Hi, I just finished my 5950X build weeks ago but was kinda frustrated with the random reboots and 'CPU Over Temperature Error' prompts from my motherboard so I figured I might as well write something about it here...
My build :
Ryzen 9 5950X
Asus Crosshair VIII Dark Hero (BIOS 3204)
G.Skill Trident Z Royale 4x32GB 3600 18-22-22-42 kit
Western Digital SN850 1TB NvmE Pci-E 4.0 x4 SSD ( + Intel 750 SSD, 2x 6TB HDDs from old build)
AMD Radeon 6900 XT (Reference)
Corsair AX-1000
IceGiant ProSiphon Elite CPU air cooler
Lian-li PC-O11D XL with 9x Arctic P12 PWM-PST fans
IceGiant cooler came with the Thermal Grizzly Kryonaut paste which I believe is better than most non-conductive compound in the market?
( well it should at least beat my MX-4 lying on the shelf.. )
So the CPU is not stable at all whenever PBO is enabled (with or without F-max or board core performance boost enabled)
it straight out spits 0x124 across my event logger with some occasional WHEA ID 18 logs flanked with maybe one or two ID 19 corrected ones
even if it ever lets me run benchmarks or CPU-Z score, the PBO clocks are simply not right with the performance and single core score shows my core clocks are super stretched
my CPU-Z score only shows single core at ~630 - 640 which is literally what my manual OC at 4.6Ghz could also score
in Cinebench R23 at PBO multi-core score is about 24k which I believe is on par with a stock 5950X
though even when accounting the core stretching at stock PBO, the core isn't even reaching above 4.95Ghz in HWinfo64 logs
Funny is my 5950X is only more stable when I punch manual OC and vcores to it (nothing too crazy, only CCD1 4.6 and CCD2 4.45 at 1.26V and LLC3 )
yet at manual OC it'll instead gives random black screen reboots or the motherboard screams 'CPU Over Temperature Error' while temps are only sitting at 70 ~ 80C
My previous build is an X99 platform, used to have a 6950X with 10 cores overclockable which I would have not needed an upgrade if it didn't die
fun fact, that 6950X died relatively slowly, from being able to OC at 4.1Ghz down to only able to run stock 3.5Ghz and finally a click to Post code 00
throughout that 9-month period (yes, that chip only lived 9-months) it just keeps spitting out random 0x124s or system hang ups which I can never replicate with stress tools like prime95 or occts
This 5950X gave me pretty much the flashbacks of that horrible chip
--
Small update :
As I attempted to type out this reply here in the meantime as I try and verify the chip with all default no oc settings
(aka everything auto with clock boost disabled and CPU at 3.4Ghz, memory 2133/1066FCLK)
it still crashes me with 0x124, I'll assume RMA is my only choice
The CPU batch no is 2047PGS (Malaysia), a fairly late chip I thought would be free of the WHEA issues but apparantly NOPE....
So much I loved you your Silver Sample 5950X but nah... I need a more stable 24/7 platform than these....
(This is my 2nd AMD cpu and it kinda didn't went well, my Intel 6950X also didn't went well...the names look similar, coincidence? : P)
also because of how scarce and scalped these chips are, mine came from Amazon instead of a local retailer which meant that I probably would have to bear shipping cost just to do the RMA as the times needed to wait for other parts to come in I've already long passed the return window Amazon had
update 2 :
Image for the whea and bsod logs
small note : CPU-Z shows I'm running 4.6Ghz, it's only because at stock or PBO and everything auto the PC would not stay up past 10 minutes and I had to go back to my manual oc attempts just to allow me time to do screen snippings and scroll through logs.... lolz