I just installed a A7N8X Deluxe motherboard in a MMNY Case with Xtreme 400watt power supply, PNY DDR 333 256MB, ATI all-in wonder Radion video card. Before installing hard drive, dvd burner from old computer I powered up unite with just board installed, video card and memory. It booted up fine, I went into bios and set smart monitering for cpu and enabled quite fan. Everything seemed OK except hardware monitor in bios didn't show fan rpm for secondary fan I had installed (with three wire for monitering) The CPU and fan are retail version, case has two extra fans besides power supply. Since it powered up ok I moved my Maxtor 120GB hard drive, and tdk DVD+RW drive to computer. When I powered up I get nothing, the green light comes on fans all run but no post beeps or anything else. I tried using a Antec 300watt power supply, tried using a PC 2100 Cruical DDR, different ATI AGP video card still nothing. The fact I get not post beeps has me at a loss as to what the problem is. Any input would be welcome.