HD6950: LOCATION of temperature sensors?

[cmarino3]

Hello,

how many temperature sensors does the 6950 have? I tried researching on the Internet but couldn't find the actual number and location.

The reason I'm asking is because I just found out that GPU-Z comes up with THREE different temperatures + 1 V.Reg.temperatura, and what worries me is that one of the three is SIGNIFICANTLY higher than the others!

http://img202.imageshack.us/img202/8276/gpuzsensors.jpg (http://imageshack.us/photo/my-images/202/gpuzsensors.jpg/)

(as you can see, usually over 20° hotter!

Since my 6950 is modded (I removed the noisy stock fan and replaced it with a "fanless" Accelero S1 rev2.0, with added fans), I used to keep an eye on the Speedfan's "GPU" value (which was usually ok), but didn't know there were other sensors to check!

Can anybody tell me all the GPU-Z readings are accurate, and if they belong to ACTUAL hardware sensors on the board? For example...: where is the "voltage regulator temperature" sensor??? Are they embedded in some bigger chips?

Thank you!

[EarthDog]

Its quite common to see these differences... they are measuring different areas, Voltage regulators, core... etc. Should be accurate.

[cmarino3]

Its quite common to see these differences... they are measuring different areas, Voltage regulators, core... etc. Should be accurate.

Yes, but temp #2 goes well beyond 100C°.... There must be something wrong, or some "hot" part of the board that I haven't covered when i modded the stock cooler.
Somebody said #1 #2 and #3 are: GPU, shaders, memory, in this order.
Is it true?

[Neuromancer]

Sounds like an AMD Vreg temp to me. Dunno why it says vreg temp way down there running cooler than anything else.

I fixed it on my 4890 by repasting and adjusting my stock heatsink. (took 3 seatings to get it to work right).

[cmarino3]

Uhm, i don't think it's the voltage regulators temp, as all the v.regulators are covered (6 chips to the right + 1 to the left of the GPU) with heatsinks, and they are all barely warm to the touch while I get 100C° on that #2 sensor.

I just found out that those #1, #2 and #3 temps all are DTS sensors in the GPU silicon itself.
Temp 1 is shader cores.
Temp2 is Mem I/O
Temp 3 is Display I/O.

I think I need to repaste and reseat my "custom" Accelero S1 heatsink, it's so tiny and flexible and i've always had the feeling that it was't seated properly...

[Neuromancer]

Let us know if that sorts it out for you.