Very strange severe lagging PC issue after a complete new build. Tried everything can't work this one out so asking for help desperately pls

TonyTurbo78

TonyTurbo78

TonyTurbo78

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Hi guys. I'm really not sure what section of the forum this would belong too...At the moment it could go anywhere, I'm totally befuddled. Complete new build from top to bottom on this one. Here are the specs firstly:

MSI MAG Z790 TOMAHAWK WIFI ATX
Intel Core i9-13900KS
NVIDIA RTX 4090 FE 24
G.Skill Trident Z5 RGB 64 GB (2 x 32 GB) DDR5-6400 CL32 Memory
Sabrent Rocket 4 Plus 2 TB M.2-2280 PCIe 4.0 X4 NVME Solid State Drive
Sabrent Rocket 4.0 500 GB M.2-2280 PCIe 4.0 X4 NVME Solid State Drive
NZXT Kraken X73 73.11 CFM Liquid CPU Cooler
Corsair HX1200 Platinum 1200 W 80+ Platinum Certified Fully Modular ATX Power Supply
Lian Li O11D XL-X ATX Full Tower Case
9x Lian Li SL120 Fans and controllers

So the issue that's occuring after installing Windows 11, everything is complete stock, fresh install. Installed a few games to test but noticed a strange issue with every game and also when just sat on desktop.

After 5 or so minutes gaming or even just sat on the desktop browsing, the PC drops to maybe 5fps or 10fps for about 30 seconds, the whole PC get severely laggy, mouse input, keyboard input, everything, PC just starts running like an absolute dog. This has also happened on Windows Desktop, when the severe lag starts anything I typed on the keyboard takes 20 or so seconds to start typing, just when the PC comes out of this extreme lag state all the text then catches up.

- So checked MSI motherboard support page, turns out bios on motherboard was shipped with a version 7 months old. Flashed the bios thinking this has got to be the cause but no, still getting the same issue.
- Checked everything looked fine in bios, using the XMP profile etc all looks fine.
- So started all the simple things, going over all the driver updates for everything, reinstalling GPU driver etc, retest but still the same lagging in gaming after 5 or 10 minutes.
- Checked all Windows power settings all seems fine.
- Reinstalled Windows 11 again same issue
- Reinstalled Windows 11 on the other M.2 SSD, redid all drivers etc but again same issue in games.
- Took out the 4090 and put in an old 1080ti, reinstalled drivers but again same issue although it took a little longer to reproduce the sudden drop in frames and sever lag for 30 seconds.
- Tried different power limit for the GPU after installing MSI AB, 100, 90, 80, 60 all the same.
- Changed a variety of CPU frequency and clock speeds but still the same issue after a few minutes

Things I've not tried yet but planning on when I get home.

Running 1 of the memory sticks, then the other if issue still there
Changing PSU cables (the ones to motherboard and GPU for sure)
Swapping out PSU for the old 1000w PSU

Then after that I'm completely stumped. If you would be so kind to add anything towards the troubleshooting, maybe someone has experienced the same issues and rememeber the posts etc. Just looking for all the help I can possibly get right now as I'm baffled. What is the likely cause of such issue do you think? Maybe a motherboard or CPU fault?

Thanks in advance
 
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You need to timestamp the events and look in the event log to see what happened and correlate between events. As @Straz suggested you need to see if CPU usage is high, or GPU or both. Check the scheduled task manager to see if the OS has anything scheduled for the times when you had these slowdown events.
 
Would they be high when it's sat on desktop and im just browsing the internet thought? That would have to be unusually high on Desktop to be maxing out a 13900K and 64GB of DDR5 6400mhz on an M.2
 
I'd be really tempted to order a cheap 13th gen i3 processor and drop that in to see what difference it makes. The fact that you said it still occurred when swapping the 4090 to a 1080Ti suggests it's not a GPU issue - and I always tend to find that anything related to slowdown/catch up (like you've described with the notepad text) is CPU related.

You've not mentioned temps so I'm assuming there's no temperature related issue with the CPU?
 
t2na said:
I'd be really tempted to order a cheap 13th gen i3 processor and drop that in to see what difference it makes. The fact that you said it still occurred when swapping the 4090 to a 1080Ti suggests it's not a GPU issue - and I always tend to find that anything related to slowdown/catch up (like you've described with the notepad text) is CPU related.

