Macbooks core duo 2ghz really work very heat?

Dj-Grobe · Post by **Dj-Grobe** » Tue Jan 23, 2007 6:00 am

I have IMAC for djing, but now for long gigs when need take airplane, i want buy macbook, imac its really portable, but for any long travel macbook its really best.
Anyway i continue using imac, i love the big screen : ) and its portable.

Dont tellme buy macbook pro lol, its absolutly ridiculus expensive.....

Here i can buy at really low price macbook 2ghz black.

I read lot of post about temperature troubles etc etc.

That troubles are only on the first macbooks?
Apple release firmware upgrade improve the temperature.

Sombody here use macbook black core duo 2ghz and can tellme hwo the machine perform on that very hots clubs?

Core 2 duo really work very low temperature compared with core duo on macbook?

Sombody experince frezes due hot temperature on macbooks core duo 2ghz?

I aprecia all feedbacks possible please : )

Pasha · Post by **Pasha** » Tue Jan 23, 2007 7:09 am

Macbook C2D here.

So far I did not notice any freeze due to temperature.
I installed 'Menu temperature' a menu bar applet that monitors
CPU temp and speed at specific intervals.
What happens every time is that throttling is often used to keep CPU cool.
My MacBook starts at 1.33 Ghz, 63 Centigrades and then in response to load
can reach 2.0 Ghz and thus higher temperatures but only for the time needed. When this happens fan runs at high speed to tackle heat and keep the CPU cool when the load does not permit throttling. C2D CPUs are made so that when fan is not enough to deal with temperature they lower the frequency accordingly. To avoid initial throttling a kernel extension need to be taken out, but in this way fan are up and whining all the time and I think the system runs out of specs so I put the kernel extension back where it belongs.
I have been using Live since day one with this MacBook and I simply noticed that my Live Projects are not enough to trigger high clock frequencies and high temperatures. Live says CPU load is around 40%. I use a mix or recorded audio tracks with effects, internal Live instruments (Operator & Simpler) and some plug-in. The max number of tracks I have reached so far is 14. There are only two applications that create havoc in my MacBook and they are Parallels and VMWare Beta. CPU jumps to 2.0 Ghz and Temperature raises to 81 Centigrades if I use the virtual machine intensively or if a program hangs in Windows XP inside the virtual machine. For example, sometimes Parallels does not deal very well with MIDI USB interfaces. When this happens Win XP inside the Virtual Machine 'hangs' and requests more power from CPU. Fan usually start at 70 Centigrades so you can imagine the whining at 81 Centigrades...

In this dangerous situation (the thermal junction switches the core off to avoid melting it at 100 Centigrades) throttling comes in and cools the CPU down by diminishing frequency. This is a safety measure taken by the system to avoid overheating. I don't know if this is made by the kernel extension, hardware or a mix or both but better stop investigating...

Other than that he system is quite and most of the heat comes from the internal hard drive. So far, almost 2 months of daily usage I did not experience a 'crazy' reboot or freezes. Apart from the occasional loud whining the machine is ok.
Hope this helps,

- Best
- Pasha

Dj-Grobe · Post by **Dj-Grobe** » Tue Jan 23, 2007 7:15 am

Thanks pasha for your time, anyway machine on my target its core duo not core 2 duo
: )

Any way thanks for your time writting this info
This info can be usefull for some guy want buy core 2 duo : )

Sombody with core dio 2ghz macbook can post your experiences?

Best regards.

Pasha · Post by **Pasha** » Tue Jan 23, 2007 11:15 am

Dj-Grobe wrote:Thanks pasha for your time, anyway machine on my target its core duo not core 2 duo
: )

Any way thanks for your time writting this info
This info can be usefull for some guy want buy core 2 duo : )

Sombody with core dio 2ghz macbook can post your experiences?

Best regards.

Ooops. I didn't notice that

Anyway it is said on various forums and blogs that C2D deals with heat better than previous models. If I catch some useful link I will post it here.

- Best
- Pasha

robin · Post by **robin** » Tue Jan 23, 2007 11:36 am

I would be very careful of any core duo based mac. A lot of them had trouble.

I have a c2d black macbook. The temperature is way lower than my old powerbook (1.33 12").
The macbook worked well the last time i used it in a club.

zappen · Post by **zappen** » Tue Jan 23, 2007 11:47 am

Dj-Grobe wrote:Sombody experince frezes due hot temperature on macbooks core duo 2ghz?

I aprecia all feedbacks possible please : )

yes more then somebody has problems related to the temperature with macbooks

http://www.appledefects.com/wiki/index. ... treme_Heat

http://www.appledefects.com/wiki/index. ... _shutdowns

http://www.appledefects.com/?p=214

actually they issued an update that keeps the fans faster and ON more often , but that sucks more power, so you won't get 5 hrs of battery, but 3 instead..

this is what i know

Tarekith · Post by **Tarekith** » Tue Jan 23, 2007 1:18 pm

It definitely seems as if the Core2 duos are running cooler than the first core duo's from what I've seen online.

