[SOLVED] Please help me identify if RAM or motherboard is faulty

[gaming_shrimp]

Hi everyone,

I apologize for the long post, but I have been having stability issues with my Work/Gaming computer and would like to please ask for some help.

System specs:
CPU: I9-9900k Processor, [non-OC].
Motherboard: ASUS ROG Maximus XI Hero.
RAM: Kingston HyperX Predator RGB HX440C19PB3AK2/16 16GB (2x8GB) DDR4, [XMP-4000], installed in slots A2 & B2 as per manual.
PSU: Corsair AX860 Platinum 860W.
GPU: none, currently monitor is connected to MOBO HDMI.

Issue:
Yesterday while working on AutoCAD, suddenly my PC became slow, Task Manager showed high RAM usage by Autocad (95% +), ending Autocad via task manager solved high ram usage issue. However, when I opened Autocad to work on the same project, the same issue occurred, this time I didn’t end Autocad via task manager to see what would happen, so after a minute or two of high memory usage, The PC display went black for a moment and then back to the Windows 10 login screen, I logged in and no errors were showing in event viewer. So I opened Autocad for the third time, and the same problem occurred, This time my PC restarted, and once logged in I checked event viewer to see critical error: Event ID 41- Kernel power-system.

Diagnostics:
Windows memory diagnostics: No issue detected.
Prime95/Large FFT/AVX-512 Disabled/45 Minute run time: Fatal error in worker 10 “rounding was 0.49xx expected 0.4” (I did notice that 2 CPU threads were not working at 100% during the torture test)
Prime95/Small FFT/AVX-512 Disabled/36 tests 1 hour 7 minutes run time: no error nor warnings.
Memtest86: completed 2 passes, 6 errors found on first pass, 59 cumulative errors by end of second pass.

Question:
I am please asking for advice on what to do next. Is there a way to isolate anything to see whether the issue is from the CPU or ram or motherboard?

Thank you very much in advance for your help.

 

[Turtle Rig]

Yes Prime95 will throttle your CPU and crash if its the CPU. Looks like your RAM is ok. You should have done a DDU Display Driver Uninstaller and removed AMD and choose clean and restart or shutdown then use the iGPU. Looks like some kind of conflict is going on and that is normal for AMD cards or when you switch to nVidia or if you switch to iGPU and what not. I urge you to run DDU and that will completly remove the driver and all the junk then see what happens and get back to us.✝☮🤷‍♀️🙈

 

[gaming_shrimp]

Yes Prime95 will throttle your CPU and crash if its the CPU. Looks like your RAM is ok. You should have done a DDU Display Driver Uninstaller and removed AMD and choose clean and restart or shutdown then use the iGPU. Looks like some kind of conflict is going on and that is normal for AMD cards or when you switch to nVidia or if you switch to iGPU and what not. I urge you to run DDU and that will completly remove the driver and all the junk then see what happens and get back to us.✝☮🤷‍♀️🙈

Hello again!
Sorry if i'm repeating what you said but i'm not too knowledgeable with this topic and just want to confirm : so you're saying if i can pass p95 large FFT & Small FFT then my CPU and memory controller are ok? and since i have individually tested my ram sticks and passed then they should be fine. I have done as you suggested and used DDU to uninstall radeon software, and i'm now in the process of completing system tests under XMP 2 setting in BIOS, and will get back to you soon hopefully.
Cheers!

 

[Turtle Rig]

Hello again!
Sorry if i'm repeating what you said but i'm not too knowledgeable with this topic and just want to confirm : so you're saying if i can pass p95 large FFT & Small FFT then my CPU and memory controller are ok? and since i have individually tested my ram sticks and passed then they should be fine. I have done as you suggested and used DDU to uninstall radeon software, and i'm now in the process of completing system tests under XMP 2 setting in BIOS, and will get back to you soon hopefully.
Cheers!

Ok sounds good. Hope we get lift off and all turns out ok.✝👶

 

[egda23]

Hello again!
Sorry if i'm repeating what you said but i'm not too knowledgeable with this topic and just want to confirm : so you're saying if i can pass p95 large FFT & Small FFT then my CPU and memory controller are ok? and since i have individually tested my ram sticks and passed then they should be fine. I have done as you suggested and used DDU to uninstall radeon software, and i'm now in the process of completing system tests under XMP 2 setting in BIOS, and will get back to you soon hopefully.
Cheers!

