New Posts  All Forums:Forum Nav:

managing CPU Heat

post #1 of 4
6/25/07 at 1:36pm
Thread Starter 
I have several pieces of software that will shut down if the CPU is worked at or near 100% for more than 4 or 5 minutes. In watching the heat via MobileMeter it reaches 49 to 50 C. Of interest to me, if I unplug the power supply the CPU rating drops to 2.xx & will work at or near 100% until the tasks is done or the battery is dead. & the temp doesn't reach as high. I've cleaned thoroughly & applied AS5 correctly as it will work longer than it originally did when I got it used. Can Coollabaratory Liquid Pro be used in stead of AS5? It warns about Aluminum. I don't know what type of metal the top of the CPU or the bottom of the heat sink are.
On MobileMeter there is a setting when looking at the ACPI temperature tab that indicates that the "Passive Cooling Temperature" is unspecified. Is there a way to specify that if the temperature reaches XX C to reduce the CPU clocking to 3.0 instead of 3.4?
I know these laptops have heat issues. I've managed to get rid of the artifacts by underclocking the Video card. I'm hoping to manage the CPU temp in a similar way.
Any ideas?
Reply
Reply
post #2 of 4
6/28/07 at 4:58pm
Quote:
Originally Posted by rickinsavh View Post
I have several pieces of software that will shut down if the CPU is worked at or near 100% for more than 4 or 5 minutes. In watching the heat via MobileMeter it reaches 49 to 50 C. Of interest to me, if I unplug the power supply the CPU rating drops to 2.xx & will work at or near 100% until the tasks is done or the battery is dead. & the temp doesn't reach as high. I've cleaned thoroughly & applied AS5 correctly as it will work longer than it originally did when I got it used. Can Coollabaratory Liquid Pro be used in stead of AS5? It warns about Aluminum. I don't know what type of metal the top of the CPU or the bottom of the heat sink are.
On MobileMeter there is a setting when looking at the ACPI temperature tab that indicates that the "Passive Cooling Temperature" is unspecified. Is there a way to specify that if the temperature reaches XX C to reduce the CPU clocking to 3.0 instead of 3.4?
I know these laptops have heat issues. I've managed to get rid of the artifacts by underclocking the Video card. I'm hoping to manage the CPU temp in a similar way.
Any ideas?

1) Always have the Turbo Fans (Fn+F10) on. The 8790 will cook itself to death if not.
2) Invest in an external cooling device (I purchased a Antec Spire Breeze; check my sig for the review)
3) Make sure that when you're cleaning your baby, you use compressed air everywhere, this includes the heat sink and all of the fans.
4) Stick with AS5; it's the best at what it does and can be verified by anyone on these boards.

Look here for my experience with dust. http://www.notebookforums.com/post2479836-12.html
Reply
Reply
post #3 of 4
6/28/07 at 6:21pm
Thread Starter 
Thanks for the reply Boogieman,
I too keep the fans in turbo, Fn F10, I also use a cooling pad. Still it overheats & shuts down software on high CPU use. I'm planning on redoing the AS5 I figure I'll get better at it with practice. I haven't taken the heat sink up since my first attempt to use AS5. At least I'll see how well it spread out & can decide if a little more is req'd. Thanks for the advice regarding the Coollabaratory Liquid Pro.
I've ordered an "Evercool Magic Notebook NB-MA1" from Nexfan.com. It's an external fan that attaches to the exhaust of the notebook & draws air out. I'm hoping that it will draw more air across the heat sink.

Any thoughts on a means of underclocking the CPU?

I think the pics are broken on the link you suggested, but I think I've seen them before the dust looked like a filter!
Reply
Reply
post #4 of 4
7/2/07 at 1:20am
Quote:
Originally Posted by rickinsavh View Post
Thanks for the reply Boogieman,
I too keep the fans in turbo, Fn F10, I also use a cooling pad. Still it overheats & shuts down software on high CPU use. I'm planning on redoing the AS5 I figure I'll get better at it with practice. I haven't taken the heat sink up since my first attempt to use AS5. At least I'll see how well it spread out & can decide if a little more is req'd. Thanks for the advice regarding the Coollabaratory Liquid Pro.
I've ordered an "Evercool Magic Notebook NB-MA1" from Nexfan.com. It's an external fan that attaches to the exhaust of the notebook & draws air out. I'm hoping that it will draw more air across the heat sink.

Any thoughts on a means of underclocking the CPU?

I think the pics are broken on the link you suggested, but I think I've seen them before the dust looked like a filter!

I've never had to underclock the CPU, simply because I've never seemed to push the machine to the limit of overheating, aside from gaming. Even when gaming, I've learned that when pushing the 8790, give it a place to expel heat; otherwise ka-boom happens.

Good luck with the new cooler.
Reply
Reply
New Posts  All Forums:Forum Nav:
  Return Home