You've not mentioned temps so I'm assuming there's no temperature related issue with the CPU?
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No Issue what so ever on temps...GPU and hotspots well within what would be classed as hot, between 53C and 60C on GPU, 65ish on hotspot. CPU is water cooled with that AIO, temps below 65c in full load gaming.
 
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Joxeon said:
Yeah click on resource monitor when in task manager and it'll tell you what processes are eating up your CPU RAM etc.
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Yeah, just needed to confirm that's what you meant by monitoring usage. I did have a look last night, had it open on another screen, along with HWmonitor and MSI AB overlay. I'll double up today though. I never looked in Event Manager, maybe that would be telling.
 
I'd start with testing your memory like you said, also in Windows make sure that the .NET compilation isn't running (I wouldn't expect to see this much of a slowdown on an SSD though). You can force .NET to update everything by running ngen.exe /update. You will need to do this in each of the following folders:
C:\Windows\Microsoft.NET\Framework\v4.0.30319 and C:\Windows\Microsoft.NET\Framework64\v4.0.30319
 
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chrislip said:
I'd start with testing your memory like you said, also in Windows make sure that the .NET compilation isn't running (I wouldn't expect to see this much of a slowdown on an SSD though). You can force .NET to update everything by running ngen.exe /update. You will need to do this in each of the following folders:
C:\Windows\Microsoft.NET\Framework\v4.0.30319 and C:\Windows\Microsoft.NET\Framework64\v4.0.30319
Click to expand...

thanks will add that to the list of things to try
 
Have you tried the RAM at the slower JEDEC speeds just to rule it out? I would include that in the testing too, in case XMP is on borderline stability.
 
CapitalOne said:
Also, I think the free version of Aida64 will allow logging, so you may get some clues if you do that.
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Thanks will try
Orcvader said:
Have you tried the RAM at the slower JEDEC speeds just to rule it out? I would include that in the testing too, in case XMP is on borderline stability.
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Yes tried different memory speeds.
 
This is a new build, right? Could it be running Windows Update or indexing?

Pardon the (hopefully) silly questions but have you checked that the Kraken CPU cooler is actually fitted to the CPU? You did remove the protective film if it was new, didn't you? You did repaste it if it was from another PC, right?
 
Quartz said:
This is a new build, right? Could it be running Windows Update or indexing?

Pardon the (hopefully) silly questions but have you checked that the Kraken CPU cooler is actually fitted to the CPU? You did remove the protective film if it was new, didn't you? You did repaste it if it was from another PC, right?
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yes of course removed that, I know you have to ask the silly questions sometimes. I've built maybe 30 to 40 high end PCs over the years for myself and customers, not my first rodeo..Not being funny replying to the silly question, just trying to explain where my knowledge set it kinda. And yeah Kraken cooler is properly bolted on, temps are a result of correct installation too. Only finger tight each corner nothing over tightened down on the cores. Every part is 100% new, inculding the Grizzly that was applied.
 
BIp4H0r.jpg


So just got these when Cyberpunk running. Sometimes during the non responsive laggy moment, all information in Task Manager is freezing, it's not live updating so it's kinda hard to take the screenshots. Can do with phone but then its harder for you to be able to zoom in and have a look.
 
Take a look at Task Manager with all cores visible and see if one of them is maxxing and if so look at the process that's causing it. You may need to use Process Explorer.

Have you tried disabling the CAM software?
 
TonyTurbo78 said:
After 5 or so minutes gaming or even just sat on the desktop browsing, the PC drops to maybe 5fps or 10fps for about 30 seconds, the whole PC get severely laggy, mouse input, keyboard input, everything, PC just starts running like an absolute dog. This has also happened on Windows Desktop, when the severe lag starts anything I typed on the keyboard takes 20 or so seconds to start typing, just when the PC comes out of this extreme lag state all the text then catches up.
Click to expand...

Something really similar to this happens to me occasionally and I suspect the culprit is either a Windows update, or an update pushed to Chrome and it seems to repeat once every 3 months or so. The trigger for the lag is two things: switching between full screen and windowed mode (e.g. when watching iPlayer), or any page in the browser which includes video, though oddly enough, while Netflix still does it when watching in a windowed mode, YouTube does not.

Obviously I don't know if that's the same issue you're experiencing, but if it is, I'd look at what apps/software you have running that might be switching your card into 3D mode.
 
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