PC won't boot after bios update (Gigabyte Aorus B450M)

[Fenezor]

Hi everyone,

 

Recently I've decided to update the bios on my PC, from F2 (stock) to the latest one (F63a I think it was).

 

The process went really straight forward - I used the gigabyte app to update it from an USB stick, and no issues were encountered until the very end when I was asked to reboot my pc for the update to take effect.

 

When the PC started again, it simply did not boot. All the fans are spinning on a high RPM then it lowers, then again rises to a high RPM then lowers again and so on, in a continuous loop.

 

The things I've tried so far, without any success:

1. Removing and re-introducing the CMOS battery

2. Shorting the CMOS pins several times

3.Moving each of the 2x8 RAM modules on each and every one of the 4 RAM slots, then booting with single/both modules installed

4. Replacing the motherboard with a Ggigabyte Aorus B450 PRO

5. Removing the GPU and trying to boot using the hdmi port on the motherboard

 

Could've the bios update somehow bricked my CPU, or maybe both of the RAM modules? because even if the process failed somehow and the motherboard got bricked, this should've not have happened on the new one.

 

My specs are:

MB: Gigabyte Aorus B450M

CPU: AMD Ryzen 2700

RAM: 2x8 Corsair Vengeance DDR4 at 3000 mhz

GPU: Radeon RX 5700 XT

[SpookyCitrus]

 When you did the bios update did you skip straight to the newest one or did you incrementally update it? You have to read the description of each bios update to make sure you don't need to do it one at a time. (Looking into other replies and the bios update warnings myself it looks like there were several updates that needed to be done incrementally, so if you didn't do that then that first board is bricked. There is a slim chance it could have done something to the processor but it's very rare. Considering you replaced the motherboard entirely and it's still having the problem I'd say something else has happened to at least to one of the other components. Have you tested the GPU in another system to see if it is still good? I would test the GPU and ram in an entirely different system. Maybe do a bench test with the new board and your components outside of the case with only the minimal parts to get a post screen.

[SupaKomputa]

you are screwed, you need to update the bios incrementally, as instructed.

Note:
1. If you are using Q-Flash Utility to update BIOS, make sure you have updated BIOS to F32 before F40
2. Before update BIOS to F40, you have to install EC FW Update Tool (B19.0517.1 or later version) to avoid 4DIMM DDR incompatibility on 3rd Gen AMD Ryzen™ CPU

[Hairless Monkey Boy]

There are plenty of warnings and notes between F2 and F63A, I'm wondering if you heeded any of them?

 

Quote

F30: Note : Update AMD Chipset Driver 18.50.16.01 or later version before update this BIOS.

Quote

F40:

1. If you are using Q-Flash Utility to update BIOS, make sure you have updated BIOS to F32 before F40
2. Before update BIOS to F40, you have to install EC FW Update Tool (B19.0517.1 or later version) to avoid 4DIMM DDR incompatibility on 3rd Gen AMD Ryzen™ CPU

Quote

F41-60: Note: Before updating BIOS to this new version, you MUST follow the steps as detailed under BIOS F40 description.

 

[Fenezor]

51 minutes ago, SpookyCitrus said:

 When you did the bios update did you skip straight to the newest one or did you incrementally update it? You have to read the description of each bios update to make sure you don't need to do it one at a time. (Looking into other replies and the bios update warnings myself it looks like there were several updates that needed to be done incrementally, so if you didn't do that then that first board is bricked. There is a slim chance it could have done something to the processor but it's very rare. Considering you replaced the motherboard entirely and it's still having the problem I'd say something else has happened to at least to one of the other components. Have you tested the GPU in another system to see if it is still good? I would test the GPU and ram in an entirely different system. Maybe do a bench test with the new board and your components outside of the case with only the minimal parts to get a post screen.

 Unfortunately I went straight for the latest update, this being the first time I tried to update a bios.

 

Regarding further testing, I've tried the GPU and RAM modules on another system and they seem to work fine.

Also, I replaced the old RAM modules from the main PC with new ones, and the result is the same.

 

My ultimate guess is that something really bad happened on the CPU side but who knows.

 

 

[SpookyCitrus]

1 minute ago, Fenezor said:

 Unfortunately I went straight for the latest update, this being the first time I tried to update a bios.

 

Regarding further testing, I've tried the GPU and RAM modules on another system and they seem to work fine.

Also, I replaced the old RAM modules from the main PC with new ones, and the result is the same.

 

My ultimate guess is that something really bad happened on the CPU side but who knows.

 

 

Yeah that would be my guess as well. 

[LWM723]

If it ain't broke, don't fix it!

[Blue4130]

4 hours ago, Fenezor said:

 Unfortunately I went straight for the latest update, this being the first time I tried to update a bios.

 

Regarding further testing, I've tried the GPU and RAM modules on another system and they seem to work fine.

Also, I replaced the old RAM modules from the main PC with new ones, and the result is the same.

 

My ultimate guess is that something really bad happened on the CPU side but who knows.

 

 

Your CPU is likely fine, it's your motherboard that it borked.

[Guest]

The board has a backup bios (dual bios setup) 

 

I'm not entirely sure, and the manual is pretty much useless....

 

Above the 1st PCI-E slot there is either LEDs or Jumpers. The manual does not specify one or the other and no literature about it......

 

So if those are jumpers, use the B-Bios which is the backup bios incase a bad flash happens on the M-Bios or Main bios chip. 

 

Take a look at that.

If it doesn't post on the M-Bios (if LED is lit up) perhaps wait a bit and see if it automatically switches to the B-Bios. Which the board "Should" do automatically. But like I said, the manual says literally nothing about it.

 

Anyhow, use the B-Bios to reflash the M-Bios and you should be back in shape. Install the bios you had originally on the board so you know it's in working order after the flash. Also, before AND after the flash, clear the cmos.

 

Good Luck!

[Adi.p]

did you manage to solve the problem? the same thing happened to me after a bios update