Most of the machines today can do without the CD drive. If the machine is old enough it's IDE and can cause boot failures. Unplug what we can do without.
Google THE DEAD PC to see the usual troubleshooting.
Once in a while a new PC tech wants to trouble shoot without changing parts, installing a new battery or other bit. They're just new.
This is a bit of a long one.
My desktop has been having a few hdd issues recently, and after getting them all working again, the cd-drive stopped working. It would open, try to immediately close, and would not spool up the cd for more than a second. Checking the registry, i thought i had found the drive and solved the issue (upper/lower missing) and reset. I immediately got a missing boot drive error and it powered off.
Now i dont get any display to either monitor, from the motherboard or either graphics card. Restarting will sometimes show bios for a couple of seconds before powering off and back on again on its own. Sadly this goes beyond what I can figure out alone, and any help would appreciated immensely.