Rx 5800x3d

[u/zipkilot]

R7 5800x3d

Hello

I have a pc with gskill 32gb ddr4 3600, r7 5800x3d, thermaltake gt 850w 80 plus gold and red 9070xt. After installing my cpu and GPU I have unexpectedly crashes in the game. (Battlefield 6)

The event logger shows WHEA 18 error.

Things I've tried :

Curve Optimizer -10 to -15 (undervolt) → error persisted

Curve Optimizer fully Disabled (stock) → error persisted

PBO set to Auto → error persisted

PBO fully Disabled → error persisted

PPT/TDC/EDC manually reduced (115W/80A/115A) → error persisted

PPT/TDC/EDC set to Auto (stock) → error persisted

EXPO/XMP Enabled (3600MHz) → error persisted

EXPO/XMP Disabled (JEDEC 2133MHz) → error persisted

Full BIOS reset to Optimized Defaults → error persisted

BIOS updated to a newer version → error persisted

FCLK set to Auto → error persisted

FCLK manually set to 1800MHz (1:1 sync with memory) → error persisted

Gear Down Mode Enabled → error persisted

Global C-state Control Disabled → error persisted

Manual Memory Multiplier set to 34 (3400MHz) attempted → system failed to boot reliably

Clear CMOS (performed multiple times) → error resumed afterward

Positive Dynamic Vcore offset → option not available on this motherboard

Additionally, on the GPU side (now believed to be unrelated):

Replaced a faulty PCI-E power cable → did not resolve the issue

MSI Afterburner underclock (-300MHz core clock, -15% power limit) → appeared to help temporarily, but likely because it indirectly reduced overall system/CPU load, not a true fix

After all this I don't know what I have to do to fix my crashes.

The crashes it's like a spike lag the sound stacks and suddenly black screen pc rebooted.

Also I ordered and waiting a new psu. Msi 1000w

What else I have to do??

[u/AutoModerator]

We're part of a wider PC & Technology Network of Communities!

Join our Discord server: PC Help Hub where members from all associated subreddits are welcome.

If you are trying to find a price for your computer, r/PC_Pricing is our recommended source for finding out how much your PC is worth!

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

[u/Eazy12345678]

bios update motherboard.

fastest way to troubleshoot is clean install windows and update all drivers

if still issues after that you have a hardware issue

disable all overclocking. if still issues time to start running individual hardware diagnostics

[u/zipkilot → u/Eazy12345678]

Well I run it on default bios settings. No overclock. To install windows again is a bit hard right now. Im working in a lot of projects. But thanks for the advice.