Leopard will run fine.
Mac OS X v10.5 Leopard requires:
- A Mac computer with an Intel, PowerPC G5, or Power PC G4 (867 MHz or faster) processor
- 512 MB memory or more
- A DVD drive for installation
- 9 GB of available disk space or more
Snow Leopard will run fine too, and it will be a lot cheaper:
Snow Leopard System Requirements
- Mac computer with an Intel processor
- 1GB of memory
- 5GB of available disk space
- DVD drive for installation
Lion requires a Core 2 Duo so that's out.
You can upgrade to Snow Leopard if you have only a Core Duo model. If you have a Core 2 Duo model then you can upgrade to Lion. However, for the latter I would add additional RAM. I believe the model you have supports installing up to 4 GBs of RAM, but only 3 GBs will be usable and it's a Core 2 Duo model.
You can purchase Snow Leopard from Apple's Online Store. It must be updated to 10.6.8 in order to purchase and download Lion. Or you can purchase a Lion USB flash drive installer at most local Apple Stores and skip purchasing and upgrading to Snow Leopard.
I wouldn't recommend it. I would suggest backing up your current system, booting from the Snow Leopard installer DVD, erasing the drive and doing a clean install of Snow Leopard. Then restore your files from the backup and reinstall your third-party software.
Same suggestion if you decide to upgrade to Lion.
So would you recommend a direct jump to Snow Leopard? We are running the following applications currently:
Quark 6.52, Acrobat 7, Suitcase fusion, and Toast Titanium.
The reason for this upgrade is to add Creative Suite 5 which requires a minimum of OS X 10.5.
So should I backup all these applications to an external drive, erase the drive and run a clean install then reinstall my applications?
Phew! Is there a you tube vid or info somewhere for me to learn how to do this backup etc as I am a total novice!
You have older software that will need to be upgraded at additional expense besides the Adobe software unless you plan to stop using Quark, Suitcase, and Toast.
You do not have to upgrade to Lion, so you can start with Snow Leopard. The below should help you with the backups and upgrade. I'm sure that if you prefer a You Tube video all you need do is a Google search to find them.
Get an external drive at least equal in size to the internal hard drive and make (and maintain) a bootable clone/backup. You can make a bootable clone using the Restore option of Disk Utility. You can also make and maintain clones with good backup software. My personal recommendations are (order is not significant):
Although you can buy a complete external drive system, you can also put one together if you are so inclined. It's relatively easy and only requires a Phillips head screwdriver (typically.) You can purchase hard drives separately. This gives you an opportunity to shop for the best prices on a hard drive of your choice. Reliable brands include Seagate, Hitachi, Western Digital, Toshiba, and Fujitsu. You can find reviews and benchmarks on many drives at Storage Review.
Enclosures for FireWire and USB are readily available. You can find only FireWire enclosures, only USB enclosures, and enclosures that feature multiple ports. I would stress getting enclosures that use the Oxford chipsets especially for Firewire drives (911, 921, 922, for example.) You can find enclosures at places such as;
All you need do is remove a case cover, mount the hard drive in the enclosure and connect the cables, then re-attach the case cover. Usually the only tool required is a small or medium Phillips screwdriver.
How to Install OS X Updates Successfully
A. Repair the Hard Drive and Permissions:
Boot from your current OS X Installer disc. After the installer loads select your language and click on the Continue button. Then select Disk Utility from the Utilities menu. 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 click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer. Now restart normally.
If DU reports errors it cannot fix, then you will need Disk Warrior (4.0 for Tiger) and/or TechTool Pro (4.5.2 for Tiger) to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
B. Make a Bootable Backup Using Restore Option of Disk Utility:
- Open Disk Utility from the Utilities folder.
- Select the destination volume from the left side list.
- Click on the Restore tab in the DU main window.
- Check the box labeled Erase destination.
- Select the destination volume from the left side list and drag it to the Destination entry field.
- Select the source volume from the left side list and drag it to the Source entry field.
- Double-check you got it right, then click on the Restore button.
Destination means the external backup drive. Source means the internal startup drive.
C. Important: Please read before installing:
- If you have a FireWire hard drive connected, disconnect it before installing the update unless you will boot from this drive and install the update on it. Reconnect it and turn it back on after installation is complete and you've restarted.
- You may experience unexpected results if you have installed third-party system software modifications, or if you have modified the operating system through other means. (This does not apply to normal application software installation.)
- The installation process should not be interrupted. If a power outage or other interruption occurs during installation, use the standalone installer (see below) from Apple Downloads to update. While the installation is in progress do not use the computer.
D. To upgrade:
Purchase the Snow Leopard Retail DVD.
Boot From The OS X Installer Disc:
- Insert OS X Installer Disc into the optical drive.
- Restart the computer.
- Immediately after the chime press and hold down the "C" key.
- Release the key when the spinning gear below the dark gray Apple logo appears.
- Wait for installer to finish loading.
E. If updating:
- Download and install update(s)
- Use Software Update, or
- Download standalone updater(s).