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 Post subject: How hot will you go...
PostPosted: Thu Mar 21, 2013 6:22 pm 
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Joined: Sun Jun 17, 2012 10:51 am
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Location: USA
How hot do y'all let your GPU get before letting the GPU's fan(s) be heard?

Personally, I keep my GPU's fan speeds below 45% (inaudible) until the GPU reaches 70C. At that point, the GPU fans bump up to 50% and can be slightly heard. From there, I bump up the % by 10 for every 5 degrees above 70C (so 60% for 75C, etc.).

Keep in mind, I'm not talking case fan speeds...just GPU fan(s).


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 Post subject: Re: How hot will you go...
PostPosted: Fri Mar 22, 2013 1:09 am 
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Joined: Fri Mar 14, 2008 5:18 am
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Location: London, UK
Cod wrote:
How hot do y'all let your GPU get before letting the GPU's fan(s) be heard?

Personally, I keep my GPU's fan speeds below 45% (inaudible) until the GPU reaches 70C. At that point, the GPU fans bump up to 50% and can be slightly heard. From there, I bump up the % by 10 for every 5 degrees above 70C (so 60% for 75C, etc.).

Keep in mind, I'm not talking case fan speeds...just GPU fan(s).
I think that would strongly depend on the cooling system and your card.


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 Post subject: Re: How hot will you go...
PostPosted: Fri Mar 22, 2013 2:09 am 
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Joined: Mon Mar 17, 2008 1:49 pm
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Location: UK
0rpm all of the way. :D

Clearly your fan curve isn't working most effectively if you have to bump up by another 10% for each 5C. If the extra 10% was sufficient, it wouldn't get another 5C hotter and have another increase in fan speed.

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 Post subject: Re: How hot will you go...
PostPosted: Fri Mar 22, 2013 4:55 am 
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Joined: Sun Jan 23, 2005 11:44 pm
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Forgive me if i sound dumb :lol: but isn't that the idea of a curve ?
That it goes up as it gets hotter until the fan is spinning just fast enough to keep the card from down clocking or crashing ?

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 Post subject: Re: How hot will you go...
PostPosted: Fri Mar 22, 2013 6:07 am 
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As long as it's under 90 C then as silent as possible.

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 Post subject: Re: How hot will you go...
PostPosted: Fri Mar 22, 2013 9:34 pm 
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kuzzia wrote:
As long as it's under 90 C then as silent as possible.

That's the kind of answer I was looking for. I get nervous when my GPU gets above 70C, which is why I let the fans be heard at that point.


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 Post subject: Re: How hot will you go...
PostPosted: Sat Mar 23, 2013 2:40 am 
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Spoon Boy wrote:
Forgive me if i sound dumb :lol: but isn't that the idea of a curve ?

Technically this isn't a curve, it's a straight line. :wink:

kuzzia wrote:
As long as it's under 90 C then as silent as possible.

This depends on card. I've had some which only give artefacts at 115C and others that give artefacts as low as 80C. I think some more modern cards are more fragile and will be damaged with no previous artefacts or underclocking to protect them.

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 Post subject: Re: How hot will you go...
PostPosted: Sat Mar 23, 2013 7:15 am 
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edh wrote:
Technically this isn't a curve, it's a straight line. :wink:


Well technically all curves are straight lines if you get close enough :lol:

edh wrote:
This depends on card. I've had some which only give artefacts at 115C and others that give artefacts as low as 80C. I think some more modern cards are more fragile and will be damaged with no previous artefacts or underclocking to protect them.


All cards onward from Nvidia 500 series and AMD 6000 series now have built in power regulator circuitry as well as the ability to down clock when things get to hot.

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 Post subject: Re: How hot will you go...
PostPosted: Sat Mar 23, 2013 10:47 am 
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Spoon Boy wrote:
Well technically all curves are straight lines if you get close enough :lol:

They might be apprantly staight lines but they are in reality curves. A curve can never be a straight line.

Spoon Boy wrote:
All cards onward from Nvidia 500 series and AMD 6000 series now have built in power regulator circuitry as well as the ability to down clock when things get to hot.

A little longer than that actually, it's been in Geforce cards since Geforce FX although some lower end cards without temperature monitoring exclude this as do some cards with certain BIOS settings.

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 Post subject: Re: How hot will you go...
PostPosted: Sat Mar 23, 2013 11:07 am 
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edh wrote:
They might be apprantly staight lines but they are in reality curves. A curve can never be a straight line.


My head just popped like a balloon when i read that :P

edh wrote:
A little longer than that actually, it's been in Geforce cards since Geforce FX although some lower end cards without temperature monitoring exclude this as do some cards with certain BIOS settings.


Load of card before the Nvidia 500 series and AMD 6000 could underclock, but AFAIK its only from the Nvidia 500 series and AMD 6000 that included the power regulatory circuitry.

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