[Solved] Optiplex flashes Dell splash screen twice when booting

[joddle]

I have a Dell 7040 but when it is booting, the splash screen with the Dell logo comes up twice before W10 loads which I thought was a bit odd.

The latest bios was installed when I first got the PC.

 

The pc now has a 1tb M2 drive on the motherboard where the OS resides plus two mechanical sata HDDs and one sata SSD

The sata SSD is where the OS was before I installed the M2 drive but it has since been reformatted and is now used simply as another drive.

 

The PC is pretty quick to boot up to W10 (17 seconds) but not as fast as when I first had it (around 10 seconds) as now it seems to be trying to do something twice each time!

 

I have not changed anything in the BIOS yet as I don't want to make things worse but any ideas what may be happening here please??

Edited April 27, 2020 by joddle

[KenB]

Hi,

Have you had a look at the boot order in the BIOS ?

 

Make sure the M2 drive is first in the Boot Order.

[joddle]

The bios is set to UFEI and the M2 drive is the only once it has in the boot sequence. If I press F12 and select a one time boot on the M2 drive, the Dell splash logo only comes up once. If booting from cold then it still comes up twice with a small pause between!

[KenB]

Have you tried swapping the SSD and M2 connections on the Motherboard?

 

Otherwise I am out of ideas :(

 

I did read somewhere that with some Dell machines this is "normal"

I know yours didn't do this originally.

[joddle]

Thanks Ken - I had thought of doing that but then decided to read more about the bios setup and eventually found there is a toggle between UFEI with or without legacy ROMs - turning that off seems to have sorted the problem and the machine does now boot a lot faster and with only once splash screen - I have not noticed any disadvantages but of course can always reverse the setting if need be.

[KenB]

Glad to hear that you have sorted your problem :)