13" 2.3 GHz "we observed a significant throttling of the CPU, the clock rate dropping considerably."
Review Apple MacBook Pro 13 Early 2011 (2.3 GHz dual-core, glare-type screen) - Notebookcheck.net Reviews
13" 2.7 GHz " we observed an occasional downsampling of the CPU via the EFI (BIOS equivalent) down to 800 MHz. On top of that, the tool also pointed to a thermal throttling of both processor cores."
Review Apple MacBook Pro 13 Early 2011 (2.7 GHz dual-core, glare-type screen) - Notebookcheck.net Reviews
15" 2.0 GHz "After long periods of heavy use (especially the Furmark benchmark) the system switches down to a multiplier of 8x-12x (800-1200MHz). This could also possibly be caused by the small power supply (85-watt power supply compared to the 90.4 watt highest observed power consumption of the laptop)."
Review Apple MacBook Pro 15 Early 2011 (2.0 GHz Quad-Core, Matte Screen) - Notebookcheck.net Reviews
17" 2.3 GHz "- Throttles at maximum load (AC adapter too small)
- High CPU temperatures with a high load
- Loud system noise with a high "
Review update Apple MacBook Pro 17 Early 2011 (2.3 GHz quad-core, matte) - Notebookcheck.net Reviews
Seriously!?
Come on Apple... I know that you sell these machines more than ever but you could try to make fully functional laptop once in a while.
Showing posts with label throttling. Show all posts
Showing posts with label throttling. Show all posts
Friday, June 17, 2011
Thursday, May 6, 2010
Apple! Where's your spine?
I was told to take my laptop to a service.
Apple now suspects that the motherboard might be faulty. I gave them the error code I received some time a go when i ran the hardware test. "4SNS/1/40000000: TNOP-76.375"
The "TNOP" part here means that it has something to do with the temperature sensor.
Too bad that it has nothing to do with the ineffective cooling. Seems more like a excuse rather than a solution.
Pay attention to number 3. Maybe somewhere next Wednesday magically every Apple laptop might start working when they fix my possibly faulty temperature sensor.
Apple now suspects that the motherboard might be faulty. I gave them the error code I received some time a go when i ran the hardware test. "4SNS/1/40000000: TNOP-76.375"
The "TNOP" part here means that it has something to do with the temperature sensor.
Too bad that it has nothing to do with the ineffective cooling. Seems more like a excuse rather than a solution.
- If it would be faulty temperature sensor why the computer would shut down due to overheating even the fans spinning full speed? (ok... this one is possible with wild imagination)
- Why would the computer run constantly at lower clock speed if it would not be too hot?
- Why would my computers broken temperature sensor affect EVERY UNIBODY LAPTOP IN THE WORLD!?
Pay attention to number 3. Maybe somewhere next Wednesday magically every Apple laptop might start working when they fix my possibly faulty temperature sensor.
Friday, April 2, 2010
Even the full fan speed is not enough
Good thing I did not attend that LAN event I mentioned earlier.
I've tried to play Just Cause 2 demo but my MacBook Pro sets itself to suspend after I've played about 20 minutes. HWMonitor told me that CPU was 111°C and NVIDIA 9600M GT 103°C just before screen went black.
Only way to prevent this happening is to raise the computer few centimeters from the table and add external fan to blow cool air towards the enclosure. Sounds really pro solution for a Pro laptop?
CPU throttling sure is annoying but computer constantly shutting down due to overheating is more frustrating than lowered CPU frequency.
I've called Apple to inform this new symptom. Let's see if this is a feature too?
I've tried to play Just Cause 2 demo but my MacBook Pro sets itself to suspend after I've played about 20 minutes. HWMonitor told me that CPU was 111°C and NVIDIA 9600M GT 103°C just before screen went black.
Only way to prevent this happening is to raise the computer few centimeters from the table and add external fan to blow cool air towards the enclosure. Sounds really pro solution for a Pro laptop?
CPU throttling sure is annoying but computer constantly shutting down due to overheating is more frustrating than lowered CPU frequency.
I've called Apple to inform this new symptom. Let's see if this is a feature too?
Wednesday, March 24, 2010
Fans follow only the enclosure temperature?
I installed Snow Leopard only to notice that nothing changed.
Could it be possible that fans try to keep only the enclosure cool? No matter how hot the CPU is fans will will not speed up until the enclosure gets too hot?
See for yourself.
In the first picture I have run Seti@Home with CPU and Einstein@Home with GPU (NVIDIA 9600M GT) about one hour and temperatures have settled down.
Before taking second picture I let the computer sleep overnight to make sure it was completely at room temperature and the I launched the same applications (as in the 1st picture) and waited until CPU reaches ~110°C .
As you can see most temperatures are higher in the second picture even though computer have been under stress less than 3 minutes. Only enclosure temperatures are higher.
