Should I set My Gigabit Network Adapter from "Auto" To Full

I have a server that is on a gigabit backbone with a gigabit network card. Currently the duplex setting in the propertes is set to "AUTO". BUT, SHOULD WE CHANGE THAT SETTING TO: 1 Gb Full Auto?? We had heard it was good practice to set your NIC cards to full duplex for  maximum performance and speed. Please advise.

See attached screen print for the details. Thanks!
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>>heard it was good practice to set your NIC cards to full duplex for  maximum performance and speed.

Firstly you should set it to full duplex.

there are two type of duplex

half duplex - able to send data one direction at a time
full duplex - able to send data both direction at a time (faster)

for the maximum performance it all depend, if you feel that your current connection is very slow then you should set it to maximum performance.

For me i will set it to maximum performance to get better performance.(no harm).

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ya you should set to 1 gb full auto to get more stable performance
Gigabit cards require autonegotiation when running at gigabit speed, you shouldn't turn that off.  Read more here:
You should not change gigabit interfaces to manual media delection.
If cable is working they do gigabit.
For manual selection there is also one more parameter - one card has to be link master and another link slave, which makes impossible to plug cables adhoc.
Fro gigabit there is no simplex, but one end should be link master and another link slave. With auto-select it is OK.
It reduces speed on broke cables - do cable verification if suspicious.
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