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GMP damaging Zen 5 CPUs?
21–30 of 240 posts
Re: GMP damaging Zen 5 CPUs?
#22Re: GMP damaging Zen 5 CPUs?
#23Most likely it's the motherboard. ASRock is getting nailed right now for unstable XMP and CPU voltages (it's recommended to undervolt a little just in case).
The Asus Prime B650M motherboards they are using aren't exactly high end.
Re: GMP damaging Zen 5 CPUs?
#24Earlier quoted context omitted.
Are we talking "slowly" in a relative sense? A silicon die of this size has a thermal mass (guessing) around 10⁻³ J/K but a power dissipation rate over 200W, so it can rise from room temperature to junction temperature limits almost instantly.
People without a background in electronics don't appreciate what modern CPUs and GPUs are doing: the amount of current flowing through these devices is just mind blowing. With adequate cooling, a Ryzen 9 9950X is handling somewhere in the neighborhood of 150-200 amps under high load.
I initially scoffed at the 150-200 amps. But I know core voltage is usually in the neighbourhood of 1V so to draw 200W, you really would have to basically be moving 200A of current. That's wild.
Re: GMP damaging Zen 5 CPUs?
#25My Ryzen CPU recently died too! wtf
ASRock motherboard?
Re: GMP damaging Zen 5 CPUs?
#26How is that possible? Even if the chip did not get enough cooling it should have been just throttled heavily.
Modern silicon is so dense and heats up so fast that throttling is easier said than done. I think they have to model and predict the thermals ahead of time nowadays, because by the time they could react to a temp sensor alone, the chip might already be toast.
Re: GMP damaging Zen 5 CPUs?
#27What is gmp?
Re: GMP damaging Zen 5 CPUs?
#28The room temperature or precise way the paste was applied should not matter. Modern CPUs have very advanced dynamic voltage and frequency scaling (DVFS), which accounts for several sensors, including temperature. These big x86 CPUs in stock configuration can throttle down to speeds where they can function with entirely passive cooling, so even if the cooler was improperly mounted, they'd only throttle. All that to sa…
This was my first question as well- I thought it had been a long, long time since you could fry a CPU by taking away the heatsink.
As in... what, AMD K6 / early Pentium 4 days was the last time I remember hearing about cpu cooler failing and frying a cpu?
Re: GMP damaging Zen 5 CPUs?
#29As there is ongoing drama with Zen 5 and power issues, there are people with the instruments and the motivation to investigate this. You should consider contacting Gamers Nexus, and help them to get your test suite running. They can measure power draw and do a thermal analysis of this CPU, and they'd likely be eager to do it, given the possibility of making a bunch of dramatic YouTube content about design flaws in wi…
He's a bit sensationalist, yes, but I am thankful that he saved us from buying affected Intel CPUs.
GN wasn't the first to break the story the 13/14th gen was defective. The thousands and thousands of users experiencing the issues collectively noticed pretty quick. If anything, there was a period where he was saying "We've talked to Intel but we won't say anything yet until they do."
Re: GMP damaging Zen 5 CPUs?
#30What is gmp?
The domain has the answer: https://gmplib.org/