6950 (unlocked and clocked to a 6970) Temps

[Tekgun]

This is not one IT officer's opinion, this is a conclusion from empirical modeling. Why do we have traffic rules of speed limit? Why do we not have different speed limit rules for different small cars?

Speed limits are about safety, not about the longevity of the vehicle.
Are you seriously saying that no matter what type of materials are used in the manufacture of a graphics card that if you go over 70c then the lifespan of that card is reduced by 50%?

 

[therutz]

I take it some people in here disagree with Drifting then

Instead of telling him he is wrong why not just give your opinion of whats right and let him be

Reminds me of school when one kid got bullied cos he was differant in some way (a lot of this happens on this Forum i found since i joined)

Im not sayiing agree with him just give your reasoning to what YOU think is correct

Please dont start on me for this post

 

[drifting]

Speed limits are about safety, not about the longevity of the vehicle.
Are you seriously saying that no matter what type of materials are used in the manufacture of a graphics card that if you go over 70c then the lifespan of that card is reduced by 50%?

You should read the reference links I posted up there. If you cannot understand why this applies to both cheap cards and expensive cards, you could read more about Exponential Function, Exponentiation etc. Of course expensive cards might start with a longer MTBF than cheap cards, but what is wrong with my statement?

 

[drifting]

I take it some people in here disagree with Drifting then

Instead of telling him he is wrong why not just give your opinion of whats right and let him be

Reminds me of school when one kid got bullied cos he was differant in some way (a lot of this happens on this Forum i found since i joined)

Im not sayiing agree with him just give your reasoning to what YOU think is correct

Please dont start on me for this post

I'm fine indeed. 9 more posts to go and free shipping hopefully. I'm tired on this forum. I'll go back modding the graphics cards section on chiphell.

 

[Stanners]

Hi drifter, thanks for the links. I am in fact a electrical engineer, and from the links posted to wiki you have not shown menwhy my graphics card life will be shortened by running at a temp increase of ten degrees over seventy. If yO could give myself links to papers I would be vey interested. I am not interested in general electronic theory submitted to wiki. If you can not supply these no problem. This is not intended to trip you up or make you
Look a fool, I have a genuine interes in what you are stating as fact. Cheers mate

 

[therutz]

this is the worst site i have been on for people jumping on people if there opinion is differant from there's

I just think people should learn that manners are free and should learn to use them
EDIT: like stanners just did (nice and polite)

There are better ways to get there points across without attacks at some one else Only maximusmi2 had any real answer to say and did not attack you he just said he had never heard this etc and he thinks its not true But every one else starts hate bashing

 

[Tekgun]

this is the worst site i have been on for people jumping on people if there opinion is differant from there's

I just think people should learn that manners are free and should learn to use them
EDIT: like stanners just did (nice and polite)

There are better ways to get there points across without attacks at some one else Only maximusmi2 had any real answer to say and did not attack you he just said he had never heard this etc and he thinks its not true But every one else starts hate bashing

Please tell me where I have hate bashed exactly and I will apologize.

 

[drifting]

Hi drifter, thanks for the links. I am in fact a electrical engineer, and from the links posted to wiki you have not shown menwhy my graphics card life will be shortened by running at a temp increase of ten degrees over seventy. If yO could give myself links to papers I would be vey interested. I am not interested in general electronic theory submitted to wiki. If you can not supply these no problem. This is not intended to trip you up or make you
Look a fool, I have a genuine interes in what you are stating as fact. Cheers mate

That is np By looking into the first wiki page I listed, we have

and

We can see that the lifespan is reduced exponentially when temperature increases. This is true to a wider temperature interval, not merely 70C. I quoted 70C because it is a reasonable threshold for every IT officer I have talked to - how they manage their servers and clusters. The "50% every 10C" was from one of my friend doing EE. This serves a similar way as traffic rules of speed limit - when the speed of a vehicle is greater than 40mph or something, what percentage of ppl would die, while if the speed is less than 20mph instead, what percentage of ppl would die. These are all empirical modeling, and if you ask why, I'm not the authority. Unfortunately you'll have to look for the original papers yourself, because I'm not doing research in these areas and it takes time to do literature review you know.

