just reset and load into the same OS as before, my time is fine. Anyone know what is wrong? It's really annoying to have to change the time or think its a certain time and it being wrong.

    Everyone gets that problem. Evidently Windows and Mac use a different reference point for the time, I think one uses Greenwich and the other local. On the Mac side you can go to System Prefs->Date & Time, and see if checking the box to "Set date & time automatically" fixes the problem.
    Francine
    Francine
    Schwieder

  • Problem: installed new hard drive but can´t boot from leopard dvd

    So I just installed a new hard drive in my ibook G4. At first I started up the computer using the leopard DVD I had purchased. Got to Disk Utility and after a few seconds in the spin wheel came up and froze. So, I shut the computer down and when I tried to boot it again from the DVD I wouldn´t even reach the apple screen. Tried it a few times unsuccessfully.
    As an alternative I just tried booting the comptuer using the original CD and it did read it.
    I am currently at the installer page but I am concern about installing the old CD as I really would like to run the leopard dvd 10.5.
    Is it that my ibook g4 can´t be booted from leopard dvd?
    Please advise. thanks!!

    OK, so I decided to leave my computer resting all night and give it a new try this morning.
    This morning I was able to boot from the Leopard DVD, so I don´t really think it is a problem with my superdrive. Started to format at 32 minutes to complete. Then towards the 10th minute the spinning wheel appeared, I heard the fan running, then it stopped and then I heard the superdrive making some reading noises. Then all noises stopped and now the spinning wheel continues..not sure what to do now.
    In the meantime, I wanted to share also another problem that I´ve been having for quite some time which I don´t know if it is related to my current problem. It is with the computer power:
    - I´ve been experiecing load surges that take my computer from 100% to 1 or 0% and then goes to sleep or shuts down. The same thing happens when I am charging the computer.. it starts charging and showing 2 or 3% charge and then jacks up to 100% in minutes.
    - My computer also makes like a slight humming noise sometimes when the ring around the power cable is in orange color, so I move it around until it stops. When I do that sometimes it goes from orange to green eventhough it is not fully charged. There has been times that under green it appears to be charging (battery charging icon on desktop shows up), and other sometimes like right now when it is in green color and the battery icon on the desktop says ´99%´. Weird enough, once I get the cable in a certain position it enables the battery to charge, if I keep it without moving it, the load surges disappear (at least for some days).
    Should I try resetting the PMU? I´ve not done it because I don´t know what consequences it may have.
    NOTE: When I bought the computer I never calibrated my battery because I was (and still are) clueless when comes to computer technicalities. I tried using a different power adapter and get the sample problem.
    Below is the information I get from coconut battery:
    My battery is in its 256 load-cycle. current battery capacity 58512mAh (original battery capacity: 4400 mAh).
    The last system profiler I was able to pull shows:
    Battery Information:
    Charge Information:
    Charge remaining (mAh): 58320
    Charging: No
    Full charge capacity (mAh): 58512
    Health Information:
    Cycle count: 256
    Battery Installed: Yes
    Amperage (mA): 0
    Voltage (mV): 16250
    System Power Settings:
    AC Power:
    System Sleep Timer (Minutes): 15
    Disk Sleep Timer (Minutes): 10
    Display Sleep Timer (Minutes): 15
    Dynamic Power Step: Yes
    Reduce Processor Speed: No
    Automatic Restart On Power Loss: No
    Wake On AC Change: No
    Wake On Clamshell Open: Yes
    Wake On LAN: Yes
    Wake On Modem Ring: Yes
    Display Sleep Uses Dim: Yes
    Battery Power:
    System Sleep Timer (Minutes): 5
    Disk Sleep Timer (Minutes): 10
    Display Sleep Timer (Minutes): 5
    Dynamic Power Step: No
    Reduce Processor Speed: Yes
    Automatic Restart On Power Loss: No
    Wake On AC Change: No
    Wake On Clamshell Open: Yes
    Wake On Modem Ring: No
    Display Sleep Uses Dim: Yes
    Reduce Brightness: Yes
    Hardware Configuration:
    Clamshell Closed: No
    UPS Installed: No
    AC Charger Information:
    AC Charger (Watts): 26
    Connected: Yes
    Charging: No
    Any help is greatly appreciated.
    Thanks a bunch!!!

  • Hi, I have a hard disk failure so to recover my data I am using disk utility to restore the data on an external drive while booting from a second external hard drive. When I perform the operation it gives me an input/output error and stops. Any tips?

