ubuntu server issue

[watercooled]

You could try a live CD first rather than going through a reinstall only to discover it hasn't helped.

BTW, is the system overclocked at all?

Memtest is good for detecting defective RAM but AFAIK it can miss instability or compatibility problems.

[j.o.s.h.1408]

No it is not overclcoked. all is running on stock

[watercooled]

I'd probably try swapping hardware if you have access to some spares, mainly RAM and possibly hard drives.

[j.o.s.h.1408]

Ok i will try a live cd/usb build and see how stable that is first before swapping/changing hard drives.

In regards to RAM, i have already swapped and changed that