Yes, it will fit but why bother? A 40mm fan on the stock NB heatsink fits perfectly and attaches with screws into the heatsink slots and cools just as well for about $4. I have used both on this board and The 40mm fan cools equally well. If the fan you choose is noisy get a Zalman fan speed controller for about $5. The HR-05 requires you to remove the MB and is a hassle to install, easy to knock off and cools no better that the above setup.