iMac random freeze issue, solved!

[Neuro]

I've had ongoing problems with my iMac freezing, especially during iTunes playback, but otherwise random. No console errors or crash report to go on.

I tried a fresh install several times, but the problem was still there. Also tried disk repair etc.

I happened to try a defrag tool and it completely screwed my filesystem. As a result I had to do a proper format (zero the disk) before reinstalling.

The freezing has now stopped!

So if you're getting random freezes for no apparent reason, try zeroing the disk before reinstalling.

It's very odd. Perhaps some disks weren't formatted properly before shipping in new Macs?

The iMac is a Core 2 Duo 3.06 24-Inch (Early 2008)

 

[Grannyville7989]

I always think it's best to do a zero out install whenever installing or reinstalling Windows or Mac OS.

I'm pleased that you managed to solve your problem.

 

[Neuro]

Thanks, I always used to do a full hardware format back in my PC days. But I was led to believe that it wasn't necessary anymore.

Apparently it is!

The time I have wasted on this.... argh.

 

[Michaelgtrusa]

I've had ongoing problems with my iMac freezing, especially during iTunes playback, but otherwise random. No console errors or crash report to go on.

I tried a fresh install several times, but the problem was still there. Also tried disk repair etc.

I happened to try a defrag tool and it completely screwed my filesystem. As a result I had to do a proper format (zero the disk) before reinstalling.

The freezing has now stopped!

So if you're getting random freezes for no apparent reason, try zeroing the disk before reinstalling.

It's very odd. Perhaps some disks weren't formatted properly before shipping in new Macs?

The iMac is a Core 2 Duo 3.06 24-Inch (Early 2008)

What defrag tool did you use? mac are to never need to be defraged?