[chimpanzee]

Originally Posted by teknopimp

in clamshell mode connected to 22" cinema display temp hovers around 125 (GPU) degrees. occasionally rises to 130 and that's when the fan kicks on. during heavy use (photoshop, multiple apps) it goes up 135+. rarely do i hear the fan go hi-speed. much quieter than my departed TiBook; not as quiet as an ibook.

My Powerbook G4 1.5G 15" gets dang hot..like other users, can't put it on my thighs. As an engineer, the heat really worries me.

When it gets hot, I hear a clicking-noise..is this the fan kicking in? Or, is it something else?

Right now, I have the PB proppped up at the front.

I have a HP PC laptop, that doesn't get hot, & I can hear the fan running.

[chimpanzee]

I guess I answered my own question:

I heard the clicking noise again, then opened up Temperox. It shows the "rear left fan" at 1797 rpm.

This whole time I thought the noise was a disk drive about to explode!!
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I've seen this device @Compusa: a flat base (doesn't prop up the PB) which has 2 fans that are USB powered. Around $60..is it worth it? Except, I don't like using USB slot.

What about an Aluminum base, you can get it at Target (Kitchen Accessories)..does that help dissipate the heat? Don't they make a specific accessory like that for Powerbooks?