I just bought the Asus P4B266 yesterday, along with a boxed 1.7 cpu. Installed the cpu, hs/fan, Radeon video card, 256m Crucial pc2100, 400w P4 power supply. Layed the m/b on a non-conductive mat, connected p/s after verifying all jumpers in default position and left it in jumperfree mode. Turned power on and all I get is the green led and cpu fan spinning. No post or beep codes. I even removed the ram and don't get any beeps. I removed the battery, shorted the CMOS R197 and still no post. Tried another video card, same thing. Tried it with floppy and hdd connected and disconnected, same results. I've tried the P4 12v plug plus the EZ plug, same results. I then tried another power supply, same results. I've reseated the cpu several times, verifyed jumpers several times. Any suggestions greatly appreciated. The p/s, video card, and ram were all working in the other computer. Thanks, JF