Unknown A1200 Accelerator Card

[zipper]

You get 2 MB from 4x 514400 chips as far as I can count

[sir_inferno]

Sounds like you've got a bad RAM chip. Are they socketed or just soldered in?

Ah, bummer Socketed. I tried reseating them but to no avail.

You get 2 MB from 4x 514400 chips as far as I can count

Really? Doesn't the name (HM514400BZ7 1Mx4 DRAM) suggest that you get 1MB per chip. 4 chips, meaning 4MB?

[zipper]

http://docs.google.com/viewer?a=v&q=cache:zVpFw_-TDsAJ:people.engr.ncsu.edu/efg/506/sum99/001/hw1-mem-solutions.pdf+1m+x4+memory+configuration+how+much&hl=fi&gl=fi&pid=bl&srcid=ADGEESgkBU5PXRDf_ywN56Q0HWoLhfz-HqwJ_j8FtV4cPg3eKUjAK2Iyh4IZPiGbYErLjH_xdFOURPCxRc3XNxFzRFQdAKLta0E6f1Q2fbmw8tqgS7AIyYLvWI1jbNttS2GoK0QVV2l3&sig=AHIEtbTzKkK05xMsANAEN20jqBCXa_mAGg

[sir_inferno]

http://docs.google.com/viewer?a=v&q=cache:zVpFw_-TDsAJ:people.engr.ncsu.edu/efg/506/sum99/001/hw1-mem-solutions.pdf+1m+x4+memory+configuration+how+much&hl=fi&gl=fi&pid=bl&srcid=ADGEESgkBU5PXRDf_ywN56Q0HWoLhfz-HqwJ_j8FtV4cPg3eKUjAK2Iyh4IZPiGbYErLjH_xdFOURPCxRc3XNxFzRFQdAKLta0E6f1Q2fbmw8tqgS7AIyYLvWI1jbNttS2GoK0QVV2l3&sig=AHIEtbTzKkK05xMsANAEN20jqBCXa_mAGg

I'll take your word for it.

So the 2MB reading is correct, in which case the only matter outstanding is the 16 vs 32 bit bus width.

Any solutions? Or if not, will there be any huge impact on performance?