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GIGABYTE GA-78LMT-USB3 USB devices do not work, and can not boot from USB flash drive?

Paul FergusonAug 28, 2014, 7:16 AM

So, I have a GIGABYTE GA-78LMT-USB3 motherboard in my new computer I just built. None of the lights come on, on my keyboard, mouse or flash drive that I want to boot with to install Windows. When I start up the pc, it says something about IDE port (Sorry, can't check what it actually says at the moment) and then gives me a disk boot failure and tells me to insert system disk and press enter. A PS2 keyboard will work to navigate to bios and boot devices, so is there anyway to boot from my USB flash drive, or do I need to find a CD drive and a disc? I would appreciate some help.

3 answers Last reply Dec 27, 2014 Best Answer Sep 19, 2014

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i7BabyAug 28, 2014, 7:24 AM

Go thru Tom's checklist - http://www.tomshardware.com/forum/261145-31-perform-steps-posting-post-boot-video-problems
Best answer

ChicanoSep 19, 2014, 7:21 AM

The USB functions are already enabled by default in the BIOS, so all you have to do is either change the first boot device to USB-HDD or better yet use the F12 Key to manually boot the USB Flash drive.

When the BIOS starts to Post, press F12 a few times > this will access the BIOS Boot Menu > select USB HDD > Select the USB Flash > Start the installation... before this, make sure you have connected the USB Flash drive to a USB 2.0 port... USB 3.0 will cause issues before installing the USB 3.0 drivers.

Download Gigabyte GA-78LMT-USB3 (rev. 4.1) English user manual in PDF
http://www.nodevice.com/download/user_manual/gigabyte+ga-78lmt-usb3/330064.html

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Aaron TallmanDec 27, 2014, 7:49 AM

This solution by Chicano works. What a great guy.

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GIGABYTE GA-78LMT-USB3 USB devices do not work, and can not boot from USB flash drive?

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