    Hi, I have a hard disk failure so to recover my data I am using disk utility to restore the data on an external drive while booting from a second external hard drive. When I perform the operation and after having selected both my destination and source drives, the operation begins but soon fails due to input/output error. If I try to create an image of the drive it gives me the same error message. Any help would be much appreciated.

    Disk Utility only creates a image of the drive, so it's no help getting exactly what you want, which is your files. If the file structure is messed up or the drive is failing then it's no help.
    If you have a external boot drive and you can't access the internal non-booting drive though the typical Finder and windows to transfer your files via drag and drop methods, then you need to install Data Rescue on the external boot drive and it will do as best as it can to recover your files. (works on non-encrypted/non-Filevaulted drives only)
    .Create a data recovery/undelete external boot drive
    Are you sure you have hard drive failure, or that OS X isn't merely not booting?
    Because if the drive is working physically, then there is a host of fixes
    ..Step by Step to fix your Mac
    https://discussions.apple.com/community/notebooks/macbook_pro?view=documents#/

  • Noise when booting from external firewire drive

    When booting from a Maxtor drive with OS10.3.9 to the iMac G5 with Tiger the fan makes a lot of noise. Why?
    When I reboot into Tiger the fan is normal.
    Reasons?
    Thanks

    The fans are controlled by code in the OS you boot from. It sounds like the OS you have on your external Maxtor is older then your iMac G5. As a results it may not have the needed fan control code. When that occurs, the Firmware in the iMac, sets the fans to a high speed to ensure your computer will not overheat.
    Tom N.

  • Logic crashing when booting from system drive clone

    Hi,
    So I've been copying system drive clones to another drive for backup, but I find when booting from the (internal HD) clone, Logic 9 will consistently crash on me when trying to open various brands/types of plug-ins.
    For cloning I've tried SuperDuper, which I own, and Carbon Copy Cloner, which I'm running the 30 day trial of, and had identical results.
    Yeah I know it's lame to be using Logic 9, but I have several important projects originally started on 9 that I need to be finishing up now, and those projects don't play nicely with Logic X.
    I'd like to update my OS and Logic X versions, but want to have a working system clone before risking it.
    Suggestions?
    Thanks.

    Um right after posting the query I remembered what I had learned probably right here back in yesteryear, and that is there is one thing that doesn't translate in the clone.
    When doing Get Info on the Logic 9 app, there is a check box for "Open in 32-bit mode". I need to have that unchecked, so I can run in 64-bit mode, but for the "clone", that box gets automatically checked, it is NOT actually a clone, hence the issue I was having with plug-ins causing crashes.
    Un-checking that box on the clone solved my issue.

  • I'd like to carry my system, applications and files on a portable Thunderbolt ssd drive and boot from it.  I have a Mac Pro in the office, iMac at home

    I'd like to carry my system, applications and files on a portable Thunderbolt ssd drive and boot from it.  I have a Mac Pro in the office, iMac at home, a MacBook Air for when I'm on the road, all with TB.  Can a single external TB drive boot all three hardware configurations successfully?  I've been told that differences in hardware configurations between the systems make this impossible.  Is this correct?

    Piece or peace of cake really though.
    A quick install on new hard drive or SSD or 10K and less than an hour to move everything over properly.
    YOU looked for a quick fix and found none and all the brick walls.
    It is not  days of work to do a clean install and migrate.
    There are few if any apps that need to be freshly installed either though there are updates needed for them to be compliant, any driver or plugin also and that is done ahead of time with research.
    And your backup or clone of your system is taken care of - you leave the old system boot drive 'as is' untouched.
    Also, better strategy to move most all your home folder (except for its own ~/Library) to ANOTHER disk drive and not on t he system drive at all.
    As for applications on its own drive or 3rd party, beeen there done that, even SSD or 15K SCSI - no benefit in performance or organization.

  • No Harddrive when booting from OS 9.2.1 CD on G4 MDD 1.25 Dual

    I also have a G4, 1.25 GHz dual processor running OS X 10.2.8 and 9.2.1 updated to 9.2.2, 1 GB RAM.
    When booting from OS 9.2.1 CD (came with the computer) I do not see any harddrive. Need to reinstall OS 9 for some classic applications.
    Drivesetup can not find any disc to format.
    Any idea?
    PowerBook G3/400   Mac OS X (10.3.9)  

