[vcf-midatlantic] Apple IIgs Black Screen

Hi, I have an Apple IIgs and when I boot it I hear a beep shortly followed by another beep. The screen remains black. I've tried a second known working Apple monitor to the same result. I've tried it with both floppy drives attached and not attached. I don't have any disks but was assuming I would at least see a complaint on the screen about missing startup disk. I don't see anything. Does anyone know what my issue is or can you recommend a good Apple II troubleshooting site? Working on Apples isn't something I have much experience with.