Any way to get around nvidia's temp sensor slowing down a OC?

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superHARD

Diamond Member
Jul 24, 2003
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Subject just about says it all.

Any way to get around nvidia's temp sensor slowing down a OC?

If card matters it is a gainward 5900 with the 5950 bios on it.

super
 
Soulkeeper

Soulkeeper

Diamond Member
Nov 23, 2001
6,731
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This guy
this guy claims that he solved his thermal throttling problems by flashing his 5900 to a 5950

but it looks like you already did that
others claim that it is the driver reading from the on-die temp sensor
and that they lower the speed somewhere around 100c (sounds high to me)

i suggest looking through your registry for "thermal" or "throttle"
and see if you can't just edit out what ever is doing this with a registry hack

i'll keep looking for ya

good luck

btw if all else fails adding better cooling may become your only option
 
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PCTweaker5

Banned
Jun 5, 2003
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How do you know when it gets slowed down? Does game performance just get slow or do the clock settings stay lowered after you quit the game?
 
Soulkeeper

Soulkeeper

Diamond Member
Nov 23, 2001
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This other guy
this guy shows benchmarks at various speeds and how it affected his 3dmark scores
few more people with the same problem popped up with a google search
but after reading maybe 10 or so reviews/forums i didn't see anyone who has solved this problem in any other way than just using better cooling

it probably throttles at about 60c which would be resonable
assuming that these gpu's put off about as many watts as cpu's these days, i would suggest at a minimum applying new thermal compound and placing an 80mm fan to blow on the card

it's hard to find good gpu heatsinks these days
most of them are cheesy aluminum with low power fans
they also usually have little holes through them, which sucks


good luck
 
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superHARD

Diamond Member
Jul 24, 2003
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Originally posted by: PCTweaker5
How do you know when it gets slowed down? Does game performance just get slow or do the clock settings stay lowered after you quit the game?
Click to expand...

My 3DMark gets worse the more I OC.

I will search the registry when I get home.
On a side note what is a good cooler for a 5900? The cooler is for ram, and gpu so not a normal cooler will work.

Thanks guys for your help!!
 
Keysplayr

Keysplayr

Elite Member
Jan 16, 2003
21,209
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Every GPU core is different. Your card will get different results than other cards. Yours will o/c higher than some, but not as high as some others. Your core temps also vary. Depends on the yield I supposed. Back down on your o/c until you acheive your best results. Bad news is, if there was anything wrong with the card in the first place, you forfeitted your warranty and cannot RMA becuase you flashed it. It would be fraud. Anyways, just try to find the sweet spot for your card. Maybe it cant handle 5950 speeds and runs really hot. You might just try to flash back to your original bios and try o/cing that way.

Oh, did you remove the factory hsf to try to put an aftermarket cooler on there? If so, make sure the contact between hs and core is good. Use thermal grease conservatively because too much is sometimes worse than having none.
 
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superHARD

Diamond Member
Jul 24, 2003
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No I have not removed the stock cooler...what cooler is good for a 5900?

Is it worth removing the stock cooler to remove stock grease and put as3 or 5 on there?

Nathan
 
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Acanthus

Lifer
Aug 28, 2001
19,915
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ostif.org
Originally posted by: superHARD
No I have not removed the stock cooler...what cooler is good for a 5900?

Is it worth removing the stock cooler to remove stock grease and put as3 or 5 on there?

Nathan
Click to expand...

You might see a mild temp decrease but nothing serious from AS5. Upgrading the heatsink is prettymuch the only way to go.
 
Keysplayr

Keysplayr

Elite Member
Jan 16, 2003
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Originally posted by: Acanthus
Originally posted by: superHARD
No I have not removed the stock cooler...what cooler is good for a 5900?

Is it worth removing the stock cooler to remove stock grease and put as3 or 5 on there?

Nathan
Click to expand...

You might see a mild temp decrease but nothing serious from AS5. Upgrading the heatsink is prettymuch the only way to go.
Click to expand...

Agreed!

 
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nRollo

Banned
Jan 11, 2002
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Any way to get around nvidia's temp sensor slowing down a OC?
Click to expand...

So the card slows itself down to avoid damage from your running it above spec, and you want to disable that so you can damage the card. I see.

