You have problems with your Connexant modem drivers: CAX_CNXT.sys
Find newest here: Conexant: Support
Though I'm not yet sure if it is W7 compatible. You might want to (temp) delete it for testing purposes...
My Computer
At a glance
Windows 7 64b UltimateI7-2600 3.40GHz - testing various OC levels..2x 4Gb DDR3/1333GTX570 - testing OC levels