I have a bare bones unit with a vxproII motherboard [m559], 233mmx cyrix m2 cpu, 2MB PCI video card. the problem is I turn powerup and power unit fan and heat sink fan is running, power led is on, cd rom led flashes, keyboard lights flash, but no bootup, no signal input display on monitor. If I keep switching power on and off machine eventually starts[30-60 minutes] and runs fine.
All drive cables are on correctly, all jumpers correct according to mainboard manual. RAM is seated properly and video card has been changed to different slots with no results. video card, monitor have been substituted as well as power supply. Motherboard is not grounded on frame. Power unit checked for proper voltage.