That error is a code from the BIOS. It has happened because something has failed during the POST. What I would do is unplug the computer, and make sure that everything is connected properly. If you are 100% sure that everything is connected properly, then with the computer completely unplugged, remove the CMOS batter from the motherboard and give it a minute or two. Put the battery back, plug the machine in and try to boot it again.
If this still fails, you can try putting a different PSU in. I'm not too optimistic that this will work. I'd rather try boot the machine with a different CPU and see if that works. You can also try to boot it with only one RAM module at a time, and alternate slots until you have tried each module one at a time in each slot.
If all of the above does not work, I would suggest contacting Gigabyte for more clarity on what is happening, by quoting the error message in your email. They will be able to tell you what actions to take, or if you should RMA that board. I've tried to find out what exactly that error could mean, but I've not been able to. Gigabyte will know what you can do if nothing can resolve this.
If this still fails, you can try putting a different PSU in. I'm not too optimistic that this will work. I'd rather try boot the machine with a different CPU and see if that works. You can also try to boot it with only one RAM module at a time, and alternate slots until you have tried each module one at a time in each slot.
If all of the above does not work, I would suggest contacting Gigabyte for more clarity on what is happening, by quoting the error message in your email. They will be able to tell you what actions to take, or if you should RMA that board. I've tried to find out what exactly that error could mean, but I've not been able to. Gigabyte will know what you can do if nothing can resolve this.