Yes. When on AC it may run warmer due to the AC board. This does sound like it is overheating. Use iStat Menus or Temperature Monitor to determine the temperature when you are working the CPU and GPU.My powerbook g4 gets extemely hot and then the screen freezes when I have it plugged in, and it only happens when it is plugged in not while it is on the battery charge, is this a sign it needs new thermal paste maybe?
Since I've never had a Mac overheat, I am carious, When PPC Macs overheat, Do they have the Auto off failsafe?Sometimes, when a system crashes, it will peg the CPU at 100% usage causing increased heat.
Yes, Macs have overheat protection. It's called thermal shutdown. The logicboard is programmed to shut off when a certain temperature is reached. That temp, by design, is several degrees lower than the actual temperature where damage would occur.Since I've never had a Mac overheat, I am carious, When PPC Macs overheat, Do they have the Auto off failsafe?
I have had plenty of Windows PCs overheat and when they do they always shut down no warning. One of my laptops did always freeze and shut off come to find out the battery was shorted out, getting hot, and making the computer shut itself off.
The only way I can tell that there is excessive heat in the case is to get a ballpark figure from the hard drives.I'm about to inherit Erik's problem with the Gigadesigns Dual 1.8, which he's told me won't run reliably at 1.8ghz without additional cooling in a Quicksilver case. I also had to add a fan when I upgraded a B&W G3 to a faster-clocked G4, as it was getting uncomfortably warm. It's cool enough now that I may even be able to safely overclock it a little bit.
Under extended full load when used on a hard surface like a table my PowerBook does not go over 141 F with 8 month old paste in it (Arctic Silver Ceramique 2). At about 140 F, the fans should kick in to cool it down.The system still gets hot, that issue wasn't solved, and will likely require thermal paste. I just meant that it doesn't freeze and hang up on me anymore.