What are your ambient temps right now in the room?
What TIM are you using?
And, what method?
I can't remember my stock temperatures with my TX3 at the time. But I think I was around the low 50's mark under full load.
At the end of the day, if you're still worried. Go for another re-seat.
Nobody ever told me what TIM was so I'm just going to assume that it's thermal grease, and I'm using MX-2.
The method I planned on using was the pea sized dot method where you just turn on your computer and let the thermal grease spread itself out, but when I was trying to mount the cooler, the cooler did move around a little bit, spreading the thermal grease.