General Discussions

[peter359]

Hi guys, I'm writing here because of a problem with my desktop PC. After Christmas I decided to upgrade my old processor (Ryzen 5 3600) with a Ryzen 7 5700x+3d combined with an MSI b450 tomahawk max motherboard, and also adding two banks of 2×8 GB RAM to my old 16GB (in total 32GB ).
However, I was aware that I had to update the bios to make the mobo and cpu compatible, because the mobo was ready 3000. However, as soon as the new cpu was installed, the pc wouldn't turn on, so I thought it was the bios. So, since the PC wasn't turned on, I tried to update it with the flash bios button, but there was no LED so I unplugged and reconnected the USB stick a couple of times, and here I later realized that I had made a mistake. The next day I replaced the old CPU and in that case the PC turned on but there was no display, so in a panic searching online I tried to reset the bios by disconnecting the battery, however nothing changed. Now I don't know what to do anymore, I would like to upgrade the CPU and have 4x8 GB RAM. If further information is needed, there are no problems.

[FunkZ]

Per the MSI B450 Tomahawk Max manual (page 41)

https://download-2.msi.com/archive/mnu_exe/mb/E7C02v1.5.pdf

download the latest BIOS file that matches your motherboard model from MSI®
website and rename the BIOS file to MSI.ROM. And then, save the MSI.ROM file to the
root of USB flash drive. Only the FAT32 format USB flash drive supports updating BIOS by Flash BIOS Button.
1. Connect power supply to CPU_PWR1 and ATX_PWR1. (No other components are
necessary but power supply.)
2. Plug the USB flash drive that contains the MSI.ROM file into the Flash BIOS Port
on rear I/O panel. (bottom port beside the button)

3. Press the Flash BIOS Button to flash BIOS, and the LED next to the button starts
flashing.
4. After the flashing BIOS process is 100% completed, the LED would be off
simultaneously.