My PIII, 64mb PC100 RAM, Tyan motherboard, AGP video system was working fine. I saw that I was using a 40 pin IDE connector on a IDE 66 hard-drive and decided to install the 80pin cable. It sounded simple enough.
But the next time I tried to boot I heard the beep code that told me BIOS could not start any video display (I am using an AGP video card).
What could I have done to cause this?
I have since changed the IDE cable back to the original one, checked for unconnected cables and everything, but I continue to hear to beep.
The odd thing is that the computer seems to be continuing the boot sequence even without the display, for I hear the hard drive start and it continues its activity for 30 or so seconds. But since I can't see anything, I can't change any settings to try and fix the problem. Pressing Ctrl, Alt, Delete twice restarts the system and I get the same beebing problem again.