Showing posts with label nvidia. Show all posts
Showing posts with label nvidia. Show all posts

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?

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.

Friday, December 18, 2009

How it all began

This is a story of a MacBook Pro. Eventually it is going to grow to a story of two MacBook Pro's.

Before telling this story I should probably tell what's the current state of this situation.

All communication between me and Apple have come to a halt. I've tried to get my MacBook Pro fixed for months, but both Apple and Apple authorized service point are helpless when facing this laptop.

This all began summer 2008 when I bought my first 15" MacBook Pro (later: 1st MBP). I've had Apple iBook since 2005 and I was confident that my new computer should be an Apple too.

That 1st MBP had 2,5GHz Core2Duo, 2GB DDR2, 250GB HDD and NVIDIA 8600M GT.
That NVIDIA 8600M GT turned out to be a faulty one (It was then all over internet and Apple promised to repair laptops with faulty NVIDIA chip even after the warranty has ended)
My laptop had some other defects too:
Sometimes the keyboard and touchpad stopped working and there was no other way than reboot to restore the function.
Internal sound card made loud high pitch noise.
Screen went all mosaic few times a day. (this was "normal" to a broken 8600M GT card)

So I took my 1 month old laptop and went to Apple authorized service point (later just a service point, I've used the same service every time) and told them what is the problem. It took about one week to get my machine back. At this time I thought that one week without laptop isn't so bad. If only I'd knew back then that one week would get some addition to it.