Hi
Your version is pretty old, 5.0 update 3 came out in Oct 2013. I'd get that at a minimum.
Also, have you checked your server against the VMware HCL?
VMware Compatibility Guide: System Search
Cheers,
Nick
Book - Mastering VMware vSphere 5.5
Blog - LabGuides.com & NickMarshall.com.au
Podcast - vBrownBag.com
