i put together a system using an abit ab9 mobo, pentiumD 805, corsair ddr2 memory , WD 160GB HHD, and a liteon DVDr i am having a problem getting thru post i get no beeps however after about 30 seconds the computer powers down, i suspect that it may be the PSU which came with the cheapo apevia case i bought has this happened to anyone before ? any help would be greatly appreciated thanks