I don't have another machine to try the video card and ram in and I don't know anybody that has one either.
I tried different ram and still the same thing. Do you think updating the mobo bios will help any? Is there a chance of losing everything?
Here is a different list of beep codes from the one previously posted. I have highlighted the tones you posted on youtube in green:
IBM (long+short beeps)
No Beeps No Power, Loose Card, or Short.
1 Short Beep Normal POST, computer is ok.
2 Short Beep POST error, review screen for error code.
Continuous Beep No Power, Loose Card, or Short.
Repeating Short Beep No Power, Loose Card, or Short.
One Long and one Short Beep Motherboard issue.
One Long and Two short Beeps Video (Mono/CGA Display Circuitry) issue.
One Long and Three Short Beeps. Video (EGA) Display Circuitry.
Three Long Beeps Keyboard / Keyboard card error.
One Beep, Blank or Incorrect Display Video Display Circuitry.
MACINTOSH (different tones)
Error Tone. (two sets of different tones) Problem with logic board or SCSI bus.
Startup tone, drive spins, no video Problem with video controller.
Powers on, no tone. Logic board problem.
High Tone, four higher tones. Problem with SIMM.
So as you can see, everything, unfortunately, points to a mobo, memory or electrical problem. I'm sorry to say that you may have to bite the bullet and take it somewhere to know for sure.