I am giving up on Intel and have bought an AMD Ryzen 9950X3D

Re:I am giving up on Intel and have bought an AMD Ryzen 9950X3D by Hendrikto on Sunday September 07, 2025 @05:54AM (#45156836)

Running your RAM so far out of spec that it breaks down regularly, where do you take the confidence that ECC will still work correctly?

Also: Could you not have just bought slightly faste RAM, given the premium for ECC?

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Re:I am giving up on Intel and have bought an AMD Ryzen 9950X3D by c0l0 on Sunday September 07, 2025 @08:38AM (#45157652)

"Breaks down" is a strong choice of words for a single, corrected bit error. ECC works as designed, and demonstrates that it does by detecting this re-occurring error. I take the confidence mostly from experience ;)

And no, as ECC UDIMM for the speed (3600MHz) I run mine at simply does not exist - it is outside of what JEDEC ratified for the DDR4 spec.

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Re:I am giving up on Intel and have bought an AMD Ryzen 9950X3D by adithyassekhar on Sunday September 07, 2025 @08:57AM (#45157782)

JEDEC rated DDR4 at only 2400mhz right? And anything higher is technically over clocking?

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Re:I am giving up on Intel and have bought an AMD Ryzen 9950X3D by dijit on Sunday September 07, 2025 @10:16AM (#45158324)

JEDEC has a few frequencies they support: https://www.jedec.org/standards-documents/docs/jesd79-4a

DDR4-1600 (PC4-12800)

DDR4-1866 (PC4-14900)

DDR4-2133 (PC4-17000)

DDR4-2400 (PC4-19200)

DDR4-2666 (PC4-21300)

DDR4-2933 (PC4-23466)

DDR4-3200 (PC4-25600) (the highest supported in the DDR4 generation)

What's *NOT* supported are some enthusiast ones that typically require more than 1.2v for example: 3600 MT/s, 4000 MT/s & 4266 MT/s

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Re:I am giving up on Intel and have bought an AMD Ryzen 9950X3D by c0l0 on Sunday September 07, 2025 @09:09AM (#45157871)

JEDEC specifies rates up to 3200MT/s, what's officially referred to as DDR4-3200 (PC4-25600).

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