Thuan

Hello everyone i am wondering if anyone can help me with this problem. My system runs fine wen i only activate 8 cams it suppose to support 16, but when i try to activate the 9th camera my computer just freezes and i have to reset. Here is my set up. 3.0Ghz P4 (HT turned off), 512 Ram (dual Ch), Radeon 7000 64mb, 300gb hd, asus motherboard (sis chipset). Any help will be appreciated. Thanks