Steady beeps is usually an indication of RAM error - this is sounding more like a bad slot than a bad chip. If possible try a different slot - instead of slot 1 use slot 2. Some boards require that you insert RAM logically say from slot 1 to 4 so if that's the case and slot 1 is hosed then you may be right about the system board being totally screwed. Something I would do before I did anything else is reset the CMOS. Most boards have a little watch-sized battery you can remove to force setup to reset and flush its hardware config tables. I've seen CMOS get frozen up before and considering you're changing around hardware quite a bit this can cause the BIOS to foul up and fail to update CMOS and do things like not recognize RAM chips. The steady beeps are most likely due to CMOS being fouled or a bad memory slot. I usually take the CMOS battery out, turn the system on without the battery and let it post then turn it off again then put the battery back and see if it acts different on the next boot. Sorry I don't know your board well enough to give you more specifics and I'm not really very up on new hardware so forgive me if your board is different. Good luck.