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Old 04-14-2020, 10:59 AM   #61
bassmadrigal
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Location: West Jordan, UT, USA
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Quote:
Originally Posted by asheshambasta View Post
I had several crashes this weekend.
After the first crash, I disabled the C-states in the BIOS. The system had trouble being put to suspend, but it would ultimately work. It seemed stable. I then added the rcu kernel flags, which only have effect if the kernel is built with related options. That also didn't help.

Even with the C-states set to off in my BIOS, I had another crash yesterday.

I went tinkering with the BIOS again. I set the idle control to "Typical current idle", since it had been mysteriously set to "auto" after my last BIOS update. It seems to me that these settings are not persisted across BIOS updates.

The strange thing is that this piece of crap also crashed once while tinkering with the BIOS. The mouse would move but clicking had no effect, until the whole BIOS interface just locked up.

---

At this point, I've given up on this machine and I'm done with all AMD related experimentation in my life.
I just want a system that is more powerful than an average laptop and one that works and is reliable. I've been burned bad by AMD here.

I've also written to them asking for a return, which they have refused, no surprises there.
They've offered a warranty replacement CPU, but I'm not sure if that is going to pay off. I live in the EU and the whole shipping back and forth will probably take months if not weeks: and that will be a huge downtime and it will impact my work.
I'd like some advice on whether AMD's return offer is even worth trying.

If not, I'll need to get rid of the motherboard, processor, heatsink, fan and replace it with the equivalent intel gear. This will cost me in the thousands.
You seem stuck that this is definitely an AMD problem. That hasn't been determined yet. What has been determined is this is not the idle bug that many early adopters of the Ryzen systems saw.

This sounds like you have some bad component in your system, but at this point, it's impossible to determine which one is bad. It could be the CPU, motherboard, RAM, PSU, etc. If you look deep enough, you'll find issues with both CPU makers, each motherboard manufacturer, all RAM companies, and every PSU producer. I understand the desire to write off a company after having a single bad experience, even though there's millions of people who haven't had that experience. But make sure it is actually the AMD CPU before you decide to jump ship (even though I do feel AMD provides some of the best bang for the buck). One of my MSI motherboards arrived DOA for my HTPC. I didn't know what the problem was until I did some hardware swapping with my desktop. Once I determined it was the motherboard, I did a quick swap through Amazon and the computer has been running fine ever since.
 
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Old 05-03-2020, 06:14 AM   #62
asheshambasta
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Quote:
Originally Posted by bassmadrigal View Post
You seem stuck that this is definitely an AMD problem. That hasn't been determined yet. What has been determined is this is not the idle bug that many early adopters of the Ryzen systems saw.

This sounds like you have some bad component in your system, but at this point, it's impossible to determine which one is bad. It could be the CPU, motherboard, RAM, PSU, etc. If you look deep enough, you'll find issues with both CPU makers, each motherboard manufacturer, all RAM companies, and every PSU producer. I understand the desire to write off a company after having a single bad experience, even though there's millions of people who haven't had that experience. But make sure it is actually the AMD CPU before you decide to jump ship (even though I do feel AMD provides some of the best bang for the buck). One of my MSI motherboards arrived DOA for my HTPC. I didn't know what the problem was until I did some hardware swapping with my desktop. Once I determined it was the motherboard, I did a quick swap through Amazon and the computer has been running fine ever since.
Yes I'm quite sure this is an AMD problem at this stage. This comes from a combination of repeatedly experiencing these crashes on hardware I've now tested across other machines: the GPU, Memory, SSD, they all seem to be fine.
And even before I tested this: I could see that the frequency of the issues varied with the power saving settings in the BIOS. This, by any means, is definitely related to the Processor.

Needless to say, I've owned something like 8 systems in the past: I used linux on each of them and none of the Intel based systems I've owned have had issues of this nature.

My system stayed stable for weeks and it randomly crashed a while ago: again, while idling. This happened after weeks, and without any changes I made to my BIOS. It just happened out of the blue.

Also, I've made a rather large investment in this machine. I do think being frustrated with how its working and how downright unhelpful AMD's responses have been, is somewhat justified.

Last edited by asheshambasta; 05-03-2020 at 06:15 AM.
 
Old 05-03-2020, 03:04 PM   #63
bassmadrigal
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Registered: Nov 2003
Location: West Jordan, UT, USA
Distribution: Slackware
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Quote:
Originally Posted by asheshambasta View Post
Also, I've made a rather large investment in this machine. I do think being frustrated with how its working and how downright unhelpful AMD's responses have been, is somewhat justified.
I never said it wasn't justified, but you didn't mention that you had tested all the other components separately. Nor did you mention that you had lockups weeks later with the system idling. I did mention that the bug I have has never lead to an immediate lockup, so if you're still experiencing that, it is likely unrelated to the bug that the rcu-nocbs option fixes.

All I know is my 1800x system has been rock solid stable for years since I added the rcu-nocbs option and I've never needed to add that option to my 2200G htpc system. It seems like I've only seen people with the 1st gen 1000 series processors experience the idle bug.

No matter what brand you use, you're going to find duds. You search on the internet and people have had issues with Intel and AMD. Ford and Chevy. Samsung and Apple. You might've been "lucky" and got a dud of a processor. Is anything I say going to counter your bad experience? No. Of course not. All I know is I got the best bang for the buck with the CPU I have in my system compared to the others available at the time. I have had some frustrating experiences with it (the joys of trying out new hardware on Linux), but I have no complaints now.
 
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