Hello All!! I purchased an iMac from ebay 2 weeks, a G5 PPC 1.8 ghz, 2 GB RAM, & a 160 GB Hard Drive with 10.4.11. You should also know this is my first Apple product of any kind.
Here is my problem. I had been installing a few third party apps such as Open Office and a Graphics Program and such. Well after about a week it started to act funny and started locking up and the fan would kick into high gear. So I figured I would just blow off the OS and reload 10.4.
So the install went great, no problems at all. I installed all of the updates, checking several times until there were no more and again, no problems. I then started to look around and was going to install Open Office again and thats when the freezing started happening again just opening up Finder as an example.
A few google searches later I figured out how to replace the RAM... same problem. I then thought OK... the hard drive is bad. So I replaced that... Installed the OS, but this time I only installed the first set of patches to get it to 10.4.11 and again the system is freezing and the fan kicks into high gear.
I have examined the motherboard and did not see any issues. I have blown out all the fans and made sure everything looked good.
I really don't understand what could be causing this. The Memory was replaced, the hard drive was replaced. I would think if the Motherboard or Processor was bad it would fail during the OS install or during the Patching, but it run fine during those tasks. If I let it sit and don't touch it, it doesn't lockup (how do I know you ask... becasue I can come back 30 mins later and wiggle the mouse and it wakes up and the screen comes back on) but as soon as I start using it... WHAM!
Can anyone shed any light on this??