[SOLVED] [S.O.S] No signal on computer after changing bios settings

Jun 24, 2021
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Hey,

So I've been trying to install windows 11 on my computer but I needed to activate TPM 2.0 in bios first.
After a few reboots, TPM still wasn't active in windows so I tried to activate safe boot and disable usb legacy.

What a mistake.

My computer was booting up but I had no signal, not even the bios.
I tried resetting my bios (clear CMOS) with Jumper and by removing the battery.

Now my EZ-debug led for BOOT is ON and I still have no signal.

Things I've tried yet :
  • Resetting the bios
  • Starting th computer without any hard drives plugged in
  • Using HDMI (working cable) instead of DP
  • Switching RAM slots, I even tried to boot without RAM (who knows...)
  • Now I'm downloading a windows ISO to see if I can boot from there but I sincerly doubt it.
If it can help, here are my specs :
  • MSI B550-A Pro
  • Zotac rtx 3060ti Twin Edge
  • AMD Ryzen 7 3700x
  • Corsaire vengeance 2x8go 3000MHz
If any one has an idea, i'd be more than pleased. I have some important stuff not backed up yet on my windows install drive.
Even though I lose my stuff, I just want to boot on BIOS:(

Thanks in advance
 
Last edited:
Jun 24, 2021
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Mb indeed, I wouldve backed up once I got the TPM working, for some reason my computer went black before I could even start installing the beta :)

Thanks for the help, very usefull :D
 

USAFRet

Titan
Moderator
Mar 16, 2013
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Mb indeed, I wouldve backed up once I got the TPM working, for some reason my computer went black before I could even start installing the beta :)

Thanks for the help, very usefull :D
No, backups need to happen BEFORE you start down a config change like that.
Actually, backups need to happen ALL the time.

Where you are is like trying to buy car insurance 5 minutes after the crash.
 
Jun 24, 2021
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Disconnect your existing C drive.
Find another drive.
Troubleshoot the whole not booting thing, possibly to include a fresh Win 10 install.
Just tried that, with HDD and SDD without windows installed on both. Still no signal nor BIOS
 
Mar 1, 2021
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when i change the setting the bios stops responding to the keyboard and displays the message "system warning" where the data is usually shown.
 
Jun 24, 2021
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For whomever has the same problem with a similar MOBO, I fixed it flashing the bios this way :

  1. Get the latest bios from your MOBO manufacturer (MSI for me)
  2. Format to fat32 MBR your USB drive (has to be less than 32go)
  3. Power OFF computer and get rid of drives and GPU (worked with CPU pluged in for me)
  4. Flash your bios according to your manufacter instructions (rename MSI.ROM the bios file for msi)
  5. MAGIC your bios is shiny and working
 
Last edited:
Jul 5, 2021
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For whomever has the same problem with a similar MOBO, I fixed it flashing the bios this way :

  1. Get the latest bios from your MOBO manufacturer (MSI for me)
  2. Format to fat32 MBR your USB drive (has to be less than 32go)
  3. Power OFF computer and get rid of drives and GPU (worked with CPU pluged in for me)
  4. Flash your bios according to your manufacter instructions (rename MSI.ROM the bios file for msi)
  5. MAGIC your bios is shiny and working
So 32gb won't work?
And will any USB work? 2.0/3.0/3.1 ecc? I can't make it work with the only USB with less than 32 GB I have (2.0).
When I press and hold the qflash nothing happens...
This is burning my brain
 

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