Perhaps a better question here would be "How can I avoid hitting the temp nVidia has deemed dangerous to my card while maintaining my OCd speeds?"?

You might try a slot fan next to it or behind it, you could cut a hole in your case next to it and either pull in cooler air or blow out hotter air, you could put a Zalman with additional fan on it, you could water cool, etc..
 
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PCTweaker5

Banned
Jun 5, 2003
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The best aftermarket cooler I would recommend would be the Thermaltake Giant III. Im thinking of getting it myself since it seems like the perfect application for me to push this card some more. My ram and core are cooled by one solid piece and even though it is copper I think thta seriously affects how well it is being cooled since the heat from the GPU is also mixing with the heat from the ram therefore making it hotter. The Tt GIII comes with 8 long copper ramsinks and I think even though I have 16 ram chips on mine they will be able to cover all the chips and cool it greatly. I think this HSF could seriously put some OC potential on cards such as ours and even though it costs $35 I think it would be a good investment.
 
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superHARD

Diamond Member
Jul 24, 2003
7,828
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Originally posted by: PCTweaker5
The best aftermarket cooler I would recommend would be the Thermaltake Giant III. Im thinking of getting it myself since it seems like the perfect application for me to push this card some more. My ram and core are cooled by one solid piece and even though it is copper I think thta seriously affects how well it is being cooled since the heat from the GPU is also mixing with the heat from the ram therefore making it hotter. The Tt GIII comes with 8 long copper ramsinks and I think even though I have 16 ram chips on mine they will be able to cover all the chips and cool it greatly. I think this HSF could seriously put some OC potential on cards such as ours and even though it costs $35 I think it would be a good investment.
Click to expand...

Where?
 
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superHARD

Diamond Member
Jul 24, 2003
7,828
1
0
Originally posted by: PCTweaker5
The best aftermarket cooler I would recommend would be the Thermaltake Giant III. Im thinking of getting it myself since it seems like the perfect application for me to push this card some more. My ram and core are cooled by one solid piece and even though it is copper I think thta seriously affects how well it is being cooled since the heat from the GPU is also mixing with the heat from the ram therefore making it hotter. The Tt GIII comes with 8 long copper ramsinks and I think even though I have 16 ram chips on mine they will be able to cover all the chips and cool it greatly. I think this HSF could seriously put some OC potential on cards such as ours and even though it costs $35 I think it would be a good investment.
Click to expand...

So I guess you don't OC anything above stock voltage? How about upping agp voltage and ddr voltage in a normal OC?
 
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THUGSROOK

Elite Member
Feb 3, 2001
11,847
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i have a BFG FX5900.

i use a thermaltake gf4 copper cooler on it. (yea it fits perfectly with the pushpins)
the stock TT 11cfm fan wasnt too great tho.
i swapped out the "fan" for a TT golden orb 21cfm fan (simple bolt in), and it dropped my gpu temps by 10*C. (realtime monitoring)

i put some BGA ramsinks on the mem ~ works fine.

i dont think there is anything else on the market worth buying.

HTH :)
 
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aka1nas

Diamond Member
Aug 30, 2001
4,335
1
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I have a gainward 5900nu also and I do get the same problem when overclocking, though until reading this thread I didn't quite get what was causing it. The stock heatsink om my gainward is already pretty big and has 2 fans so I guess maybe better cooling is the only option. Thanks for the thread guys as now I have an idea why my card doesn't seem to be appear to be a good overclocker at all.

After reading the article someone posted, I was wondering if the original poster that flashed his 5900 to a 5950 has VIVO on his card and if so, doe sit still work after?
 
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Tango57

Senior member
Feb 22, 2004
311
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Originally posted by: PCTweaker5
How do you know when it gets slowed down? Does game performance just get slow or do the clock settings stay lowered after you quit the game?
Click to expand...

when i overclock too high and start playing games, my leadtek 5900 ultra memory clock settings go back to default but it can keep my core clock up to 500 mhz. on my system is doesn't really slow down but i do start to get artifacts in-game. i think the way to get around that is either to flash the bios or as soulkeeper mentioned try to cool the card down even further. i'm thinking about getting something like this to blow on my card. Spectrum UV Fan Card :D
 
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