I know a lot of people were complaining about how hot the core duo Macbook pro's got, but my core2duo MBP is usually very cool.

If you're worried about heat, aim for the core 2 duo version of the MB IMO.

Dj-Grobe · Post by **Dj-Grobe** » Wed Jan 24, 2007 8:29 am

well thanks to all, anyway i apreciate any user of macbook with core duo.

All thsi videos are prior apple release firmware update improve energy and fan manager.

Anyway i think i continue using imac : ) work super low temperature.
I thknk i should need buy bag ILUGGER : ) and all super portable trouble fixed : )

Aparently macbooks work very heat.........and price for core 2 duo herein my country ist very high.

Cya boys !

Thanks again.

Robert Henke · Post by **Robert Henke** » Wed Jan 24, 2007 10:41 am

The first generation macbooks had no heat problem, but an insulation issue on the heat sensors causing the computer to believe it suddenly became super hot and to perform a security shutdown. This issue was called the "Random Shutdown Syndrome" and has been solved. Mine suffered from it also. Apple replaced the heat sensor and since then it runs fine.

Robert

CWoodOne · Post by **CWoodOne** » Wed Jan 24, 2007 2:36 pm

Robert Henke wrote:The first generation macbooks had no heat problem, but an insulation issue on the heat sensors causing the computer to believe it suddenly became super hot and to perform a security shutdown. This issue was called the "Random Shutdown Syndrome" and has been solved. Mine suffered from it also. Apple replaced the heat sensor and since then it runs fine.

Robert

I have a Macbook C2D... even if it's running at 90% CPU it's still OK, the fan will occasionally come on, but not really that often. Gets a little hot on your real laptop though...

udp · Post by **udp** » Wed Jan 24, 2007 2:41 pm

I have a core duo white MacBook that has had zero problems with heat. I bought it in August, so I don't think it was first generation. I absolutely love this machine.

nonnus · Post by **nonnus** » Wed Jan 24, 2007 5:41 pm

i just replaced my 1st gen mbp 1.83 core duo for a 3rd (?) gen mbp 2.16 core2duo and i can assure you that you would do alot better if you choose to go with a newer machine...

first of all, i must say my previous machine never really failed on me, but it never was taken to a club performing extreme situation, just heavy work in studio and a couple mild experiences in friendly parties...

about the heat/insulation issue i must say i noticed that if the 2 machines report same temp, the older one always feels alot hotter on the touch, both on top and the bottom of the case.
from the info i gathered about cpu setpping it seems that these processors do some of it internally,, without any kind of software related control

ehr core duo machine would have a tyical 60-65 idle temp, going all the way to 89 if pushed hard, never really noticed it going to 90 though, but neither ever heard the fans really kicking in even at these temps...
now, with the new machine i get an idle temp of 42, even if i use coolbook to keep it locked at 2.17,
at full load (2 yes /dev/null processes and xbench) it never went above 76-78 and i have heard the fans kick in more times in 5 days than in the 9 moths i used the other one, but usually only on extreme situations...

i also noticed alot of difference in temps in both machines when undevolting with coolbook, it seems the default voltages for the higher cpu settings are a bit excessive...

the new machine also gets higher scores in xbench in all tests, even if both are locked to the same cpu speed

so, unless you have a mega uber deal on the core duo machine, like 500 $/€...

my advice would be to consider a newer machine

Dj-Grobe · Post by **Dj-Grobe** » Wed Jan 24, 2007 7:02 pm

Aparently all that troubels are the first units macbook from factory.
I dont think macbook blac CORE DUO (not core 2 duo) its ok, but need some confirmation form one user.......

Some macbook black user from here !!?

: )

robin · Post by **robin** » Wed Jan 24, 2007 8:57 pm

Post week 35 (or 37 I can't recall) builds (it's in the serial number) were meant to have had all the RSS things sorted. A lot of the earlier models eventually had this logic board installed too.

You do get less cache and a few other bits that aren't quite as good as the c2d but I think that's your best bet.

The black models didn't have the fading plastic of the earlier white models too.

Dj-Grobe · Post by **Dj-Grobe** » Wed Jan 24, 2007 9:38 pm

That is waht i think, i think all taht heat troubles, and fading plastics, adn shutdowns are of the earlier mdoels,

Just need sombody confirm this : )

Thanks robin.

Anyway if some macbook user can repply here i apareciate. : )

Aparently nobody use macbooks core duo 2ghz ? lol

Macbooks core duo 2ghz really work very heat?

Macbooks core duo 2ghz really work very heat?

Re: Macbooks core duo 2ghz really work very heat?