Originally Posted by G-Omaha
How many and what type of HDDs, CPU, and Memory?
Sorry Gary, I didn't see this till now - 1 60GB 7200 HDD, 3.4Ghz Northwood, 1GB memory.
It should also be noted that propping the monitor up on a stand keeps my internal temperatures high for a longer time than if I keep the laptop flat on the desk. I suppose the way the fan intakes/exhausts are designed, its better to leave the machine on a flat surface (or on a fan-cooler surface) than propped up.
Also another clarification, 40 C is the lowest point while the machine is on, 50 C is the highest (while idle) upper 50's when playing UT2004 for a prolonged period of time.
In other words, I can turn the machine on, leave it at the desktop and it'll go between 40 and 50 as the fan kicks on and off - if I prop the machine up so there's air underneath, the on off cycles are more frequent. If I play UT2004, the fan is on all the time and hits 59 C.
So - to those of you propping your 8790's up in hopes that you get better cooling, don't do it unless you're also blowing air around. Propping it up by itself with no additional airflow is counterproductive to the 8790's inherent cooling design.
Edit: OK, after further tests, with the notebook propped up, the temperature would go up to 50, fan would kick it back down to 40, and then shut off. It would then go back up to 50, fan goes on, back to 40. This cycle would repeat itself ad nauseum. Putting it on a flat surface allowed the cycle interval to happen less frequent, until it apparently flatlined and now the temperature stays at a constant 40-42C with the fan always on.
So it looks like with the machine propped up, the sensor that turns on the fan sees everything as cool, and the fan goes off. Once internal temperature hits 50 C, the fans go on again, rinse, repeat...
Can anyone else confirm this behavior?