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nvidia driver temp higher than actual?

D

doodman

n00b
Joined
Sep 3, 2004
Messages
51
Hi, I got a BFG Geforce 6800 GT and today I decided to run SpeedFan 4.15 to see if it reports the temperature so I can have it shown in my taskbar. To my great surprise, it DID work. Only problem, its showing it 10 degrees C below what is being reported in the driver panel. I do know it corresponds to the nvidia driver because the temperature reported is exactly 10 degrees below the driver panel as I run rthdribl_1_2. Can anyone else try this and confirm they have the same thing?
BTW, I did post a bug report to SpeedFan and they say what they are reporting is exactly what the sensors are reporting. As to which is the correct one, I don't really know but I do wish it was the SpeedFan.
 
doodman said:
Hi, I got a BFG Geforce 6800 GT and today I decided to run SpeedFan 4.15 to see if it reports the temperature so I can have it shown in my taskbar. To my great surprise, it DID work. Only problem, its showing it 10 degrees C below what is being reported in the driver panel. I do know it corresponds to the nvidia driver because the temperature reported is exactly 10 degrees below the driver panel as I run rthdribl_1_2. Can anyone else try this and confirm they have the same thing?
BTW, I did post a bug report to SpeedFan and they say what they are reporting is exactly what the sensors are reporting. As to which is the correct one, I don't really know but I do wish it was the SpeedFan.
Click to expand...

Interesting.....

Yes, I'm seeing the exact same thing. Speedfan is reporting the temp as 10C lower than the driver control panel (when running rthdribl, and at idle). I have wondered how accurate the thermal sensor on these cards are.
 
maybe they bump it to discourage people pushing it too far and cook anything.
 
joobjoob said:
maybe they bump it to discourage people pushing it too far and cook anything.
Click to expand...

I guess that's possible. Wonder if any of the X800 users could try this and see how accurate it is on the ATI side?
 
On my PNY 6800GT it's doing the same thing ( IF the right sensor to look at is the MAX6648 one that is).
I hope the speedfan one is right though because I have one of the hotter running cards (61-64c at idle). 51c would be awesome.
 
i watercool, water stays a very stable temp. ie excpet under load whatever the cpu is the gpu is. usually only afew degrees above room temp.

right now my gpu reads 41'c my cpu 32'c

so its quite likely thats exactly whats going on.
 
Hey any chance Kyle or one of the [H] team can get some temperature readers to test which one is the correct one?
 
I remember my fx5900 temp jumped about 10c with a driver update, cant remember which version. I wouldnt doubt that the driver panel adds 10 to the real temp.
 
Well I didn't say which one is correct either. I just wished it was speedfan. Thats why I'm hoping someone here can get some tests to see which one is more accurate.
 
Is it possible that the drivers are reading internal CPU temps...having a sensor stuck to the outside of the GPU is not the same thing...
 
I am also one who has a 6800GT that likes to idle at 60°C. Goes to 80°+ under load from rthidbl. Don't like the temps either. I have access to a thermal camera. I'll get some pictures of the top side of the card under load after I've had a chance to normalize the emissivity of the pcb. That should settle the temp question once and for all. I'll post them here when I've finished.
 
how do you turn this program off? everytime I cancel it the fans go to 100 percent speed. do you jsut uninstal it?
 
they could be both bit off.
u can always get 2nd temp detecter to check the accurate cpu or gpu temp.
some cases with lcd screen has temp sensor probe, n also some 5 1/4 panel devices like coolermaster musketeer, etc. u can place the probe on between hsf n card so even take the hsf off n place btw hsf n gpu.

i get 58-60c idel, 38-40c ambient accordin to nvidia display with 6800nu, upto 74c load when oc 400/900, used rivatuner to monitor temp during 3dmark.
 
The software that came with my Leadtek card, "WinFox," always reports the temperature 10c lower than the what nvidia's drivers report.

Which one is right, I don't know, but i'm leaning to the software that was made for the card. Especially since they allow you to overclock with their software, you'd think they'd want to make sure the temps were right, or even reporting too high than low.
 
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