How to disable vrefb pins in quartus?

[Altera_Forum]

Hello All, 

 I have routed a 3.3v to VREFB1N0 in cyclone IV.  However,now,I am no longer needed that voltage reference.  So,should I disable the voltage reference pins?  If yes,how can I do it?By changing that pin to output pins?  Hope to hear from any of you sooner.  Thanks

[Altera_Forum]

The questions seems to be based on wrong assumptions. 

 The VREF pins are used for voltage referenced I/O standards like SSTL with DDR RAM. Their function is automatic and don't need specific assignments (of course, they must not be configured as outputs when used as a reference input). Unused Vref pins are treated similar to unused regular I/Os, sharing the global unused pin policy.  I can't imagine a reason to connect Vref to 3.3V.

[Altera_Forum]

Thanks for the explanation. To be frank, I was connecting the vref wrongly and somehow that bank does not working as expected(leds connected to that particular bank light up when they are supposed not to be) 

That's why I was wondering if it has  something to do with the wrong voltage assignment on that bank vref

[Altera_Forum]

Since VREF pins are usually I/Os also, make them inputs.