Should Speedfan temp reading be trusted on older gear?

[Hardtailed]

On this computer I assembled from old part, I'm getting an "AUX" temperature of 120C!!!

I have no idea what it is. Computer runs fine, CPU and board temp are perfect. I'm afraid it might be the GPU (old Radeon 7500 with tiny whiny fan).
But that hot? I would see some artifacts on the screen right?

So I though... maybe it's just a wrong reading.

Board: Asus P5P800
CPU: P4 630
RAM: Kingston KVR 2X512MB DDR400
HD: WD 250gb Caviar SE
GPU: ATI Radeon 7500

[burebista]

On this computer I assembled from old part, I'm getting an "AUX" temperature of 120C!!!

From SpeedFan FAQ:

As a final note, please remember that not all available temperature sensors are actually connected to something. If you happen to read unusually high or low temps, they are likely to be from a disconnected (unused) temperature sensor.

So, relax.

[Bluefront]

Yeah...that 120C reading is the default when Speedfan has some trouble reading a sensor. Disable that sensor in the "configure" screen, since it will never mean anything, even if the reading changes...

[merlin]

On this computer I assembled from old part, I'm getting an "AUX" temperature of 120C!!!

I have no idea what it is. Computer runs fine, CPU and board temp are perfect. I'm afraid it might be the GPU (old Radeon 7500 with tiny whiny fan).
But that hot? I would see some artifacts on the screen right?

So I though... maybe it's just a wrong reading.

Board: Asus P5P800
CPU: P4 630
RAM: Kingston KVR 2X512MB DDR400
HD: WD 250gb Caviar SE
GPU: ATI Radeon 7500

What I love right now is that speedfan is detecting my fan rpm's at 450000 and 650000 on my new p35 board. I wonder if that would beat a jet engine for noise level... So ya it's not perfect, there's plenty of data speedfan cannot read correctly.

[Das_Saunamies]

Speedfan can't read correctly... or is reported as such in the first place?

[Charuto]

Can anyone tell me what it means when one of the temperature readings in speedfan fluctuates wildly all the time? Temp1 on my computer goes from -3 to 24 to 46 etc etc every couple of seconds.