AM4 BIOS info

Users have to manually activate the DDR4 settings instead of them ideally being read out and activated automatically.

Board model: X570 Creator
BIOS version: 3.50
CPU: Ryazen 3950X, and 5950X
RAM: Corsair Vengeance CMK32GX4M2D3600C18

Notes: On BIOS 2.0 this worked great with the XMP profile. On BIOS 3.50 in preparation for 5950X CPU upgrade, the system failed when under memory stress. I was able to manually set DRAM to 3400 / 1700, and clocks 18-22-22-22 and have a stable system. If I try to manually clock to 3666, the motherboard will not power on. After 3 failures it defaults to base speed. I was able to recover to 3400 / 1700. The voltage on XMP was AUTO. On all manual settings I use 1.35 volts.

pokuly wrote: pokuly wrote: Board: B550 Steel Legend BIOS version: 2.00 CPU: 5900x RAM: 2x16GB G.Skill B-Die@3733 My generic Fujitsu Siemens USB keyboard already was 2 times not detected on bootup since the 2.00 release. I have to shutdown and start again. A reboot is not enough. Ryzen Master still shows the wrong value for VDDCR if set in UEFI -> OC Tweaker\External Voltage Settings I quote myself here because i have to add my USB MX-518 mouse hung itself 2 times since the 2.00 update. It stutters and shortly after losses the key associations done in the gaming software. It is 2021 and USB simply being broken in a mainstream product is a bad joke. I regret switching to this AMD crap. I have no idea how i will be able to sell this board with this build in errors.

BETA L2.04 took 3 days before the keyboard was not detected on a cold boot.
I think this happens more often when a device is also connected on the front USB3 onboard connector.

I may try but i have no stability problems at all anymore and i don't see a warning anywhere that says USB doesn't work correctly when the RAM is overclocked.

Edit:
On intel i had AVX offset in the BIOS. Any ideas how to handle multi core AVX sessions?
I have a flac encoder with AVX optimization and using 20 threads bangs at 90°C pretty fast using only 142W without additional PBO limits.
Apps like handbrake video encoding using AVX run around 80°C here.

This forum is only reachable for me a few hours a day here from germany. Am i alone with this?

Havw you tried to clear the BIOS and gave it reset to default values? And also set your memory to default, not XMP. You can do any tweaking after you have a stable sudtem.