Going "cold" Tonight GTX470

onefstsnake

Member

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Joined

Nov 20, 2007

Location

Fburg, VA

• Dec 1, 2011

• #1

Got my ghetto rigged semi-sub ambient apparatus installed and fired up.
GPU normally idles around 68*c with fan at 45%. It is now sitting at 16*c with 45% fan speed.

Parts list for said apparatus:
-3"x5' flexible duct
-roll of gorilla tape
-BFF (high cfm fan)
-fan extension

I used the box from the duct as a make shift reducer from the fan to the duct.
And here it is!

 

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Bobnova

Senior Member

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Joined

May 10, 2009

• Dec 1, 2011

• #2

Brilliant! I like the use of a Fan on the intake, that's key.

 

Seebs

Fronting as a Mod Member

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Joined

Aug 10, 2010

Location

Sunshine State

• Dec 1, 2011

• #3

My question is...
Why is there not a second contraption on the GPU side? Make a cardboard shroud for that side and make it a fully closed air duct. That way you minimize the waste of cold air and channel it all through the heatsink.

 

OP

onefstsnake

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Joined

Nov 20, 2007

Location

Fburg, VA

• Dec 1, 2011

• Thread Starter
• #4

Good idea! AH! Large BK plastic cup looks perfect!

 

bmwbaxter

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Joined

Jun 9, 2010

• Dec 1, 2011

• #5

nice! what is the outside temp?

 

OP

onefstsnake

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Joined

Nov 20, 2007

Location

Fburg, VA

• Dec 1, 2011

• Thread Starter
• #6

33*f currently

BK cup still in use by wife...

And HWBot is down... argh

 

OP

onefstsnake

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Joined

Nov 20, 2007

Location

Fburg, VA

• Dec 2, 2011

• Thread Starter
• #7

Well tonight went well. Got some nice clocks and scores.
Wouldnt run 900/1000 and kept crashing the whole rig. So not sure if I need more voltage or what.

Previous Heaven DX9 best:


New Best:


Previous Heaven DX11 best:


New Best:

 

W

Woomack

Benching Team Leader

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Joined

Jan 2, 2005

• Dec 2, 2011

• #8

You have to keep gpu at no more than 50*C under load to keep stability up to 900MHz. Above 900MHz it's like each 10MHz higher needs ~10*C less. Making it run @950MHz needed load temp near 20*C. If you are running it on cold air/water then you have to keep balance between voltage and temp for best results. 1.15V should let you make 900MHz , about 1.2V up to 950MHz what also depends from card quality and temps.
Without mods you wont pass 900MHz and you need at least ocp mod. Here you have my tutorial with info about mods.

 

OP

onefstsnake

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Joined

Nov 20, 2007

Location

Fburg, VA

• Dec 2, 2011

• Thread Starter
• #9

Awesome thanks for the info!

Managed a gold cup with my DX11 score!
http://hwbot.org/submission/2226485...reset_dx11_geforce_gtx_470_1499.26_dx11_marks

 

Last edited: Dec 2, 2011

W

Woomack

Benching Team Leader

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Joined

Jan 2, 2005

• Dec 2, 2011

• #10

Nice one , good luck with benching on this card ...
Now I noticed that I didn't even make 1 result in heaven/dx11 ... in dx9 I'm 5th on GTX470 -> http://hwbot.org/submission/1053262..._preset_dx9_geforce_gtx_470_3041.35_dx9_marks , result has over a year, need some updates but my only cpu available for oc is FX8120 so it can be hard ...