64GB RAM...40GB+ RAM "Unused"....Fan running almost constantly!...

[jman995x]

Hello,

I have an iMac that is relatively new.
I installed 64GB of RAM.
A lot of time I'll have anywhere from 30GB - 50GB of "Available" RAM....yet my iMac's Fan is working almost non-stop.

I can understand if I'm doing video editing, and have a whole bunch of RAM-intensive apps/processes running and thus have limited RAM, and really putting the computer through its paces...but with maybe 15-20 Chrome tabs open, and not much else...for the computer to be blowing more hot air than Congress makes no sense to me.

Is it just a matter of Chrome being a resource hog?

Thoughts? Things I can check when this happens?

 

[JDiggyDawg]

Hello,

I have an iMac that is relatively new.
I installed 64GB of RAM.
A lot of time I'll have anywhere from 30GB - 50GB of "Available" RAM....yet my iMac's Fan is working almost non-stop.

I can understand if I'm doing video editing, and have a whole bunch of RAM-intensive apps/processes running and thus have limited RAM, and really putting the computer through its paces...but with maybe 15-20 Chrome tabs open, and not much else...for the computer to be blowing more hot air than Congress makes no sense to me.

Is it just a matter of Chrome being a resource hog?

Thoughts? Things I can check when this happens?

Something to also take into consideration is the rest of your resources. Are the CPU and GPU maxing out during all this too? I would imagine one of those is probably the culprit.

 

[Tekguy0]

RAM should not cause the fan to run, it consumes relatively lower power and produces less heat. The culprit is probably the CPU and/or GPU.

 

[chabig]

I don't see any connection between RAM use and fan speed. When you're putting the CPU through its paces, it's generating heat, and the fans run to eliminate that. RAM doesn't really affect that. And yes...Chrome is probably a large reason why you're seeing what you're seeing.

 

[PBG4 Dude]

JavaScript interpreters can be huge CPU hogs. If you have 12 tabs open in chrome you may have lots of JavaScript interpretation running on those tabs.

 

[petsk]

Question is, what are you doing with 64GB of RAM if you don’t even know how to read activity monitor?

 

[pldelisle]

Question is, what are you doing with 64GB of RAM if you don’t even know how to read activity monitor?

This is awesome.