Pentium4 processors were infamous for their heat output. I have personal experience with this, as I had a computer with a Pentium4 that would rapidly heat up my tiny 7.5 x 7.5 foot bedroom (2.28x2.28m). What I wound up doing is fashioning a tube from thick plastic sheet to pipe the cold air output from my window air conditioner into the computer’s intake.
In retrospect though, it probably would have been wiser to instead pipe the computer’s exhaust into the air conditioner’s intake.
