I'm working on a project using a Lenovo Y50 laptop, wherein I am building a custom case for the guts so as to run it like a desktop, i.e., headless. I cannot get the laptop to default to the external monitor at boot, however, and since the Y50 uses an InsydeH20 3.7 UEFI BIOS with very limited options, I can't change the default monitor (which I assume would be an option in these advanced settings, going by past laptop BIOSes I've seen). The first day I had the laptop, I somehow accessed the advanced settings of this BIOS via keystrokes, which from what I can recall, was from mashing the F2 and Delete keys in some sequence during POST. I cannot replicate it now, and I've tried just about every key combo, including the "A" key method, which doesn't appear to work on Lenovo machines. Switching from UEFI to Legacy boot did not give me any additional options, either. So there is certainly SOME way to access the advanced settings, even if it's not intended -- or maybe it was just a fluke. I've Googled until I think I can't Google anymore (which I how I came across the MDL BIOS forums), with no answers yet. I would rather not use a modded BIOS unless I absolutely must. Any gurus here happen to know the arcane key combo I stumbled upon...or is it bad news for me? TIA.