Can't run memtest from Unraid USB

[yyquest]

Hi,

 

I am able to start my Unraid server just fine but when I select the memtest option during Unraid bootup, there is a prompt that says memtest is loading but memtest is never started. I have already tried to boot in legacy mode (motherboard is J3455-ITX) with the same USB drive but it does not seem to make any difference.

 

Any suggestions how I can actually run memtest? Thanks.

[trurl]

memtest86.com

[MAM59]

the memtest coming with unraid is pretty much outdated. Follow the link Trurl gave you, create a seperate memtest stick and run that one.

 

[Squid]

13 minutes ago, MAM59 said:

the memtest coming with unraid is pretty much outdated. Follow the link Trurl gave you, create a seperate memtest stick and run that one.

 

Only outdated due to licensing restrictions imposed by memtest themselves

[yyquest]

I am able to run memtest using the image from memtest86.com

3 hours ago, trurl said:

memtest86.com

 

I am able to run memtest now. Thanks!

[MarianKoniuszko]

Hello, when I try memtest from unRAID grub menu. Nothing happen. I install from link above, flash USB and try to start from grub menu nothing happen also. What can be wrong with my system?

[MAM59]

wrong question 🙂

should be "what is wrong with memtest?" instead.

 

And the simple answer is: it is totally outdated.

 

You need to pick up a current version from the memtest site https://memtest.org/ itself and put it onto a seperate usb stick.

The reason for this inconvinience is, that memtest has changed their license some time ago, UNRAID as an commercial product, is not allowed anymore to ship it. So the last "free" version stays on the UNRAID stick, but it does not work well (or at all) anymore on modern hardware.

(Should be dropped completely)

[MarianKoniuszko]

OK, thanks I run that memtest now. It works. It run some test at start and see many errors  I have brand new 64GB Kingston Fury. Only way is to return them back to Amazon?

[MAM59]

1 minute ago, MarianKoniuszko said:

Only way is to return them back to Amazon?

No,

It is normal for AMD based machines to show several errors.

 

What you have to do is:

* go into BIOS

* select a different (apparently lower) RAM speed

* rerun memtest

* repeat until the errors are gone

 

AM4 boards claim to be able to use DDR4 RAM with 3200Mhz, but they often lie. This depends on how much RAM you have installed, your CPU type and sometimes even what other slots are in use by which card.

 

So take some time and experiment a bit. My board for instance runs stable with up to 3000Mhz (128Gigs of RAM).

 

The normal speed 2133 Mhz should always work, this is what RAMS are designed for.

More is possible but not guaranteed.

Try it

 

[MarianKoniuszko]

I don't have AMD. I have Asus prime H610 motherboard with Intel i5-12600K CPU and Kingston Fury Beast 2 x 32GB RAM, ddr4.

I run that test because I have many times docker service failed.

[MAM59]

I dont know about Intel, but I guess it could happen there too. Just experiment with RAM speeds and see if the errors vanish.

 

[MarianKoniuszko]

1 minute ago, MAM59 said:

I dont know about Intel, but I guess it could happen there too. Just experiment with RAM speeds and see if the errors vanish.

 

Thank You I will do that after test.

[MAM59]

btw: you don't need to wait forever.

 

if an error shows up, immediatly cancel memtest and try the next speed.

 

[MarianKoniuszko]

3 minutes ago, MAM59 said:

btw: you don't need to wait forever.

 

if an error shows up, immediatly cancel memtest and try the next speed.

 

Thanks. I stop and look to change. I never do that. Can You tell me it's in Ai Tweaker tab > DRAM Frequency?

[MarianKoniuszko]

Ok, I change Frequency to 2133 and set mode energy efficient but still have errors in memtest.

[MAM59]

1 minute ago, MarianKoniuszko said:

Ok, I change Frequency to 2133 and set mode energy efficient but still have errors in memtest.

ok, then I would return the RAMs. 2133 should always work (but "energy efficient" ? turn this off and try again. dunno if it has bad effects)

[MarianKoniuszko]

Hi @MAM59 can You tell me how long that test should work? It's still testing. I took out one 32GB and test second. Looks like only one have that errors.

[JorgeB]

1 to 2 passes is usually enough to find most issues.

[MarianKoniuszko]

1 minute ago, JorgeB said:

1 to 2 passes is usually enough to find most issues.

Thanks. I order new ones. Can You tell me do I have to do something on unRAID when I change RAM? 

[MAM59]

4 hours ago, MarianKoniuszko said:

You tell me how long that test should work?

Not really, this obviously depends on size and speed (of the used processor).

Once I had found a "suitable" setting, I had let it run overnight. When I got up again, it had finished four complete test runs (without any error).

 

To play it even more safe, you can afterwards lower the speed another time. (mine were "stable" with 3100Mhz, I've set them to 3000)

 

It does not really matter if they run at 2133 or 3200, the difference is only visible on a busy computer doing maths like bitcoin or cyphers. For the usually sleeping fileserver RAM gets bored :-)))

 

[MarianKoniuszko]

OK, thank You for Your help. I already make return on Amazon and order new ones.

[MAM59]

23 minutes ago, MarianKoniuszko said:

Can You tell me do I have to do something on unRAID when I change RAM? 

Turn on the machine with the UNRAID stick in :-)))

(naaa, kidding, there is nothing to do, UNRAID will determine the new size and recalc buffer usages and so on automatically)

 

[JonathanM]

6 hours ago, MarianKoniuszko said:

Can You tell me do I have to do something

Test the new RAM before booting Unraid. New does not always = good.

[MarianKoniuszko]

3 minutes ago, JonathanM said:

Test the new RAM before booting Unraid. New does not always = good.

Yeah, I know that now 😁