Raid 5 Failing to Mount

Hope I can get some help on this issue, I am currently testing out the software on 30 day trial and happened to have one of my Seagate 4TB NAS drives go completely dead during my trial. I have been running the array degraded for the past week while waiting for the RMA and when I rebooted with the new drive installed, my original array will not mount. It gives no error, just shows progress to halfway on the mount and then back to an unmounted state. Sadly the array also will not rebuild until it mounts either, showing waiting to mount on the rebuild state. Any help on the matter would be awesome so I can at least get my array back online and rebuilt! Make a new customer out of me guys! :)