RX480 VIN0 reads impossible voltages

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Grafitter

Commendable
Apr 4, 2016
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Hey everyone !

Three weeks ago i bought the new RX480 from Asus Strix, since it's a pretty powerful gpu i decided not to overclock or change anything in it's settings. Later on i bought a new cooler for my cpu and i wanted to check what are the temperatures so i installed OCCT for cpu stressing.
Here is what i got after an hour of benchmarking
VBCwO7N.jpg


As you can see the cooler is probably fine but what I found out is that VIN0 which is a sensor on my gpu (if i am not mistaken) reads voltages in thousands Volts.

My build:

CPU: A8-7670k
PSU: Chieftec 650w cft
GPU: Asus Strix RX 480
Mobo: ASRock FM2A88M Extreme4+

Thanks for your time !
 
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M
No need to worry i have a Sapphire RX 480 Nitro OC...... Same thing... reading impossible voltages just like you. Reads 0.58v and odd glitch will read like 2000000 something...... i seen it in OCCT, CPUID HM and Open HM.... and no one knows what this sensor is ether...
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nooneisback

nooneisback

Distinguished
Jun 14, 2014
555
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You only provided one image, we don't really know if it constantly hops between them or if it's wrong just at a point. There always were problems with sensors, for example some AMD CPUs' temps are wrong in programs like HWMonitor, while they are correct in programs made by AMD (you had to look at the margin).
 
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Barty1884

Barty1884

Retired Moderator
Apr 16, 2015
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Definitely seems like a sensor issue. The fact 'max' shows the ridiculous voltage, means at some point, the voltage was 'read' at that high number.

Obviously that voltage is impossible.

I would recommend starting over - note your min/max when you first open the program (where you should see the idle temps/voltages) and then start a stress test. Pay attention for that first couple of seconds or so, if there was going to be a false reading, it's likely to happen when things 'ramp up' to 100% use.

It's not a solution at all, but at least you can then understand when it's happening.

As you linked, it doesn't appear to be unique to your card. AMD do measure their temps 'backwards' via Thermal Margin (for CPUs at least) which doesn't always work with non-AMD monitoring programs, but I've never seen such a blatantly false piece of info being reported.

As an FYI, I wouldn't run an RX480 from a 650W Chieftec.
 
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madhawa101

Commendable
Dec 11, 2016
1
0
1,520
No need to worry i have a Sapphire RX 480 Nitro OC...... Same thing... reading impossible voltages just like you. Reads 0.58v and odd glitch will read like 2000000 something...... i seen it in OCCT, CPUID HM and Open HM.... and no one knows what this sensor is ether...
 
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