Computer stutter / buzz for a split second at random times

[papajo]

OS: windows 10 64bit everything updated (including all the 3rd party drivers etc).      

CPU: i7 8700     

Ram: samsung b die 3200 cl14 16gb (2x8)     

GPU: Sapphire impulse RX 580 8gb      

MoBo: Asrock z370 taichi latest bios.     

PSU: Seasonic titanium grade 850 watt     
    

Ok so what happens is that the computer stutters/buzzes for       a split second and everything is normal before or after that event (no blue screens no programs exiting or hanging no corrupted data or lost files etc) 

At first I thought it could be signal interference coming from the analog side of my audio (since I plug my headphones in the frontside jack of the case which connects through a long cable to the MoBo and essentially is an antenna that can pick up interference.. ) 

But its not only the buzz noise/stutter the computer freezes for a split second too so its not just the audio... e.g if I watch a video the frame-rate will stutter for a split second too or if I play a game the game will stutter for a split second but without crashing etc. 

Everything in my system is brand new and well cooled.. what the heck could go wrong? 

The biggest curiosity (besides the event it self) is that nothing crashes or corruptions etc the computer is fully functional without any issue except this random even that happens like 4-5 times during lets say an 8 hour session with the computer..

Stress tests and burning test or memory tests all run without an issue for hours 

[porina]

How often does it happen? Is it regular or randomly timed? Does the mouse pointer if moving at the time also stutter? What storage devices are in system?

[papajo]

18 minutes ago, porina said:

How often does it happen? Is it regular or randomly timed? Does the mouse pointer if moving at the time also stutter? What storage devices are in system?

It happens between random intervals and can vary from like 2 to like about 5 or 8 times in an 8 hour session with the computer depending on the day (but NOT depending on the use I could do anything like just webbrowsing or gaming a very demanding game etc)

 

Yes the mouse stutters along with everything else (frames in a game or video/movie) for a split second that's why I excluded the scenario that my audio analog  output path is at fault. 

 

There are 2 SSD's and 2 HDDs and 1 bluray recorder drive(Also good Idea for asking me that thanks )

 

One HDD is not displayed in Windows although it shows up in the bios. 

The HDD is 100% working and almost brand new the issue is probably a stupid sata configuration my motherboard has (it has like 8 SATA inputs but essentially when you use them you can't use a single m.2 slot and on top of that it seems that you cant use all of them even if its just sata....  I assumed that was the reason it does not show up and  I was going to review my sata port placement by re-reading the manual... I think though that I placed both HDD ports in place that should not interfere with each other according to the manual. 

 

The reason I did not already try to fix that issue is cable management on the right side of my case... it will be really though to rearrange the cables again and close the lid  (<--- that could also be a possible source for my problem but I am excluding as of now because  it does not seem analog in nature since the stutter is system wide and no crashes or blue screens etc happen so I doubt some electromagnetic interference between two cables that are very close together could make such a subtle problem and nothing else. ) 

[porina]

Ok, so quite rare and not regular. That rules out some ideas I had for software related stuff.

 

Disk is a possibility, if Windows doesn't get the response it expects from a disk, it can cause system freezes. More likely to be noticed if the disk is going bad. Definitely worth a go at sorting out the disks.

 

Is the missing disk not detected at all by Windows? Check in device manager. If it is there, chances are you need to create a partition on it. If not, then yes you have something else to sort out. Try running something like CrystalDiskInfo just to check if there are any obvious problems with any of the disks. You can also try unplugging the cable from the mobo to isolate a drive while troubleshooting.

[papajo]

3 minutes ago, porina said:

Ok, so quite rare and not regular. That rules out some ideas I had for software related stuff.

 

Disk is a possibility, if Windows doesn't get the response it expects from a disk, it can cause system freezes. More likely to be noticed if the disk is going bad. Definitely worth a go at sorting out the disks.

 

Is the missing disk not detected at all by Windows? Check in device manager. If it is there, chances are you need to create a partition on it. If not, then yes you have something else to sort out. Try running something like CrystalDiskInfo just to check if there are any obvious problems with any of the disks. You can also try unplugging the cable from the mobo to isolate a drive while troubleshooting.

The disk issue is excluded.. my fault  I forgot that I checked that issue the day before yesterday now it shows up (and the buzzing existed before when it did not show up and now while its showing up without issue) 

It was a cable thing it was not plugged in 100% 

 

there is also a card reader connected as a USB device using the mobo internal USB port. 

[porina]

I'd still use CrystalDiskInfo to look at the stats of all disks. For mechanical disks in particular, check if there are any bad or pending sectors.

[papajo]

1 hour ago, porina said:

I'd still use CrystalDiskInfo to look at the stats of all disks. For mechanical disks in particular, check if there are any bad or pending sectors.

All disks show up as healthy on CrystalDiskInfo