Prime 95 stress test the CPU. If your present testing goes well, things look good.
Mem86 is a purely RAM test

 

[gaming_shrimp]

Ok sounds good. Hope we get lift off and all turns out ok.✝👶

Hello again,
OK, so under XMP 2 profile in Bios, which loads the DIMMS complete default XMP profile, i managed to run P95 small FFT, P95 large FFT, and memtest86 for 4 passes, and no errors were recorded thankfully. I even tested an individual RAM stick in Slot B2 of the motherboard to make sure the slot isn't faulty, and no errors were recorded either thankfully.
So i think I have come to the conclusion that the errors were due to the XMP 1 Asus optimized profile in bios, which is weird as i have been running that setting for almost 2 years and only now the error appears..Would it be motherboard related in your opinion?
But I wanted to thank you for your help and time in trying to help me solve my issue, it is really appreciated, thank you very much

 

[gaming_shrimp]

Prime 95 stress test the CPU. If your present testing goes well, things look good.
Mem86 is a purely RAM test

Hello again,
So i think my CPU should be OK because, like you said, it passed a few trials of P95. I also ran the tests using XMP 2 in Bios, and have not found any errors thankfully, so for now, i am assuming the error was from XMP 1 which used Asus optimized bclk frequency memory parameters, but it's strange why the error appeared now after using XMP 1 for almost 2 years.
Anyway, I Appreciate the time and effort you put in to help me solve my problem, so thank you very much

 

[egda23]

Hello again,
So i think my CPU should be OK because, like you said, it passed a few trials of P95. I also ran the tests using XMP 2 in Bios, and have not found any errors thankfully, so for now, i am assuming the error was from XMP 1 which used Asus optimized bclk frequency memory parameters, but it's strange why the error appeared now after using XMP 1 for almost 2 years.
Anyway, I Appreciate the time and effort you put in to help me solve my problem, so thank you very much

Yes it's strange, but have you changed anything in AUTOCAD as added a module or an upgrade ?

 

[gaming_shrimp]

Yes it's strange, but have you changed anything in AUTOCAD as added a module or an upgrade ?

Do you mean have i added any modules into my sketch? I don't think so, funny thing is as i was working on Autocad on my laptop it also froze on there, maybe the issue is from Autocad.

 

[egda23]

Do you mean have i added any modules into my sketch? I don't think so, funny thing is as i was working on Autocad on my laptop it also froze on there, maybe the issue is from Autocad?

Frankly it has been .... decades that I did not thinker with Autocad. Can hardly pass as a specialist.
But for a software like this, there must be some support from the company. maybe ask them directly ?

 

[gaming_shrimp]

Frankly it has been .... decades that I did not thinker with Autocad. Can hardly pass as a specialist

Unfortunately I'm no specialist either, i'm only starting to learn how to use it, and it's been a real pain haha.

 

[egda23]

Unfortunately I'm no specialist either, i'm only starting to learn how to use it, and it's been a real pain haha.

There is an autocad student community
https://www.autodesk.com/education/home

 

[gaming_shrimp]

There is an autocad student community
https://www.autodesk.com/education/home

oh wow, i had no idea that existed, thank you!

 

[Turtle Rig]

Awesome my friend Im so glad we sorted you out. As for AutoCad there must be a patch or update which you should apply. Perhaps it is not playing nice with Windows 10 2004 version, so keep that in mind. Looks like your sorted out but AutoCad is being a pest ya know.👶✝🤷‍♀️☮🎗👍

 

[Turtle Rig]

Yes you're right, do you recommend a method to test the CPU controller? Would a stress test on P95 Large FFT pick up any errors in the CPU controller since it stresses the controller and RAM together?

I would personally download Aida64 and run a stress test for 1 hour. If CPU doesn't throttle then go red and crash then your good to go my friend.👍💯🎗✝

 

[gaming_shrimp]

I would personally download Aida64 and run a stress test for 1 hour. If CPU doesn't throttle then go red and crash then your good to go my friend.👍💯🎗✝

Thank you, i'll run a stress test on Aida64 as you suggested.
I just have one last question please: I reduced my ram speed from 4000 mhz to 3600 mhz in order to get a more stable system, however when i run memtest86, the ram info is displaying as DDR4 XMP 4000, when it's selected DDR4 XMP 3600 in the BIOS, would you happen to know anything about this? If not then that's understandable, iv'e probably asked too many questions for one thread haha, Thanks again for your help !

