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Sli on mATX - Page 2

post #11 of 19
@thread
Quote:
bottom card backplate = even more limited space for the top card to intake air. (the bottom card backplate almost covers the top cards intake)

So by "backplate" you mean the metal surround for the DVI/HDMI/VGA connectors? Or do you mean the heatsink shroud?



What do you call the "backplate"?
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post #12 of 19
Quote:
Originally Posted by parityboy View Post

@thread
So by "backplate" you mean the metal surround for the DVI/HDMI/VGA connectors? Or do you mean the heatsink shroud?



What do you call the "backplate"?

......
http://www.evga.com/Products/Product.aspx?pn=M021-00-000008
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post #13 of 19
@IronMan

eVGA servers seem to be down. Can you provide an explanation instead?


EDIT:

OK, they're up again. So that backplate covers the back of the card's circuit board?
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post #14 of 19
Quote:
Originally Posted by maneil99 View Post

I dont get how a backplate is bad?

Here is a visual aide for you. Note how close together these cards are in the photo - it's literally 1/8" between the back plate and the next card above it, which in turn leaves very little room for air flow into the fans. The bottom card will stay cool, but the middle and top one will roast from convective heat and lack of airflow. It was so bad in my case, even with forced air from side panel fans, that I decided to remove my third GTX-680 and go with 2-way SLI. Temps are 15-20 degrees cooler under load now at the same fan speed.

Just to be clear, a "backplate" is a piece of sheet aluminum that's literally screwed onto the back of the card. The purpose of the plate is three-fold.

1) Aesthetics

2) Protection for surface-mount components on the back of the board (e.g. cards that are handled frequently, prevents surface mount diodes and resistors from being accidentally knocked off)

3) Provides some cooling for RAM chips on the back of the board, if present.


Greg

p.s. I'm not going to ask why you have a mATX board in that giant HAF 912 case.


Edited by hammong - 3/29/13 at 8:10am
post #15 of 19
Quote:
Originally Posted by parityboy View Post

@IronMan

eVGA servers seem to be down. Can you provide an explanation instead?


EDIT:

OK, they're up again. So that backplate covers the back of the card's circuit board?

yes, a back plate covers the exposed PCB
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post #16 of 19
back plates are kind of useless you want to keep the heat in. I once modded an old north bride heat sink, stuck some thermal pads on it and affixed it to the back of the gpu, literally the back of the GPU, it actually lets off heat.
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post #17 of 19
get a case with good side fans, e.g. the silverstone sg09, it will help so much.
post #18 of 19
Thread Starter 
Would it just be better to get a 690 and sell a 680, if so how much should i look to sell it for? So basically what you guys are saying is I will not be able to Sli on a matx board even in a mid tower case?
post #19 of 19
you'll get it to work in an SG09/10 if you have three side fans
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