Windows 10 hangs after long time idling. - ram issue?

[vbt45]

Hi my pc:108500K stock 4800mhz

2x16 GB DDR4 GSKILL 3000mhz XMP

Seasonic Tx-850 Ultra Titanium

Gigabyte Rtx 3090 Gaming OC

Aorus Z490 Pro Gaming

1 TB SSD

I have updated Windows 10 to H20,the newest version. I installed windows 1 month ago with new pc. So far so good,games not crashing all stable.My pc is on 24 hours. Today was idle 5-6hours in desktop. After few hours when i go to use pc, i run Google chrome and then all starts slowly responding. I mean i was able to touch/move mouse, but all stops slowly responding. Chrome,search bar,start button stops responding. Then i make ctrl alt delete and black screen with blue circle. So i make hard reset.It happened first time that hang of system.



Is there somewhere my pc not stable or its a windows thing?

Like i said pc was idle 5-6 hours ,when i go to use pc, i turned on google chrome and then all starts slowly hanging. I checked EVENT VIEWER: Nothing,0 entries about any errors.Thx.

ah ps
NZXT cam was on background and epic launcher + steam.

( ah Windows was 3 days without reboot when that happens )
PS:Running currently Karhu Ram test no errors.

 

[EarthDog]

Idle....please clarify... does that mean its going into sleep mode?

NZXT Cam can cause issues with things sometimes... have you tried without Cam?

 

[vbt45]

Somebody said this to me:"It is most certainly a memory issue of some kind. I would strongly recommend pushing through several runs of Memtest86. The tricky part is determining if it is a faulty DIMM, faulty DIMM slot on the motherboard or the motherboard/memory controller doesn't like the timings/speed. It will require a bit of trial and error using individual sticks and slots."

I am worried that this was related to memory.

 

[Oldschool_OC]

While it is possibly a memory error, I would not say "most certainly".

Some things I have seen in the past that cause similar problems include, but are not limited to:

Intel chipset driver not installed.

Outdated LAN driver or dying network card.

Motherboard bios was flashed and the user forgot to clear/set to defaults, then re-configure custom bios settings.

Windows update was installed and is pending reboot.

Some piece of software has a memory leak.

The list goes on but you get the idea.

 

[EarthDog]

... the only way to find out is to test things...

Start with what has been suggested.