I have checked the bios and the sata controller mode is in RAID.
I have removed and re-attached both sata power and data to the drive and it is still not spinning up. (although i did get it spinning again by removing the PCB of the drive and re-attaching it but it was only very breifly, as in spun up beeped and stopped again)
I'm thinking the drive may be either dead or on its way out.
thanks for your reply