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@Devs What is "GPU Temperature (Hot Spot)" on RX Vega?

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#1
I guess the title already says it. I would like to know from which sensor exactly that data is being pulled from.
 
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#2
I directed my question directly to the devs in order to avoid getting distracting answers. I know you meant nothing but good but to be honest pointing me to Guru3D didn't help at all, as this is a question only the programmer of GPU-Z can answer. He is the one who picked the sensor with his own code after all..
 

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#3
It's a sensor inside the GPU silicon. Probably (going by the name9 at a location where it gets hottest. That's all I know.

You also asked about HBM temperature location in a post that's now deleted due to cleanup. No idea again. The card gives me a sensor "HBM temperature" that's all I know
 
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#4
He's not the only one who knows what it means. It was implemented by AMD. All he did was make it so his program shows the data reported by it. Frankly, as he's not a GPU designer/engineer, I'd be pretty surprised if he knew anything at all about it. It was rather stupid in my view for the "who-the-hell-ever-he-is" guy over at AMD to suggest you ask the dev of GPU-Z to explain how/what/where/why AMD designs the temperature sensors on their GPUs. And rather smart for you to reply "But isn't this temperature value something that is provided by the card's firmware?". Since it's pretty obvious that's the case.

He just replied as I was typing this. Good to know I wasn't wrong about that.
 
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#5
Thanks for your replies then. I was asking that particular person on the AMD forums as hes the only one from the staff i know who at least answers when mentioned in a post. I guess I'll just nag them until they provide an answer lol.
 
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#6
He's not the only one who knows what it means. It was implemented by AMD. All he did was make it so his program shows the data reported by it. Frankly, as he's not a GPU designer/engineer, I'd be pretty surprised if he knew anything at all about it. It was rather stupid in my view for the "who-the-hell-ever-he-is" guy over at AMD to suggest you ask the dev of GPU-Z to explain how/what/where/why AMD designs the temperature sensors on their GPUs. And rather smart for you to reply "But isn't this temperature value something that is provided by the card's firmware?". Since it's pretty obvious that's the case.

He just replied as I was typing this. Good to know I wasn't wrong about that.
I believe W1zzard knows more than you think, I believe he use to work for ATI back in the day.;)
 
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#7
I believe W1zzard knows more than you think, I believe he use to work for ATI back in the day.;)
Oh I know he knows his stuff. And most certainly a lot more than I know. I was just guessing he wouldn't know about this particular feature on Vega. Which, to the best of my knowledge, is entirely new and only found on Vega. And hasn't been mentioned in any documentation(that I've seen). So unless he actually worked on it(which I figured I'd have heard about if he did)...it just didn't seem likely he'd know any more than the rest of us. Which is nothing...yet.
 
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#8

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#9

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#10
he wouldn't know about this particular feature on Vega. Which, to the best of my knowledge, is entirely new and only found on Vega.
which feature?
 
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#11
AMD GCN silicon gets hot very quick, and by my experience in most generations of MAD GPUs starting from 5xxx all the way up to RX 4xx and 5xx, max temps go all the way up to 90C if not in a proper ventilated case and room temp.
Most good cooled AMD cards rely on ambient temp, good case and added fans to work in good temps.
Mine doesn't go above 70C with 4 extra fans in case, and air conditioning in room on a cool 23C in summer, in winter no need for air conditioning, just open a window.
TJ max would be 100C by my exp, but optimal temps would be around 65 - 75C.
 
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#12
It's a sensor inside the GPU silicon. Probably (going by the name9 at a location where it gets hottest. That's all I know.

You also asked about HBM temperature location in a post that's now deleted due to cleanup. No idea again. The card gives me a sensor "HBM temperature" that's all I know
Sounds a lot like something I said Bossman Ty.
 
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#13
The GPU hot spot temp sensor...I guess? Which may or may not qualify as a "feature". I might have worded that poorly. As well as everything else I've said in this thread. I probably should have just kept my mouth shut. :oops:

I am sort of curious about it though. My question at this point is, is it only found on Vega? I noticed yesterday while using Polaris Bios Editor that there's a "Hotspot Temp (C)" value under POWERTUNE for Polaris 20, Ellesmere, Baffin, and Lexa. Which makes me think there's got to be a sensor for it on those too.
 

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#14
Has been there for a while, exposed just now.
 
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#15
Would it theoretically be possible to add support for reading VR_SOC and VR_MEM temps on Vega with GPU-Z?