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SLI GTX 480: Thermal Images (idle/load) -- Updated

post #1 of 26
Thread Starter 
I decided to take some pictures of my rig w/ a thermal imaging camera. I'll upload them here for anyone that's interested.


The camera is set to a low temperature threshold of 20C, and a high temperature threshold of 80C. My CPU is at sig clocks (2500k 4.4ghz @ 2.2V1.22V), and my 480's are at stock clocks.

This is what i looks like after sitting idle for 10 or so minutes:
450

And here is load (simultaneous prime/furmark for 3 minutes):
450

I noticed that aluminum will play tricks on FLIR; instead of showing an accurate image, it's more reflective, like a mirror ('cause trust me, those heat pipes get F'n HOT).


Here's the system under the usual visual spectrum:
700

UPDATED: Here are some updated pictures showing the top of the PCB (and my new 600t).

Idle:
450

Load:
450

Shot of the updated system under the usual visual spectrum:
700
Edited by FlighterPilot - 5/24/12 at 9:43pm
post #2 of 26
sweet. really goes to show how hard the gpu sinks have to work. i notice your cpu hs is running mighty cool through
    
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post #3 of 26
oooh me likey biggrin.gif
    
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post #4 of 26

Three comments:-

 

1) I wonder if your camera is off calibration?

Your pics and these pics present a drastic difference in temp.

 

Single GTX480 idle at 57.8C

gtx480_temperature_idle.jpg

 

 

Single GTX480

gtx480 single.png

 

 

 

GTX480 SLI

gtx480 sli.png

 

(Pic source:- http://www.behardware.com/articles/747-1/report-graphics-cards-and-thermal-characteristics.html)

 

2) Perhaps you can also report the GPU temp by software like Afterburner or GPU-Z.

 

3) Nice clean rig.  Good cable management.  Lovely V8.


Edited by windfire - 2/23/12 at 11:44pm
post #5 of 26
I would leave off the thermal camera, it looks coooler. biggrin.gif On a serious note. Nice pics.
post #6 of 26
change psu cooler facing down you are throwing air to the video card
post #7 of 26
Thread Starter 
Quote:
Originally Posted by windfire View Post

Three comments:-

1) I wonder if your camera is off calibration?
Your pics and these pics present a drastic difference in temp.


(Pic source:- http://www.behardware.com/articles/747-1/report-graphics-cards-and-thermal-characteristics.html)

2) Perhaps you can also report the GPU temp by software like Afterburner or GPU-Z.

3) Nice clean rig.  Good cable management.  Lovely V8.

The top/bottom cards were at 96C/91C at the time of exposure (cpu cores around 65C), but yeah, that is quite a difference. I'll have to tinker with it when I get back to work. Though, I do expect it just being a difference in thermal camera models.
Quote:
Originally Posted by PontiacGTX View Post

change psu cooler facing down you are throwing air to the video card

It's true, I decided on positioning my PSU up because of my rig being on carpet, but in retrospect, even that would be better than sucking the hell-breeze coming off those 480's.
post #8 of 26
Awesome Pics!! I know how hot those GTX480's can get, I used to run a pair in SLI then decided to sell one as I could play all my games fine with one saving a TON on the power bill! thumb.gif I've said it before...... Nvidia named that model right..... FERMI.... a mini reactor in your rig! haha biggrin.gif

Nice-looking rig, BTW... Very clean. Uh, one thing, did you "have" to get a white supply?
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post #9 of 26
Thread Starter 
Quote:
Originally Posted by hollywood406 View Post

Awesome Pics!! I know how hot those GTX480's can get, I used to run a pair in SLI then decided to sell one as I could play all my games fine with one saving a TON on the power bill! thumb.gif I've said it before...... Nvidia named that model right..... FERMI.... a mini reactor in your rig! haha biggrin.gif
Nice-looking rig, BTW... Very clean. Uh, one thing, did you "have" to get a white supply?

I hear you with the power consumption. I was on a watt meter while running the test; 820W under load!
and with a GPU overclock, nearly 870W...

To be fair though, while gaming it's more like 560W, and idle is 170W.

As for the PSU,
the egg was having a sale on NZXT products, and I figured, "850w gold, and it'll match the rest of my stuff.. sure, why not."

but it's true, the thing is very white lol
post #10 of 26
And this is why reference heatsinks suck. Neither one of my non-reference GTX 470's (in SLI) have gone above 70C in any load environment (minus Furmark). Single GTX 470 was loading at 65C max most of the time, hit 72C under furmark by itself with 0 fan ramp up. If only NVIDIA would spend a few extra bucks per GPU to have a better heatsink design, or just add a second fan to the reference like a lot of non-reference cards (MSI, ASUS, Gigabyte).
    
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