OK, so as sysinfo reports a machine runnning at 6.72 times A1200 basic, the 030 is running, some part of the card must be autoconfig-ing.
Is your board one of the ones with jumpers to set the RAM size? If so, they may be incorrectly set and making the RAM non-visible to the board, although addmem can still address it corrrectly.
The other possibility is one I get on a regular basis with A1200 trapdoor expansions, corroded/dirty contacts. Try removing/wiggling the board around a few times to see if that helps in anyway (with the power off, of course ;o) )
