I've got a 450 cube with 832Meg RAM and GeForce 3 64Meg DDR. Hard Drive is Seagate Baracuda 80 gigs
In the last few weeks i've been having a lot of problems booting up. Sometimes when it works, my screen will become pixelated and then I have to shut off hard. More recently, it won't even boot...even when cold.
However, it boots perfectly with CD's and is stable. I've tried running disk check but returns "everything OK". When I ran Apple toolkit, it said I had all sorts of 'catalog', "extents", etc... errors but could not repair. I did a clean erase of the disk and installed a fresh copy of Panther. Worked great for several days but is now showing similar symptoms.
This HD runs very quiet and no unusual noise. Heat does not seem to be a problem. What is the best way to diagnose the real problem...software...tools...?