GPU diode too hot??

kel101 · 12-24-2007, 12:34 PM

Im looking at istat, and its saying that my gpu diode is at 72 degrees C, This seems pretty high, or is it normal, I was running a game a few minutes ago, but it is a football manager game, so it isnt very graphic intensive. If its too hot what can I use to cool it down?

ThreeDee · 12-24-2007, 01:13 PM

I did a quick google search. The 'normal' temperature depends on the model card. Some people seem to be saying that 72° is OK, while other are saying it's too hot. I don't know anything about GPU 'normal' temperatures.

Make sure there's no dust on the card or it's heatsink/fan.

kel101 · 12-24-2007, 01:21 PM

how can i, i have an imac, and i dont really want to open it up, looks way too hard

iMovieStar · 12-24-2007, 01:41 PM

Vacuum your intake vents.

kel101 · 12-24-2007, 02:30 PM

is that the thing at the back? And wont that damage something (I have a dyson

)

cwtnospam · 12-24-2007, 02:43 PM

Use the brush attachment, and don't stay in one spot. Those Dyson's really, er, vacuum well.

kel101 · 12-24-2007, 02:50 PM

umm im not to familiar with my attachments

you mean this 1?

And just to make sure I'm meant to hoover the thing behind the silver stand, above the security slot, not the hot bit at the top?

iMovieStar · 12-24-2007, 04:34 PM

On the iMac I would assume the intake vents are on the underside of the bottom of the screen.

kel101 · 12-24-2007, 04:40 PM

hmm, now i have no idea where to do it, i thought the bottom of the screen was just where the ram was, there is a vent of some sort on the back or should i just do both?

Foibles · 12-24-2007, 04:57 PM

You can try smcfancontrol to raise the fan speeds. I run mine at 3x stock speed and can barely hear it. About 3000 rpm

iMovieStar · 12-24-2007, 06:30 PM

I would suggest trying to clear the intake vents if they are blocked first before anything else. No sense in increasing fan speed if your imac cant suck in more air.

Foibles · 12-24-2007, 06:33 PM

I recently replaced my HD and at the same time vacuumed out all of the dust that was in there. There was quite a bit that I couldn't get to without taking it apart. It brought the temps down a few degrees.

cwtnospam · 12-24-2007, 06:35 PM

If you read the manual for replacing the lower fan, you'll see where you should vacuum if it's a 17" iMac. A 20" might be different, but I don't see a manual for the lower fan on that model. The upper fan blows air out through the slot you see in the back, so it wouldn't hurt to vacuum that too.

kel101 · 12-25-2007, 02:37 PM

ok, I did that, but i think i need some compressed air to get some more dust out, Its running a few degrees cooler, but still pretty hot

cwtnospam · 12-25-2007, 02:39 PM

As Foibles indicated, it may be necessary to at least remove the back in order to get at some of the areas that might be clogged.

kel101 · 12-25-2007, 03:51 PM

ok.. how do i take the back off?

kel101 · 12-25-2007, 03:58 PM

Woah thats looks way too risky http://home.comcast.net/~woojo/DFFA5...sassembly.html

cwtnospam · 12-25-2007, 04:00 PM

It's three screws:
http://manuals.info.apple.com/en/ima..._BackCover.pdf

kel101 · 12-25-2007, 04:02 PM

thats a g5, not an intel, the bottom is different, there are other screws apart from the memory ones, but they need some special screw driver

cwtnospam · 12-25-2007, 04:22 PM

Sorry! I guess I shouldn't have just looked at the picture.

12-24-2007, 12:34 PM	#1
kel101 MVP Join Date: Nov 2006 Location: Manchester Posts: 1,906	GPU diode too hot?? Im looking at istat, and its saying that my gpu diode is at 72 degrees C, This seems pretty high, or is it normal, I was running a game a few minutes ago, but it is a football manager game, so it isnt very graphic intensive. If its too hot what can I use to cool it down? __________________ 27" imac 3.4ghz i7 16gb Ram 1TB HD GTX680 Mx imac core duo 1.83ghz: OS X 10.6.8, 2gb ram, 1Tb internal

12-24-2007, 01:13 PM	#2
ThreeDee Hall of Famer Join Date: Aug 2005 Location: USA Posts: 3,418	I did a quick google search. The 'normal' temperature depends on the model card. Some people seem to be saying that 72° is OK, while other are saying it's too hot. I don't know anything about GPU 'normal' temperatures. Make sure there's no dust on the card or it's heatsink/fan. __________________ 15" MacBook Pro (Mid 2010), 2.4 GHz Core i5, 10.6.5, 4GB RAM PowerMac G4 "Quicksilver", 733 MHz, 10.4.11, 1.5GB RAM iPod Touch 5G, 32GB, iOS 6.1.3 Last edited by ThreeDee; 12-24-2007 at 01:16 PM.

12-24-2007, 01:21 PM	#3
kel101 MVP Join Date: Nov 2006 Location: Manchester Posts: 1,906	how can i, i have an imac, and i dont really want to open it up, looks way too hard __________________ 27" imac 3.4ghz i7 16gb Ram 1TB HD GTX680 Mx imac core duo 1.83ghz: OS X 10.6.8, 2gb ram, 1Tb internal

12-24-2007, 02:30 PM	#5
kel101 MVP Join Date: Nov 2006 Location: Manchester Posts: 1,906	is that the thing at the back? And wont that damage something (I have a dyson) __________________ 27" imac 3.4ghz i7 16gb Ram 1TB HD GTX680 Mx imac core duo 1.83ghz: OS X 10.6.8, 2gb ram, 1Tb internal

12-24-2007, 02:50 PM	#7
kel101 MVP Join Date: Nov 2006 Location: Manchester Posts: 1,906	umm im not to familiar with my attachments you mean this 1? And just to make sure I'm meant to hoover the thing behind the silver stand, above the security slot, not the hot bit at the top? __________________ 27" imac 3.4ghz i7 16gb Ram 1TB HD GTX680 Mx imac core duo 1.83ghz: OS X 10.6.8, 2gb ram, 1Tb internal Last edited by kel101; 12-24-2007 at 04:27 PM.

