Question BIOS - First time blackscreen

[FrutyX]

Hey,

I've been wanting to ask about an BIOS behaviour - if it's normal or not.

When I built this PC and started it for the first time, there was nothing but a black screen, so I restarted it, and there was a BIOS warning that settings have been reset (if I recall it correctly), after I confirmed it, there was a black screen again, so I restarted it once more, and finally I was able to enter BIOS and do my settings, save and restart, ever since, my PC is running flawlessly.

However, since we had some power outages due to bad weather, I found out that my MOBO battery is dead, and it happened again, in the same order. So I've been wondering, why can't the BIOS boot for the first time normally (or second time at least), even if reset, is this normal? Like I have to restart the PC twice to get the normal BIOS logo and "del" myself to the BIOS.

Once my BIOS is set (I already have a USB saved profile for this), the PC is running without any problems. My BIOS version is latest (non-beta).

Quick notes: I tried waiting and I also tried pressing buttons, but it seems it wasn't even powering the keyboard anyways.

Spoiler: Specs

Case: MSI Mag Forge 100M (All fans placed)

Motherboard: GIGABYTE B550 GAMING X V2 (BIOS F16)

Power supply: Corsair RM750x (2021)

CPU: AMD Ryzen 5 5500 (No OC)

CPU Cooler: SilentiumPC Fera 5

Memory: Kingston FURY 16+16GB KITS (4x8) DDR4 3200MHz (XMP)

Graphic Card: ASUS Dual Radeon RX 580 8GB GDDR5 (No OC)

SSD (OS): Samsung SSD 860 EVO 250GB (TRIM on)

SSD 2 (Games): Samsung SSD 870 EVO 500GB (TRIM on)

OS: Windows 10 Pro 64-bit

 

[CountMike]

Hey,

I've been wanting to ask about an BIOS behaviour - if it's normal or not.

When I built this PC and started it for the first time, there was nothing but a black screen, so I restarted it, and there was a BIOS warning that settings have been reset (if I recall it correctly), after I confirmed it, there was a black screen again, so I restarted it once more, and finally I was able to enter BIOS and do my settings, save and restart, ever since, my PC is running flawlessly.

However, since we had some power outages due to bad weather, I found out that my MOBO battery is dead, and it happened again, in the same order. So I've been wondering, why can't the BIOS boot for the first time normally (or second time at least), even if reset, is this normal? Like I have to restart the PC twice to get the normal BIOS logo and "del" myself to the BIOS.

Once my BIOS is set (I already have a USB saved profile for this), the PC is running without any problems. My BIOS version is latest (non-beta).

Quick notes: I tried waiting and I also tried pressing buttons, but it seems it wasn't even powering the keyboard anyways.

Spoiler: Specs

Case: MSI Mag Forge 100M (All fans placed)

Motherboard: GIGABYTE B550 GAMING X V2 (BIOS F16)

Power supply: Corsair RM750x (2021)

CPU: AMD Ryzen 5 5500 (No OC)

CPU Cooler: SilentiumPC Fera 5

Memory: Kingston FURY 16+16GB KITS (4x8) DDR4 3200MHz (XMP)

Graphic Card: ASUS Dual Radeon RX 580 8GB GDDR5 (No OC)

SSD (OS): Samsung SSD 860 EVO 250GB (TRIM on)

SSD 2 (Games): Samsung SSD 870 EVO 500GB (TRIM on)

OS: Windows 10 Pro 64-bit

Upon starting. first thing BIOS does is to run P.O.S.T. (Power On System Test) to find, read and check every component. When it's a brand new system BIOS is in factory default mode, it doesn't "know" what components (CPU. RAM. GPU. storage etc.) are connected so it has to find out automatically, that has exact sequence so it may have to take several turns to find them and enable proper mode. Once it goes successfully thru POST it saves all in a part called CMOS, actually memory maintained by CMOS battery. Same happens when you reset it by taking battery out or short contacts on the MB provided for that or battery doesn't have high enough voltage. Some times it may make few cycles to complete and usually displays a message asking you to press F1 button to make or/and save changes. It's possible that CMOS memory gets corrupted from untimely power cutouts because BIOS on operating system has access to it all the time, then it will go back to state it was when MB and BIOS were brand new or last time BIOS was updated and has to start all over again. CMOS battery is not rechargeable so it will drain after some time when MB doesn't get any power. In rare cases, BIOS itself can get corrupted from power problems, should be flashed again with same version or newer.