MACBOOK PRO & SNOW LEOPARD - OVERHEATING

Did an Erase and clean install of Leopard. I was wrong, it's not Snow Leopard. The overheating is on Mac OS X Leopard as well, so it's gotta be the hardware. Reached over 100ºC with Leopard too.

I tried the same flash movie on Break.com with my old PowerMac G5 from 2003, the temperature reached a maximum of 75ºC. Normally it seems to run at around 55ºC, so that movie gotta be a real burner in process power though...

Sorry for distrusting you Snow Leopard. 😉

In a way, I'm glad I don't have to run with Leopard. Just hope the reparation fixes the problem and that it doesn't take to long.

Wow, I am surprised to find 8 pages on this topic. My 15" is overheating as well and I already sent it in to apple for repairs once for overheating and they changed the fans. Now after snow leopard the CPU and GPU are running at 80°C. It is impossible to use this machine as a laptop. Perhaps what we need is for someone to fall asleep with it on their lap, let it burn their legs off, and sue Apple for millions of dollars?

Just an Update... Downgraded back to 10.5.8. Reloaded most of my apps, been doing some video editing and photo editing (FCE and Photoshop Elements)... Temp still running good (no higher than 46°C)... Looking more and more like an OS issue.. Oh as an aside, the service battery issue has gone away also (So far) By now this box would have gone up to at least 70°C

My 3 year old macbook pro is now unusable because of kernel panics. I checked the temps and it gets significantly higher than >100ºC sometimes as high as >140º. Below 70ºC is unheard of for me. Fantastic timing since I just started a new job and moved outside of the United States. I'll be following this message board closely.

I tried the battery removal experiment. My temperature dropped 10 degrees Celsius even while running VMWare Windows 7 which always has driven the temperature up. With the battery out, temp was 66 deg Celsius. Battery in 75-80 deg Celsius. Going to try zapping my PRAM, next.

neilford

I tried the battery removal experiment. My temperature dropped 10 degrees
As I said temps were lower with Leopard. Now with SL, temps are at least 10 degrees Celsius higher.

Running VMWare Windows 7 RC always has driven the temperature up. Under Leopard, the temp averaged around 65 degrees Celsius, with battery in. Under SL, with the battery out, temp is about 61-66 deg Celsius. Battery in, 75-80 deg Celsius. Going to try zapping my PRAM, next.

neilford

Postscript:

I just put the battery back in and ran VMWARE. Temperature is 75-81 Celsius. Took battery while running VMware, temp dropped to 61-66 Celsius. Zapping PRAM made no difference.

I notice that my fan's rpm is 6175 whenever I stream video from JustinTV. I even downloaded the latest Adobe Flash and the update for Snow.

I increased the ram from 2 to 4. I thought the Macbook needed more memory to get the temp and fan down.

Anyone else?

i just wanted to let you guys know that i finaly fixed the overheating problem and it wasnt snow leopard. it was my fans. i brought my laptop to the apple specialest, they replaced my fans and my computer is staying so cool its not even funny. before it was as hot as a frying pan. for some reason the problem with my worn out fans didnt come to light untill i switched to sl and i think the same thing is going on with you guys. i suggest all of you get your fans checked out. they most likely have to be replaced. im so glad this problems fixed and i didnt have to pay a dime because my computer is under warrenty.

Message was edited by: johnpalley

I'm having the same problem.

MacBook Pro 4,1 2008 Non-Unibody
2.5GHz Core2Duo
200Gb HDD

My CPU temperature is constantly 78C+ with the fans going all the time. It's definately a Snow Leopard issue because it happens when I first boot in with nothing running. I've tried quitting everything that loads etc but to no avail.

Has anyone come up with an answer to this problem or are we just going to have to wait for Apple? At this rate I'm worried my MBP is going to die on me, because being that hot all the time is certainly not good for it.

Sam

If it helps i have noticed my laptop is having this problem and i have noticed it has alot to do with apps, its like they get into a cycle of sapping cpu for no reason then my cpu load gets really high and up goes the tep and the fan speed.

i also notice that the rest of my computer is actually maintaining a reasonable temp even my cpu heatsink temp is ok, but my actual cpu temp skyrockets.

i would normally attribute this to a problem with istat but as i can actually physically feel my laptop getting hotter i am leaning towards a problem with sl.

it happened 5 mins ago and i relaunched finder...which gave me instant results. I suggest until this is fixed keeping an eye on activity monitor and restarting apps when they show signs of cpu draining.

just my 2 cents

oh this is on a unibody 17" mbp 2009 2.9ghz 4gigs ram running snow leopard 10.6.1

Message was edited by: sacredgeometry

I don't think I have a hardware issue with the fans. It was looked at by Apple and it's fine.

The problem started when I upgraded to SL.

Question: It sounds like everyone who has upgraded from Leopard to Snow is experiencing problems.

Is anyone experiencing problems from a new Macbook with Snow preinstalled?

well i had the issue of my macbookair always running around 70 c even when doing nothing and the fan going into a data induced rage at 6200rpm, so i did a bit of looking around and found two things, 1. adobe flash is ****, and when ever playing flash on youtube for exsample, would ramp up the load on my cpu and drive the temp up to about 80 or 90c. 2. Then i found Coolbook app. Installed and paid the 10 bucks, then underclocked my cpu, now my normal operating temp is 45c and around 48c when just doing normal surfing ect ect + the fun rarely goes above 2000rpm... still has the problem with flash player, lets hope someone can fix that. But Coolbook is well worth the 10 bucks it cost me. Its a pity that we have to pay for a bit of software when apple should have got the voltage load for the cpu's right before ltting them go out the door, but of well.

Anyone noticing that this is happening while their battery is charging? i.e. fans going crazy and overheating while charging.

My fans always run when running flash - youtube, vimeo, hulu, justin, etc.

I updated the flash and it was already up-to-date! Still roaring like a 747 jet engine.

Message was edited by: TKNY77