[SOLVED] Welp, my 5950x main system died yesterday. Strange failure mode

phaZed

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Richmond, VA
Gigabyte x570 Aorus Pro Wifi
AMD 5950x
64GB DDR4 3600
RTX 3090 FE
Sys drive: Samsung 980 Pro Gen4 1TB M.2 NVME

Looks like my Mobo (or CPU) died from one day to the next. It's been a perfect system with literally zero issues or bluescreens. Now, it boots and posts and tries to load windows and is succeeding every 3rd or 4th attempt.

I have reseated everything.. the CPU received a contact cleaner spray and two reseats (I have seen bad contact cause the fTPM/NewCPU error before). I have tried all 4 sticks of memory and 2 sticks of new memory - all channels, each by themselves. All speeds... including all the way down to 2400MHz - to 3600MHz. 1.2v an 1.35... makes no difference in operation.
I have removed all USB devices, hubs, USB headers from the board, RGB, etc. Same outcomes.

All extra drives removed (3 others) - and the SSD was checked on another system and reports good.


Symptom 1:
System will lock up or fail to boot to Windows every 3-4 boots. Each time it fails - it fails in a slightly different way (Full lock with spinning dots stopping - power button off)(Bluescreen complaining of watchdog timeout)(Bluescreen complaining of driver power state failure)
Sometimes, at POST I get the "New CPU installed, fTPM reset Yes or No - which is the 4th failure - when this happens, windows's next boot is guaranteed to fail.

Each of the failures are in the same order every time with the fTPM message sprinkled in every so often. Very repeatable.

Symptom 2:
The system is really unstable when the SSD is going idle! When Windows loads, if I immediately give the system a large copy task (100's of gigs) and copy those out to a "slow" 8TB spinner on SATA bus, the system will stay up with no issues, indefinitely! - full performance and everything. Weird. So I looked to turn off link power management - but it is already turned off - always has been. I tried new AMD drivers, old AMD drivers - BIOS update (Was only 2 months behind),etc... but I haven't changed anything that coincided with this problem.

So, if I boot and just let it sit there or doodle around with chrome - it locks up within 15-20 seconds after all background tasks have loaded.
If I boot it and immediately start a copy - I've had it up for 3 hours and successfully copied everything. It locks up exactly at the point of finishing (or if win throws up a prompt to overwrite, copy sys file, etc.)

Symptom 3:
I installed a completely new and different SSD - I can't install Windows - it locks up before it can even get to the first prompt.
System repair/Automatic repair will lock up if you're not fast enough to click through - again, while the bus is busy transferring data, it's happy. Once it stops for what feels like 200ms.. it's done.

So, got a new x570 Mobo on order. Hoping it's not the CPU.
 
Sorry, 1000W Seasonic 80+ Gold 10 year - tests good on the power tester (voltage). Tried a new EVGA 850W right out the box, no change.

Everything is on true Sine UPS's - or whatever the APC marketing is for that.
 
I doubt very much it would be CPU.
CPU,s dont fail and havent for many years now.
I think you're on the right horse with the Mobo being the problem.
should be here friday - so I'll know soon. I've only had a handful of bad CPU's come through the shop so I'm hoping I fit in the mobo category lol.
 
Yeah I would have thought the PSU but with the PSU details I am thinking the Mobo or maybe RAM at this point.
 
Jesus. Looks like the CPU. Off to pickup a new 5950x in an hour at Best Buy.

New motherboard, barebones on a bench - still no good. This one doesn't boot to windows - it has infinite spinning dots - locks in System repair and can't fresh install windows either - so, still locking up in a fairly low-level area. It's got to be the CPU and it's onboard busses.

I'll confirm it later. Ugh. $581 after tax "on sale" at Best Buy

@Blues - it can't be RAM anymore... 4 sticks of TridentZ neo 3600MHz and 2 sticks of Corsair Vengeance LPX 3200MHz all with no change in behavior.
 
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I'm curious what do you need that CPU for I find typically the Ryzen 5 and Ryzen 7 are plenty power for everything I do which included video encoding and decoding.
 
It's still an AM4 socket if I'm reading correctly - I would have dug through my boneyard to look for a Ryzen 5 to swap in as a test before ponying up for another Ryzen 9. Murphy's law and all that, OP probably didn't have any other choice. If he's got to buy one, he might as well get the duplicate. At least it wasn't a Threadripper!
 
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@Blues - A little bit of everything. I run a triple monitor system.. and at times it can be as stressful as running three systems, or worse. I'll often run 2-4 VM's for various things (Not 24/7 obviously, but sometimes 24-48 for sure!) - for work, for play, for learning - I do 3D rendering, and have been getting into various AI projects like https://www.reddit.com/r/StableDiffusion/

3D Modeling, 3D printing... I have a full Ableton Live Pro Suite, Daw plugins, plugins, plugins. Use Blender and DaVinci Pro, multiple MIDI devices...

And all at the same time - I need to be able to switch to a browser and check customers out on it... so it can't be crashing or busy all the time - yet, it's almost always "doing" something. I say this as I've just been using my Lenovo Legion laptop in the meantime.. that is on top of my Kali Linux box... but I'm missing my software stack already :-( lol.

I've gotten to the point in my life, and in business, where it's not a big deal to spend the extra dough, and it's a biz expense already.
 
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