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I have a suspicion that GN have uncovered some of the wonky LLC issues and the deviations from specified SoC voltage to actual. I know that some of the ASUS ROG series were running SoC as high as 1.45v, and I suspect spiking considerably higher.
I think the rabbit hole goes a bit deeper than that. People keep mentioning ASUS mobos, but these seem to be the just the first examples.
Plenty of reports of all MOBO vendors rushing out BIOS patches.
It's an AMD CPU issue, which I'm sure will be patched soon, but with lower RAM voltages/speeds.
Oh yes, it affects all motherboards and all 7000 series CPU's
However it affects X3D far more than X series, and also there is a far greater failure rate on Asus motherboards than others - looking at all the failed reports out there.
The issue, as far as AMD and mobo manufacturers are concerned is too high an SoC voltage.
X3D chips are far more sensitive to this, and it looks like some ASUS boards were going just that one step further on the SoC overvolt than other boards.
They all have been overvolting too far when EXPO is enabled, just it appears some more than others (Asus).
Well, overclocking always carries risks, hence why no warranty.
The strange thing for me is that XMP or EXPO overclocks are taken as a given...
I wonder and think RAM vendors might need to be a little bit more carefull in future.
It's not an Asus thing, its an AMD voltage spec issue.
Ehhhhh lets see what actually comes out. The failure is so rare that I think more than one issue has to collide to blow up the chip.
What GN is saying is that Asus is blaming AMD for an Asus problem. This doesn't mean there aren't other problems which are AMD problems.
Zen 3's IO die was manufactured on GlobalFoundries 12nm which was sensitive to high voltage. Zen 4's IO die is manufactured on TSMC 6nm which can take a lot higher voltage, though apparently not as much as they thought.Zen 3 chips were very sensitive to SoC voltages, and anything above 1.2v was considered unsafe and could kill the CPU. Why Zen 4 all of a sudden is any different and was thought to be able to handle 1.4v, i don't know
Buildzoid has a very interesting video, he is actually wondering why board manufacturers are all panicking about SOC voltage when the bulging a burning is clearly under the core die not the IO die and is blaming vcore voltage not SOC voltage.
Highly speculative rambling about why Ryzen 7000 CPUs are dying.
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