I asked an ebay seller for his thoughts about the last generation core duo Macbook Pros and the newer i5s (15″) and i7s (17″), “I’d stay away from the newer MPB models until Apple solves the heating issue . . . previous models (of the Macbook Pro), such as the 2.8 Ghz MBP run barely warm to the touch and will last a lot longer because of that.”
Wanting to know exactly how hot would be too hot for the processor temp to rise up to I did some searching on the topic and came up with several references to the heating issue:
People are discussing the heating issue here.
This team found that processor temp didn’t exceed 80º and MBP, “ran silently, even after 15 minutes of running the processor at maximum.”
Some people in this forum say the i5 doesn’t run as hot as the i7, and a couple of posters recommend running an i5 in combination with an SSD drive, will give you the best overall performance.
In an April 2010 article, Chris Smith at shares this information:
PC Authority put the new 17-inch MacBook Pro to the test and it managed to heat it up to over 100 degrees Celsius which is certainly something future MacBook Pro buyers wouldn’t want to hear. To blame for the whole thing is the new Core i7 processor, a CPU MacBook Pro have been waiting for a long time now . . .
When trying Maxon’s Cinebench 11.5, a 3D benchmark used to test multithreading in CPUs, the temperature rose to 95 degrees which is awfully close to the boiling point of water . . . Testing has been repeated and temperatures reached an unprecedented 101 degrees Celsius which is way hotter than I could have ever imagined. And certainly a lot hotter than the current laptop I am using, which, as it is, needs an external cooler to keep temperatures down when the CPU has to deal with various simultaneous complex processes.
. . . it looks like that aluminum unibody isn’t properly disposing off that extra heat coming from the new i7 CPU. You’ll say that you’re not going to put your i7 MacBook Pro to the same CPU strains, but people who are buying 17-inch machines are getting them to forge them in battle.
I’ll probably buy a 15″ MBP, which means the i5 processor in this year’s model. Although I like the 17″ screen size of the i7 I can’t see lugging a computer that big around with me all the time. I need to decide if it’s worthwhile going for the newest processor and taking a chance with battling heating issues, or buying something a bit older and slower which runs much cooler. I’m concerned about the longevity of the machine and also about performance – I want to move into video making so speed is also an important consideration.
When you complete the dual-trace with a DSO oscilloscope, you can watch the clock signal and test signal.
Detect Laoding possibly business travel is not the schedule you print much more difficult.
400 on a new PC system.