How To Test AMD Radeon GPU RAM memory using Linux Scripts
ฝัง
- เผยแพร่เมื่อ 19 ก.ย. 2024
- LER #239 How to use Linux scripts to test GPU RAM
Wanna know? You just have to press PLAY.
Software links in this video:
Rufus (english)
rufus.ie/en/
Arch Linux
archlinux.org/...
memtest & dmgg scripts:
drive.google.c...
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Richard
![PURPEECH - นี่ฉันเองคนที่... (It's me) [Official MV]](http://i.ytimg.com/vi/NuhHd0hOOg8/mqdefault.jpg)
Just found your channel, amazing, I have some electrical experience, kinda basic but thorough and still have my tools and test gear, I'm gonna learn me some of this, need to find a few really exiting skips, thanks buddy, this is pure gold! ;D
This is great to know. I'm trying to repair old GPUs myself, just as a hobby, and I never knew tests like that existed. Time to scavenge through my (well-filled) GPU scrap metal crate again and maybe save a few more :D
It is working on my HD5830 Sapphire Xtreme, big thanks Richard!
🆘 Help!
09:27 At that point I fail.
cd /run/archiso/bootmnt doesn't work, has something changed in Arch Linux?
Says: no such file or directory.
How do I get to the directory where dmgg.py is? It's like in the movie, on USB stick.
I've already tried commands like: media, volume, but also with the message: no such file or directory.
Found the error. The script works.
What was the error i have the same one
@@andymark3664 what was the error? I'm trying to figure this one out too
these scripts are garbage. use tserver for amd or mods mats for nvidia
thats it
I'm a complete beginner when it comes to electronics repairs and really enjoy your videos, a real fountain of knowledge :). To the point though...
Some time ago I've seen a video with an interesting method of identifying faulty memory chips on a graphics card (cannot find it anymore! :( ). The idea was to use a multimeter with a resistor attached to it (don't rember how, you'll figure it out with your knowledge) and probing the chips with such "device". It was causing artifacts on otherwise correct sections of the screen from the working chips, and also increasing artefacting/blinking on the faulty ones. Maybe you can make use of this method?
This only works if you have vertical lines with artifacts. Just search "AMD Memory Testing Guide" in google. You basically short to ground a memory chip with a resistor (about 300-500 ohm - see for yourself which value works better). This will provoke vertical lines on top of bad chip vertical lines.
Thanks for sharing more interesting card repair info. That software is great. I'll look forward to see how useful it is. I'm guessing you will be implementing it into future card repair video's.
Sure when it is needed
One point regarding using the mount command. As you are booting off a USB flash drive that device would have to be already mounted to read the various Linux files and scripts. The mount command would however be needed if say you were using a Linux machine and had these script files on an external USB flash drive. That would be when the mount command would allow accessing the USB flash drive.
Thanks Greg. As mentioned I am no expert in Linux but thanks to your excellent explanation of the mount command I have learned something here 🙂
I cannot go to directory cd /run/archiso/bootmnt. It says no such file or directory please help
same problem
@@mberring1 i fixed it by using older versions of arch linux.
@@uzairfarooq273 thank you bro!
2020 version works fine in case anyone is wondering and have this same issue. Thanks to @Uzai Farooq for pointing out this.
When I am watching this, I had a good sleep 😅😅
Thank you for your useful instructional videos
This is really indeep going diagnosing, thanks for showing us.
Thanks for sharing , i will try it on my RX570 🙏
In my case I tested with 10 Mb and the test was ok...then I put 50 Mb and give an error in chip 7/8.
when I run "python3 dmgg.py e0000000 10 16" (my r9 290 have 16 chips) i got a error "xz decompression failed, data probably corrupt" OSerror errno 5
It’s amazing… God bless you 🙏
Thank you sir for this video, i have tried many others methods to detect on which VRAM module is broken on my 5700xt. it has told me that slot 7 and/or 8 is broken. but it only says 1 is faulty. hopefully this works!
Outstanding Sir.
Awesome! Thank you!
Hello Sir, what do you think, is it better to use this program for test amd cards or "the lord of gpu" program that you show us earlier... Wish you the best.
Lord of the GPU won't work with Navi. Just tried it myself and the Linux system can't recognize the card and won't post.
Even if using onboard graphics to post though, kings_overkill replied to comments in his own video that Lord of the GPU does not work for Navi.
Appears this is the only option at the moment
Dont work, error: wrong fs type, bad option, bad superblock on /dev/sdb, missing codepage or helper program, or other error. Dmesg1 may have morr information after failed mount system call. 😢
I have the same bullshit. Everything tried! 15 USB sticks 390 different ISO softwares CSM to UEFI in the bios .... Damn bullshit!!!
Sdb is the device you need to mount the partition it should be something like /dev/sdb1
I will test it now!
Thanks for the guide video. I tried it with 6800xt. 10mb works fine with no errors. From 13mb onwards, there is noise on the screen and an error appears. Is there any problem?
The same here with rx 470 that works fine. I belive this is a bug, so test all gpus with only 10mb.
I have an old radeon 7080 or something from the early noughties, maybe I'll dig it out....
I wait with enthusiasm for each Learn Electronics Repair videos, and this was a good one but can you tell me why do you test on 10MB of the 4GB of RAM?
Typically the whole chip goes bad, testing 10mb of each chip is usually enough to catch it. (It likely also spreads the 10mb per chip, across the whole chip.)
This is how the nvidia version does it.
