Question New CPU nightmare - fTPM NV error then black screen....

[MattB74]

Hi all

Bit of a nightmare today...I've just changed my motherboard and CPU today....gone to install a B550 Aorus Elite V2 and Ryzen 5800X.

After connecting everything up, on first boot I get the following error which is detailed here:

New CPU Installed fTPM/PSP NV Corrupted: How to Fix it

You can fix the FTPM NV corrupted error by resetting BitLocker and FTPM through the Command Prompt and BIOS, respectively.

windowsreport.com

I've never come across Bitlocker so assumed it wasn't switched on, so I pressed "Yes"

The screen went black and that's where I'm stuck. I had to hard power the PC down, and switching it back on just gives me a black screen. The fans running, but it doesn't even post. Also, the first time I tried to boot, the power light on my Corsair keyboard came on....now it stays off.

It's like the motherboard is dead, but that doesn't make sense to me. I've tried resetting the CMOS, and also taken the GPU out and connected my monitor to the DP connector on the motherboard....but I get nothing.

Any ideas? I'm really stuck!

 

[COLGeek]

Your CPU/motherboard lacks an integrated video controller, so connecting to the DP port will produce no signal, at all.

What CPU were you previously using?

 

[MattB74]

Ryzen 3600

Yes I realised the mobo has no integrated graphics....not that it makes any different in this case.

 

[COLGeek]

If you still have the 3600, install it into the new motherboard and see if you can access the BIOS.

 

[MattB74]

Just tried that...can't access the BIOS, same issue with the old CPU

 

[COLGeek]

Just tried that...can't access the BIOS, same issue with the old CPU

You reinstalled the GPU as well, correct?

 

[MattB74]

Correct.

Can't even get the power light to come on, on my keyboard

 

[COLGeek]

With the 3600 and GPU installed, disconnect all power sources (power cable, video cable, powered speakers, etc). Then press the power button to discharge any residual power in components (I'm serious). Then remove the motherboard battery, noting which side goes "up". Wait one minute.

Before reconnecting the battery, make sure everything is secure (memory, cables, etc). Just a solid double-check.

Re-insert the battery and reconnect the previously removed connections and try again.

 

[MattB74]

Thanks, I've just tried that.....same issue.

Feels like the motherboard is fried, but don't understand that as I got to the error message the first time the PC booted.

 

[COLGeek]

There have been issues with Gigabyte motherboards. For example:

Info - How to enable Secure Boot on AMD based Gigabyte motherboards

Note: If you are just enabling it to install Windows 11, its is not necessary. Windows 11 just needs PC to be able to run Secure boot, it doesn't enforce it. Valorant is a different story credit to COLGeek for instructions Steps to enable (all AMD-based Gigabyte mobos) Secure Boot. Make sure...

forums.tomshardware.com

Do you have access to another GPU? If so, try swapping that one in for troubleshooting purposes.

 

[MattB74]

No, I don't have another GPU.

I tried to flash the BIOS last night via Q-Flash. . When I hold the button down on the back the USB drive itself flashes, but not the light on the back panel, and the fans don't spin up. Not sure where to go from here...

 

[MattB74]

So I've just spent the last 2 hours re-installing my old motherboard (B450). Put the old CPU in...no power to keyboard or mouse, no posting....CPU error light on the motherboard.

I took out the old processor and put in the new CPU....exactly the same.

I'm utterly stumped and frustrated now. 2 motherboards, 2 CPUs. Nothing works.