Critical status for RAID 1 array
First post here, but thanks in advance for any help you may be able to provide.
I put together a new system for a gentlemen, specs are as follows:
Asus M4A88TD-V EVO/USB3
Kingston 8GB DDR3-1600 Hyper-X
AMD Phenom II X6 1090T Black Edition
2x 1TB Western Digital SATA (Black) - RAID 1
2x Asus EAH5770
Cooler Master 850W Silent Pro
Everything has been fine for a few weeks until yesterday, my customer stated that when he started his computer up he got RAID critical status alert during POST. Other than the message, the OS loads fine. I've attempted to reseat all the connections, I've also swapped SATA cables, and I tested both drives with WD Data Lifeguard Diagnostics which came back clean.
Has anyone heard of or can provide any steps that can be taken to correct the issue? Is it possible that a drive is bad this soon and sneak by testing?
Any guidance would be greatly appreciated because I'm kind of at a loss of what could be causing it.