Will this fit?

[Grinchy]

Newegg.com - XIGMATEK HDT-S1283 120mm Rifle CPU Cooler - CPU Fans & Heatsinks

Will that fit on...?

Newegg.com - DFI LANPARTY DK X48-T2RS LGA 775 Intel X48 ATX Intel Motherboard - Intel Motherboards

Looks like its really close.

 

[NightSurge]

Hmmm.. I'm not sure if the lower section of the Xigmatek would fit over those heat pipes. Regardless, if you decide on the Xigmatek for your new build, get the ACK retention bracket! It is 10x easier to install than the pushpins!

 

[Grinchy]

Well, what do you think I should do?

 

[kobe24]

it should get the dimensions from the website.