   In/Out - Case fan strategies
  Hello,   My comp has been freezing up now and then due to heat, and I am about to add several more fans to increase the air flow in my case.  So, I was wondering if anyone of you guys had any suggestions.   My current slots/fans are:1) Power supply - Out2) Side of case - Out3) Top of case - (none)   -> ??4) Under power supply - (none) -> Out5) Front of case - (none) -> InRight now air is getting sucked in from the vents below the power supply, and I worry it is sucking in the newly expelled hot air, which would land it right on top of my video card and CPU.  So, for the back vents, I was thinking of installing an Out fan.I always heard installing an IN fan on the front is a good idea since the back is mostly OUT.The big question is, what about the top?  Should it be out or in?Thanks for any help! 
  How hot is it in your system? Is the over all system too high or is it just the CPU alone? I ask because if its just the CPU then the problem may not be fixed correctly by case fans. ;  Top fan should be out because hot air goes up . Front case fan(s) should be in. I have installed a back in-fan below the video card, and a side in-fan near the video card because I''m oveclocking the card . And power supply fans out.   "C lets you shoot yourself in the foot rather easily. C++ allows you to reuse the bullet!"  ;  I have a Radeon 9700 Pro, and I read about other people having their system lock up.  This always happened when my house became over 82 degrees and when playing graphic intesive games like Marrowind, and even the Dawn demo, but not just at the desktop and cruising the web.I may do that; make my side suck in, and put one on top blowing out.  Yes indeed, hot air rises, and I almost forgot that.Thanks!BTW, I picked up two Stealth fans, and put one in the front sucking in and another in the back blowing out.