# Lambda Dual/Quad Booting into BIOS/UEFI

## post by mpb on Apr 22, 2019

If your machine doesn’t boot into Ubuntu when you power it on and you’re getting this screen:

## Ensure SATA cables are securely attached to motherboard and drive bay

_Open the left and right side panels of the machine’s case (you will need to remove screws). On the left side of the machine (when facing the machine’s front), ensure that the SATA cables are securely attached to the motherboard:_

_On the left side of the machine (when facing the machine’s front), ensure that the SATA cables are securely attached to the drive bay:_