    Hi, kai -
    Welcome to Apple's Discussions.
    An OS 9-bootable G4 MDD model requires OS 9.2.2 as the minimum OS. Apparently some models of G4's which require OS 9.2.2 can in fact boot to some OS 9.2.1 Install CDs, but that is all - they can not run the installer or do much else.
    Your G4 MDD model originally shipped with a combo set of install disks; none shipped originally with a separate OS 9 Install CD (the last G4's to do so were QuickSilver models). You can ise that set of disks to re-install OS 9 (Classic).
    One or more of these Apple KBase articles may help you do that -
    Article #106294 - Mac OS X: How to reinstall Mac OS 9
    Article #107383 - Mac OS X 10.2, 10.3: How to perform Mac OS 9 clean installation with Restore CDs
    Article #42929 - Using Restore Discs with Mac OS X 10.2 or later
    There can also be an issue with what bus a hard drive is on. As I understand it, in order see a hard drive on the ATA/100 bus on a G4 MDD model when booted to an OS 9 Install CD, the System Folder on the CD must contain the file Mac OS ROM in version 9.5.1 or later. No OS 9.2.1 Install CD (or earlier version) contains that file version.

  • How to use Photoshop CS6 when booted from a different partition?

    I have CS6 installed.  I recently created a second partition on my SSD for development in OS X 10.10.  When booted from that drive, I get an error that CS6 was not properly installed and to re-install it.
    This is a smaller partition, with just the system and a few development apps, and I'd prefer to continue to run my larger apps from the original, larger partition. 
    Of course, every app I have tried does this with no issues except CS6.  I usually need to re-enter app serials, but they work.
    What files need to be copied from one partition to the other to let the app boot up?

    They work fine. I first tried with a clone of my main drive doing an update in place on it.
    i guess I will need to boot into 10.9 to use them.
    I will mostly use stand-in apps like Pixelmator.

  • No Print Settings when printing from Leopard to a shared Epson on Tiger

    I don't know if this is related to the printing problems in Aperture before Security Update 2008-002 v1.1 but I am still experiencing a missing "Print Settings" menu when printing from MacOS X 10.5.2 (Intel) to an Epson 4800 shared on a Mac (PowerPC) running Tiger. The printer is connected by FireWire.
    I tried sharing the printer from a Mac running Leopard and the menu shows fine and printing is perfect. When printing from Leopard directly to the printer everything is okay too.
    Should the Mac sharing the printer run the same system as the Macs printing to it? (pretty impossible in any company) or is this a persisting bug.
    Thanks for your help.

    I solved this. At least for me. After spending an hour on the phone with Epson, they said it was Apple's problem. After spending an hour on the phone with Apple, they said it was Epson's problem. Sound familiar? Anyway I searched around the net for answers and I've found something that has worked. I downloaded this program: Gutenprint Uninstaller from this site http://gimp-print.sourceforge.net/MacOSX.php3 and ran it on both computers. That got rid of any old gimp or guten drivers. Then from the same site I downloaded this package of drivers Gutenprint 5.1.7 and installed it on both computers. On the Tiger computer I added my printer (Epson 1400) selecting the gutenprint driver as its driver. Now my Leopard can see the printer settings and I can choose the type of paper, print quality, etc. These are all found in the printer interface window under "printer features". Hope this works for you. I'm happy again.

