GPU diode temperature sensor

I use iStat to keep an eye on the temperature of my macbook pro.

I noticed today that the temperature of my gpu diode dropped to -128 degrees Celsius. I updated iStat to version 2.0. Then I noticed that GPU diode does not even show up in the menu. Therefore I downloaded Temperature Monitor and the GPU diode does not show.

I can still see the temperature of the GPU heatsink however.

Does this mean that the GPU diode is bad? Or did the mac os X disable the reading of the GPU diode?

If the GPU diode temperature sensor did go bad, is there any problems with running the laptop without getting it fixed?

Any help with this matter would be very much appreciated.

Macbook Pro 3, Mac OS X (10.6.1)

Posted on Sep 28, 2009 1:21 AM

16 replies

KingKow

Level 1

0 points

Aug 29, 2010 8:32 PM in response to wlfpck

Hi Guys,
I'm having the same reading on my MBP i7. I believe all was ok until yesterday when i played a bit of starcraft 2. Since then, the Sensor says -127 (that's C). So is there a known issue with the card?

Anyone got an explanation on this issue? I think it would be safe for me to get it checked by the apple geniuses.

On a side note, that's the 2nd MBP in a week. First one would just hang every 30 mins and this one too seem to have issues.

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GPU diode temperature sensor

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