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Questions about GIGABYTE products => Motherboards with Intel processors => X99 Motherboards => Topic started by: MachineShedFred on May 28, 2015, 04:04:56 am

Title: X99 Gaming 5 reboot loop
Post by: MachineShedFred on May 28, 2015, 04:04:56 am

System was working great for a week... until today - now it powers on for about 5 seconds and turns off, then repeats this forever.  Never any video when I did have a GPU installed - removed it and all other devices for troubleshooting.

I've stripped it down to just mainboard, RAM, and CPU.  I've noticed that when I first switch on the power supply, a little orange LED labeled "FBIOS LED" between the USB connectors turns on for about 2 seconds and then gets very bright before going out.  I've tried a different power supply.  I've tried one DIMM rather than 4.  I've re-seated the CPU (Intel Core i7-5930K).

I'm at a loss.  Ideas?

Title: Re: X99 Gaming 5 reboot loop
Post by: Kevin on August 05, 2015, 12:48:39 am

Quote from: MachineShedFred on May 28, 2015, 04:04:56 am

System was working great for a week... until today - now it powers on for about 5 seconds and turns off, then repeats this forever.  Never any video when I did have a GPU installed - removed it and all other devices for troubleshooting.

I've stripped it down to just mainboard, RAM, and CPU.  I've noticed that when I first switch on the power supply, a little orange LED labeled "FBIOS LED" between the USB connectors turns on for about 2 seconds and then gets very bright before going out.  I've tried a different power supply.  I've tried one DIMM rather than 4.  I've re-seated the CPU (Intel Core i7-5930K).

I'm at a loss.  Ideas?

Have a look at my recent post.
http://forum.giga-byte.co.uk/index.php?topic=16246.0