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Similar results at higher temperatures here - seems like it would have been best to avoid this update. I'll have to be more conscientious with smc now.
 
I'm encoding a video, playing an HD youtube clip and playing an HD video at the same time and the fans started to change from 2000 rpm at 79-81 degrees. Right now my computer is hovering around 81-83 degrees celsius with fans at 3000-3500 rpm. I'll repeat the test again after the SMC update.

UPDATE: My computer's fans stayed at 2000 up until 82 degrees. For a while the temperature fluctuated between 74 an 80 degrees while fan speed stays at 3300 rpm. Now my computer is at 79 degrees at 3700 rpm.

My results are pretty random, but overall I don't notice any dramatic changes. If it is for the worse, then Apple will have to replace my computer with a UMBP!
 
installed this update. my MBP (early 2008) use to cruise at 40-50C but after this update, temps are up to 60-70C.. still haven't done video and photo editing.. bummer! should have installed this update.. :(
 
installed this update. my MBP (early 2008) use to cruise at 40-50C but after this update, temps are up to 60-70C.. still haven't done video and photo editing.. bummer! should have installed this update.. :(

that's really wierd. I expected the fans to rotate faster, being louder and the laptop being cooler but the oposit seems to have happened.
 
Hi all,

I would defo recommend this update to all MBP - 8600GT users out there!

In fact, I think this update is only available for MBPs with 8600 anyway... :)

Before the update my fans would spin at constant 2000rpm regardless what I do - be that using TextEdit or rendering video or 3d...

Now, it appears that my MBP became bit "smarter" so to speak so it speeds up the fans up to 3100rpm (thats the fastest i noticed so far anyway) if I am throwing some heavy workload on it...

At the same time - perhaps its just me, but it seams that fans are less noisy as well - even when they speed up above 3000rpm...

Great update I think :)
 
If it is for the worse, then Apple will have to replace my computer with a UMBP!

Not going to happen.

I had my logic board replaced about 3 months ago (8600M GT defect), and the Mac Genius told me that Apple manufacture massive stockpiles of replacement parts so they don't have to replace the whole machine. And btw, Apple will only honour their promise of fixing 8600M GT defects up to 2 years after the purchase date. After 2 years, unless you have AppleCare, they won't replace faulty 8600Ms. The majority of MBPs with a faulty GPU were manufactured around May-July 2007 apparently.

Sounds to me like they're trying to make them fail just to force people to replace them. (Constant warming then cooling is what wrecks silicon chips)
 
Sounds to me like they're trying to make them fail just to force people to replace them. (Constant warming then cooling is what wrecks silicon chips)

Or they try to artificially delay feilures out of the time Apple Care would still appy so they don't have to repair it. I bought Apple Care and my plan is to have them repair it just before Apple Care is over. Why? I hope they may be out of replacement parts until then which would force them to give me a new laptop for free (this will be in January 2011)
 
Funnily enough I'd recently noticed my Early '08 MBP's fans had started to kick in earlier than previously which I ascribed to 10.5.7 or maybe an increased build up of fluffy crud in the machine. I haven't had any need to run anything intensive since applying the SMC update but I'll fire up a Handbrake encode and see what gives...

I don't want a Unibody replacement so I tend to baby my machine with regard to heat.

Right, nothing at all until 93C and then they eventually ramped up to 6005RPM with 90-91C seemingly the temperature which triggered each successive increase up to that point.

Anyone without Handbrake or something similarly intensive can run:

yes > /dev/null

in Terminal but don't forget to quit it !

Running yes > /dev/null in two tabs (one for each core) quickly took it up to scary temperatures but the fans keppton a rollin' long after the temperature had decreased to levels at which they'd have not started up.
 
Installed it on my early 08, penryn mbp, don't really notice any difference, but everythin went smooth and I have a 5 year warranty with my apple reseller so I'm not too worried about my 8600 card.
 
Three pictures.
1) right after watching an HD youtube video for 1 minute
2) right after watching an HD youtube video for 3 minutes (did not get higher)
3) right after watching a regular youtube video for 4 minutes.
 

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Update shows up on my early 2008 MacBook Pro.. I also suspect it has to do with the faulty 8600 cards.. I remember Dell released an update some months ago for their 8600GT laptops that speeds up the fans.. Seems like a clever move for Dell, as the cards will probably have less chance of failing within the warranty period.

Now Apple is doing the same (Although it seems strange that some seem to get hotter MBPs after this update :confused:).

I think I recall reading about the 8600GTs that it's not the heat that is killing them, but in fact the temperature variations (e.g. going from hot to cold when entering sleep mode etc..)

Oh well, we have pretty decent consumer rights here in Norway, so if my laptop fails within 5 years from purchase due to faulty hardware, there is a great chance for getting it fixed/replaced by Apple for free :cool:
 
These are with handbreak runninh @ different times.


It is staying noticeably cooler with the fans @ 4500-5500. Maybe it underclocked the GPU?

This is encoding a copy of a DVD that I own. The DVD runs 1:24 minutes. Encoding is set to basic-> Normal. Size is limited to 850mb.

Geekbench has dropped about 100 points since 10.5.7 and this SMC update.
 

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These are with handbreak runninh @ different times.


It is staying noticeably cooler with the fans @ 4500-5500. Maybe it underclocked the GPU?

This is encoding a copy of a DVD that I own. The DVD runs 1:24 minutes. Encoding is set to basic-> Normal. Size is limited to 850mb.

Geekbench has dropped about 100 points since 10.5.7 and this SMC update.

God I hope that's not true. Why would they decrease the power of the GPU? Just because it's potentially faulty?
 
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