Dear OPB, I have a question - can the top portion of NB heatsink be detached? For some reasons I have to install HR-03 GT with the back position to make all PCI-E and PCI slots available, the only concern I have to this board is the top portion of NB heatsink hit HR-03 GT. From the pictures I guess I can take off the top portion of NB heatsink (means no heatpipe and top fins), is this true?