which one are you using....
the orginal....
http://www.heatsinkfactory.com/thermalright-1366-bolt-thru-kit-.html
or Rev B?
http://www.frozencpu.com/products/8417/cpu-tri-56/Thermalright_LGA1366_Bolt-Thru_Board_Mounting_Kit_-_Rev_B_Ultra_series_HR-01_Plus_HR-01_4U_HR-01_3U_Ultima-90_IFX-14_Venomous_X_CoGage_True_Spirit.html?id=UXhw8z9p
the orginal....
http://www.heatsinkfactory.com/thermalright-1366-bolt-thru-kit-.html
or Rev B?
http://www.frozencpu.com/products/8417/cpu-tri-56/Thermalright_LGA1366_Bolt-Thru_Board_Mounting_Kit_-_Rev_B_Ultra_series_HR-01_Plus_HR-01_4U_HR-01_3U_Ultima-90_IFX-14_Venomous_X_CoGage_True_Spirit.html?id=UXhw8z9p