Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have a GA-MA790FXT-UD5P motherboard. I have an old USB drive that it will boot from just fine. I have two (identical) newer ones, but they will not boot. I found out that the newer ones aren't even recognized in the BIOS under the list of recognized devices. They will, however, work fine in other machines. Any idea what might be going on?

share|improve this question
Are the newer USB drives larger than 2GB? Is the old one 2GB or smaller? Best case, you may just need to update your BIOS. – user3463 Aug 11 '12 at 6:08
Some motherboard bios software will only enable a couple of USB sockets during bios/bootup. Any chance you're using different USB sockets during these comparison tests? – jdh Aug 11 '12 at 22:52

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.