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Topic Title: The logged effect of a GPU heat shield
Topic Summary: I got teh numb3rs
Created On: 07/17/2009 12:15 AM
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 07/17/2009 12:15 AM
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Immortal Lobster
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Alright, I took this idea from guru, to whom I gave the concept, or so I think it's the way of train of thought went.

He took some foil and tape, I took it a step further. Plexiglass, I'll get pictures of it at another date, not finished yet, gonna throw some lights into it, make it all spiffy.

But the semi-final product:

==Layer of plexiglass on top==
-- Layer of folded in x-direction aluminum foil--
-- Layer of filded in y-direction aluminum foil
== Layer of electrical tape on bottom ==
Two supporting triangles, with cross drilled holes to allow horizontal flow.


In the image below displaying the changes, I ask that you not look at the temperatures, as they are for the most part unchanged, still lost ~2°C across the board. INSTEAD, look at the fan rpms, the CPU fan was able to idle at 131rpm less (10%) than without the shield, the exhaust fan came down 206rpm, (10%), and the intake (power supply) came down 118rpm (10%).

That's a 10% reduction in fan effort!!! that equates to a 10% reduction in noise...well, maybe, and 10% added back to sanity. the figures by the way are based on average speed and temperaure readings, not max, besides, even for average, the shrouded solution was running faster longer, albeit at the same voltage. even at max records of values, there is still a reduction.

All for the cost of:
$3.99 for the plexi-glass (I used GE Lexan)
$0.02 for aluminum foil
$0.05 for electrical tape
$0.10 for super glue
----------------------------

$4.16


I plan on adding about $5 in decoration, and I'll post pics hwen it's complete.


Thanks to Guru for idea and concept, thanks to self for train of thought.


Anyway, thought I'd share



Click -- I hate fusetalk and it's killing of thumbnails!!!!

Method of test:
1) Shut down PC until cool, ~20 minutes
2) Boot up, once windows loaded, load 3Dmark Vantage
3) Load Everest to begin logging
4) Begin Vantage benchmark
5) When bench complete begin Everest stability test, all CPU and memory bound tests
6) After 10 minutes elapsed, stop stability test
7) Stop Everest logging
8) Examine Log

Provided 20 minute sample

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The opinions expressed above do not represent those of Advanced Micro Devices or any of their affiliates.


Edited: 07/17/2009 at 12:22 AM by Immortal Lobster
 07/17/2009 01:30 AM
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PC-GURU -
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tight

your temp drops are kinda close to mine, with in 1 to 2c. I dont see a NB temp listed in your pics, that's where I seen the most dramatic temp drops from.

-------------------------
AMD phenom II 1090T @ 4.23 Ghz custom water cooled
Asrock 890 FX deluxe 3 mother board
4 GB DDR 3 1600 @ 1688 Mhz 7 7 7 24 T1 2688 Mhz NB
2x 1 TB WD Sata III 64 mb cache HDD,s raid 0
2x 5870 HD @ 1015/1300 Asus reference
Dual OS win 7 x64 ultimate & win 7 x32 Ultimate (bench os)
 07/17/2009 10:06 AM
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Immortal Lobster
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like I said, the biggest difference I had is the fan rpms, as I'm making heavy use of pwm.

the northbridge is about the same, gained a half degree, but I still need to do some more wire remanagement, as the shield pushes 4 cables against the NB heat sink.

got an email from my potential future employer with a no, so the time I was hoping to have again, is now poof back in the air.

but I'll finish this project.

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The opinions expressed above do not represent those of Advanced Micro Devices or any of their affiliates.
 08/12/2009 03:59 PM
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Immortal Lobster
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Well....spent some more time on it, now all I have to do is get some rubber pads for the base, affix a screw mount to it so I can attach it to the rear of my case, then rewire my case using this thisng, I have to do a rewire anyway since I replaced my PSUs with one.

http://img.photobucket.com/alb.../tcoil/P1010081-1.jpg


http://img.photobucket.com/albums/v105/tcoil/P1010082-1.jpg


http://img.photobucket.com/albums/v105/tcoil/P1010093-1.jpg


http://img.photobucket.com/albums/v105/tcoil/P1010094-1.jpg


http://img.photobucket.com/albums/v105/tcoil/P1010097-1.jpg


http://img.photobucket.com/albums/v105/tcoil/P1010098-1.jpg



Why can't fusetalk do thumbnails!!!!!!!!!!?!?!?!?!?!?!

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The opinions expressed above do not represent those of Advanced Micro Devices or any of their affiliates.


Edited: 08/12/2009 at 04:14 PM by Immortal Lobster
 08/12/2009 09:58 PM
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B-Shot
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Looks pretty neat, good work, now make a thousand and sell them on ebay while your waiting on your job lol.

So when you gonna etch in a logo? lol
 08/12/2009 11:05 PM
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Immortal Lobster
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It crossed my mind to attempt to etch in my lobster, lol.

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 08/14/2009 12:11 AM
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PorscheRacer14
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Looks cool! Where is the heatshield mounted in the case and at what orientation? Keep us posted! I was going to use engine heatshielding for sound deadening and heat transferring/reflection in my custom case build next year, so I'm really curious about this....

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 08/14/2009 12:44 AM
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Immortal Lobster
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It rests right on top of the GPU

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 08/14/2009 01:16 AM
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PC-GURU -
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still like my red neck version more lol JK.

Nice work man.

-------------------------
AMD phenom II 1090T @ 4.23 Ghz custom water cooled
Asrock 890 FX deluxe 3 mother board
4 GB DDR 3 1600 @ 1688 Mhz 7 7 7 24 T1 2688 Mhz NB
2x 1 TB WD Sata III 64 mb cache HDD,s raid 0
2x 5870 HD @ 1015/1300 Asus reference
Dual OS win 7 x64 ultimate & win 7 x32 Ultimate (bench os)
 08/14/2009 03:04 AM
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Immortal Lobster
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Joined: 01/26/2005

flip it upside down and it looks very similar.

Mark II I'll get two sheets of Lexan, and encase the foil, then use epoxy to seal the foil in, the electrical tape is a mess. lol

I also have a small length of EL wire from an old lighted IDE cable, I'm going to attempt to use it to trace the blue line in my lobster, and encase that into the lexan as well. but these are long term plans.

What do you think people would pay for those?

Lobster Tech, Cooling for the money pincers!

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The opinions expressed above do not represent those of Advanced Micro Devices or any of their affiliates.
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