High end and power sucking devices may need USB 3.0 or powered hub. Even my USB 3.1 HDD enclosure will not work on some of the USB 3.0 port. I had to use powered USB 3.0 hub for it or USB 3.1 ports.

But my z490 board doesnt show these behaviors. while both b450 and B550 have.

Had to leave some USB ports empty on my AMD else all the ports will go haywire. using a powered hub tends to work better than plugging into multiple usb port on the rear i/o.

MSI b450i gaming plus AC, Gigabyte B550i pro AX

Ryzen 3600, corsair SF750.

Depends on age as well. I had to buy new cable for some of my stuffs too. Been looking for quality USB cables these days.

Yeah, powered usb hub takes power requirements off your USB port.

Changed alot of USB cables and very high quality shielded ones as well primarily because of my audio hobby.

Amd just epic fail here. Powered USB hubs tend to be noisy too, that's why i try to avoid that and only use them for my sim racing rig.

anyways, in the end, the best solution for me is switching to intel dont have to wait till April to know the AGESA fix works or not.

But my z490 board doesnt show these behaviors. while both b450 and B550 have.

Had to leave some USB ports empty on my AMD else all the ports will go haywire. using a powered hub tends to work better than plugging into multiple usb port on the rear i/o.

MSI b450i gaming plus AC, Gigabyte B550i pro AX

Ryzen 3600, corsair SF750.

To be frank, it's a toss up.

Back on Intel system, whenenver I connected an external HDD my wireless logitech K400 would go insane and have a massive amount of lag/drop connection although funny enough other wireless devices like the Xbox controller and Logitech GPro mice is fine.
Connecting an external HDD will also cause DPC latency to spike to insane levels, so audio data streams crackles due to loss in data packets. This hasn't happen on AMD IME.

Both platforms has issues.

Agreed. just this time on my AMD, it's gotten too ridiculous... to the point that i might as well just not use my pc at all, as you can recall at the nvidia tered, After swapping out the 3080, my pc gotten even more unstable that i just left it off for 2 months

Could be due to die deterioration too. my ryzen also start to show signs weeks after use and then it's just an endless troubleshoot.

your ram will be the first suspect in this whole case. just run them at 2444mhz for a few months and see. Remove most components, set pcie to gen3, use only 1 hdd drive and monitor. reformat your PC.

Or just go with intel if youre tired of AMD's reliability issues.

as for the idle voltage and temps... Just forget about it and let the cpu bake itself. it's a ryzen behavior and not a bug. If you want it to truly idle then you just check your task manager and close everything that is running, especially afterburner and all monitoring apps.

They all happens when the cpu in idle mode for random WHEA also when in bios default settings with NO XMP enabled. Make sure it's not caused by other issues or drivers or any OC settings.
Your only best solution is to RMA the cpu. And welcome to the club. another casualty to add to the statistics in https://www.overclock.net/threads/replaced-...eboots.1774627/
5950x are very prone to random WHEA blue screen.

A lot of it has also gotta do with wintrash. These issues seldom happen over on Linux or Mac, no matter the hardware used.

https://www.tomshardware.com/news/amd-issui...-in-early-april

AMD says a BIOS fix for the USB issue is coming in April... I wonder what the "fix" really entails?

Think I just discovered the reason the random blue screen and sometime reboot without bluescreen.
I overloaded my PSU.
I forgot I replugged my GTX 970 back into 5950x mainboard.......and the psu is Seasonic M12 520W PSU.....
Gotta purchase proper PSU next time. For now, 95W eco mode.
Still need to figure out what is going on the voltage.
Anyone with Zen 3 CPU here can check their CPU Core Voltage (SVI2 TFN) using HWinfo and mainboard model?
I wonder if this is specific to Zen 3. 

https://www.tomshardware.com/news/amd-issui...-in-early-april

AMD says a BIOS fix for the USB issue is coming in April... I wonder what the "fix" really entails?

Or maybe it fixes nothing, as usual

Think I just discovered the reason the random blue screen and sometime reboot without bluescreen.
I overloaded my PSU.
I forgot I replugged my GTX 970 back into 5950x mainboard.......and the psu is Seasonic M12 520W PSU.....
Gotta purchase proper PSU next time. For now, 95W eco mode.
Still need to figure out what is going on the voltage.
Anyone with Zen 3 CPU here can check their CPU Core Voltage (SVI2 TFN) using HWinfo and mainboard model?
I wonder if this is specific to Zen 3. 

Anyone with Zen 3 CPU here can check their CPU Core Voltage (SVI2 TFN) using HWinfo and mainboard model?
I wonder if this is specific to Zen 3. 

Mine is hovering around 1.3V, rare drops to 1.0-1.2V. It's not truly idle though, HWInfo, MSI Afterburner, couple other apps are still running. No WHEAs reported since I was tuning Curve Optimizer early last month.

GTX 970 is a 150+W TDP card, it would be rather poor for the PSU if it's already overloading from that.

U re sure PSU ? 970 doesn't really consume that much power.

Mine is hovering around 1.3V, rare drops to 1.0-1.2V. It's not truly idle though, HWInfo, MSI Afterburner, couple other apps are still running. No WHEAs reported since I was tuning Curve Optimizer early last month.

GTX 970 is a 150+W TDP card, it would be rather poor for the PSU if it's already overloading from that.

5950x 200w + 150w = 350w, should be still within the safe zone. Perhaps the eco mode is what preventing the whea errors. afterall it seems it was running fine until recently.

My 5900x does go down to 1.08-1.1v during idle. By idle I really do mean absolutely ZERO process happening. I have to kill RTSS, Afterburner, iCUE and LGS for that to work.

On my 3900x, it was hovering around 1.28-1.35v on idle.
Hope it's not nerfing PCIE-4.0.

Mine is hovering around 1.3V, rare drops to 1.0-1.2V. It's not truly idle though, HWInfo, MSI Afterburner, couple other apps are still running. No WHEAs reported since I was tuning Curve Optimizer early last month.

Hmm......guess I am the only one with this voltage issue. This is really strange. I can only hope that constant 1.45v cpu core voltage (SVI2 TFN) will not kill the cpu.....

There is nothing running on my 5950x PC, yet the voltage stay at 1.45V.
Selecting Power Saver will drop the voltage to 1.0V.
But I thought ZEN 3 doesn't need special power plan? :confused:

5950X PBO mode + OC-ed GTX970 + six 3.5" HDDs + 2 NVME SSDs + 4 external HDDs + 4 DIMMs RAM OC-ed + X570 mainboard (chipset, soundchip, LAN chips, onboard bluetooth + WLAN etc) + 4 120mm fans.

I think it way over what Seasonic M12 520W PSU can supply considering the efficiency is 80% = 416W effective.

Using "ECO Mode 65W" at BIOS limit the actual CPU usage to 95W. Pretty much no random reboot now.

Guess the overheated PSU has issue delivering low voltage/current after heavy loading. When I think about it, the random reboot blue screen and no blue screen reboot happened after I ended a heavy session.

You misalculated the 80plus PSU, your PSU still using 520W at full load, but it draw 600+ Watt from socket, remaining 20% become heat, that's what 80plus means.
The higher the efficiency, the lower the heat.