This is another one of those silly problems that don't make any sense. I bought a UPS about six months ago. It died. Waiting for a replacement. Now I changed nothing expect my PC isn't plugged into any UPS right now.
I do a cold boot, the hard drive starts to spin up, all front panel lights are glowing, I can hear the power supply fan, CPU and case fans, so no doubt the system has power yet computer won't boot. It freezes before even displaying the BIOS copyright page. The monitor remains blank and totally black.
I need to turn off power switch on back of computer, then press the reset button, then turn power off then back on again, then and only then will the system boot. Been doing this for several days, driving my nuts. Anyone?
I do a cold boot, the hard drive starts to spin up, all front panel lights are glowing, I can hear the power supply fan, CPU and case fans, so no doubt the system has power yet computer won't boot. It freezes before even displaying the BIOS copyright page. The monitor remains blank and totally black.
I need to turn off power switch on back of computer, then press the reset button, then turn power off then back on again, then and only then will the system boot. Been doing this for several days, driving my nuts. Anyone?