I have checked the processor match tool and found that Xeon E3-1230 (sandy bridge) isn't included in the tool, so that I am not sure with the compatibility of Xeon E3-1230 and DQ77MK.
If not, is there any motherboards which are compatible and has VT-d support?
We can ensure compatibility only with the processors included on the official supported processor for the board. Also we would like to inform that currently there are no motherboards listed as compatible for this processor, just for Intel server boards:
http://ark.intel.com/products/52271/Intel-Xeon-Processor-E3-1230-8M-Cache-3_20-GHz ARK | Intel&# 174; Xeon&# 174; Processor E3-1230 (8M Cache, 3.20 GHz)