Actually, my Leopard problem was not poor performance; the machine decided not to boot at ALL. After about five days, I started up one morning and got to the blue screen that should appear just before the desktop; but that's as far as it would go. I was able to see the volume via FireWire target mode, so I backed up all my documents and did the clean (Tiger) install. Drastic, but I had it in mind that this might fix my freezing issues as well - which, so far, it has.
Your problem sounds very different, and Dave is right, the system should not be sluggish, especially with 4GB of RAM. When Leopard was WORKING, everything was very responsive for me. If you haven't already reinstalled, you might try running the Activity Monitor to see if something is hogging RAM or CPU cycles. There may be something running in the background that you're not even aware of.
It's been almost a week now that I've been running smcFanControl and not a single crash. I would highly recommend this route to everyone. Having your iMac constantly overheat and crash on you could have long lasting effects on the hardware.
Quote:
Originally Posted by bucci
I've been having a lot of crashes recently as well. I thought it may be heat related so I got a temperature widget. Turns out my video card was getting up to 67C (152.6F) and the CPU was 55C (131F)! Since then I've downloaded a program called smcFanControl and bumped up the CPU fan from a default of 1000rpms to 2700rpms. It's a little louder, but I haven't had any crashes since. Temperatures now average at 38C for CPU and 46C video.
It looks like there is some sort of disconnect from the heat sensors to the fan controls. That's my guess at least.
Comments
How was your experience in doing this?
Actually, my Leopard problem was not poor performance; the machine decided not to boot at ALL. After about five days, I started up one morning and got to the blue screen that should appear just before the desktop; but that's as far as it would go. I was able to see the volume via FireWire target mode, so I backed up all my documents and did the clean (Tiger) install. Drastic, but I had it in mind that this might fix my freezing issues as well - which, so far, it has.
Your problem sounds very different, and Dave is right, the system should not be sluggish, especially with 4GB of RAM. When Leopard was WORKING, everything was very responsive for me. If you haven't already reinstalled, you might try running the Activity Monitor to see if something is hogging RAM or CPU cycles. There may be something running in the background that you're not even aware of.
I've been having a lot of crashes recently as well. I thought it may be heat related so I got a temperature widget. Turns out my video card was getting up to 67C (152.6F) and the CPU was 55C (131F)! Since then I've downloaded a program called smcFanControl and bumped up the CPU fan from a default of 1000rpms to 2700rpms. It's a little louder, but I haven't had any crashes since. Temperatures now average at 38C for CPU and 46C video.
It looks like there is some sort of disconnect from the heat sensors to the fan controls. That's my guess at least.
http://homepage.mac.com/holtmann/eidac/
sonnerie portable gratuite