Drive spins but BIOS can't see it

My Server was found this morning in a constant reboot. The hard drive spins but BIOS no longer sees it. The drive is a WD1600YS

IF the drive is spinning, can I reclaim the data with any type of software that WD offers or do I need to invest is something from a third party?

Try diagnosing your drive with AFF Repair Station:
http://hdd-tools.com/products/rrs/

Here are some freeware utilities that will also test your drive’s firmware modules:
http://nazyura.hardw.net/000006.htm

You might also like to try this demo:
http://www.chinahdd.cn/hdd/WDR/WDR-DEMO.zip

I haven’t used it myself, so I don’t know if any functions actually work.