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El Captain Drive Doesn't Show Up

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Joined
Nov 5, 2010
Messages
26
Motherboard
GA-P55A-UD3- F11
CPU
i5
Graphics
EVGA GeForce GTX 760
Mac
  1. Mac Pro
Hi all,

I was finally able to get my USB created and got everything installed. I was able to boot into El Captain on my first try using the USB...After that it disappeared. (It doesn't even show up when I try to boot from the USB) I have read posts about what others have tried, but I don't think those options work on my motherboard...Any help would be appreciated! I did a clean install on another hard drive for now...I want to get it right before I install on my SSD which currently is Yosemite 10.10.3.

Motherboard: Gigabyte GA-P55-UD3
CPU: 2.93 Ghz Intel Core 5
Graphics: Nvidia Geoforce GTX 760 2048 MB
Hard Drive: SSD 500 GB (+ 2 1 TB hard drives and 1 500 GB Harddrive)
Memory: 32 GB 1333 MHz DDR3

Thanks!
 
Joined
Sep 1, 2014
Messages
2,945
Motherboard
GA-H87N-WIFI
CPU
i7-4790S
Graphics
GT 740
Mac
  1. MacBook Pro
  2. Mac mini
Mobile Phone
  1. iOS
Did you run the post-install steps when you got in on the first boot? If so, how far did you get?

Can you boot from the hard drive now?

There are a lot of USB problems on the P55, so you should try the USB install drive on every USB port on the system (case, back of motherboard, etc.). There are a number of P55 notes in the big list of solutions.
 
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