|Your temperatures are well within the safe zone and are not high considering the load you were running if you were running the stock cooler, but with the aftermarket cooler, I would have expected at least slightly lower numbers. You will see these numbers lower slightly as the thermal compound sets in and the heat/cool cycles allows better thermal transfer. BUT you should make sure you have applied the thermal paste correctly (too much, too little, or attempting to spread it is not optimal) Look at this site:|
If you want to try again, purchase a premium compound and clean off the old with rubbing alcohol.
You have to be a little bit crazy to keep you from going insane.
If all else fails, read instructions.