Guys, problem solved!
An extra stick of 8gb ram solved the issue.
Currently running stabily on 12gb ram + 180gb virtual.
Took off the extra SSD drive.
Will update in 48 hours.
Thanks for all the suggestions.
Yeah, I suspected it needed more Ram. 4gb isn't enough these days. In my Biostar TB360 2.0 I needed 16gb minimum to handle max gpus.