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90 Celcius overclock.


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#1
georgewashington16

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I decided to use the ATI tool to auto-clock my HD3850 graphics card. While I was doing this the core clock increased from 669Mhz to 759Mhz and the Memmory Clock went from 829Mhz to 1094Mhz. With these increases the temp was at 90 degrees celcius. I was wondering if this is too hot, It was at 90 for about 6 minutes before my computer crashed.
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#2
pip22

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Well there's your answer. if it didn't crash at the stock speed then you've overdone it and the extra heat is too much. My advice is set it back the way it was.
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#3
Titan8990

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That is a very high OC for a video card.
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#4
georgewashington16

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I just played Crysis with this overclock and it ran smoothly with everything on high at 1024*768. It didn't crash either and suprisingly the temp continued to stay under 90 degrees Celcius.
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#5
stettybet0

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With that much of an overclock and a 90C temp, you can expect your video card to die very soon. You need to overclock in baby steps, and test the stability with ATITool's artifact scanning feature. In fact, since you have an ATI card, ATITool may be able to automatically find the highest stable overclock for you.

You will also want to increase the fan speed if your card is running that hot. Try looking in the Catalyst drivers for a way to do that, and if there is none, try RivaTuner.
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#6
Rocknrollcows

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Keep in mind that 90C is 194C which is 94degrees ABOVE water's boiling point.


This is not only bad for your Card, it is also bad for all the other components in your computer.

With such high temps on your card, the ambient temperature should be at least 40C (which is still boiling)



ATITOOL's autoclocker is really bad (IMO) they have a history of going WAY beyond your card's limits.
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#7
stettybet0

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Keep in mind that 90C is 194C which is 94degrees ABOVE water's boiling point.


This is not only bad for your Card, it is also bad for all the other components in your computer.

With such high temps on your card, the ambient temperature should be at least 40C (which is still boiling)



ATITOOL's autoclocker is really bad (IMO) they have a history of going WAY beyond your card's limits.

Eh? This entire post is from another dimension! How do you convert Celsius to Celsius and gain 104 degrees? Water boils at 100C. Therefore 90C is 10C less than the boiling point of water. Not that water has anything to do with this, as graphics cards aren't made of water!

Also, ATITool's auto overclocker is actually very accurate and perhaps even a bit conservative. It stops the overclock and goes back down a notch in speeds if it detects even the slightest artifacting and ATITool's artifact scanner is more susceptible to artifacting than your average game.
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#8
Rocknrollcows

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Wow..

I should really stop posting when i'm half asleep... I don't even remember that post O.o
and from the looks of the time to that post, i prolly was asleep (took a nap at 2:00ish)

~~~

It's just my personal experience's with ATItool.

Edited by Rocknrollcows, 30 March 2008 - 07:40 PM.

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#9
stettybet0

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Wow..

I should really stop posting when i'm half asleep... I don't even remember that post O.o
and from the looks of the time to that post, i prolly was asleep (took a nap at 2:00ish)

~~~

It's just my personal experience's with ATItool.

I don't think you should stop... That was one of the few times I've actually laughed out loud (:)) from something I've read on here. :)

As for ATITool, perhaps you used an older version, because with the latest beta it works as I've described and therefore it wouldn't work as you've described. :) But what did you use it on, because ATITool auto overclocker doesn't work with the G92 cards from NVIDIA (such as the 8800GT)...

Edited by stettybet0, 30 March 2008 - 09:06 PM.

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#10
Rocknrollcows

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ATITool auto overclocker doesn't work with the G92 cards from NVIDIA (such as the 8800GT)...


No wonder it went all the way up to 900mhz and crashed.......
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#11
georgewashington16

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Okay thanks guys.
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