I wouldn't be surprised if it could. I am very impressed with my 8045. I can run my system with passive cooling on the CPU, but I do have good airflow through the case. Anyway, I wouldn't risk it.. I think you should go WC if you want to use a pelt.
I'm not sure, but doesn't the pelt have to have at least the same power rating as the CPU. If your CPU dissipates 90W of heat, and you have an 85W pelt, I think it would actually heat up the CPU....