cut a hole in the top and put in a fan with an adjustable RPM. I found with mine that if I leave it at the same speed as the CPU fan the temps stay nice and cool, but they actually go up a few degrees with it blowing full speed.
http://www.newegg.com/product/produc...82E16811999344
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COOLER MASTER COSMOS 1000
M4A79T Pro
ATI 5770
AMD Phenom II X4 955 BLack Edition
COOLER MASTER 120mm Sleeve CPU Cooler
4gig Corsair Dominator
PC Power & Cooling Silencer 750 Quad Power Supply
Seagate 640 gig and 500 gig SATA in NAS drive
1T WD HDD system drive-DVD burner
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