This is so frustrating. I'd better call consumer dispute board to ask if they have moved forward with my case.
Could it be possible that fans try to keep only the enclosure cool? No matter how hot the CPU is fans will will not speed up until the enclosure gets too hot?
See for yourself.
In the first picture I have run Seti@Home with CPU and Einstein@Home with GPU (NVIDIA 9600M GT) about one hour and temperatures have settled down.
Before taking second picture I let the computer sleep overnight to make sure it was completely at room temperature and the I launched the same applications (as in the 1st picture) and waited until CPU reaches ~110°C .
As you can see most temperatures are higher in the second picture even though computer have been under stress less than 3 minutes. Only enclosure temperatures are higher.
This is so frustrating. I'd better call consumer dispute board to ask if they have moved forward with my case.
Friday, December 18, 2009
The era of Unibody
I don't know whether last blog entry ended dramatically enough.
There are no words to describe how my thrill turned to disappointment.
I did not like the Glossy screen. I definitely did not like the loose hinges, but most of all...
I did not like my new MacBook Pro's CPU overheating to 110°C and therefore CPU dropping to 1,6GHz
15 minutes after hearing the "wall-e chime" i typed "yes > /dev/null" in two separate terminal windows just to check how quiet this new Unibody computer was. Indeed it was quiet... it was really quiet... a bit too quiet?
Soon after installing temperature and fan speed monitor software if found out why this Unibody seemed so quiet compared to my 1st MacBook Pro which fans were at 4500 - 5000rpm and cpu temperature was at 85°C at full load. This Unibody MacBook Pro's fans never speed up above 2000rpm. When I had enough courage I launched again two yes -processes and this time I did not quit them... I watched CPU squirming at 110°C for ~5 minutes and eventually fans started slowly speeding up untill CPU temperature was dropped to 95°C.
I even installed the supplied OS X Leopard twice to make sure that it is not software related problem. I also installed Windows XP to check and yes. Same overheating problem (actually I should call this lazy fan problem) occurred there too. I tried gaming but first 15 minutes was like a watching dia presentation as the CPU was constantly switching between 2800MHz and 1600MHz.
I was angry, not again a faulty computer. Well this time the flaw is so obvious so I have nothing to worry about. Maybe one week without computer and then I could finally have a computer whereto I can trust in every situation.
Did I mention before "boy how wrong I was" ?
I made one big mistake. I Google'd "Unibody overheat" and found several other Unibody owners struggling with this fan issue.
I made my assumptions that this is a flaw that concerns all Unibody laptops. Therefore i thought that Apple would make a Firmware update to make fans wake up earlier. And because an fix is already on its way it is pointless to take my new machine to a repair.
I prolonged the inevitable too long. Finally I had to visit the same service point and I asked whether they know what to do with this type overheating. And sure they did have an solution...
There are no words to describe how my thrill turned to disappointment.
I did not like the Glossy screen. I definitely did not like the loose hinges, but most of all...
I did not like my new MacBook Pro's CPU overheating to 110°C and therefore CPU dropping to 1,6GHz
15 minutes after hearing the "wall-e chime" i typed "yes > /dev/null" in two separate terminal windows just to check how quiet this new Unibody computer was. Indeed it was quiet... it was really quiet... a bit too quiet?
Soon after installing temperature and fan speed monitor software if found out why this Unibody seemed so quiet compared to my 1st MacBook Pro which fans were at 4500 - 5000rpm and cpu temperature was at 85°C at full load. This Unibody MacBook Pro's fans never speed up above 2000rpm. When I had enough courage I launched again two yes -processes and this time I did not quit them... I watched CPU squirming at 110°C for ~5 minutes and eventually fans started slowly speeding up untill CPU temperature was dropped to 95°C.
I even installed the supplied OS X Leopard twice to make sure that it is not software related problem. I also installed Windows XP to check and yes. Same overheating problem (actually I should call this lazy fan problem) occurred there too. I tried gaming but first 15 minutes was like a watching dia presentation as the CPU was constantly switching between 2800MHz and 1600MHz.
I was angry, not again a faulty computer. Well this time the flaw is so obvious so I have nothing to worry about. Maybe one week without computer and then I could finally have a computer whereto I can trust in every situation.
Did I mention before "boy how wrong I was" ?
I made one big mistake. I Google'd "Unibody overheat" and found several other Unibody owners struggling with this fan issue.
I made my assumptions that this is a flaw that concerns all Unibody laptops. Therefore i thought that Apple would make a Firmware update to make fans wake up earlier. And because an fix is already on its way it is pointless to take my new machine to a repair.
I prolonged the inevitable too long. Finally I had to visit the same service point and I asked whether they know what to do with this type overheating. And sure they did have an solution...
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