Booting error

[HC_Redline]

Hello, I have a problem with my computer, build in May this year. Was perfeckt quick and smooth. Since September 15, it has been crashing the system from time to time. and i had to reset PC like 10 times till it run. Now I haven't been able to turn on my computer for two days. At first I thought it was the system fault, I formatted the entire disk and reinstalled the entire system, but the boot error remained, so i start to check everything. 

I removed 3 sticks of ram and left only one in A2 slot, the computer turned on normally ad quick, no errors,  so i found a problem - RAM. 
so i started to check all the sticks one after one on A2 slot, still works fine, any problems, With 2 RAM sticks in A2 and B2 slots, started properly. I checked all sticks by putting only 2 into slots, mixed the sticks but still max 2 in slots, everything works perfeckt, no problem with booting, zero errors.
After adding one stick to slots A1 or B1 or two to these slots, the booting problem returned. 

Bios updated today, system updated today, all softwares downloaded and updated too.
Any idea what can be a problem?

My setup:
MB - Asus Rog Strix z790 a-gaming wifi II
CPU - Intel i7 14700kf
GPU - Radeon rx 7900 xtx Sapphire
Ram - 4x32 G.Skill Trident Z5 Neo RGB
PS - Corsair RM 850x

[Nate152]

Hello HC_Redline

I see two issues.

1) You're using Trident Z5 NEO which is designed for AMD motherboards.

2) You're combining two memory kits which is not recommended.

[HC_Redline]

That was one kit with 4 sticks, and sticks are for intel, checked that too.

[Nate152]

Could you list your memory part number? 

The reason I ask is, I don't see any Trident Z5 NEO 128GB memory kits. Then we can check the QVL to be sure your memory is compatible.

[HC_Redline]

my bad, i checked order, it was 2 kits, right, but still, half year PC was working well.. i quess if something would be wrong with RAMs, it will show up immediately