But you can use the AV.
Does the csync circuit let you see POST and other stuff? I'm trying to set up a NAS box at my house and I don't want to leave a monitor attached to it and I've got a VGA modded PSOne LCD kickin around. It works perfectly in Windows using Powerstrip but it doesn't show anything for POST.
I'm planning on using FreeNAS to make a NAS computer and it's command line based so I kinda need it to work without software utilities.