My PC running WindowXP Pro, running normally yesterday, but after turn off for a while and suddently cannot turn on completely. The red LCD on the motherboard turns on, the CPU fan spinning, the harddisk light on the case turns on, the green light of the CD-RW keeps turn on, no beep at all, the power light on the case turns off, nothing happens, the monitor has power (the light is amber), but no screen (only black). I have try to take out the CMOS battery and reinstall it, can’t help. I check all cards, they are all sit correctly, all cables are replaced and should be OK ! Still the same ! I try to put the Win XP disc to boot the system, the same happened ! When I discoonected the CD-RW from the PC, the harddisk red light not turn-on. I can’t reset the PC with my Reset Button. Sometimes, I can turn-0ff the PC by pressing down the power button, but sometimes I can’t, I have to unplug the power cord. If I only have the power cord pluged for the CD-RW, I can see the disc turn and the green light flashing, after I connected the cable to the CD-RW, the disc won’t turn only the green light keeps on. If the disconnected the CD-RW from the PC, the harddisk red light won’t turn on. I havn’t add any hardware or card to my PC recently. Need help urgently !! Thanks !!