when money is tight...
for 80 bucks you can get a all in one water cooler for cpu.
that should allow you to re test everything you have and get some better numbers.
it comes with a single fan/radiator connected to a cpu heat sink.
then just blow an extra fan on the back of the radiator to help cool it faster.
that's where i would start...getting that cpu under control...you can still get pretty good numbers on air for video....im u there on air, so i know it's possible....