I previously had an open box motherboard as part of a build to be used as a fileserver and was only able to get a display when I used a GPU (ONBOARD display didn't work). When I also found that the LAN PORT was not working I concluded that the motherboard was at fault and returned and replaced it (with a different board). Now, I am having the same lack of display, but UNFORTUNATELY no longer have the GPU to test.

Any ideas on if there could be an alternate cause for the lack of display?

Thanks,
EvanThe immediate suspect is your monitor/monitor cable.Well I've tried with two monitors, and both had the same issue of working with the gpu installed but not the onboard graphics...If you plugged the GPU in then your motherboard might have automatically disabled the onboard video. It should automatically revert to the onboard video, though.
You'll have to get hold of a GPU to get into your BIOS, from your description of your situation. Once you do, you can SET onboard video to enable:

Well the CURRENT board is a new out of box board so I don't see how that could have happened unless that's the default setting...I'll see what I can do as far as getting a gpu.I think the usage of "GPU" in this discussion is misleading. It's being used to mean an add-on/expansion card for the graphics display. "In a personal computer, a GPU can be present on a video card, or it can be on the motherboard."Thanks for the helpful clarification, soybean. So the appropriate term is clearly "graphics card." to save time, I'll type "GFX card."K, so I've gotten a graphics card and installed it, but now when I connect it to the (working) monitor I'm still not getting any image.

I'm really getting confused now, the old motherboard would work with a graphics card but not with the integrated display, and now the new board isn't working either. Is it just bad luck with the boards or could it be some kind of weird power supply issue?