Nof before someone moves this to the overclocking thread, let it be known that this problem only comes up when overclocking AND other time (although rare). I have an Abit BD7 with a P4 1.6A. The system will not boot consistently. At default speeds and voltages, the system does fine. Now I have found that under moderate O/C'ing (at and below 133MHz) if the systems locks on a cold boot, or after saving and exiting the BIOS, that if I hold down the power button 4 seconds to power off, then right back on again, the system boots. And is ROCK STABLE in Windows. The higher the bus speed goes, the less chance I have of getting the system to boot. I KNOW its not the processor, because I had the system up and running at 2560MHz (16*160) and was again ROCK STABLE in Windows. The error code on the LCD readout says "26" when it locks. I am also using Micron RAM and a 460W poower supply. Any clues? I also have update to the latest BIOS and have tried varoius sticks of RAM from Nanya, Samsung, Micron, and Generic. I cant just leave the system on all the time as this is a prototype for a workstation at my job...if it were my home system, I wouldn't care. 