gigabit ethernet question

ALso... does it support hyper v ?? in task manager it says hyper v supported.. but virtualization is disabled???

If virtualization is disabled, then enable it in the BIOS.

1 more thing. How many hyper v systems can i run on this server if i was gonna use linux and windows

Depends on what you are running ...

I Have a Dell Power Edge r200 server.. It says its a gigabit ethernet adapter, then why am  i only getting 100 mbps per nic? I Have the nics teamed in windows server 2012 so im getting 200 mbps.. why not 1 gb per nic ? whats wrong?? I Installed the driver today for it and it didn't make  a diffrence.

Which driver version are you using?  This is most likely affected by something other than the server ... check your cable and switch.