Seems Crucial's new MX100 is having a few issues.
My 512GB one dropped out (Windows Server 2012R2 more or less died, but was still able to serve files off the HDDs). Upon reboot the MX100 was found but the server was unable to boot. Took 3 cold reboots to get it to show up and boot. It ran for about 6 hours then dropped out again.
Seems there's a load of others with the same issue:
MX100 will not boot sometimes - Page 5 - Crucial Community
So, just be careful if you're relying on a MX100, I know they're a popular drive due to the price. Yet again, buy cheap, buy twice.
My 512GB one dropped out (Windows Server 2012R2 more or less died, but was still able to serve files off the HDDs). Upon reboot the MX100 was found but the server was unable to boot. Took 3 cold reboots to get it to show up and boot. It ran for about 6 hours then dropped out again.
Seems there's a load of others with the same issue:
MX100 will not boot sometimes - Page 5 - Crucial Community
So, just be careful if you're relying on a MX100, I know they're a popular drive due to the price. Yet again, buy cheap, buy twice.