@Imerion:
By the looks of it, you have 4 MB (4 1MB 72-pin SIMMs) on the A4000 motherboard, and 8 MB (8 1MB 30-pin SIMMs) on the SCSI board. The SCSI board is maxed out, and these 8 MB are rather slow.
The A4000 motherboard supports a maximum 16 MB of fastram, in the form of four 4MB 72-pin SIMMs.
-Paul
