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Overheated Macs?

Hussein Baghdadi
clojure forum advocate

Joined: Nov 08, 2003
Posts: 3479

I have MacBook Pro (released at the second half of 2009) that has two graphics card.
I installed iSTAT Nano widget to monitor the system, please take a look at the attached screen shot.
My MBP is really becoming hot, especially the left side and the bottom piece.
Regularly, the "GPU Diode" temperature is reaching 70 !!
Is this normal for MBPs? or it is just mine?
I'm really anxious of possible potential problems.

[Thumbnail for Screen shot 2010-08-20 at 8.28.36 PM.png]

marc weber

Joined: Aug 31, 2004
Posts: 11343

I'm curious whether you found anything out about this.

I did some searching, and found a lot of forum posts reporting GPU diode temps in the 60-80 C range -- typically while gaming. However, I don't know if that means it's "normal" or whether it's simply a common issue. I found a lot of conjecture [citation needed ], but nothing conclusive.

"We're kind of on the level of crossword puzzle writers... And no one ever goes to them and gives them an award." ~Joe Strummer
Gregg Bolinger
GenRocket Founder
Ranch Hand

Joined: Jul 11, 2001
Posts: 15302

I have an i7 MBP running about 14 applications:

2 browsers
Pandora AIR app
Preview (PDF)

Bottom left is really hot, but as I understand it, the case is part of the heat-sync. The case itself is used to dissipate heat away from the system. So it makes sense that it is hot.

GenRocket - Experts at Building Test Data
Hussein Baghdadi
clojure forum advocate

Joined: Nov 08, 2003
Posts: 3479

It looks these numbers are usual and nothing to be afraid of.
According to "Apple Discussion Forums", a Mac will turn itself off when it is over heated.
I agree. Here's the link:
subject: Overheated Macs?
It's not a secret anymore!