Hi, I just RECENTLY posted on a BIOS problem that had orccured in my computer. I reset the BIOS and the computer is working properly now. I just tried to put my original Hard Drive back in, and the computer will not detect it. When I boot the drive makes a beeping and clicking noise for about 30 seconds. I originaly thought that this was the beep code, but HEARING that it beeped about 35 times, I ruled that possiblity out. I tried reformating and reinstalling a new OS, but it said there was no Hard Disc CONNECTION.

If any one could help I would greatly appreciate it. Thank you to all that have helped me.HDD's do NOT beep...if the beeps are short and continuing you have CONNECTED something improperly and or unseated a connection. Re-check all your connections including re-seating the RAM and vid card as well.

patio.  
I reseated the RAM and Video card like you said, but it's still not detecting it. I tested the system with other spare HDDs, and they seem to work fine. I have also noticed that my floppy drive doesn't power up durring the boot process, although im not sure if that has any relevence.Oh, and I forgot to add that the beeping noises are not continuous and end after the system has finished its attempt at detecting a HD.Use a magnifying glass under a good light and look very CAREFULLY at the drive connectors for any bent pins.