I recently had my imac, when restarting from shut down-the tone came on and beeped twice and then flash twice again. The Memory was the problem.
This and other things will afflict you at one time or the other. So, I'm posting how to do some preventative procedures to be ready.
Going from the last post; here is more on what to do if your Mac dies. Most of the problems you will have is with software. This podcast from Typical Mac user will go into much more detail on what to do if your Mac starts acting up.
Number one is BACKUP! I like Superduper for ease of use. And or Time machine. Do this before you need to read the rest.
Victor and Steve will walk you thru it. From running hardware tests to checking compatibility issues, lets be prepared.
My Mac died-now what?
Basic Troubleshooting (quick list) From Steve Stanger on the Macattack.us
- Shut your Mac down, wait 10 to 15 seconds and restart.
- Try a safe boot - hold down the shift key after hearing the start up chime.
- Try disconnecting all peripherals connected to your computer. Boot with just your monitor, keyboard and mouse attached.
- Create a new user account, and see if the problem persists there.
- A keyboard or mouse gone bad can make it appear that your Mac is frozen.
- If an application stops responding you should force quit it.
- Relaunch the finder.
- Check free space on the system volume.
- Repair disk with Disk Utility.
- Use Cocktail, Onyx, or MainMenu to to repair disk permissions, run maintenance scripts, clean the user and system caches.
- Download and reinstall current Combo update.
- Is your computer acting up after a RAM upgrade?
- Get yourself a commercial drive tool - DiskWarrior, TechTool Pro, Drive Genius.
- If all else fails reinstall the system from scratch or do an 'archive and install'.
Also of note: I was listening to a podcast and heard that if you take your Mac into Apple, they just might keep your old hard-drive, so ask and make sure you get it back. You don't want your personal info falling into the wrong hands.
Lots of good info here, on trouble shooting.
The X Lab
And of course Apple's discussion boards under support tab. Jon L