I installed a new motherboard and it will only boot to BIOS ive tried changing the boot device to a SATA SSD but it will only show UEFI disk HDD etc

[Obviouslyame]

So i bought a new motherboard (MSI MPG gaming edge wifi) its a z490 motherboard with the new core I7 and it only boots to BIOS i tried changing the boot but it will only show the UEFI boot stuff. It detects the drives but it wont boot to them

[Velcade]

List out your parts.  Including drives you have attached to your motherboard.

[Kilrah]

Did you actually install an OS...? 

[Obviouslyame]

Just now, Velcade said:

List out your parts.  Including drives you have attached to your motherboard.

Motherboard: MSI MPG gaming edge wifi z490

 

Proccessor: Intel core I7 10700

 

RAM : 2x 8gbCorsair vengance pro 3200  2x 8GB corsair vengance LPX 3000

 

Sandisk SSD plus 1tb

 

Samsung 970 evo 1TB m.2

 

Kingston 240 GB m.2

 

ASUS rtx 2060 OC

 

ASUS disk drive

 

750 watt power supply

 

I didnt have the cable for CPU pwr 2 so i didnt plug it in

[Obviouslyame]

Just now, Kilrah said:

Did you actually install an OS...? 

Yes i has it installed on a drive before i just replaced the motherboard and CPU

[Kilrah]

And how was it installed on the other machine?`Of said machine already had an install on another drive then Windows won't have put a bootloader on the drive.

 

You should do the install on the new machine with only the boot drive connected, then add the others.

[Velcade]

4 minutes ago, Obviouslyame said:

Sandisk SSD plus 1tb

 

Samsung 970 evo 1TB m.2

 

Kingston 240 GB m.2

Which drive has your OS?  

 

Also note that SATA 2, 5, and 6 will be disabled with two m.2 drives installed.

[Obviouslyame]

Just now, Kilrah said:

And how was it installed on the other machine?`Of said machine already had an install on another drive then Windows won't have put a bootloader on the drive.

 

You should do the install on the new machine with only the boot drive connected, then add the others.

It is not a new machine i only replaced the motherboard and proccessor nothing else

[Obviouslyame]

Just now, Velcade said:

Which drive has your OS?  

Sandisk SSD plus

[Kilrah]

Did you try booting from all of the drives?

[Velcade]

Which SATA port do you have the Sandisk plugged in to?  Try removing the two m.2 drives and see what happens

 

[Obviouslyame]

Just now, Kilrah said:

Did you try booting from all of the drives?

Thats the thing it detects the drives but i cannot choose them at a boot device

[nick name]

Do you turn on Legacy Mode in BIOS?  Or CSM?

[Obviouslyame]

Just now, nick name said:

Do you turn on Legacy Mode in BIOS?  Or CSM?

It is currently in UEFI mode should i switch it to CSM?

[nick name]

Just now, Obviouslyame said:

It is currently in UEFI mode should i switch it to CSM?

Does it have a Legacy Mode?  And yeah -- try CSM.  

[Obviouslyame]

Just now, nick name said:

Does it have a Legacy Mode?  And yeah -- try CSM.  

It does not have legacy mode but its booting into windows with CSM mode

[nick name]

1 minute ago, Obviouslyame said:

It does not have legacy mode but its booting into windows with CSM mode

There we go.

 

In my CSM menu it has Legacy options and I didn't know what your options or how things were labeled, but it seems like we got it sorted anyway.  High five.  

[nick name]

You can convert the current MBR to GPT if you want to.  Super easy.  Then you shouldn't need to worry about CSM mode.  

[nick name]

https://www.windowscentral.com/how-convert-mbr-disk-gpt-move-bios-uefi-windows-10