  • No external disk encryption available when booted from Lion installer

    Problem: When booting my Mac Mini from a Lion Installer USB thumb drive, Neither Disk Utility nor diskutil from the command line seems able to actually encrypt an external drive. They both seem to be able to convert the drives to coreStorage, just not actually encrypt the drives.
    Background: I was able to successfully preform 3 encryptions from the Lion system on my 17inch MacBook Pro before failing as described above:
    1) I encrypted my main HD in my laptop (using System Preferences > Security & Privacy)
    2) I encrypted my Time Machine backup (Using Time Machine system prefs)
    3) I converted an external 2TB USB drive filled with data (I had a freshly mirrored copy of all this data as backup) using diskutil cs convert -passphrase from the command line
    each of the successful encryptions took about 24hours/Terabyte
    Here is where I tried and failed, step by step:
    ### Failure 1
    I created a bootable backup of Mac OS X Lion on a USB thumb drive. I booted my Mac Mini with it and attached a 2TB external USB drive that I wanted to encrypt. It was a blank drive so I launched Disk Utility from the recovery/installer screen and created 1 partion, GUID, Mac OS Extended (Journaled)
    Then I went to the Erase tab and chose Mac OS Extended (Journaled, Encrypted), provided a passphrase and erased. It took just a couple seconds and said it was done.
    I moved the 2TB external to my laptop running Lion, it asked for the passphrase and when provided the drive mounted just fine but when examined with "diskutil coreStorage list" I see a couple problems (besides the fact I don't believe it encrypted a 2TB drive in 15 seconds)
    Conversion Status is NoConversion and it's not listed as revertible - my successful encryptions are listed as "Conversion Status: Complete and Revertible:  Yes (unlock and decryption required)"
        +-> Logical Volume Family 83A8BED0-EA17-433B-B494-B71D9B16142C
            Sequence:               2
            Encryption Status:      Unlocked
            Encryption Type:        AES-XTS
            Encryption Context:     Present
           Conversion Status:      NoConversion
            Has Encrypted Extents:  Yes
            Conversion Direction:   -none-
            |
            +-> Logical Volume FD9868AA-C880-475A-8AFE-98DFCED1A0B4
                Disk:               disk8
                Status:             Online
                Sequence:           2
                Size (Total):       1999903956992 B (2.0 TB)
                Size (Converted):   -none-
                Revertible:         No
                LV Name:            2011-07-24
                Volume Name:        2011-07-24
                Content Hint:       Apple_HFS
    ### Failure 2
    Still booted from thumb drive installer, I attached a 1TB Firewire drive with files on it (it is a mirrored copy of an original drive) and l launched Terminal and attempted to use "diskutil cs convert /Volumes/mydrivec -passphrase" to encrypt the drive without erasing it first. Again it seemed to work, it went thru the corestorage step and when mounted on my laptop running Lion I'm asked for the passphrase and it mounts and the files are all fine but again it finished in seconds instead of the 24 hours I was expecting, and diskutil cs list shows a conversion status of "converting" but no progress is being shown in Size (Converted) or Conversion Direction and Revertible says no decryption required
    > Logical Volume Family A54F382A-54A0-4295-B3A8-1CA0E92341C4
    |       ----------------------------------------------------------
    |       Sequence:               4
    |       Encryption Status:      Unlocked
    |       Encryption Type:        AES-XTS
    |       Encryption Context:     Present
    |       Conversion Status:      Converting
    |       Has Encrypted Extents:  Yes
    |       Conversion Direction:   -none-
    |       |
    |       +-> Logical Volume C6AFB536-3C5F-48D0-A590-BD6883A4D763
    |           ---------------------------------------------------
    |           Disk:               disk7
    |           Status:             Online
    |           Sequence:           4
    |           Size (Total):       999542140928 B (999.5 GB)
    |           Size (Converted):   -none-
    |           Revertible:         Yes (no decryption required)
    Thoughts on why I'm not getting actual encryption when booted from Lion installer thumb drive? I don't want to upgrade the Mini to Lion (yet), I just want to boot it up from Lion installer and use it as an encryption station for a week.

    Problem: When booting my Mac Mini from a Lion Installer USB thumb drive, Neither Disk Utility nor diskutil from the command line seems able to actually encrypt an external drive. They both seem to be able to convert the drives to coreStorage, just not actually encrypt the drives.
    Background: I was able to successfully preform 3 encryptions from the Lion system on my 17inch MacBook Pro before failing as described above:
    1) I encrypted my main HD in my laptop (using System Preferences > Security & Privacy)
    2) I encrypted my Time Machine backup (Using Time Machine system prefs)
    3) I converted an external 2TB USB drive filled with data (I had a freshly mirrored copy of all this data as backup) using diskutil cs convert -passphrase from the command line
    each of the successful encryptions took about 24hours/Terabyte
    Here is where I tried and failed, step by step:
    ### Failure 1
    I created a bootable backup of Mac OS X Lion on a USB thumb drive. I booted my Mac Mini with it and attached a 2TB external USB drive that I wanted to encrypt. It was a blank drive so I launched Disk Utility from the recovery/installer screen and created 1 partion, GUID, Mac OS Extended (Journaled)
    Then I went to the Erase tab and chose Mac OS Extended (Journaled, Encrypted), provided a passphrase and erased. It took just a couple seconds and said it was done.
    I moved the 2TB external to my laptop running Lion, it asked for the passphrase and when provided the drive mounted just fine but when examined with "diskutil coreStorage list" I see a couple problems (besides the fact I don't believe it encrypted a 2TB drive in 15 seconds)
    Conversion Status is NoConversion and it's not listed as revertible - my successful encryptions are listed as "Conversion Status: Complete and Revertible:  Yes (unlock and decryption required)"
        +-> Logical Volume Family 83A8BED0-EA17-433B-B494-B71D9B16142C
            Sequence:               2
            Encryption Status:      Unlocked
            Encryption Type:        AES-XTS
            Encryption Context:     Present
           Conversion Status:      NoConversion
            Has Encrypted Extents:  Yes
            Conversion Direction:   -none-
            |
            +-> Logical Volume FD9868AA-C880-475A-8AFE-98DFCED1A0B4
                Disk:               disk8
                Status:             Online
                Sequence:           2
                Size (Total):       1999903956992 B (2.0 TB)
                Size (Converted):   -none-
                Revertible:         No
                LV Name:            2011-07-24
                Volume Name:        2011-07-24
                Content Hint:       Apple_HFS
    ### Failure 2
    Still booted from thumb drive installer, I attached a 1TB Firewire drive with files on it (it is a mirrored copy of an original drive) and l launched Terminal and attempted to use "diskutil cs convert /Volumes/mydrivec -passphrase" to encrypt the drive without erasing it first. Again it seemed to work, it went thru the corestorage step and when mounted on my laptop running Lion I'm asked for the passphrase and it mounts and the files are all fine but again it finished in seconds instead of the 24 hours I was expecting, and diskutil cs list shows a conversion status of "converting" but no progress is being shown in Size (Converted) or Conversion Direction and Revertible says no decryption required
    > Logical Volume Family A54F382A-54A0-4295-B3A8-1CA0E92341C4
    |       ----------------------------------------------------------
    |       Sequence:               4
    |       Encryption Status:      Unlocked
    |       Encryption Type:        AES-XTS
    |       Encryption Context:     Present
    |       Conversion Status:      Converting
    |       Has Encrypted Extents:  Yes
    |       Conversion Direction:   -none-
    |       |
    |       +-> Logical Volume C6AFB536-3C5F-48D0-A590-BD6883A4D763
    |           ---------------------------------------------------
    |           Disk:               disk7
    |           Status:             Online
    |           Sequence:           4
    |           Size (Total):       999542140928 B (999.5 GB)
    |           Size (Converted):   -none-
    |           Revertible:         Yes (no decryption required)
    Thoughts on why I'm not getting actual encryption when booted from Lion installer thumb drive? I don't want to upgrade the Mini to Lion (yet), I just want to boot it up from Lion installer and use it as an encryption station for a week.