 

[ThundyCat]

I'm fine indeed. 9 more posts to go and free shipping hopefully. I'm tired on this forum. I'll go back modding the graphics cards section on chiphell.

So why post here if all you want is free shipping?

 

[therutz]

Please tell me where I have hate bashed exactly and I will apologize.

sorry TeKgun i see you didnt bash him (to be fair i did not mention names of people who have bashed him) but there were some who have

I ment in general really , It happens on a lot of posts on this site, I feel that people just want to be'little people and have to jump on people to quickly

I do NOT understand the two post he put in his link but thats because it is WAY OVER MY HEAD the temanolagy etc but do understand that Heat kills the componants so the cooler the better,

 

[drifting]

So why post here if all you want is free shipping?

That is because I don't want to merely spam in the forum but instead at least bring something useful. However I don't think people would accept, probably because I still need to improve my English or something. Anyway, it's still good to know that people also attack a lot in forums in the UK. Not everyone is gentle. It's the same in China. Everyday as a moderator of the graphics cards section on chiphell I have to deal with forum attacks, warning and suspending users. It's at least better here in this forum.

 

[ThundyCat]

That is because I don't want to merely spam in the forum but instead at least bring something useful. However I don't think people would accept, probably because I still need to improve my English or something. Anyway, it's still good to know that people also attack a lot in forums in the UK. Not everyone is gentle. It's the same in China. Everyday as a moderator of the graphics cards section on chiphell I have to deal with forum attacks, warning and suspending users. It's at least better here in this forum.

If you have any issues then please RTM them.

 

[Stanners]

That is np By looking into the first wiki page I listed, we have

and

We can see that the lifespan is reduced exponentially when temperature increases. This is true to a wider temperature interval, not merely 70C. I quoted 70C because it is a reasonable threshold for every IT officer I have talked to - how they manage their servers and clusters. The "50% every 10C" was from one of my friend doing EE. This serves a similar way as traffic rules of speed limit - when the speed of a vehicle is greater than 40mph or something, what percentage of ppl would die, while if the speed is less than 20mph instead, what percentage of ppl would die. These are all empirical modeling, and if you ask why, I'm not the authority. Unfortunately you'll have to look for the original papers yourself, because I'm not doing research in these areas and it takes time to do literature review you know.

Sorry i may not of got across what i was asking very well. Have you anything specific about GPU's regarding the life cycle at temperature with the numbers you used in your first post (70 degrees). As what you are linking to is general theory. Now if a GPU is designed to run at say a temperature of (at load) between 60 - 95degrees this should have very little effect on the life cycle of the GPU and components as they are operating withing there threshold, based on a operating temp of 80 degrees. Now yes we all know if it runs at the lower end of the threshold the GPU was designed to run at it would maybe ,last a little longer but i just can not see it degrading by 50%. This is the bit i am interested in. Hope that clears it up a bit

 

[Tekgun]

sorry TeKgun i see you didnt bash him but there were some who have

I ment in general really , It happens on a lot of posts on this site, I feel that people just want to be'little people and have to jump on people to quickly

I do NOT understand the two post he put in his link but thats because it is WAY OVER MY HEAD the temanolagy etc but do understand that Heat kills the componants so the cooler the better,

Np, the information in the links is way over my head also but when I read drifters statement that "Every 10C above 70C reduce longevity of electronic components by 50%" as something I've never heard before It would be nice to get some clarification on, and I'm sure a lot of people with 480s would like to know as well.

 

[therutz]

If you have any issues then please RTM them.

?

Whats RTM mean (man im thick lol)

 

[Steves1982]

I won't state that I fully understand the linked articles as it's been a while since A-level Physics but I do get the general theory.

