BSOD after new CPU HeatSink

So me and my friend installed a new cpu heat sync and dusted out his computer with a air compressor. we just installed a new windows 7 os and he still is blue screening. he was getting KMODE_EXCEPTION_NOT_HANDLED / SYSTEM_SERVICE_EXCPTION / IRQL errors and such. We also moved the ram around but i dont think it is the cause. the heat sink we installed was http://www.newegg.com/Product/Product.aspx?Item=N82E16835118036

 

Here is his build

https://drive.google.com/file/d/0B1wuTorBJcHkY3JSY1haSFBqLVE/edit?usp=sharing