Weird Random Periodically Freezes

[Ringowu1234]

This is a 3yr old PC, which I've upgraded quite often for the first 2 years (haven't upgraded much since I received the 2080ti early last year). My last modification would be adding the 2nd monitor maybe a month or 2 before this freeze started to happen.

 

Couple months ago, without any change to system, my screen would freeze (this will always happen), mouse not moving (sometimes mouse can move still), and music would stutters (sometimes it keeps on playing even during freeze) for around 5 seconds, then returns back to normal like nothing happened.

This happens while I game but also when I'm doing light tasks such as browsing on Chrome, or sometimes while opening a folder on desktop.

 

There's no pattern to when this would happen. Sometimes I can use the PC for whole day and all normal, sometimes it will happen about once every hour.

 

There's no performance lost before or after freezing. CPU clock/temperature, GPU clock/temperature, and FPS in game all appear normal with no unusual fluctuation according to Afterburner HW monitor, even during the freeze period (the graphs continue on unaffected)

 

My main suspect it's my GPU because I have aftermarket cooler, and audio seems to be unaffected sometimes during freeze. However running 3DMark will give me usual result, and I pass all stress tests. OCCT 3D shows 0 error as well during a 2 hour test.

 

Temperature under stress tests is CPU: 80+- GPU: 75+-.

 

Gaming temperature is way lower than that at about 65+- both. 

 

I have OC on both my CPU and GPU but it still happens when I test it at stock speed.

 

I'm on latest BIOS & GPU driver and Windows 10 fully updated.

 

Much appreciated if anybody can help me diagnose what's wrong. Thank you again!

 

My specs:

CPU: I7-7700k OC @ 4900Mhz with Dark Rock Pro 4 & delided

Motherbord: ASUS Maximus IX Formula

GPU: MSI Trio RTX 2080ti OC @ 2000Mhz with Morpheus II (2x bequiet silent wings 3) mod.

RAM: HyperX Predator RGB 8GB 3333Mhz x 4

Power: BeQuiet Straight Power 11 850W

Monitor:

1. Acer XZ321QU 2K 144hz

2. Acer ET221Q 1080P 60hz

Storage:

1. System: Samsung 860 Evo 2.5in 250GB

2. Storage: Samsung 860 Evo M.2 1TB

3. Storage: some 3TB HHD i don't remember the spec