Hi manitm ,
your pc cannot pass the POST process.
Try unplug the power cord and remove all removable parts like KB/Mouse, PCI addon cards, USB devices, unplug the HDD data cable as well. then holding down the power button over 20 seconds to discharge and reset the system.
Connect just the Power cord and try power on the PC.
If you see the boot screen pass the "AMIBIOS system configuration (c) 1985 - 2001 American Megatrends..etc", power off the PC and connect the HDD data cable, then power on teh PC again.
Hope this can boot your PC to desktop.
Happy New Year!
Bill