requesting PC help, boosts appreciated 

This has really got me stumped.

My work PC's CPU temps at idle and light workloads (office, web browsing, documents, spreadsheets, etc.) are stable, hovering around 34-44C.

Problem is, every once in a while, there is a sudden, momentary spike up to 95-100C. It lasts for less than a split second, and does not cause any issues as far as I can tell--no lag, no system crash, freezing, BSOD, errors, etc.

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requesting PC help, boosts appreciated 

I'm unable to pin down any specific application or workload that might be causing this sudden, momentary spike.

Could it be a thermal sensor glitch?

I thought it might be a heat sink issue so I re-pasted it, that didn't make any difference.

And what's more, when I run a stability test benchmark (prime95), the maximum recorded temps are around the 80C mark.

So that tells me it's not a problem with the heat sink, I think?

requesting PC help, boosts appreciated 

@shahaan The device doesn't feel hotter near the CPU region after the max temp shows up ? Does it trigger the fans to run at full speed ?

requesting PC help, boosts appreciated 

@alice Nope, it’s cool as always. About the fans, well, it’s a fanless cooling rig, so no idea about that. Basically the PC case is a big aluminum radiator into which the PC is fixed. See photo :)

requesting PC help, boosts appreciated 

@shahaan Wow, cool ! I didn't know such machines existed : ) I hope someone with more hardware knowledge will confirm or infirm your thermal sensor glitch hypothesis.

requesting PC help, boosts appreciated 

@alice I hope so, thanks for your help so far 😊

Half knowledge answer 

@shahaan Can the CPU even get that got and then cool again in less than a second, physically? The thermal sensor glitch sounds like the most probable explanation to me, but also I'm far from being an expert on that.

Half knowledge answer 

@tofuwabohu That’s what I was thinking too. But these things are not always intuitive. I dunno. I hope someone who knows more or has experience can shed some light. Thanks :)

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Eldritch Café

Une instance se voulant accueillante pour les personnes queers, féministes et anarchistes ainsi que pour leurs sympathisant·e·s. Nous sommes principalement francophones, mais vous êtes les bienvenu·e·s quelle que soit votre langue.

A welcoming instance for queer, feminist and anarchist people as well as their sympathizers. We are mainly French-speaking people, but you are welcome whatever your language might be.