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eVGA GTX 580 backplate, $20 for hotter temps? - Page 2

post #11 of 43
According to EVGA, the 2 key features of this back plate are:
-Transfers Heat From the Backside of the Card
-Helps to Stabilize the Card
(link:http://www.evga.com/products/moreinf...0Hardware&sw=4)

So, the primary purpose is to make the card cooler and to provide additional support. Extra protection to the circuit board is not even mentioned but, of course, is nice to have.

I do not have this back plate but by looking through the Installation pdf file, I bet those padding around the GPU does act as thermal transfer material (and in addition, to act as buffer to prevent crushing as you said).

And, I reckon the cooling benefit should be more apparent under load. Its effect during idle is probably minimum (1C?).
Edited by windfire - 12/20/10 at 5:49pm
post #12 of 43
Thread Starter 
Quote:
Originally Posted by grunion View Post
Maybe you're not getting the same amount of torque with the bp installed.
I tried to be just as slow and firm with tightening the screws. They only go so far and stop before you can tell the will strip. I also installed and uninstalled the screws corner to corner, a little bit each at a time to remove/apply pressure evenly during installation/removal.
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post #13 of 43
Quote:
Originally Posted by VirtualJockey View Post
I tried to be just as slow and firm with tightening the screws. They only go so far and stop before you can tell the will strip. I also installed and uninstalled the screws corner to corner, a little bit each at a time to remove/apply pressure evenly during installation/removal.
Did you install the 4 orange screws first? (as shown in the Installation pdf file)
post #14 of 43
Thread Starter 
Quote:
Originally Posted by windfire View Post
According to EVGA, the 2 key features of this back plate are:
-Transfers Heat From the Backside of the Card
-Helps to Stabilize the Card
(link:http://www.evga.com/products/moreinf...0Hardware&sw=4)

So, the primary purpose is to make the card cooler and to provide additional support. Extra protection to the circuit board is not even mentioned but, of course, is nice to have.

I do not have this back plate but by looking through the Installation pdf file, I bet those padding around the GPU does act as thermal transfer material (and in addition, to act as buffer to prevent crushing as you said).

And, I reckon the cooling benefit should be more apparent under load. Its effect during idle is probably minimum (1C?).
I tested stock idle, stock load, OC idle, OC load.
Twice on and off.

If the temps were at least the exact same, I would keep the backplate for added protection and since it also looks nice. But... negatory on the thermal support.
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post #15 of 43
Thread Starter 
Quote:
Originally Posted by windfire View Post
Did you install the 4 orange screws first? (as shown in the Installation pdf file)
Yes.
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post #16 of 43
Is 1c really anything to get exercised over? I'd keep it purely from a visual standpoint.

But that aside, what exactly are you measuring? Temp of the CPU core or temp of the PCB? I don't see why it would do anything to help the CPU core.
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post #17 of 43
Thread Starter 
Quote:
Originally Posted by matrices View Post
Is 1c really anything to get exercised over? I'd keep it purely from a visual standpoint.

But that aside, what exactly are you measuring? Temp of the CPU core or temp of the PCB? I don't see why it would do anything to help the CPU core.
Just going by GPU core temps, shown in both Afterburner and HWMonitor.

I didn't have the intention of paying $20 to make my temps 1 degree hotter for the sake of bling. I bought the backplate for cooling, which I guess was my mistake.

Maybe a 1 degree diff is no big deal, but I wouldn't have paid $20 for that. Not for 1 degree worse.
Edited by VirtualJockey - 12/20/10 at 6:04pm
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post #18 of 43
Quote:
Originally Posted by matrices View Post
Is 1c really anything to get exercised over? I'd keep it purely from a visual standpoint.

But that aside, what exactly are you measuring? Temp of the CPU core or temp of the PCB? I don't see why it would do anything to help the CPU core.
it is if thats the reason you bought the back plate. if i spent money on a product that was advertised to decrease gpu temps, and in fact it did the opposite, id be a little bit p.o.'d

to the op: if it were me, id try to return it for a full refund. other wise you just paid 20 bucks for something that was purley cosmetic.
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post #19 of 43
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Quote:
Originally Posted by AliceInChains View Post
to the op: if it were me, id try to return it for a full refund. other wise you just paid 20 bucks for something that was purley cosmetic.
I'll call eVGA tomorrow. If they won't take it back, I'll just take a hit and sell it on eBay. I expected only a minor decrease in temps, maybe 3 or 4 degrees. In my wildest dreams I didn't expect it to make the card run hotter, even if just by a solid 1 degree.
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post #20 of 43
I think I might have an explanation for this unusual outcome:
Your GTX580 is Sparkle GTX580 which has special cooling (ie those 3 giant purple fans). Those fans blow air down through the heatsink and the hot air is exhausted all around.

Now, the EVGA back plate has a lip curls around the top, going from the SLI connectors almost all the way to the back of the connectors. Now, this length of lip just blocks some of the escape path of the exhausting hot air, thus negating all the benefit of the back plate cooling.
Edit #1: ie some of the red arrows in the pic below is blocked off

Sounds reasonable?

If this is the case, the question to ask is: is 1C worse worth the extran protection and the cool-looking factor?

Edited by windfire - 12/20/10 at 6:17pm
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