 

[Turtle Rig]

Go to Aida64 up on the menus where the stress test is and it says CPUID .... Click that and it will def tell you exactly what your memory timings are and Im positive it will show 1800Mhz which is 3600Mhz effectively dual channel. Also you did the smart thing as 4000Mhz or 3600Mhz is the same thing you will not notice a difference in performance. AMD systems love RAM and Intel is not picky. For AMD I suggest 3600Mhz the sweet spot. For Intel 2933Mhz is recommended but 3200Mhz will work and that its sweet spot anything higher is in a way a waiste. Keep it at 3600Mhz and have your stability my friend. Get back to me after you check in Aida64 up top menu go to CPUID and youll know exactly whats up and also let me know how the stress test goes. If it doesn't throttle and turn red for 1 hour straight then your set my friend and you can enjoy your system without worries of BSODS black screens or crashes.✝🎗💯👽👌

 

[gaming_shrimp]

Go to Aida64 up on the menus where the stress test is and it says CPUID .... Click that and it will def tell you exactly what your memory timings are and Im positive it will show 1800Mhz which is 3600Mhz effectively dual channel. Also you did the smart thing as 4000Mhz or 3600Mhz is the same thing you will not notice a difference in performance. AMD systems love RAM and Intel is not picky. For AMD I suggest 3600Mhz the sweet spot. For Intel 2933Mhz is recommended but 3200Mhz will work and that its sweet spot anything higher is in a way a waiste. Keep it at 3600Mhz and have your stability my friend. Get back to me after you check in Aida64 up top menu go to CPUID and youll know exactly whats up and also let me know how the stress test goes. If it doesn't throttle and turn red for 1 hour straight then your set my friend and you can enjoy your system without worries of BSODS black screens or crashes.✝🎗💯👽👌

Hello again!
So, i downloaded Aida64, and went to tools ---> AIDA64 CPUID , and near the bottom left it says "Memory clock: 1799.1 MHz" I'm hoping that's correct. I Also ran Aida64 system stability test for one hour like you mentioned , and after 1 hour elapsed , i stopped the test and did not see any warning or CPU throttling so i guess that's good?

 

[egda23]

Hello again!
So, i downloaded Aida64, and went to tools ---> AIDA64 CPUID , and near the bottom left it says "Memory clock: 1799.1 MHz" I'm hoping that's correct. I Also ran Aida64 system stability test for one hour like you mentioned , and after 1 hour elapsed , i stopped the test and did not see any warning or CPU throttling so i guess that's good?

Yes that's good, 1800 x 2 = 3600. You have Double Data Rate (DDR) RAM. In reality it's 1800 MHz and 3600 MT/s. But the publicity drpartments of all companies understand that bigger is better and thetefore there has been a magical transformation of units.
But most analysis programs give the real values.
So your system functions as you intend.

 

[gaming_shrimp]

Yes that's good, 1800 x 2 = 3600. You have Double Data Rate (DDR) RAM. In reality it's 1800 MHz and 3600 MT/s. But the publicity drpartments of all companies understand that bigger is better and thetefore there has been a magical transformation of units.
But most analysis programs give the real values.
So your system functions as you intend.

Thank you for confirming ! That's great to hear, i was a little bit worried because it was not exactly 1800 Mhz since it was 1799.1 Mhz, but now that you've confirmed that it's working as it should, i can finally take a break from stress tests.
Thank you once again!

 

[egda23]

Thank you for confirming ! That's great to hear, i was a little bit worried because it was not exactly 1800 Mhz since it was 1799.1 Mhz, but now that you've confirmed that it's working as it should, i can finally take a break from stress tests.
Thank you once again!

These values are always approximates. The only way in having a constant and exact frequeny value would be by using a crystal. And than you would not be able to change this value, short of switching for another crystal

 

[gaming_shrimp]

These values are always approximates. The only way in having a constant and exact frequeny value would be by using a crystal. And than you would not be able to change this value, short of switching for another crystal

Oh that makes sense, thanks for clarifying

 

[Turtle Rig]

Your good to go it looks like. Any further issues get back to us ASAP and well sort you out. But your RAM is fine and also if it did say dual channel you are good to go. As I said and gurus said abouve 1800 x 2 dual channel = 3600Mhz. I think your set my friend.👌👶💯🎗✝

 

[gaming_shrimp]

Your good to go it looks like. Any further issues get back to us ASAP and well sort you out. But your RAM is fine and also if it did say dual channel you are good to go. As I said and gurus said abouve 1800 x 2 dual channel = 3600Mhz. I think your set my friend.👌👶💯🎗✝

Great to hear!
Thanks for your help, it's really appreciated.