  • X200 with OCZ ssd blue screens when booting from docking station

    The x200 blue screens when booting from the docking station. If I take the laptop out of the docking station to boot and then dock once booted the laptop is fine.
    The issue started happening when you I upgraded the laptop form xp to windows 7 and installed an OCZ vertex 2 solid state drive.
    I have tried updating the firmware on the ssd using this utility
    http://support.lenovo.com/en_US/detail.page?LegacyDocID=MIGR-69806
    The program showed that my ssd was running firmware version 1.29 and did not need to be updated.
    I have also tried updating the x200 to the latest BIOS. Nothing seems to work.
    Any ideas or suggestions are greatly appreciated.
    Solved!
    Go to Solution.

    you need to modify a registry value before going from AHCI to IDE. (or viceversa).
    http://www.ocztechnologyforum.com/forum/showthread.php?69682-Change-from-IDE-to-AHCI-after-Installat... 

  • G5 Grey screen (Kernel Panic) when booting from CD

    I know there are a lot of posts with people experiencing issues with the grey screen during boot. Most resolutions point to hardware but all state, including Apple's walk through, to boot from CD and run a validation on the hard drive.
    My issue is completely different. I get the grey screen of death when booting from a CD/DVD only. I can boot into the OS just fine from the hard drive. But if I try to install another OS, or just boot from the CD/DVD, I get the grey screen.
    What I've done to troubleshoot:
    Reduced RAM to original sticks
    Removed hard drive
    Replaced DVD drive
    Tried multiple versions of OS discs (10.2, 10.3, 10.4 and 10.4 server)
    Reset the PRAM (Both via keyboard and Open Firmware)
    Replaced the video card
    Replaced the logic board
    Replaced the Processor
    Quite litterally the only thing original in this system is the power supply and the memory. However, I only get it when I'm booting from CD so the memory should not be the issue. I've even used a seperate power supply for the DVD drive to see if it was causing an issue.
    Any suggestions? I'm looking at possibly replacing the power supply but I'm afraid it's going to give me the same issue.

    Thats the thing, I've tried 10.2, 10.3, 10.4, and 10.4 server. (CD and DVD) All give me the grey screen. Well 10.2 and 10.3 give me a dark grey square in the middle where the apple should be but then the fans ramp up like it does when you get the grey screen of death.
    I've also used two different drives.
    It reads the disks fine with no issues. If I boot to the hard drive I can use the system like nothing is wrong. But if I want to boot from CD for any reason I cannot.
    If I follow the logic it seems it is something to do with the CD/DVD drive. This is because it works fine when booted to hard drive. If it was the memory or PSU then I'd be getting the problem all of the time and not just when booting from CD/DVD.

Maybe you are looking for