Yeah, what Sascha Elble says. Any RAM fault sufficiently severe to stop the GPU displaying an image, artifact or crash when driver loads, would show up very quickly once you start the mem test. Having said that you are free to rest as much of the RAM as you like - but it will take longer the more you test.
hello, I have an Asus dual rx580 8gb, Windows recognizes it, but when installing the drivers it gives error 43, in gpuz the clock is at 0, I did the test with this script and it gives me an error in three channels, that is 3 and/or 4, 5 and/or 6, 7 and/or 8, the question is, is it possible many memories to fail?
Great video. Have you seen examples of vmemory not being detected at all? Will that tool help in this case too?
I can't say I have seen that. It would probably mean all the RAM was short, The RAM or memory controller had no supply voltage or the GPU memory controller was completely trashed. All of these would be easy enough to spot with a multimeter so you would never get to the point of trying to test the video ram.
@@LearnElectronicsRepair i noticed that for Polaris cards when one VRAM is burnt or removed memory is not detected at all in testing software or Windows. So it was a bit painful sometimes to identify the one that failed
i have a card which is in my pool cleaner and it stopped working can i send it to you to repair please ? and maybe make a video on youtube for it ?
give me a few, one day i'll be just like you ... ty!
Interrsting. Do you use tserver?
I have seen this dmgg in Russian forum but the content was visible only if registered ... struggling through google translate and the non-English registering process I almost got a headache and let it go, have you also tested the card with tserver on that 70gig image ? unfortunately that image for amd wont work on my pc (4th line) and after some loaded lines it would stop reaching to root directory line although the first 1-3 lines containing mats work like a charm..
Tested the dmgg code on RX470 and I think its not suitable for Polaris ones or there is something wrong with the code, the card is healthy and passes the furmark and tserver easily but with 8 chips argument mentioned the dmgg announces there are problems with all 8 chips, if I confine the test with 1-7 chips it would pass.
on my archiso usb there is no bootmnt, there is only airootfs, copytoram, and cowspace . Any idea what I need to do?
use exact version of arclinux mentioned in the video. it will solve your issue.
Does anyone have memtune files for RX 6800 XT, RX 6900 XT?
Hi, when I try to use this linux test on my EVGA GTX 980 Ti Classified Gives me a black screen and then reboot's the computer, this means that is something wrong with my Graphic's card or is just because it is an NVIDIA? Thanks and congrats for all the videos that you make.
bit late here but for nvidia cards you want to use mats/mods not this software.
@@JeffMacPherson-w8r Hi. Thanks a lot for the info 🙏
thanks
How do you have integrated graphics on a mobo new enough to support UEFI? What am I not understanding?
It has in IGPU in the CPU.
hi, does this also work for an r9 390 8gb?
Only useful if have second integrated graphics. I have rx6900xt and good graphics output, but as soon trying to install drivers... only system restore brings me back to bootable windows
Hi, I also have a 6900xt Asus Tuf with an EKWB water block on it. I bought it used and it was working fine on the system of the seller, but as soon as I put it in my system and installed fresh Radeon drivers, the driver would crash. I would then get a no signal showing up on my monitor. The card works fine with generic microsoft driver, but not the radeon driver.
Sorted, just washed with alcohol and WD contact cleaner, then letter to dry for 3 days
@psioniclt interesting. Well I just sent my card out to a board repair place, so hopefully they can figure out what's wrong with it.
Will it work on Nvidia?
Heya, I have heart off linux buut never worked with it, it looks a bit like ms-dos/machine laugauge as I like to coll it lol
Should've made everyone jump through the arch install hoops first!
Hello Richard,
just an idea here - Is it possible to tell the script to test 1,2,3,4,5,6,7 chips even when there are 8? If so, in theory you could find the faulty one by running the script 8 times and increasing the number of chips parameter by one on each iteration. The only thing then would be to find the chip nr. 1. (as shown in the graphic)
For other people here - A previously released guide:
HOW TO DIAGNOSE FAULTY VIDEO RAM CHIP ON ALMOST ANY NVIDEA / AMD GPU RTX, GTX, VEGA, R9, R7 & More
th-cam.com/video/a4QUkoBvxuY/w-d-xo.html
And there is one more, just can't find the link now
Marcel Lipovsky
The script file is open source and written in python, so anyone with some programming knowledge is free to modify or improve it. I'm not an expert but I think the chips 1-8 are all at the same address but the databus is the width of all the chips together. So for example if each chip is 32 bits then 8 chips would give a 256 bit wide word.
Meaning at address f0000000 you would write and read 8 x 32bits simultaneously (or sequentially?), and could not address and test each chip individually.
Having said that, maybe if you found errors at some address then you could start writing data at that address such that 7x 32 bits had for example 0x00 0x00 0x00 0x00 and the 8th one had some other test pattern sequence, and then you *might be* able to determine which chip was likely to be faulty by the bit positions where you are/are not seeing errors?
Maybe someone with an understanding of GPU memory architecture and experience in python (or any other language you could program in) wants to reverse engineer the source code and try such a technique?
@@LearnElectronicsRepair I am no python expert, but have a bit of programming experience in other stuff. I should be able to modify the script/add a new one, but the GPU memory architecture and addressing is out of my scope of current knowledge.
Good
6900XT - КАК ПРОВЕРИТЬ
How do I disable a memory module? rx5700xt
u cant
your right is not paid
?? I don't understand your comment please explain
Ich krieg langsam die Krätze mit dieser Scheisse ! Bad Superblock oder readonly bla... man kann nicht auf die Ordner zugreifen. Was eine ROTZE !!
not work useless ap
a very bad test, also used it several times, in fact writes all sorts of nonsense, there is no trust in him, disappointed.
same result on 5 different graphics cards! 😁😁