Is this host listed as compatible on the VMware Hardware Compatibility Guide?
VMware Compatibility Guide - System Search
Also, looks like there's some drivers not compatible and/or lining up with the hardware properly.
See this KB as well. You're running 6.5 U1 on this system, so first thing I'd do is bring it up to the current patch/update level before further investigation.
what is server model
provide output of
esxcli software vib list