for the hardware maintenance manual, look for motherboard picture, find the Clear CMOS jumper, read instructions, reset the CMOS memory to default, and try booting again. btw a sata DVD drive is <$15.
I have a Lenovo 3000 J Series desktop. It has been running fine for years. However, today I tried installing a SATA to IDE converter, which I have used on another computer (same converter itself), to be able to use a SATA DVD-R drive, as the old DVD drive had died, and now the Lenovo will power up but won't boot up. Here's what I did:
1) Shut down Windows, turned computer off.
2) Opened side panel, put converter into IDE ribbon slot, connected power and data cables to DVD-R drive.
3) Turned PC back on. The fans go on, and I can hear the hard drive spin up, but the monitor never registers a signal, and the fans keep spinning at full speed the whole time instead of slowing down, as they usually do.
4) Turned PC off.
5) Removed converter and cables.
6) Turned PC on. Same deal with the fans, etc. It doesn't boot up.
I can't imagine that using this converter once could have killed it. I heard no popping, smelled no burning, saw no flashing. It just won't boot up now. I don't know what to do. Please help me get the computer back on!!