I'm also contemplating using the same board as the base of an upgrade for our now very aging home server, as it looks like it ticks all the boxes. However, I'll be building in the Silverstone DS380, which while a great little case from many perspectives (8x hot-swap 3.5" bays!) unfortunately requires rigging up baffles inside the case to direct adequate airflow over the HDD cage and therefore as a consequence leads to poor airflow over the CPU socket area.
I'm therefore hoping to improve the CPU cooling to compensate, either by replacing the stock fanless heatsink with something aftermarket or attaching an additional fan to the stock heatsink, as you seem to have done above. However, I haven't found any measurements posted online as to the mounting hole dimensions or the ease of attaching a fan with eg. zip ties. Can you offer any insight into how easy this was/anything to be aware of?
I'm therefore hoping to improve the CPU cooling to compensate, either by replacing the stock fanless heatsink with something aftermarket or attaching an additional fan to the stock heatsink, as you seem to have done above. However, I haven't found any measurements posted online as to the mounting hole dimensions or the ease of attaching a fan with eg. zip ties. Can you offer any insight into how easy this was/anything to be aware of?