Intel Isolates Root Cause of Raptor Lake Stability Issues to a Faulty eTVB Microcode Algorithm

[trparky]

How have they not pin pointed a cause by now?

Maybe they're just trying to sweep it under the rug until the next generation of chips come out. Admitting fault would be devastating to their stock price and we all know that they can't have that. Right?

 

[InVasMani]

Maybe they're just trying to sweep it under the rug until the next generation of chips come out. Admitting fault would be devastating to their stock price and we all know that they can't have that. Right?

I hate to say it, but I wouldn't doubt that at all. It seems probable enough. I wish these issues would've been talked about in the reviews, but I don't think I saw mention of it in either generation reviews to do with Raptor Lake and refresh, but seems like a bit of a degradation issue that flew under the radar a bit and more pronounced probably with the refresh pushing things steps further.

 

[SL2]

One of the things I've speculated is maybe the socket bending issues is part of the problem.

I dunno, shouldn't that affect the 12900K as well?

 

[InVasMani]

I dunno, shouldn't that affect the 12900K as well?

Didn't they thin the substrate more though between Alder Lake and Raptor Lake!? You don't want more flex/sag over time. Eventually that can create problems with heat cycling.

 

[SL2]

Didn't they thin the substrate more though between Alder Lake and Raptor Lake!? You don't want more flex/sag over time. Eventually that can create problems with heat cycling.

It seems like they did.

Alder:

Substrate Z = 1.119+/-0.095 mm 2.005±0.114 (BOTTOM OF BGA TO TOP OF DIE)

Raptor:

Substrate Z = 1.116+/-0.095 mm Die Z is 0.37 mm

 

[trparky]

And here we have this one from Techspot... Game developer says Intel should recall its defective, crash-prone CPUs | TechSpot

 

[InVasMani]

Intel is really dragging their heels on this issue.

 

[SL2]

Adding lower power settings made sense tho, as it will make Arrow lake look better at launch lol