(UEFI) Dell XPS 15z L511z modded BIOS

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(UEFI) Dell XPS 15z L511z modded BIOS - and HOWTO

Posts: 397
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Joined: Nov 2011
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jkbuha Offline

BIOS Guru

#1,159

01-09-2013, 03:37 PM

I have 3 ports on my 15z. 2 are USB3, and the other one is a USB2 port but is in the middle of the ESATA port. I guess they put it like that to save space on the thinner chassis. Anyway, when UEFI is disabled I cannot boot via USB from the USB3 drives (I get the Operation System not found error), only from the USB2 drive. Seems like you're getting the same results I am, unless we're both missing something...