Monday, April 24th 2023

AMD Ryzen 7000X3D Processors Prone to Physical Damage with Voltage-assisted Overclocking, Motherboard Vendors Rush BIOS Updates with Voltage Limiters

AMD Ryzen 7000X3D processors are prone to irreversible physical damage if CPU overclocking is attempted at some of the higher VDDCR voltages (the main power domain for the CPU cores). A Redditor who goes by Speedrookie, attempted to overclock their Ryzen 7 7800X3D, leading to an irreversible failure. The motherboard socket and the processor's land-grid contacts, show signs of overheating damage caused by the contacts melting from too much current draw.

A Ryzen 7000X3D processor features a special CPU complex die (CCD) with stacked 3D Vertical Cache memory. This cache die is located in the central region over the CCD where its 32 MB on-die L3 cache is located, while the difference in Z-height of the stacked die is filled up by structural silicon, which sit over the regions of the CCD with the 8 "Zen 4" CPU cores. It stands to reason that besides having an inferior thermal transfer setup to conventional "Zen 4" CCDs (without the 3DV cache), the CCD itself has a higher power-draw at any given clock-speed than a conventional CCD (since it's also powering the L3D). This is the main reason why overclocking capabilities on the 7000X3D processors are almost non-existent, and the processor's power limits are generally lower than their regular Ryzen 7000X counterparts. Attempting to dial up voltage kicks up the perfect storm for these processors.
Igor's Lab posted a detailed analysis of the region of the Socket AM5 land-grid most susceptible to a burn-out in the above scenario. The central region of the LGA has 93 pins dedicated to the VDDCR power domain, dispersed in a mostly checkered pattern, toward the center of the land-grid. Igor isolated 6 of these VDDCR pins in particular, which are most prone to physical damage, as they are located in a region below the CCD that sees it sandwiched between the L3D (stacked 3D Vertical cache die), and the fiberglass substrate below. Apparently, AMD's thermal and electrical protection mechanisms aren't able to prevent a runaway overheating of the pins that causes the substrate to melt, deform, and bulge outward, resulting in irreversible damage to both the processor and the socket.

Meanwhile, AMD's motherboard partners are rushing to release UEFI BIOS updates for their entire lineups of motherboards, which enforce tighter limits on the VDDCR voltage. MSI is the first motherboard manufacturer with such updates. MSI, in a press statement, stated that it has redesigned automated overclocking for 7000X3D processors. "The BIOS now only supports negative offset voltage settings, which can reduce the CPU voltage only," the MSI statement to Tom's Hardware reads. "MSI Center also restricts any direct voltage and frequency adjustments, ensuring that the CPU won't be damaged due to over-voltage." On the other hand, the update introduces an automated overclocking feature called Enhanced Mode Boost, which optimizes PBO settings to improve boost frequency residency, without any manual voltage adjustments.
Sources: Tom's Hardware 1, 2, Igor's Lab, Speedrookie (Reddit)
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258 Comments on AMD Ryzen 7000X3D Processors Prone to Physical Damage with Voltage-assisted Overclocking, Motherboard Vendors Rush BIOS Updates with Voltage Limiters

#251
wheresmycar
danc

Asus clears up gamernexus SOC measurement FUD

auto translate english.

A pity youtube does not redact the past views, GN ran away with a big income using lazy research and too smug to apologise i betcha
If he's got it wrong... an apology would be in order and a second follow-up upload to rectify the situation. I did find him calling out ASUS for being scum bags HARSH! But then again, i'm not in a position to judge either party due lack of the internal know-how or on-going/historic skirmishes between the 2 parties (if any).

Other than that i don't have a problem with reviewers occasionally making mistakes or when things stick manufacturers being criticised for their ill/lazy-practices. IMO, most of these companies get away with murder and without these reviewers or wildly publicised criticisms they'd kill us 10-times over.

Oh and i can't stand brand until-i-die loyalists. Thats right, a middle finger :D (not sure where that came frombut it felt relevant).
Posted on Reply
#252
Gica
Laboratory analysis, professional testing, not assumptions.
You have over 1080 degrees Celsius in the processor and no protection is activated, it really is a problem.

Posted on Reply
#253
Nam-A-M-D
KlemcSo, 1616 with AGESA 1.0.0.7A (alpha, not even beta now !?) is verry good or should i use 1413 first ?.. i will mount my PC friday and use flashback !
The 1616 Bios is for the ROG STRIX X670E-I GAMING WIFI. If this is your MB then stay with that bios. The bios layout will look the same in general.
Posted on Reply
#254
Klemc
Nam-A-M-DThe 1616 Bios is for the ROG STRIX X670E-I GAMING WIFI. If this is your MB then stay with that bios. The bios layout will look the same in general.
No, the 1616 is on a lot of Asus Motherboards, like was previous versions number like 1413/1409...

So you say this 1.0.0.7A (1616) is the one i should flashback when i plug my CPU "today" (yes, it's the day) instead using previous older ones like 1409/1413 !?!

I think too.
Posted on Reply
#255
Nam-A-M-D
KlemcNo, the 1616 is on a lot of Asus Motherboards, like was previous versions number like 1413/1409...

So you say this 1.0.0.7A (1616) is the one i should flashback when i plug my CPU "today" (yes, it's the day) instead using previous older ones like 1409/1413 !?!

I think too.
It is not showing for the ROG STRIX X670E-E GAMING WIFI as it only has 1416 available. Use the newest one for your board and check all is ok. If not then flash back to the previous one.
Posted on Reply
#256
Klemc
My RMAed (replaced) B650E-E and 7800X3D, today first boot after BIOS 1616 backflashed :


Oh well, CPU Boost OFF and no DOCP :p
Posted on Reply
#257
AusWolf
KlemcMy RMAed (replaced) B650E-E and 7800X3D, today first boot after BIOS 1616 backflashed :


Oh well, CPU Boost OFF and no DOCP :p
SoC at 1 V. Nice! Is this the new unit?
Posted on Reply
#258
Klemc
AusWolfSoC at 1 V. Nice! Is this the new unit?
Yes, RMA replaced, and i used MX6 paste, i use PowerMax to test if CPU go high temp (5 min...

... now with CPU Boost ON and DOCP I :

Posted on Reply
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