12-24-2007, 01:41 PM	#4
iMovieStar Triple-A Player Join Date: Nov 2007 Location: Hawaii Posts: 97	Vacuum your intake vents.

12-24-2007, 02:43 PM	#6
cwtnospam League Commissioner Join Date: Jan 2005 Posts: 8,475	Use the brush attachment, and don't stay in one spot. Those Dyson's really, er, vacuum well.

12-24-2007, 04:34 PM	#8
iMovieStar Triple-A Player Join Date: Nov 2007 Location: Hawaii Posts: 97	On the iMac I would assume the intake vents are on the underside of the bottom of the screen.

12-24-2007, 04:40 PM	#9
kel101 MVP Join Date: Nov 2006 Location: Manchester Posts: 1,906	hmm, now i have no idea where to do it, i thought the bottom of the screen was just where the ram was, there is a vent of some sort on the back or should i just do both? __________________ 27" imac 3.4ghz i7 16gb Ram 1TB HD GTX680 Mx imac core duo 1.83ghz: OS X 10.6.8, 2gb ram, 1Tb internal

12-24-2007, 04:57 PM	#10
Foibles Triple-A Player Join Date: Sep 2006 Posts: 119	You can try smcfancontrol to raise the fan speeds. I run mine at 3x stock speed and can barely hear it. About 3000 rpm __________________ iMac 17" Intel Core 2 Duo 2.0 GHz 500GB HD 3GB of RAM MacBook Pro 15" Intel Core 2 Duo 2.2 GHz Tiger 10.4.8 Black iPod Video 30 GB NAD 304 Stereo Amplifier

12-24-2007, 06:30 PM	#11
iMovieStar Triple-A Player Join Date: Nov 2007 Location: Hawaii Posts: 97	I would suggest trying to clear the intake vents if they are blocked first before anything else. No sense in increasing fan speed if your imac cant suck in more air.

12-24-2007, 06:33 PM	#12
Foibles Triple-A Player Join Date: Sep 2006 Posts: 119	I recently replaced my HD and at the same time vacuumed out all of the dust that was in there. There was quite a bit that I couldn't get to without taking it apart. It brought the temps down a few degrees. __________________ iMac 17" Intel Core 2 Duo 2.0 GHz 500GB HD 3GB of RAM MacBook Pro 15" Intel Core 2 Duo 2.2 GHz Tiger 10.4.8 Black iPod Video 30 GB NAD 304 Stereo Amplifier

12-24-2007, 06:35 PM	#13
cwtnospam League Commissioner Join Date: Jan 2005 Posts: 8,475	If you read the manual for replacing the lower fan, you'll see where you should vacuum if it's a 17" iMac. A 20" might be different, but I don't see a manual for the lower fan on that model. The upper fan blows air out through the slot you see in the back, so it wouldn't hurt to vacuum that too.

12-25-2007, 02:37 PM	#14
kel101 MVP Join Date: Nov 2006 Location: Manchester Posts: 1,906	ok, I did that, but i think i need some compressed air to get some more dust out, Its running a few degrees cooler, but still pretty hot __________________ 27" imac 3.4ghz i7 16gb Ram 1TB HD GTX680 Mx imac core duo 1.83ghz: OS X 10.6.8, 2gb ram, 1Tb internal

12-25-2007, 02:39 PM	#15
cwtnospam League Commissioner Join Date: Jan 2005 Posts: 8,475	As Foibles indicated, it may be necessary to at least remove the back in order to get at some of the areas that might be clogged.

12-25-2007, 03:51 PM	#16
kel101 MVP Join Date: Nov 2006 Location: Manchester Posts: 1,906	ok.. how do i take the back off? __________________ 27" imac 3.4ghz i7 16gb Ram 1TB HD GTX680 Mx imac core duo 1.83ghz: OS X 10.6.8, 2gb ram, 1Tb internal

12-25-2007, 03:58 PM	#17
kel101 MVP Join Date: Nov 2006 Location: Manchester Posts: 1,906	Woah thats looks way too risky http://home.comcast.net/~woojo/DFFA5...sassembly.html __________________ 27" imac 3.4ghz i7 16gb Ram 1TB HD GTX680 Mx imac core duo 1.83ghz: OS X 10.6.8, 2gb ram, 1Tb internal

12-25-2007, 04:00 PM	#18
cwtnospam League Commissioner Join Date: Jan 2005 Posts: 8,475	It's three screws: http://manuals.info.apple.com/en/ima..._BackCover.pdf

12-25-2007, 04:02 PM	#19
kel101 MVP Join Date: Nov 2006 Location: Manchester Posts: 1,906	thats a g5, not an intel, the bottom is different, there are other screws apart from the memory ones, but they need some special screw driver __________________ 27" imac 3.4ghz i7 16gb Ram 1TB HD GTX680 Mx imac core duo 1.83ghz: OS X 10.6.8, 2gb ram, 1Tb internal Last edited by kel101; 12-25-2007 at 04:05 PM.

12-25-2007, 04:22 PM	#20
cwtnospam League Commissioner Join Date: Jan 2005 Posts: 8,475	Sorry! I guess I shouldn't have just looked at the picture.

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