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[Phoronix] Segmentation Faults On Zen CPUs Under Heavy Workloads - Page 31

post #301 of 388
You mean P-State overclock? Yes, when at idle it downclocks (1400MHz) and vcore goes to 0.700V (I edited P-State #2 VID/FID)
post #302 of 388
@gupsterg

Is your new CPU on way back home?
post #303 of 388
Nope. Not heard anything yet. So far I have seen some nice shares of results on UA 1730SUS back from RMA.

Probably the super computer in hanger is segfaulting to process RMA tongue.gif.
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post #304 of 388
Mine reached AMD today before noon thumb.gif
What nice results? So far I just saw they have lower VID and because of that run cooler and a bit more OC but nothing that would rip an ass.
post #305 of 388
Thread Starter 
https://www.phoronix.com/scan.php?page=news_item&px=AGESA-1.0.0.6b-Update

Missed this bs 5 days ago, but what is Phoronix thinking that a BIOS update can fix the random segfault crashes? It was acknowledged in the previous article that affected customers need to RMA, and only RMA so far is the solution for affected customers.
post #306 of 388
Not sure if I'm not source of all this BS devil-smiley-019.gif
I've created thread on AMD forum asking what AGESA 1.0.0.6b brings (it was just after asrock released BIOSes with it).
I just ASKED what exactly it may be suggesting few possibilities including fix.
Than I saw thread (not mine) on reddit referring to my thread changing some words from original thread.
Than it was dirty snowball effect - some quoted others and so on biggrin.gif

I don't feel guilty
post #307 of 388
@Anty

Hmmm Ryzen is rip ass in context of Intel IMO, especially price to perf.

Yeah OC room is not that significant but in the context of Ryzen pretty good IMO.
Warning: Spoiler! (Click to show)
Quote:
Originally Posted by thigobr View Post

Just received a new R7 1700 CPU from RMA. And this thing is a beast! Old one was 1707PGT and the new one is 1730SUS. I tested and it's "segfault" free (that's why the RMA).

The old CPU took ~1.26V to achieve 3800MHz and required more than 1.35V to do 3900MHz. 4GHz wasn't stable until 1.425V so I stopped there.

This new one does 3900MHz on stock voltage (1.187V)! I did a quick test and it seems to be stable at 4GHz with just 1.30V (Zenstates and LLC AUTO). Unfortunately I cannot change the vcore within UEFI because the CPU gets stuck at 1550MHz even using voltage offset.

Using an old D-Tek Fuzion V1 block, Magicool slim 360 RAD and 2x Corsair SP120 High Performance fans at silent speed.

Quote:
Originally Posted by nersty View Post

I assume it is still a lottery but I got my segfault RMA 1800X back. I wasn't able to reproduce the segfaults in 12 hours of compiling on the new chip.

I wonder if the new process or whatever of making the newer chips also results in better chips in the overclocking sense. My original 1800X wouldn't stabilize @ 4Ghz unless it was a 1.48V. The new one is stable @4Ghz as far as I can tell (p95, RB, CB, hours of gaming) at 1.25V.

I'd say those are good chips.

I had 3x 1700, none reached 3.9GHz. 3.8GHz was +150mV, +162mV and +196mV on the 3 I had. As it was PState 0 OC the VID being offset was 1.18V.

My 1800X needed ~+180mV offset on 1.35V PState 0 to snag 3.9GHz redface.gif .
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post #308 of 388
Quote:
Originally Posted by mouacyk View Post

https://www.phoronix.com/scan.php?page=news_item&px=AGESA-1.0.0.6b-Update

Missed this bs 5 days ago, but what is Phoronix thinking that a BIOS update can fix the random segfault crashes? It was acknowledged in the previous article that affected customers need to RMA, and only RMA so far is the solution for affected customers.

It definitely didn't fix it. I upgraded and mine still seg faults, it just takes over an hour till it does.

When I put my water block on I saw my CPU is from week 6.
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post #309 of 388
Thread Starter 
From the AMD forums:
Quote:
if you not a Linux software programmer or a Gentoo guy this problem not concern you. ;-)

Just a reminder that this is incorrect. Segmentation faults are just the visible symptoms. You can still get silent data corruption in any work load. Once enough corruptions are accumulated, files will no longer open or will open with garbage content, programs won't launch, or windows itself won't boot.
post #310 of 388
Quote:
Originally Posted by mouacyk View Post

From the AMD forums:
Just a reminder that this is incorrect. Segmentation faults are just the visible symptoms. You can still get silent data corruption in any work load. Once enough corruptions are accumulated, files will no longer open or will open with garbage content, programs won't launch, or windows itself won't boot.

In Windows, I had been getting both segfaults ("called access violations") and data corruption. But only for one specific workload and with a repro time on the order of 1 - 3 hours. Whereas it's only 2 minutes on Linux under the Ryzen killer script.

My replacement chip arrives today. Looking forward to see if it holds up.
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