I do see the point that drifting was making now though I wasn't aware of it before although I'm not convinced with the 50% figure applying to GPU's.

However, strictly applying it to graphics cards (assuming the theory applies here) you would have to assume this is taken into account during the design stage of the cards. Companies wouldn't be offering 3 year warranties on them otherwise if they hadn't engineered them to last that long at those temps.

Therefore my advice to the op still stands and I wouldn't worry about temps unless you start getting over 95C and on auto fan settings that shouldn't happen.

 

[Emphacy]

Be fooled not, drifter is correct to some extent. The decay in electronic components is caused by temperature as stated in his reference links.

However, graphics cards such as reference cards are made of more high quality components in general and thus have a longer lifespan. Yes this process affects both cheap and expensive cards but does more so on cheaper components.

Having said that, this is only one of the many factors that affect electronics. It's not just heat that affects lifespan, it's voltage and the cards very manufacturing method.

It's the same for all electronics. The main reason cards fail after a longed period of time is not due to their components but due to their manufacturing method. In particular their solder. Thus baking your card in the oven will likely fix the issue.

 

[drifting]

Sorry i may not of got across what i was asking very well. Have you anything specific about GPU's regarding the life cycle at temperature with the numbers you used in your first post (70 degrees). As what you are linking to is general theory. Now if a GPU is designed to run at say a temperature of (at load) between 60 - 95degrees this should have very little effect on the life cycle of the GPU and components as they are operating withing there threshold, based on a operating temp of 80 degrees. Now yes we all know if it runs at the lower end of the threshold the GPU was designed to run at it would maybe ,last a little longer but i just can not see it degrading by 50%. This is the bit i am interested in. Hope that clears it up a bit

But general theory tells it: by looking into the equation of MTBF, when T increases, MTBF decreases exponentially. If you are asking for the specific data (by plugging in which data/values of parameters into the equation can we get 50% decrease of MTBF for every delta_T = 10C), no I don't have the links for now. Maybe next time I'd ask the guy to show me the title of the specific papers.

Let me give some assumptions here (not from real data):

If a high-end card like GTX480 can last 6 years at 80C, then it can last 3 years at 90C.
If a low-end card like HD5750 can last 6 years at 70C, then it can last 3 years at 80C.

Of course if both at 70C, then GTX480 would last 12 years, compared against the 6 years of HD5750.

 

[Tekgun]

I won't state that I fully understand the linked articles as it's been a while since A-level Physics but I do get the general theory.

I do see the point that drifting was making now though I wasn't aware of it before.

However, applying it to graphics cards you would have to assume this is taken into account during the design stage of the cards. Companies wouldn't be offering 3 year warranties on them otherwise if they hadn't engineered them to last that long at those temps.

Therefore my advice to the op still stands and I wouldn't worry about temps unless you start getting over 95C and on auto fan settings that shouldn't happen.

This is what I'm thinking as well, the statement seems to generalized and surely it depends on the quality of the materials and engineering used in the manufacture of the graphics cards. Not all components are created equal right? Is it not possible that some graphics cards can sustain higher temperatures without such a loss in lifespan?

 

[Tekgun]

But general theory tells it: by looking into the equation of MTBF, when T increases, MTBF decreases exponentially. If you are asking for the specific data (by plugging in which data/values of parameters into the equation can we get 50% decrease of MTBF for every delta_T = 10C), no I don't have the links for now. Maybe next time I'd ask the guy to show me the title of the specific papers.

Let me give some assumptions here (not from real data):

If a high-end card like GTX480 can last 6 years at 80C, then it can last 3 years at 90C.
If a low-end card like HD5750 can last 6 years at 70C, then it can last 3 years at 80C.

Of course if both at 70C, then GTX480 would last 12 years, compared against the 6 years of HD5750.

This helps to understand it a lot more