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iMac i7: Do I Need to Worry About These Temperatures?


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Hi. I just got my iMac i7 with 8GB runs in 64-bit mode and I'm using Temperature Monitor. Do I need to be concerned over these temps? There were two Safari windows running and just the Temperature Monitor were running. The top part of the Mac (near the DVD area. What on that part anyway? I can still touch it but why is it that hot?) is hot. Is this ok? Here are the temps (it's been running for a few hours), in Celsius. CPU is around 61 percent idle according to Activity Monitor:

 

Ambient Air: 30

CPU A Heatsink: 47

Graphics Processor Heatsink 1 65

Graphics Processor Temperature Diode: 67

Memory Controller: 53

Optical Drive: 48

Power Supply Position: 60

Smart Disk ST31000: 51

CPU Core 1: 48

CPU Core 3: 46

CPU Core 5: 51

CPU Core 7: 47

 

Thank you in advance. Gbu.

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At the back of the iMac are ventilation ports which emit hot air from the CPU & GPU fans. It's normal for that to be hot.

 

Those temperatures are absolutely fine, I'd only be concerned if they were more than 80-90 degrees celcius.

 

Enjoy your awesome Mac!

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Hi. I just got my iMac i7 with 8GB and I'm using Temperature Monitor. Do I need to be concerned over these temps? There were two Safari windows running and just the Temperature Monitor were running. The top part of the Mac (near the DVD area. What on that part anyway? I can still touch it but why is it that hot?) is hot. Is this ok? Here are the temps (it's been running for a few hours), in Celsius. CPU is around 61 percent idle according to Activity Monitor:

 

Ambient Air: 30

CPU A Heatsink: 47

Graphics Processor Heatsink 1 65

Graphics Processor Temperature Diode: 67

Memory Controller: 53

Optical Drive: 48

Power Supply Position: 60

Smart Disk ST31000: 51

CPU Core 1: 48

CPU Core 3: 46

CPU Core 5: 51

CPU Core 7: 47

 

Thank you in advance. Gbu.

 

Yeah those numbers are fairly normal. You're running a lot of power through that thing! It'll be hot! :(

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Hi. Thanks. Just an update. When under load (Crysis under Boot Camp which isn't bad at native resolution, medium settings) the hardisk is at 58 Celscius (ambient was at 35 Celscius). It's a Seagate drive. Will this fail soon or hard drives made for the iMacs (I assume it's exclusive because the model is not in Seagate's website)?

 

The hard drive is my main concern since the others parts (GPU, CPU, Power Supply and memory) I think could handle higher temperatures than the hard drive. Thanks in advance.

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  • 3 months later...
Hi. Thanks. Just an update. When under load (Crysis under Boot Camp which isn't bad at native resolution, medium settings) the hardisk is at 58 Celscius (ambient was at 35 Celscius). It's a Seagate drive. Will this fail soon or hard drives made for the iMacs (I assume it's exclusive because the model is not in Seagate's website)?

 

The hard drive is my main concern since the others parts (GPU, CPU, Power Supply and memory) I think could handle higher temperatures than the hard drive. Thanks in advance.

 

Yes this is a big concern and possibility, i lost 2 hard drives after having them reach 60 degrees for a couple weeks or months eventually the data will get corrupted and the drive malfunction.

 

While 50 to 55 degrees is ok for the hard drive, most hard drives vendors specify 60 as the absolute maximum, run it for long around that temperature and it will weaken from heat stress.

 

Your ambient temperature of 30 to 35 degrees is very high and 35 is the maximum specified by Apple (10-35 degrees C).

 

To increase the life of this machine use a tool to increase the speed of your fans and lower those temps, currently OSX will not increase the speed of the fans not even if the machine gets as hot to catch fire.

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