Hello, I have a P8Z77-V Premium and a Intel Core i7-3770K Ivy Bridge 3.5GHz processor, but the CPU is getting too hot with the stock heatsink during periods of heavy usage, such as video encoding. I was looking for a compatible heatsink. I previously bought a ZALMAN CNPS9900MAX-R 135mm but was unable to fit it in properly due to the size of the bracket and lack of bolts. I'm wondering if I did something wrong in the installation or if this motherboard requires a special kind of heatsink.
I have a COOLER MASTER HAF 912, so there's a fair amount of space for the heatsink to physically fit, but still limited.