7800gt temp issue.

[imported_charlie]

hi.
recently discovered i might have a heat issue with my card.

when i played oblivion the temp went up to 82 celsius.
is 82 celsius dangerously high or safe ?

its a leadtek card with stock cooling, without any overclock it went up to 80celsius.
the fan works no doubt about it sounded like a 747 taking off inside my case when it reaches 80+ and thats how i discovered the heat issue.
so i have a couple of questions

1.
is 82 celsius alarmingly high or safe ?

2.
at which temperature does burnmarks start to occur ?

3.
what is the maximum operating temperature of the G70gt core ?

4.
the store claimed they can check if the card has been overclocked and even the specific frequency, is it true or not ?

before someone starts questioning the airflow in the case, its almost as good as it possibly can get.
the temp lowers 1celsius or less with the side off and a 150+cfm tablefan blowing into the case.

Regards
Charlie

 

[josh6079]

1) 82 is too high for a non-overclocked 7800.

2) If they haven't already, don't try to find out.

3) Obviously yours was still operating at 82C, but still, don't try to find out.

4) You can check the frequencies yourself through coolbits, why have a store do it for you?

I would check your heatsink and fan. If it is the stock one, you might need to blow out some dust or something that may have clogged up some air flow exiting from the back of the card. Those fins sometimes got pretty thick depending on how bad the dust in your house can get. (I live in Kansas, you know, the dust bowl state....yeah, dust can get kind of bad here).

I'm surprised you didn't have artifacting issues or something.

 

[imported_charlie]

Originally posted by: josh6079
4) You can check the frequencies yourself through coolbits, why have a store do it for you?

when i bought the card i did some overclocking and benchmarking and if the store can se that they will refuse any warranty claims
thats why i need to know its possible, even if i doubt it.
never heard of it before.

I would check your heatsink and fan. If it is the stock one, you might need to blow out some dust or something that may have clogged up some air flow exiting from the back of the card. Those fins sometimes got pretty thick depending on how bad the dust in your house can get. (I live in Kansas, you know, the dust bowl state....yeah, dust can get kind of bad here).

no artifact even in oblivion at 82 celsius and no i will not remove the heatsink as it voids warranty and its the stores business to do that and i can not afford a decent card at the moment if it goes wrong.
dust i seriosly doubt it is as i recently cleaned out my case of dust.
and i also tried with a 150+cfm tablefan to rule out any ventilation issue.

well dust could get bad over here too, until i got me a cat which eats all the "rats"

 

[josh6079]

no artifact even in oblivion at 82 celsius and no i will not remove the heatsink as it voids warranty and its the stores business to do that and i can not afford a decent card at the moment if it goes wrong.

I wasn't saying you should take the heatsink off, just take out the card and look into the slots.

As long as you make sure the freqencies have been set back to their original specs, it should be okay. Is the store going to just look at the card and throw it in one of their computers to look at it, or are they going to look at your whole computer? Sounds like the store doesn't know what a good warranty is. I know the EVGA warranties (and just the company itself) is freakin awesome. If they're going to really investigate if you've overclocked it or not, the only thing I could see showing evidence is maybe some system restore point in windows at which time you had it overclocked. That or maybe something in the bios in which case you could flash it again to the same, original bios and be okay.

I seriously doubt they mean any of these things though. But if you're really worried, just unistall the display driver and then reinstall it. That should wipe out coolbits if you've already added it and make everything look like you just installed it after taking it out of the box.

As far as your weird temps go, maybe you just got one that didn't get good enough thermal paste placed on the core between the heatsink. Of course, I don't know what overclockings you did do. What was the most you ever got?

 

[imported_charlie]

they will only look at the card, they have nothing to do with the computer.

the bios has to my knowledge never been changed.
the only possibility was when i tried to unlock pips and shaders with rivatuner.
other than that i used nvidia control panel to overclock.

the highest overclocking i had was 471mhz, 71 over stock.
the temp differs less than 2 celsius between overlocked and stock.

i reread the latest mail from the store and they say its the manufacture that can check if the card has been overclocked but sounds......weird.
taking in all defective cards would cost leadtek a fortune even with all they can find have invalidated the warranty.

thanks for asnwering anyway

 

[josh6079]

Whoa, you tried to unlock pipes in Rivatuner? The 7800GT isn't like the 6800 series where there were unlockable pipes. The 7800GT is the GT because the 7800GTX had 24 pipes. The 7800GT has 20 and those other four that its GPU is supposed to have were laser cut off--you can't unlock them. Are you sure you didn't do anything wrong when tampering with those, I mean, I got my 7800's to like 535 and 1200 and I never did anything with that part of Rivatuner.

 

[imported_charlie]

Originally posted by: josh6079
you can't unlock them. Are you sure you didn't do anything wrong when tampering with those, I mean, I got my 7800's to like 535 and 1200 and I never did anything with that part of Rivatuner.

i know that, now :/ but i remember changing back the settings i change back then so doubt thats the reaon of the high temp.

473/1190 is about the highest stable i have managed and it suggest i can have had the high temp from the beginning.
most cards seem to max out at around 65celsius from what i seen and an almost 20celsius tempdrop would give more overclock room.

 

[DerwenArtos12]

I tried to unlock the pipes in mine as well because there were a very very very few that were able to unlock right when the 7800gt was released, also in riva tuner and it has never negatively affected performance or temperatures, i think I even still have it set to be a 24+8 card however from performance I know it's only running 20+7. I would have to guess you have a defective card because with the stock EVGA cooler I was running overclocks beyond what you have and now that I have an aftermarket heatsink I have gone WAY beyond stock clocks, you either have a defective card or a defective HSF, IMHO.

 

[imported_charlie]

my guess is its probably to little thermal paste on the card.