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EVGA 580 Backplate

post #1 of 11
Thread Starter 
Finally got around to installing these, as they were only $20 each... but here are the pics, and they look good... Unfortunately, they did not make a difference after a 10 minute 3dMark11 "stress test" as my temps still remain the same...
Now I really have no room inbetween my cards but the covers look really good...

One thing I did notice, are that my 580's are different... hard to see but the PCB's are different colors, air flow back plates are different, and one had all phillips head screws, while the other one had T6's (except 4 around the GPU)...
And I bought these approximately 4 months apart from MicroCenter...

Before...
450
After...
450


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Edited by Chris13002 - 2/22/12 at 8:20pm
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post #2 of 11
Looks pretty.

I thought this was a FS thread for a second.
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post #3 of 11
Thread Starter 
Quote:
Originally Posted by That Guy View Post

Looks pretty.
I thought this was a FS thread for a second.

haha, I was just looking for a thread like this with more pictures before I purchased them, so decided to make one myself...

I might be selling my entire rig once Keplar and Ivy Bridge decide to come out...
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post #4 of 11
How thick would you say the backplate is ??

I've got one of those galaxy 580's , and came stock with a "beefy" backplate [heavy duty]

450
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post #5 of 11
Thread Starter 
Quote:
Originally Posted by ChesterCat View Post

How thick would you say the backplate is ??
I've got one of those galaxy 580's , and came stock with a "beefy" backplate [heavy duty]

The plate itself is about 1mm thick... and adds about 1mm total to the card... Anymore, and I doubt i'll be able to SLI my setup...
In the pictures above, you can still see the motherboard in between the cards before I installed the back plates, but now cannot even with Macro shots...
Edited by Chris13002 - 2/22/12 at 8:41pm
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post #6 of 11
thanks for the reply

I really don't know if the "plate" actually aides in cooling.
Mine came stock so I gots no befores & afters.

One thing it does do, is stiffen the entire card and feel
it protects the naked board. Since it's not actually
"seated" onto the board......might explain why no temp diff
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post #7 of 11
It doesn't do anything except make your rig look better.

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post #8 of 11
Quote:
Originally Posted by Clairvoyant129 View Post

It doesn't do anything except make your rig look better.

This is the truth of the matter. Well worth the $20 each because they look really good though.
post #9 of 11

EVGA claims the GTX580 backplate has 2 features.

Quote:

Key Features

  • Transfers Heat From the Backside of the Card
  • Helps to Stabilize the Card

 

I think the heat transfer is achieved due to the thermal pads around the GPU core on the backside (see red arrow).

evga gtx580 backplate.JPG

 

I recall such a backplate + the high flow bracket help to lower the GTX480 temp by 3-4C.  So, the backplate's share for the much hotter GTX480 is probably 1-2C.  As a GTX580 is cooler than a GTX480, the help is around 1.5C?

 

For this thermal gain to be materialized, I think a good airflow must be blown over the backplate (especially near the square area) to facilitate heat transfer.

 

For the lower card:- the gap between becomes even narrower with the addition of the backplates.  So, the airflow into the gap is very small and will not bring up the small potential gain.

 

For the upper card:- there is a sound card in slot 1 directly above and it blocks off the square portion.  So, airflow is hard to reach that region.  Additionally, as the gap between the 2 cards becomes narrower, intake airflow for the top card should suffer.  This thermal disadvantage is likely to neutralize any thermal advantage potentially brought by the backplate.

 

To improve the thermal (especially of the top card), I suggest you moving the 120mm fan from its current position to about 2-3'' away.  And then, use hard construction paper or plastic to make a 'shroud' to channel more air into the tiny gap.

 

With the current setup, not only the gap is tiny but the fan's center line seems to align exactly with this gap.   As a result, very little air is able to go into the gap on its own because (1) air just seeks the path of least resistance and going into the gap is not the least resistance path and (2) the 'dead air' zone in that region in front of the fan, shown by the shaded orange in the pic below, is not supplying air with good velocity.

 

fan suggestion.JPG


Edited by windfire - 2/23/12 at 12:31am
post #10 of 11
Thread Starter 
Quote:
Originally Posted by windfire View Post

EVGA claims the GTX580 backplate has 2 features.

I think the heat transfer is achieved due to the thermal pads around the GPU core on the backside (see red arrow).

I recall such a backplate + the high flow bracket help to lower the GTX480 temp by 3-4C.  So, the backplate's share for the much hotter GTX480 is probably 1-2C.  As a GTX580 is cooler than a GTX480, the help is around 1.5C?

For this thermal gain to be materialized, I think a good airflow must be blown over the backplate (especially near the square area) to facilitate heat transfer.

For the lower card:- the gap between becomes even narrower with the addition of the backplates.  So, the airflow into the gap is very small and will not bring up the small potential gain.

For the upper card:- there is a sound card in slot 1 directly above and it blocks off the square portion.  So, airflow is hard to reach that region.  Additionally, as the gap between the 2 cards becomes narrower, intake airflow for the top card should suffer.  This thermal disadvantage is likely to neutralize any thermal advantage potentially brought by the backplate.

To improve the thermal (especially of the top card), I suggest you moving the 120mm fan from its current position to about 2-3'' away.  And then, use hard construction paper or plastic to make a 'shroud' to channel more air into the tiny gap.

With the current setup, not only the gap is tiny but the fan's center line seems to align exactly with this gap.   As a result, very little air is able to go into the gap on its own because (1) air just seeks the path of least resistance and going into the gap is not the least resistance path and (2) the 'dead air' zone in that region in front of the fan, shown by the shaded orange in the pic below, is not supplying air with good velocity.

Thanks for your expert advise as usual... +rep You definitely know more about my computer than I myself... smile.gif
I added more pictures here, to show you that I added two additional fans, side intake + another for the GPU's and completely understand what you mean by using the shroud to level the air better, but with the plastic fan plate made for that position, I think it will be difficult to move it back... Overall, I am about to just order a new case (Cooler Master Cosmos II)... I know it's expensive but solves all my current issues (wire management and MB+case making it impossible to have the GPU spacing where I want it)

450
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