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7900GS with a GTX bios temperature readings - correct?

post #1 of 10
1/3/08 at 6:21pm
Thread Starter 
Hi, i know this issue's been discussed here somewhere but cant find it.

Im using the Juan Lu bioses on my Inspiron and with 7900GS bios with a voltmod the temps were coming up to 91C (the clocks were 520/750 more or less). And then i decided to flash it with a gtx bios with a volt mod - and it works! It lets me overclock a little higher (like 580/750, but it seems that its not very stable though...) and the temps are a lot lower! 69-73C. I once saw it go up to 86C, but thats that. Also the idle temps went down from 63C to 54C. So my question is - is this real? This is a huge difference, video bios can do that? Or mayby... somethings mixed up with the sensors and theyre not giving the correct temps?
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post #2 of 10
1/3/08 at 8:16pm
well the gs and gtx mobile cards are almost Identiical. the difference being a few cut pipelines and a different bios with different clocks

and the chances are the heatsensors are identical as well, as using one type of heatsensor is more economical than a different one for each different card

Maybe the GTX bios is more suited to 1.24V than the GS bios
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post #3 of 10
1/4/08 at 1:36am
mine runs cooler too, maxxes out at about 72c, at 600/750 and idles at about 47c
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post #4 of 10
1/4/08 at 12:45pm
Thread Starter 
And is it stable? I run mine 580/750 but after a couple of hours i get artifacts and crashes. And what do you use to OC? ATItool?
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post #5 of 10
1/4/08 at 10:13pm
Quote:
Originally Posted by tandaradei View Post
And is it stable? I run mine 580/750 but after a couple of hours i get artifacts and crashes. And what do you use to OC? ATItool?
I use Rivatuner not that it matters
Maybe your artifact problem is related to heat dissipation
is fans and heatsink clean?
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post #6 of 10
1/5/08 at 6:17pm
Thread Starter 
hm, dont know. How often are you supposed to clean them?
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post #7 of 10
1/5/08 at 6:39pm
There probably is something messed up with the sensor readings - I'm pretty sure one of those cards needs an 8 degree temperature offset, and if you notice 54(gtx bios) + 8 = 62 which almost equals your GS bios temperatures.
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post #8 of 10
1/5/08 at 9:50pm
I clean the fans about once every 6 months, in which the temp would rise from 44C to about 55C and thats without any overclocks
I know people that cleans there laptop more often, but its pretty tedious removing some 30 screws.
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post #9 of 10
1/6/08 at 8:43am
Thread Starter 
Ill give it a try.
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post #10 of 10
1/6/08 at 8:46am
Thread Starter 
Quote:
Originally Posted by wonnage View Post
There probably is something messed up with the sensor readings - I'm pretty sure one of those cards needs an 8 degree temperature offset, and if you notice 54(gtx bios) + 8 = 62 which almost equals your GS bios temperatures.
Well, I have that 8 degree offset on. Otherwise the temps in IK8FANGUI are always more or less 8C lower then in ATItool.
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