iMac GPU temp increase after Lion

[Wreckie]

I am experiencing quite big temperature increase of GPU after installing Lion. With SL I had about 60'C while slight usage and web browsing, now iStat shows 75'C. I don't consider it normal, what could cause it? Is there any possible fix for it?

Thx in advance

 

[Spike88]

One method to keep iMac insides cooler is to install 3rd party Fan Control software. Increase the default fan speed by a small 300 RPMs (re: default is is 950 RPMs. Increase to minimum 1200 RPMs) and it will keep the insides cooler.

If wondering, I run 3rd party fan speed software on my iMac and it runs 5C-8C much cooler - compared to factory default. And, I'm not "over spinning" its internal fan speeds either. re: http://www.macupdate.com/app/mac/23049/smcfancontrol

--------------

I read a few times that Lion doesn't like Flash. As a suggestion, use Lion with Firfox Web Browsing application instead. If your iMac insides run cooler, then one odds are, it has something to do with Flash (in Safari).

.

 

[Spike88]

For more info about Apple computers, their internal heat and flash, surf entire thread at:

https://forums.macrumors.com/threads/1239572/

Hope this helps as well..

.

 

[Wreckie]

I am concerned aboit electricity usage. More heat at same fan RPM = more energy used for GPU. Before it was normal so it has something to do with software.