PC freezes when posting

[Ole_G]

Hi,

My specs:
Mobo: ASUS ROG Strix B850-G Gaming
CPU: Ryzen 7 9700X
RAM: ADATA XPG 32GB KIT DDR5 6000MHz CL30 RGB Lancer
GPU: MSI RTX 4070s 12G Ventus 2x oc
PSU: ASUS ROG Strix Thor 850W Platinum II
SSD: Samsung 990 EVO plus 2TB, WD Blue SN5000 4TB
Cooling: Custom water loop with 2x360mm rads (CPU+GPU)

PC worked perfectly for a 1,5 year. Month ago it started randomly freezing when posting wiith white mobo led (VGA led)
After shutting down pc in freeze, pc goes directly to bios and resets bios config, then it goes to win just fine, but with reseted bios settings. After reboot it loads my bios settings and loads windows just fine. After next shut down or reboot it does that process again.
I tried load optimal default bios settings and after 3rd reboot pc freezes again.
I tried  other 12VHPWR cable, same issue, tried remove 1 ram stick, same issue, tried other ram stick, same issue. Tried unblug everything unnecessary, nothing happened.
In windows pc works perfectly with no issues, no artefacts, no black srcreens, nothing. I tested cpu, gpu and ram in OCCT and it showed no errors.

Anybody have any ideas?
Thanks everyone for reply.
Sorry for my english, it´s not my language.

[DoctorNick]

34 minutes ago, Ole_G said:

Hi,

My specs:
Mobo: ASUS ROG Strix B850-G Gaming
CPU: Ryzen 7 9700X
RAM: ADATA XPG 32GB KIT DDR5 6000MHz CL30 RGB Lancer
GPU: MSI RTX 4070s 12G Ventus 2x oc
PSU: ASUS ROG Strix Thor 850W Platinum II
SSD: Samsung 990 EVO plus 2TB, WD Blue SN5000 4TB
Cooling: Custom water loop with 2x360mm rads (CPU+GPU)

PC worked perfectly for a 1,5 year. Month ago it started randomly freezing when posting wiith white mobo led (VGA led)
After shutting down pc in freeze, pc goes directly to bios and resets bios config, then it goes to win just fine, but with reseted bios settings. After reboot it loads my bios settings and loads windows just fine. After next shut down or reboot it does that process again.
I tried load optimal default bios settings and after 3rd reboot pc freezes again.
I tried  other 12VHPWR cable, same issue, tried remove 1 ram stick, same issue, tried other ram stick, same issue. Tried unblug everything unnecessary, nothing happened.
In windows pc works perfectly with no issues, no artefacts, no black srcreens, nothing. I tested cpu, gpu and ram in OCCT and it showed no errors.

Anybody have any ideas?
Thanks everyone for reply.
Sorry for my english, it´s not my language.

Update BIOS or reset bios/Clear CMOS. Test bios in default state (AUTO). Leave ram at auto. 

If everything works ok. Then its the expo settings that isn't working. 

If you've enabled PBO. Curve optimizer for example setting a negative value its likely that this is the culprint and your system is simply unstable. 

[Ole_G]

I have latest non beta bios (1654)
I tried bios in default without any tuning. Tried expo II, expo I and without expo
I tried default cpu settings, tried PBO curve optimiser -5, -10, -15, Tried manual overclock (Undervolt)
Nothing worked. Everytime the same issue.

[leclod]

(by the way, did you ever check for a FW update of the gpu with MSI Center ?)

[Ole_G]

14 hours ago, leclod said:

(by the way, did you ever check for a FW update of the gpu with MSI Center ?)

Thank you,
I tried it now and there are no updates for my gpu.
 

[Ole_G]

So i took out CMOS battery
Now is everything in default settings and it´s stable for now.
Thanks everyone for help.